{"id":1275,"date":"2026-03-13T00:09:45","date_gmt":"2026-03-13T00:09:45","guid":{"rendered":"https:\/\/cn-hawe.com\/?p=1275"},"modified":"2026-03-12T00:27:21","modified_gmt":"2026-03-12T00:27:21","slug":"press-brake-air-bending","status":"publish","type":"post","link":"https:\/\/cn-hawe.com\/vi\/press-brake-air-bending\/","title":{"rendered":"Ch\u1ea5n U\u1ed1n Tr\u00ean M\u00e1y \u00c9p: T\u1ea1i Sao U\u1ed1n Kh\u00f4ng Ti\u1ebfp X\u00fac L\u00e0 B\u00ed Quy\u1ebft \u0110\u1ec3 G\u00f3c U\u1ed1n \u0110\u1ed3ng \u0110\u1ec1u"},"content":{"rendered":"

V\u00e0o th\u1ee9 Ba tu\u1ea7n tr\u01b0\u1edbc, b\u1ea1n \u0111\u00e3 u\u1ed1n m\u01b0\u1eddi thanh gi\u00e1 t\u1eeb th\u00e9p A36 d\u00e0y 1\/8\u2033. Thanh \u0111\u1ea7u ti\u00ean \u0111\u1ecdc 90\u00b0. Thanh th\u1ee9 hai 91,5\u00b0. \u0110\u1ebfn thanh th\u1ee9 t\u00e1m, b\u1ea1n \u0111ang nh\u00ecn ch\u1eb1m ch\u1eb1m v\u00e0o 93\u00b0 v\u00e0 h\u1ea1 ram xu\u1ed1ng th\u00eam 0,010\u2033 nh\u01b0 th\u1ec3 \u0111i\u1ec1u \u0111\u00f3 s\u1ebd khi\u1ebfn th\u00e9p h\u00e0nh x\u1eed \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n

B\u1ea1n kh\u00f4ng \u0111ang t\u1ea1o h\u00ecnh kim lo\u1ea1i.<\/p>\n\n\n\n

B\u1ea1n \u0111ang g\u00e2y s\u1ef1 v\u1edbi n\u00f3.<\/p>\n\n\n\n

\u1ea2o t\u01b0\u1edfng \u201cK\u1eb9p v\u00e0 \u00c9p\u201d: T\u1ea1i sao c\u00e1c l\u1ea7n u\u1ed1n c\u1ee7a b\u1ea1n kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t<\/h2>\n\n\n\n

\u0110\u1ee9ng tr\u01b0\u1edbc m\u1ed9t m\u00e1y u\u1ed1n \u0111\u1ee7 l\u00e2u, n\u00f3 b\u1eaft \u0111\u1ea7u tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t c\u00e1i d\u1eadp. \u0110\u1ea7u d\u1eadp h\u1ea1 xu\u1ed1ng. Khu\u00f4n n\u1eb1m \u1edf \u0111\u00f3 \u1edf 90\u00b0. Kim lo\u1ea1i b\u1ecb \u00e9p v\u00e0o gi\u1eefa. V\u00ec v\u1eady, n\u1ebfu ph\u1ea7n kh\u00f4ng ph\u1ea3i 90\u00b0, c\u00e2u tr\u1ea3 l\u1eddi c\u1ee7a ng\u01b0\u1eddi m\u1edbi l\u00e0 \u0111\u01a1n gi\u1ea3n: nhi\u1ec1u t\u1ea5n h\u01a1n.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t c\u1eadu b\u00e9 cho t\u1ea5m th\u00e9p d\u00e0y 3\/16\u2033 v\u00e0o khu\u00f4n V d\u00e0y 1\/2\u2033 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u00e1p l\u1ef1c g\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u00e1y v\u00ec g\u00f3c c\u1ee9 m\u1edf ra. C\u1eadu \u1ea5y ngh\u0129 r\u1eb1ng n\u1ebfu 40 t\u1ea5n kh\u00f4ng \u0111\u1ee7, th\u00ec 60 t\u1ea5n s\u1ebd \u0111\u1ee7. \u0110\u1ebfn gi\u1edd \u0103n tr\u01b0a, ram \u0111\u00e3 k\u00eau r\u00ean, d\u1ee5ng c\u1ee5 \u0111\u00e3 b\u1ecb ph\u00ecnh ra \u1edf vai, v\u00e0 c\u00e1c ph\u1ea7n v\u1eabn tr\u00f4i l\u1ec7ch m\u1ed9t \u0111\u1ed9 r\u01b0\u1ee1i. B\u1ed9 d\u1ee5ng c\u1ee5 \u0111\u00f3 c\u00f3 gi\u00e1 h\u01a1n chi\u1ebfc xe t\u1ea3i c\u1ee7a c\u1eadu \u1ea5y. M\u1ed9t sai l\u1ea7m \u0111\u1eaft gi\u00e1.<\/p>\n\n\n\n

M\u00e1y u\u1ed1n kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t khu\u00f4n. N\u00f3 l\u00e0 m\u1ed9t c\u00e1i \u0111\u00f2n b\u1ea9y. V\u00e0 th\u00e9p kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ea5t s\u00e9t. N\u00f3 l\u00e0 m\u1ed9t chi\u1ebfc l\u00f2 xo.<\/p>\n\n\n\n

V\u1eady \u0111i\u1ec1u g\u00ec th\u1ef1c s\u1ef1 x\u1ea3y ra khi b\u1ea1n \u0111\u00e8 l\u00ean b\u00e0n \u0111\u1ea1p v\u00e0 c\u1ed1 g\u1eafng l\u00e0m ph\u1eb3ng v\u1ea5n \u0111\u1ec1?<\/p>\n\n\n\n

Sai l\u1ea7m trong d\u1eadp: \u0110i\u1ec1u g\u00ec x\u1ea3y ra khi b\u1ea1n \u0111\u1ea1t t\u1ed1i \u0111a t\u1ea3i tr\u1ecdng c\u1ee7a m\u00e1y?<\/h3>\n\n\n\n
\"\u0110i\u1ec1u<\/figure>\n\n\n\n

Gi\u1ea3 s\u1eed b\u1ea1n c\u00f3 th\u00e9p m\u1ec1m d\u00e0y 1\/8\u2033 trong m\u1ed9t khu\u00f4n V d\u00e0y 1\u2033. Trong u\u1ed1n kh\u00f4ng kh\u00ed, \u0111\u1ea7u d\u1eadp kh\u00f4ng bao gi\u1edd ch\u1ea1m \u0111\u00e1y. N\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng khu\u00f4n V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n.<\/p>\n\n\n\n

B\u00e2y gi\u1edd b\u1ea1n tr\u1edf n\u00ean thi\u1ebfu ki\u00ean nh\u1eabn. B\u1ea1n \u0111\u1ea9y ram s\u00e2u h\u01a1n, theo \u0111u\u1ed5i 90\u00b0, ngh\u0129 r\u1eb1ng \u00e1p l\u1ef1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 \u0111\u00f9a gi\u1ee1n v\u1edbi vi\u1ec7c ch\u1ea1m \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n.<\/p>\n\n\n\n

Khi b\u1ea1n ch\u1ea1m \u0111\u00e1y ho\u1eb7c d\u1eadp, b\u1ea1n \u0111ang s\u1eed d\u1ee5ng 3\u20135 l\u1ea7n t\u1ea3i tr\u1ecdng c\u1ee7a u\u1ed1n kh\u00f4ng kh\u00ed. \u0110i\u1ec1u \u0111\u00f3 nghi\u1ec1n n\u00e1t tr\u1ee5c trung t\u00ednh \u2014 l\u1edbp b\u00ean trong kim lo\u1ea1i kh\u00f4ng k\u00e9o d\u00e0i c\u0169ng kh\u00f4ng n\u00e9n l\u1ea1i \u2014 v\u00e0 n\u00f3 th\u1ef1c s\u1ef1 gi\u1ea3m \u0111\u1ed9 h\u1ed3i l\u1ea1i. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c ch\u1ea1m \u0111\u00e1y c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i ch\u00ednh x\u00e1c trong s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

Nh\u01b0ng \u0111\u00e2y l\u00e0 v\u1ea5n \u0111\u1ec1: tr\u1eeb khi g\u00f3c d\u1ee5ng c\u1ee5, \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u v\u00e0 hi\u1ec7u chu\u1ea9n m\u00e1y c\u1ee7a b\u1ea1n ho\u00e0n h\u1ea3o, b\u1ea1n ch\u1ec9 \u0111ang nghi\u1ec1n n\u00e1t c\u00e1c bi\u1ebfn s\u1ed1 l\u1ea1i v\u1edbi nhau m\u1ea1nh h\u01a1n.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 t\u1eebng c\u1ed1 g\u1eafng \u201cs\u1eeda\u201d m\u1ed9t v\u1ea5n \u0111\u1ec1 92\u00b0 tr\u00ean th\u00e9p 11-gauge b\u1eb1ng c\u00e1ch t\u0103ng t\u1ea3i tr\u1ecdng thay v\u00ec \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u. K\u1ebft qu\u1ea3 l\u00e0 c\u00f3 nh\u1eefng d\u1ea5u khu\u00f4n nh\u1eb9 tr\u00ean 200 t\u1ea5m panel th\u1ea9m m\u1ef9 v\u00e0 m\u1ed9t \u0111\u1ea7u d\u1eadp kh\u00f4ng bao gi\u1edd ng\u1ed3i \u0111\u00fang ch\u1ed7 n\u1eefa. Ch\u00fang t\u00f4i kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c. Ch\u00fang t\u00f4i ch\u1ec9 mua l\u1ea1i thi\u1ec7t h\u1ea1i.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n ngh\u0129 m\u00e1y u\u1ed1n l\u00e0 m\u1ed9t c\u00e1i d\u1eadp, b\u1ea1n s\u1ebd lu\u00f4n tr\u1ea3 l\u1eddi s\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t b\u1eb1ng l\u1ef1c.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

N\u1ebfu khu\u00f4n ho\u00e0n to\u00e0n 90 \u0111\u1ed9, t\u1ea1i sao ph\u1ea7n ho\u00e0n thi\u1ec7n l\u1ea1i l\u00e0 93 \u0111\u1ed9?<\/h3>\n\n\n\n
\"T\u1ea1i<\/figure>\n\n\n\n

\u0110\u1eb7t m\u1ed9t \u0111\u1ea7u d\u1eadp 90\u00b0 m\u1edbi tinh l\u00ean m\u1ed9t khu\u00f4n V 90\u00b0. U\u1ed1n th\u00e9p A36 d\u00e0y 1\/8\u2033 \u0111\u1ebfn c\u00e1i m\u00e0 tr\u00f4ng gi\u1ed1ng nh\u01b0 90\u00b0 trong m\u00e1y. K\u00e9o n\u00f3 ra. Ki\u1ec3m tra n\u00f3 b\u1eb1ng m\u1ed9t c\u00e1i th\u01b0\u1edbc vu\u00f4ng.<\/p>\n\n\n\n

N\u00f3 \u0111\u1ecdc 93\u00b0.<\/p>\n\n\n\n

Kh\u00f4ng c\u00f3 g\u00ec di chuy\u1ec3n. Kh\u00f4ng c\u00f3 g\u00ec tr\u01b0\u1ee3t. M\u00e1y \u0111\u00e3 l\u00e0m ch\u00ednh x\u00e1c nh\u1eefng g\u00ec b\u1ea1n \u0111\u00e3 ra l\u1ec7nh.<\/p>\n\n\n\n

Kim lo\u1ea1i \u0111\u00e3 b\u1eadt l\u1ea1i.<\/p>\n\n\n\n

Khi b\u1ea1n u\u1ed1n th\u00e9p, b\u00ean ngo\u00e0i c\u1ee7a ch\u1ed7 u\u1ed1n s\u1ebd k\u00e9o d\u00e0i. B\u00ean trong n\u00e9n l\u1ea1i. Ch\u1ec9 m\u1ed9t ph\u1ea7n c\u1ee7a s\u1ef1 bi\u1ebfn d\u1ea1ng \u0111\u00f3 l\u00e0 v\u0129nh vi\u1ec5n. Ph\u1ea7n c\u00f2n l\u1ea1i l\u00e0 \u0111\u00e0n h\u1ed3i - gi\u1ed1ng nh\u01b0 k\u00e9o m\u1ed9t th\u01b0\u1edbc d\u00e2y ra v\u00e0 \u0111\u1ec3 n\u00f3 b\u1eadt l\u1ea1i. Khi p\u00edt-t\u00f4ng n\u00e2ng l\u00ean, ph\u1ea7n \u0111\u00e0n h\u1ed3i gi\u1ea3i ph\u00f3ng, v\u00e0 g\u00f3c m\u1edf ra.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u1eadt l\u1ea1i. V\u00e0 \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t khuy\u1ebft t\u1eadt. \u0110\u00f3 l\u00e0 v\u1eadt l\u00fd.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t g\u00f3c 90\u00b0 ho\u00e0n thi\u1ec7n, b\u1ea1n c\u00f3 th\u1ec3 ph\u1ea3i u\u1ed1n \u0111\u1ebfn 87\u00b0 trong m\u00e1y. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 nghi\u1ec1n n\u00e1t th\u00e9p \u0111\u1ec3 n\u00f3 ph\u1ee5c t\u00f9ng. \u0110\u00f3 l\u00e0 d\u1ef1 \u0111o\u00e1n c\u00fa ph\u1ea3n \u0111\u00f2n c\u1ee7a n\u00f3.<\/p>\n\n\n\n

L\u1ea7n \u0111\u1ea7u ti\u00ean t\u00f4i h\u1ecdc \u0111i\u1ec1u n\u00e0y, t\u00f4i \u0111\u00e3 li\u00ean t\u1ee5c u\u1ed1n l\u1ea1i c\u00f9ng m\u1ed9t m\u00e9p ba l\u1ea7n c\u1ed1 g\u1eafng \u201cti\u1ebfn g\u1ea7n\u201d \u0111\u1ebfn 90\u00b0. \u0110\u00e3 l\u00e0m c\u1ee9ng \u0111\u01b0\u1eddng u\u1ed1n v\u00e0 n\u1ee9t n\u00f3 \u1edf l\u1ea7n \u0111\u00e1nh th\u1ee9 t\u01b0. To\u00e0n b\u1ed9 l\u00f4 h\u00e0ng \u0111\u00e3 b\u1ecb lo\u1ea1i b\u1ecf v\u00ec t\u00f4i kh\u00f4ng t\u00f4n tr\u1ecdng nh\u1eefng g\u00ec kim lo\u1ea1i \u0111ang l\u00e0m b\u00ean trong.<\/p>\n\n\n\n

Khu\u00f4n kh\u00f4ng sai. Gi\u1ea3 \u0111\u1ecbnh c\u1ee7a t\u00f4i m\u1edbi sai.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

C\u00e1c bi\u1ebfn s\u1ed1 v\u00f4 h\u00ecnh: C\u00e1ch h\u01b0\u1edbng h\u1ea1t v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u h\u1ee3p t\u00e1c ch\u1ed1ng l\u1ea1i g\u00f3c c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n
\"H\u01b0\u1edbng<\/figure>\n\n\n\n

L\u1ea5y hai d\u1ea3i th\u00e9p 1\/8\u2033, c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c g\u00e1n nh\u00e3n A36. M\u1ed9t c\u00e1i \u0111o .125\u2033. C\u00e1i kia l\u00e0 .135\u2033. S\u1ef1 kh\u00e1c bi\u1ec7t 1\/64\u2033 kh\u00f4ng c\u00f3 v\u1ebb nhi\u1ec1u cho \u0111\u1ebfn khi b\u1ea1n u\u1ed1n kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

G\u00f3c u\u1ed1n kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp v\u00e0o V. \u0110\u1ed9 d\u00e0y thay \u0111\u1ed5i c\u00e1ch m\u00e0 v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi vai khu\u00f4n s\u1edbm h\u01a1n v\u00e0 m\u1ee9c \u0111\u1ed9 n\u00f3 ch\u1ed1ng l\u1ea1i vi\u1ec7c k\u00e9o d\u00e0i. M\u1ed9t t\u1ea5m d\u00e0y s\u1ebd b\u1eadt l\u1ea1i kh\u00e1c v\u1edbi m\u1ed9t t\u1ea5m m\u1ecfng, ngay c\u1ea3 khi ch\u01b0\u01a1ng tr\u00ecnh l\u00e0 gi\u1ed1ng nhau.<\/p>\n\n\n\n

B\u00e2y gi\u1edd xoay t\u1ea5m ph\u00f4i 90\u00b0 \u0111\u1ec3 b\u1ea1n \u0111ang u\u1ed1n qua h\u1ea1t cu\u1ed9n thay v\u00ec theo chi\u1ec1u c\u1ee7a n\u00f3. C\u1ea5u tr\u00fac h\u1ea1t b\u00ean trong - nh\u1eefng s\u1ee3i d\u00e0i t\u1eeb nh\u00e0 m\u00e1y - ch\u1ed1ng l\u1ea1i kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o h\u01b0\u1edbng. Qua h\u1ea1t, b\u1ea1n th\u01b0\u1eddng \u00edt g\u1eb7p n\u1ee9t h\u01a1n nh\u01b0ng b\u1eadt l\u1ea1i l\u1ea1i h\u01a1i kh\u00e1c. Theo h\u1ea1t, n\u00f3 c\u00f3 th\u1ec3 m\u1edf ra nhi\u1ec1u h\u01a1n.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 t\u1eebng ch\u1ea1y c\u00e1c b\u1ed9 ph\u1eadn 14-gauge ho\u00e0n h\u1ea3o su\u1ed1t bu\u1ed5i s\u00e1ng. Sau b\u1eefa tr\u01b0a, c\u00e1c g\u00f3c l\u1ec7ch 1\u00b0. C\u00f9ng m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh. C\u00f9ng m\u1ed9t c\u00f4ng c\u1ee5. H\u00f3a ra pallet th\u1ee9 hai \u0111\u1ebfn t\u1eeb m\u1ed9t l\u00f4 nhi\u1ec7t kh\u00e1c, \u0111o trung b\u00ecnh d\u00e0y h\u01a1n .008\u2033. Ch\u00fang t\u00f4i \u0111\u00e3 theo d\u00f5i m\u00e1y trong m\u1ed9t gi\u1edd tr\u01b0\u1edbc khi \u0111o \u0111\u1ed9 d\u00e0y t\u1ea5m. Gi\u1edd \u0111\u00f3 t\u1ed1n h\u01a1n c\u1ea3 v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

U\u1ed1n kh\u00f4ng kh\u00ed kh\u00f4ng b\u1ecf qua nh\u1eefng bi\u1ebfn s\u1ed1 n\u00e0y. N\u00f3 bu\u1ed9c b\u1ea1n ph\u1ea3i nh\u00ecn th\u1ea5y ch\u00fang.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n ng\u1eebng c\u1ed1 g\u1eafng \u00e1p \u0111\u1ea3o th\u00e9p v\u00e0 b\u1eaft \u0111\u1ea7u \u0111o \u0111\u1ed9 d\u00e0y \u0111\u1ebfn g\u1ea7n nh\u1ea5t l\u00e0 .001\u2033, ki\u1ec3m tra h\u01b0\u1edbng h\u1ea1t tr\u01b0\u1edbc khi t\u1ea3i ph\u00f4i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u u\u1ed1n thay v\u00ec tr\u1ecdng l\u01b0\u1ee3ng, m\u00e1y u\u1ed1n s\u1ebd kh\u00f4ng c\u00f2n c\u1ea3m th\u1ea5y ng\u1eabu nhi\u00ean.<\/p>\n\n\n\n

N\u00f3 b\u1eaft \u0111\u1ea7u c\u1ea3m th\u1ea5y c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

Thu\u1ebf B\u1eadt L\u1ea1i: \u0110i\u1ec1u G\u00ec Th\u1ef1c S\u1ef1 X\u1ea3y Ra B\u00ean Trong Kim Lo\u1ea1i<\/h2>\n\n\n\n

B\u1ea1n u\u1ed1n m\u1ed9t d\u1ea3i A36 1\/8\u2033 \u0111\u1ebfn 87\u00b0 trong m\u00e1y. \u0110\u1ed3ng h\u1ed3 \u0111o cho bi\u1ebft 87.2\u00b0. B\u1ea1n \u0111\u1ec3 p\u00edt-t\u00f4ng l\u00ean, k\u00e9o ph\u1ea7n ra, \u0111\u1eb7t m\u1ed9t th\u01b0\u1edbc vu\u00f4ng l\u00ean \u0111\u00f3.<\/p>\n\n\n\n

N\u00f3 \u0111\u1ecdc 90\u00b0 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

Kh\u00f4ng c\u00f3 g\u00ec k\u1ef3 di\u1ec7u x\u1ea3y ra trong n\u1eeda gi\u00e2y \u0111\u00f3. Kh\u00f4ng c\u00f3 b\u00f3ng ma n\u00e0o trong h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c. Nh\u1eefng g\u00ec \u0111\u00e3 x\u1ea3y ra l\u00e0 ph\u1ee5c h\u1ed3i c\u0103ng th\u1eb3ng - ph\u1ea7n \u0111\u00e0n h\u1ed3i c\u1ee7a ch\u1ed7 u\u1ed1n bu\u00f4ng ra. V\u00e0 n\u00f3 \u0111\u00e3 b\u1eaft \u0111\u1ea7u x\u1ea3y ra tr\u01b0\u1edbc khi b\u1ea1n th\u1ea3 b\u00e0n \u0111\u1ea1p.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 ph\u1ea7n m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi m\u1edbi v\u00e0o ngh\u1ec1 b\u1ecf l\u1ee1: ch\u1ed7 u\u1ed1n kh\u00f4ng ph\u1ea3i l\u00e0 \u201ct\u1ea1m th\u1eddi\u201d hay \u201cv\u0129nh vi\u1ec5n.\u201d N\u00f3 l\u00e0 c\u1ea3 hai c\u00f9ng m\u1ed9t l\u00fac, x\u1ebfp ch\u1ed3ng qua \u0111\u1ed9 d\u00e0y. L\u1edbp ngo\u00e0i \u0111ang k\u00e9o d\u00e0i qua \u0111i\u1ec3m gi\u1edbi h\u1ea1n. L\u1edbp trong \u0111ang n\u00e9n l\u1ea1i. \u1ede \u0111\u00e2u \u0111\u00f3 gi\u1eefa ch\u00fang l\u00e0 m\u1ed9t l\u1edbp m\u1ecfng ch\u01b0a \u0111\u1ea1t \u0111\u1ebfn \u0111i\u1ec3m gi\u1edbi h\u1ea1n. L\u1edbp \u0111\u00f3 \u0111\u00e3 c\u1ed1 g\u1eafng k\u00e9o ch\u1ed7 u\u1ed1n tr\u1edf l\u1ea1i m\u1edf ra trong khi b\u1ea1n v\u1eabn \u0111ang \u0111\u00e8 xu\u1ed1ng.<\/p>\n\n\n\n

S\u1ef1 k\u00e9o l\u1ea1i \u0111\u00f3 l\u00e0 thu\u1ebf b\u1ea1n ph\u1ea3i tr\u1ea3 cho vi\u1ec7c u\u1ed1n. B\u1ea1n kh\u00f4ng lo\u1ea1i b\u1ecf n\u00f3. B\u1ea1n l\u1eadp ng\u00e2n s\u00e1ch cho n\u00f3.<\/p>\n\n\n\n

V\u1eady th\u00ec ch\u00ednh x\u00e1c v\u00e0o th\u1eddi \u0111i\u1ec3m n\u00e0o kim lo\u1ea1i ng\u1eebng th\u01b0\u01a1ng l\u01b0\u1ee3ng v\u00e0 b\u1eaft \u0111\u1ea7u tu\u00e2n theo?<\/p>\n\n\n\n

Bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i so v\u1edbi bi\u1ebfn d\u1ea1ng d\u1ebbo: V\u00e0o th\u1eddi \u0111i\u1ec3m n\u00e0o ch\u00ednh x\u00e1c th\u00ec s\u1ef1 u\u1ed1n cong tr\u1edf n\u00ean v\u0129nh vi\u1ec5n?<\/h3>\n\n\n\n

L\u1ea5y c\u00f9ng m\u1ed9t d\u1ea3i 1\/8\u2033. Th\u00e9p nh\u1eb9 nh\u01b0 A36 ch\u1ecbu l\u1ef1c kho\u1ea3ng 36,000 psi. D\u01b0\u1edbi m\u1ee9c c\u0103ng th\u1eb3ng \u0111\u00f3, n\u00f3 ho\u1ea1t \u0111\u1ed9ng theo c\u00e1ch \u0111\u00e0n h\u1ed3i \u2014 c\u00f3 ngh\u0129a l\u00e0 bi\u1ebfn d\u1ea1ng t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi c\u0103ng th\u1eb3ng, v\u00e0 khi b\u1ea1n gi\u1ea3i ph\u00f3ng n\u00f3, n\u00f3 tr\u1edf l\u1ea1i h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u. Gi\u1ed1ng nh\u01b0 m\u1ed9t chi\u1ebfc l\u00f2 xo. \u0110i qua \u0111i\u1ec3m ch\u1ecbu l\u1ef1c, c\u1ea5u tr\u00fac tinh th\u1ec3 tr\u01b0\u1ee3t. S\u1ef1 tr\u01b0\u1ee3t \u0111\u00f3 l\u00e0 bi\u1ebfn d\u1ea1ng d\u1ebbo. Ph\u1ea7n \u0111\u00f3 s\u1ebd \u1edf l\u1ea1i.<\/p>\n\n\n\n

Khi b\u1ea1n b\u1eaft \u0111\u1ea7u u\u1ed1n, to\u00e0n b\u1ed9 \u0111\u1ed9 d\u00e0y l\u00e0 \u0111\u00e0n h\u1ed3i. Khi m\u0169i \u0111\u1ed9t \u0111i s\u00e2u v\u00e0o V, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i \u2014 xa nh\u1ea5t so v\u1edbi tr\u1ee5c trung t\u00ednh \u2014 ch\u1ecbu l\u1ef1c c\u0103ng cao nh\u1ea5t. Ch\u00fang \u0111\u1ea1t \u0111\u1ebfn \u0111i\u1ec3m ch\u1ecbu l\u1ef1c tr\u01b0\u1edbc ti\u00ean. Khu v\u1ef1c d\u1ebbo b\u1eaft \u0111\u1ea7u t\u1eeb b\u00ean ngo\u00e0i v\u00e0 l\u00e0m vi\u1ec7c v\u00e0o trong khi \u0111\u1ed9 cong t\u0103ng l\u00ean.<\/p>\n\n\n\n

S\u1ef1 u\u1ed1n cong tr\u1edf n\u00ean \u201cv\u0129nh vi\u1ec5n\u201d v\u00e0o th\u1eddi \u0111i\u1ec3m b\u1ea5t k\u1ef3 s\u1ee3i n\u00e0o v\u01b0\u1ee3t qua \u0111i\u1ec3m ch\u1ecbu l\u1ef1c. Nh\u01b0ng n\u00f3 tr\u1edf th\u00e0nh v\u0129nh vi\u1ec5n h\u1eefu \u00edch<\/em> ch\u1ec9 khi \u0111\u1ee7 \u0111\u1ed9 d\u00e0y \u0111\u00e3 ch\u1ecbu l\u1ef1c \u0111\u1ebfn m\u1ee9c l\u00f5i \u0111\u00e0n h\u1ed3i c\u00f2n l\u1ea1i kh\u00f4ng th\u1ec3 k\u00e9o n\u00f3 tr\u1edf l\u1ea1i ph\u1eb3ng ho\u00e0n to\u00e0n.<\/p>\n\n\n\n

H\u00e3y h\u00ecnh dung m\u1eb7t c\u1eaft ngang: 1\/32\u2033 b\u00ean ngo\u00e0i \u0111\u00e3 ch\u1ecbu l\u1ef1c, 1\/32\u2033 b\u00ean trong \u0111\u00e3 ch\u1ecbu l\u1ef1c n\u00e9n, v\u00e0 m\u1ed9t l\u00f5i \u0111\u00e0n h\u1ed3i m\u1ecfng \u1edf gi\u1eefa. Khi b\u1ea1n gi\u1ea3i ph\u00f3ng t\u1ea3i tr\u1ecdng, l\u00f5i \u0111\u00e0n h\u1ed3i \u0111\u00f3 gi\u1ea3i ph\u00f3ng v\u00e0 ph\u00e2n ph\u1ed1i l\u1ea1i c\u0103ng th\u1eb3ng. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao g\u00f3c m\u1edf ra.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 b\u1ecf m\u1ed9t m\u1ebb th\u00e9p kh\u00f4ng g\u1ec9 3\/32\u2033 m\u1ed9t l\u1ea7n v\u00ec t\u00f4i c\u1ee9 nh\u1ea5n b\u00e0n \u0111\u1ea1p, c\u1ed1 g\u1eafng \u201cti\u1ebfn l\u1ea1i\u201d 90\u00b0 trong b\u1ed1n c\u00fa nh\u1eb9 thay v\u00ec m\u1ed9t c\u00fa u\u1ed1n ki\u1ec3m so\u00e1t. M\u1ed7i c\u00fa \u0111\u00e1nh th\u00eam bi\u1ebfn d\u1ea1ng d\u1ebbo \u1edf b\u1ec1 m\u1eb7t nh\u01b0ng \u0111\u1ec3 l\u1ea1i m\u1ed9t l\u00f5i \u0111\u00e0n h\u1ed3i c\u1ee9ng \u0111\u1ea7u. \u0110\u1ebfn c\u00fa th\u1ee9 t\u01b0, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i \u0111\u00e3 c\u1ee9ng l\u1ea1i v\u00e0 gi\u00f2n. Nh\u1eefng v\u1ebft n\u1ee9t nh\u1ecf d\u1ecdc theo 50 b\u1ed9 ph\u1eadn. C\u00f4ng vi\u1ec7c \u0111\u00f3 \u0111\u00e3 tr\u1ea3 cho b\u00e0i h\u1ecdc c\u1ee7a t\u00f4i.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n mu\u1ed1n th\u1ea5y \u0111i\u1ec1u n\u00e0y b\u1eb1ng ch\u00ednh m\u1eaft m\u00ecnh, h\u00e3y u\u1ed1n m\u1ed9t phi\u1ebfu \u0111\u1ebfn 45\u00b0, gi\u1ea3i ph\u00f3ng n\u00f3, sau \u0111\u00f3 u\u1ed1n l\u1ea1i m\u1ed9t ch\u00fat s\u00e2u h\u01a1n v\u00e0 xem n\u00f3 b\u1eadt l\u1ea1i \u00edt h\u01a1n bao nhi\u00eau l\u1ea7n th\u1ee9 hai. B\u1ea1n \u0111\u00e3 l\u00e0m d\u00e0y th\u00eam khu v\u1ef1c d\u1ebbo. L\u00f5i \u0111\u00e0n h\u1ed3i \u0111\u00e3 m\u1ecfng h\u01a1n.<\/p>\n\n\n\n

C\u1eaft m\u1ed9t d\u1ea3i 2\u2033 \u00d7 6\u2033 v\u00e0 th\u1eed nghi\u1ec7m. \u0110o tr\u01b0\u1edbc v\u00e0 sau m\u1ed7i c\u00fa \u0111\u00e1nh. Ki\u1ec3m tra tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

B\u00e2y gi\u1edd t\u1ea1i sao th\u00e9p 1\/4\u2033 c\u1ea3m th\u1ea5y trung th\u1ef1c h\u01a1n so v\u1edbi nh\u00f4m .050\u2033, ngay c\u1ea3 khi c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u1eaft s\u1ea1ch v\u00e0 u\u1ed1n trong c\u00f9ng m\u1ed9t m\u00e1y?<\/p>\n\n\n\n

T\u1ea1i sao th\u00e9p d\u00e0y \u00edt lie h\u01a1n nh\u00f4m m\u1ecfng<\/h3>\n\n\n\n

Ch\u1ea1y th\u00e9p A36 1\/4\u2033 trong m\u1ed9t khu\u00f4n V 2\u2033. U\u1ed1n qu\u00e1 m\u1ee9c \u0111\u1ebfn 88\u00b0 trong m\u00e1y. N\u00f3 c\u00f3 th\u1ec3 b\u1eadt l\u1ea1i 1\u00b0.<\/p>\n\n\n\n

B\u00e2y gi\u1edd ch\u1ea1y nh\u00f4m 5052 .050\u2033 trong m\u1ed9t khu\u00f4n V 1\/2\u2033. U\u1ed1n qu\u00e1 m\u1ee9c \u0111\u1ebfn 85\u00b0. N\u00f3 c\u00f3 th\u1ec3 b\u1eadt l\u1ea1i 3\u00b0 ho\u1eb7c h\u01a1n.<\/p>\n\n\n\n

Hai \u0111i\u1ec1u \u0111ang x\u1ea3y ra.<\/p>\n\n\n\n

\u0110\u1ea7u ti\u00ean, \u0111\u1ed9 d\u00e0y. S\u1ef1 b\u1eadt l\u1ea1i t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u1ef7 l\u1ec7 gi\u1eefa bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i v\u00e0 t\u1ed5ng bi\u1ebfn d\u1ea1ng. V\u1eadt li\u1ec7u d\u00e0y h\u01a1n, u\u1ed1n trong m\u1ed9t khu\u00f4n V c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p (kho\u1ea3ng 8\u00d7 \u0111\u1ed9 d\u00e0y cho th\u00e9p l\u00e0m \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u), ph\u00e1t tri\u1ec3n m\u1ed9t khu v\u1ef1c d\u1ebbo l\u1edbn h\u01a1n t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi \u0111\u1ed9 d\u00e0y c\u1ee7a n\u00f3. Nhi\u1ec1u ph\u1ea7n c\u1ee7a m\u1eb7t c\u1eaft \u0111\u00e3 ch\u1ecbu l\u1ef1c. L\u00f5i \u0111\u00e0n h\u1ed3i l\u00e0 m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ecf h\u01a1n c\u1ee7a to\u00e0n b\u1ed9, v\u00ec v\u1eady n\u00f3 c\u00f3 \u00edt \u0111\u00f2n b\u1ea9y h\u01a1n \u0111\u1ec3 k\u00e9o g\u00f3c m\u1edf ra.<\/p>\n\n\n\n

T\u1ea5m m\u1ecfng? Khu v\u1ef1c d\u1ebbo n\u00f4ng. Ph\u1ea7n \u0111\u00e0n h\u1ed3i chi\u1ebfm \u01b0u th\u1ebf. N\u00f3 l\u1eeba b\u1ea1n.<\/p>\n\n\n\n

Th\u1ee9 hai, m\u00f4 \u0111un v\u00e0 l\u00e0m c\u1ee9ng do c\u00f4ng vi\u1ec7c. Th\u00e9p c\u00f3 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i kho\u1ea3ng 29 tri\u1ec7u psi. Nh\u00f4m g\u1ea7n 10 tri\u1ec7u psi. M\u00f4 \u0111un th\u1ea5p h\u01a1n c\u00f3 ngh\u0129a l\u00e0 v\u1edbi c\u00f9ng m\u1ed9t l\u1ef1c c\u0103ng, nh\u00f4m bi\u1ebfn d\u1ea1ng nhi\u1ec1u h\u01a1n theo c\u00e1ch \u0111\u00e0n h\u1ed3i. Nhi\u1ec1u bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef. Nhi\u1ec1u h\u01a1n \u0111\u1ec3 ph\u1ee5c h\u1ed3i khi gi\u1ea3i ph\u00f3ng.<\/p>\n\n\n\n

V\u00e0 nh\u00f4m l\u00e0m c\u1ee9ng nhanh. T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t c\u00f4ng vi\u1ec7c m\u00e0 ch\u00fang t\u00f4i \u0111\u00e3 u\u1ed1n c\u00e1c gi\u00e1 \u0111\u1ee1 5052 .080\u2033, ki\u1ec3m tra ch\u00fang, ph\u00e1t hi\u1ec7n ra r\u1eb1ng ch\u00fang t\u00f4i m\u1edf 2\u00b0 v\u00e0 c\u1ed1 g\u1eafng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch u\u1ed1n l\u1ea1i. Sau hai c\u00fa \u0111\u00e1nh, \u0111\u01b0\u1eddng u\u1ed1n c\u1ee9ng l\u1ea1i \u0111\u1ebfn m\u1ee9c c\u00fa \u0111i\u1ec1u ch\u1ec9nh th\u1ee9 ba h\u1ea7u nh\u01b0 kh\u00f4ng di chuy\u1ec3n \u2014 v\u00e0 c\u00fa th\u1ee9 t\u01b0 \u0111\u00e3 n\u1ee9t. Ch\u00fang t\u00f4i \u0111\u00e3 ph\u1ea3i d\u1eebng s\u1ea3n xu\u1ea5t v\u00e0 \u1ee7 m\u1ed9t m\u1ebb trong l\u00f2 ch\u1ec9 \u0111\u1ec3 ho\u00e0n th\u00e0nh \u0111\u01a1n h\u00e0ng. Th\u00e9p s\u1ebd ch\u1ecbu \u0111\u1ef1ng chu\u1ed7i \u0111\u00f3 t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao th\u00e9p d\u00e0y \u201c\u00edt n\u1eb1m h\u01a1n.\u201d Kh\u00f4ng ph\u1ea3i v\u00ec n\u00f3 ngoan ngo\u00e3n. M\u00e0 v\u00ec t\u1ef7 l\u1ec7, nhi\u1ec1u ph\u1ea7n c\u1ee7a n\u00f3 \u0111\u00e3 v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n, v\u00e0 tr\u00ed nh\u1edb \u0111\u00e0n h\u1ed3i c\u1ee7a n\u00f3 kh\u00f4ng chi\u1ebfm \u01b0u th\u1ebf nh\u01b0 v\u1eady.<\/p>\n\n\n\n

H\u00e3y \u0111o t\u1ea5m c\u1ee7a b\u1ea1n \u0111\u1ebfn g\u1ea7n nh\u1ea5t l\u00e0 .001\u2033. Ki\u1ec3m tra h\u1ee3p kim v\u00e0 \u0111\u1ed9 b\u1ec1n tr\u01b0\u1edbc khi b\u1ea1n gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng c\u00f9ng m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh s\u1ebd ho\u1ea1t \u0111\u1ed9ng. B\u1ebb m\u1ed9t m\u1eabu t\u1eeb m\u1ed7i l\u00f4 v\u1eadt li\u1ec7u v\u00e0 ghi l\u1ea1i \u0111\u1ed9 h\u1ed3i ph\u1ee5c. Th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

V\u1eady th\u00ec l\u1ef1c n\u00e0y th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nh\u01b0 th\u1ebf n\u00e0o ngay t\u1eeb \u0111\u1ea7u?<\/p>\n\n\n\n

M\u00f4 h\u00ecnh t\u1ea3i ba \u0111i\u1ec3m m\u00e0 h\u1ea7u h\u1ebft ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u kh\u00f4ng bao gi\u1edd th\u1ea5y<\/h3>\n\n\n\n

Nh\u00ecn v\u00e0o thi\u1ebft l\u1eadp: \u0111\u1ea7u \u0111\u1ea5m \u1edf tr\u00ean c\u00f9ng, vai khu\u00f4n b\u00ean tr\u00e1i v\u00e0 b\u00ean ph\u1ea3i. T\u1ea5m kim lo\u1ea1i tr\u1ea3i qua h\u00ecnh ch\u1eef V nh\u01b0 m\u1ed9t c\u00e2y c\u1ea7u. Khi \u0111\u1ea7u \u0111\u1ea5m h\u1ea1 xu\u1ed1ng, b\u1ea1n kh\u00f4ng nghi\u1ec1n n\u00e1t to\u00e0n b\u1ed9 m\u00e9p. B\u1ea1n \u0111ang t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng u\u1ed1n ba \u0111i\u1ec3m \u2014 hai \u0111i\u1ec3m h\u1ed7 tr\u1ee3 \u1edf vai khu\u00f4n v\u00e0 m\u1ed9t t\u1ea3i tr\u1ecdng t\u1eadp trung t\u1ea1i \u0111\u1ea7u \u0111\u1ea5m.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 m\u00f4 men u\u1ed1n t\u1ed1i \u0111a \u2014 \u1ee9ng su\u1ea5t n\u1ed9i b\u1ed9 cao nh\u1ea5t \u2014 n\u1eb1m ngay d\u01b0\u1edbi \u0111\u1ea7u \u0111\u1ea5m. \u1ee8ng su\u1ea5t gi\u1ea3m d\u1ea7n v\u1ec1 ph\u00eda vai khu\u00f4n. N\u00f3 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t.<\/p>\n\n\n\n

Trong qu\u00e1 tr\u00ecnh t\u1ea3i, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i d\u01b0\u1edbi \u0111\u1ea7u \u0111\u1ea5m s\u1ebd nh\u01b0\u1eddng ch\u1ed7 tr\u01b0\u1edbc. Khi b\u1ea1n \u0111i s\u00e2u h\u01a1n, v\u00f9ng \u0111\u00e3 nh\u01b0\u1eddng ch\u1ed7 \u0111\u00f3 lan r\u1ed9ng. Khi b\u1ea1n th\u1ea3 ra, vi\u1ec7c gi\u1ea3m t\u1ea3i c\u0169ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t. \u0110\u1ed9 bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i ph\u1ee5c h\u1ed3i, nh\u01b0ng v\u00ec bi\u1ebfn d\u1ea1ng d\u1ebbo kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t qua b\u00e1n k\u00ednh, \u1ee9ng su\u1ea5t ph\u00e2n ph\u1ed1i l\u1ea1i. Kim lo\u1ea1i kh\u00f4ng ch\u1ec9 \u201cnh\u00fan.\u201d N\u00f3 c\u00e2n b\u1eb1ng l\u1ea1i b\u00ean trong.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao u\u1ed1n kh\u00f4ng kh\u00ed ho\u1ea1t \u0111\u1ed9ng. B\u1ea1n \u0111ang ki\u1ec3m so\u00e1t \u0111\u1ed9 cong b\u1eb1ng \u0111\u1ed9 s\u00e2u trong m\u1ed9t h\u1ec7 th\u1ed1ng ba \u0111i\u1ec3m c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n. N\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng h\u00ecnh ch\u1eef V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n.<\/p>\n\n\n\n

Khi b\u1ea1n ch\u1ea1m \u0111\u00e1y ho\u1eb7c d\u1eadp, b\u1ea1n thay \u0111\u1ed5i m\u00f4 h\u00ecnh. B\u00e2y gi\u1edd t\u1ea5m kim lo\u1ea1i ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. B\u1ea1n kh\u00f4ng c\u00f2n \u1edf trong u\u1ed1n ba \u0111i\u1ec3m thu\u1ea7n t\u00fay. B\u1ea1n \u0111ang n\u00e9n to\u00e0n b\u1ed9 v\u00f9ng u\u1ed1n, v\u01b0\u1ee3t qua kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i. \u0110\u1ed9 h\u1ed3i ph\u1ee5c gi\u1ea3m v\u00ec b\u1ea1n \u0111\u00e3 \u0111\u1ea9y g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 \u0111\u1ed9 d\u00e0y qua gi\u1edbi h\u1ea1n. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao d\u1eadp c\u00f3 th\u1ec3 g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf thu\u1ebf h\u1ed3i ph\u1ee5c \u2014 v\u1edbi chi ph\u00ed t\u1eeb 3\u00d7 \u0111\u1ebfn 5\u00d7 tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c khu\u00f4n ch\u1eb7t ch\u1ebd h\u01a1n.<\/p>\n\n\n\n

V\u1eadt l\u00fd kh\u00e1c. H\u00f3a \u0111\u01a1n kh\u00e1c.<\/p>\n\n\n\n

Thi\u1ebft l\u1eadp m\u1ed9t b\u00e0i ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n: u\u1ed1n m\u1ed9t m\u1eabu r\u1ed9ng 3\u2033 trong kh\u00f4ng kh\u00ed, ghi l\u1ea1i g\u00f3c. Sau \u0111\u00f3 ch\u1ea1m \u0111\u00e1y c\u00f9ng \u0111\u1ed9 d\u00e0y trong c\u00f9ng m\u1ed9t khu\u00f4n v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng cao h\u01a1n v\u00e0 so s\u00e1nh \u0111\u1ed9 h\u1ed3i ph\u1ee5c. C\u1ea3m nh\u1eadn s\u1ef1 kh\u00e1c bi\u1ec7t trong \u00e1p l\u1ef1c b\u00e0n \u0111\u1ea1p. \u0110o s\u1ef1 thay \u0111\u1ed5i g\u00f3c sau khi th\u1ea3 ra. Th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

Khi b\u1ea1n th\u1ea5y u\u1ed1n nh\u01b0 m\u1ed9t t\u1ea3i ba \u0111i\u1ec3m v\u1edbi m\u1ed9t m\u1eb7t c\u1eaft \u0111\u00e0n h\u1ed3i-d\u1ebbo c\u00f3 l\u1edbp, \u0111\u1ed9 h\u1ed3i ph\u1ee5c kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t s\u1ef1 x\u00fac ph\u1ea1m.<\/p>\n\n\n\n

N\u00f3 tr\u1edf th\u00e0nh m\u1ed9t con s\u1ed1 m\u00e0 b\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch cho.<\/p>\n\n\n\n

V\u00e0 \u0111\u00f3 l\u00e0 n\u01a1i m\u00e0 u\u1ed1n kh\u00f4ng kh\u00ed kh\u00f4ng c\u00f2n gi\u1ed1ng nh\u01b0 m\u1ed9t s\u1ef1 th\u1ecfa hi\u1ec7p \u2014 m\u00e0 b\u1eaft \u0111\u1ea7u gi\u1ed1ng nh\u01b0 m\u1ed9t s\u1ef1 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

L\u1ed7 h\u1ed5ng U\u1ed1n Kh\u00f4ng Kh\u00ed: \u00cdt L\u1ef1c, Nhi\u1ec1u Ki\u1ec3m So\u00e1t<\/h2>\n\n\n\n

B\u1ea1n c\u00f3 1\/8\u2033 A36 trong m\u1ed9t thi\u1ebft l\u1eadp \u0111\u1ed9 d\u00e0y 8\u00d7 \u2014 \u0111\u00f3 l\u00e0 m\u1ed9t khu\u00f4n h\u00ecnh ch\u1eef V 1\u2033. B\u1ea1n c\u1ea7n ho\u00e0n thi\u1ec7n 90\u00b0. Chi\u1ebfc \u0111\u1ea7u ti\u00ean \u0111\u1ecdc 90\u00b0. Chi\u1ebfc th\u1ee9 hai \u0111\u1ecdc 91.5\u00b0. Chi\u1ebfc th\u1ee9 ba 89\u00b0. C\u00f9ng m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh. C\u00f9ng m\u1ed9t m\u00e1y. V\u1eady l\u00e0m th\u1ebf n\u00e0o b\u1ea1n d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c \u0111\u1ed9 u\u1ed1n qu\u00e1 m\u1ee9c thay v\u00ec \u0111u\u1ed5i theo n\u00f3 t\u1eeb ph\u1ea7n n\u00e0y sang ph\u1ea7n kh\u00e1c?<\/p>\n\n\n\n

B\u1ea1n b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ch\u1ea5p nh\u1eadn \u0111i\u1ec1u n\u00e0y: trong u\u1ed1n kh\u00f4ng kh\u00ed, g\u00f3c khu\u00f4n g\u1ea7n nh\u01b0 kh\u00f4ng quan tr\u1ecdng. \u0110\u1ea7u \u0111\u1ea5m kh\u00f4ng bao gi\u1edd \u0111\u1ea9y t\u1ea5m kim lo\u1ea1i v\u00e0o ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. B\u1ea1n \u0111ang n\u1ed5i gi\u1eefa c\u00e1c vai. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 ki\u1ec3m so\u00e1t c\u1ee9ng duy nh\u1ea5t b\u1ea1n c\u00f3 l\u00e0 \u0111\u1ed9 s\u00e2u \u2014 \u0111\u1ed9 s\u00e2u m\u00e0 \u0111\u1ea7u \u0111\u1ea5m x\u00e2m nh\u1eadp v\u00e0o h\u00ecnh ch\u1eef V. N\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng h\u00ecnh ch\u1eef V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u1ed7 h\u1ed5ng.<\/p>\n\n\n\n

N\u1ebfu \u0111\u1ed9 s\u00e2u ki\u1ec3m so\u00e1t g\u00f3c, th\u00ec g\u00f3c l\u00e0 m\u1ed9t h\u00e0m c\u1ee7a \u0111\u1ed9 x\u00e2m nh\u1eadp c\u1ee7a \u0111\u1ea7u \u0111\u1ea5m tr\u1eeb \u0111\u1ed9 h\u1ed3i ph\u1ee5c. V\u00e0 \u0111\u1ed9 h\u1ed3i ph\u1ee5c l\u00e0 m\u1ed9t h\u00e0m c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y, h\u01b0\u1edbng h\u1ea1t v\u00e0 b\u00e1n k\u00ednh b\u00ean trong. V\u1eady c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 tr\u1edf th\u00e0nh: l\u00e0m th\u1ebf n\u00e0o m\u00e0 h\u00ecnh h\u1ecdc n\u1ed5i \u0111\u00f3 chuy\u1ec3n th\u00e0nh m\u1ed9t con s\u1ed1 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh?<\/p>\n\n\n\n

Ch\u1edd \u0111\u00e3, n\u1ebfu \u0111\u1ea7u \u0111\u1ea5m d\u1eebng gi\u1eefa kh\u00f4ng trung, th\u00ec c\u00e1i g\u00ec th\u1ef1c s\u1ef1 quy\u1ebft \u0111\u1ecbnh g\u00f3c cu\u1ed1i c\u00f9ng?<\/h3>\n\n\n\n

H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t khu\u00f4n V 90\u00b0. B\u1ea1n h\u1ea1 \u0111\u1ea7u \u0111\u1ea5m xu\u1ed1ng cho \u0111\u1ebfn khi ph\u1ea7n \u0111o \u0111\u01b0\u1ee3c 88\u00b0 d\u01b0\u1edbi t\u1ea3i. B\u1ea1n th\u1ea3 ra. N\u00f3 m\u1edf ra 90\u00b0. Hai \u0111\u1ed9 \u0111\u00f3 l\u00e0 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i.<\/p>\n\n\n\n

B\u00e2y gi\u1edd kh\u00f4ng thay \u0111\u1ed5i g\u00ec ngo\u1ea1i tr\u1eeb \u0111\u1ed9 s\u00e2u. \u0110i s\u00e2u th\u00eam 0.010\u2033. D\u01b0\u1edbi t\u1ea3i, n\u00f3 \u0111\u1ecdc 86.5\u00b0. Th\u1ea3 ra. B\u00e2y gi\u1edd n\u00f3 b\u1eadt l\u00ean 89\u00b0.<\/p>\n\n\n\n

\u0110i\u1ec1u g\u00ec \u0111\u00e3 thay \u0111\u1ed5i? Kh\u00f4ng ph\u1ea3i g\u00f3c khu\u00f4n. Kh\u00f4ng ph\u1ea3i g\u00f3c \u0111\u1ea7u \u0111\u1ea5m. Ch\u1ec9 c\u00f3 \u0111\u1ed9 th\u00e2m nh\u1eadp.<\/p>\n\n\n\n

Trong u\u1ed1n kh\u00f4ng kh\u00ed, b\u00e1n k\u00ednh b\u00ean trong h\u00ecnh th\u00e0nh t\u1ef1 nhi\u00ean kho\u1ea3ng 16% c\u1ee7a khe V cho th\u00e9p nh\u1eb9 trong m\u1ed9t thi\u1ebft l\u1eadp 8\u00d7 \u0111\u00fang c\u00e1ch. V\u00ec v\u1eady, trong m\u1ed9t khe V 1\u2033, b\u1ea1n \u0111ang c\u00f3 kho\u1ea3ng b\u00e1n k\u00ednh b\u00ean trong 0.160\u2033 cho d\u00f9 b\u1ea1n th\u00edch hay kh\u00f4ng. B\u00e1n k\u00ednh \u0111\u00f3 x\u00e1c \u0111\u1ecbnh bao nhi\u00eau \u0111\u1ed9 d\u00e0y b\u1ecb bi\u1ebfn d\u1ea1ng. \u0110\u1ed9 s\u00e2u bi\u1ebfn d\u1ea1ng \u0111\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u00e0y l\u00f5i \u0111\u00e0n h\u1ed3i. L\u00f5i \u0111\u00e0n h\u1ed3i \u0111\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 ph\u1ee5c h\u1ed3i.<\/p>\n\n\n\n

V\u00ec v\u1eady, n\u00fam \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp, \u0111i\u1ec1u n\u00e0y thay \u0111\u1ed5i g\u00f3c u\u1ed1n, \u0111i\u1ec1u n\u00e0y thay \u0111\u1ed5i bao nhi\u00eau ph\u1ea7n c\u1ee7a m\u1eb7t c\u1eaft v\u01b0\u1ee3t qua bi\u1ebfn d\u1ea1ng.<\/p>\n\n\n\n

Nhi\u1ec1u n\u0103m tr\u01b0\u1edbc, m\u1ed9t c\u1eadu b\u00e9 trong ca th\u1ee9 hai \u0111\u00e3 thay m\u1ed9t khe V 1\u2033 b\u1eb1ng m\u1ed9t khe V 3\/4\u2033 v\u00ec \u201cn\u00f3 tr\u00f4ng g\u1ea7n \u0111\u1ee7.\u201d B\u00e1n k\u00ednh b\u00ean trong gi\u1ea3m. Khu v\u1ef1c nh\u1ef1a t\u0103ng l\u00ean. \u0110\u1ed9 ph\u1ee5c h\u1ed3i gi\u1ea3m g\u1ea7n 1\u00b0. Anh ta kh\u00f4ng thay \u0111\u1ed5i ch\u01b0\u01a1ng tr\u00ecnh. Ch\u00fang t\u00f4i \u0111\u00e3 lo\u1ea1i b\u1ecf 60 gi\u00e1 \u0111\u1ee1 tr\u01b0\u1edbc khi nh\u1eadn ra khu\u00f4n \u0111\u00e3 sai. Chi\u1ec1u r\u1ed9ng khu\u00f4n \u0111\u00e3 thay \u0111\u1ed5i b\u00e1n k\u00ednh. B\u00e1n k\u00ednh \u0111\u00e3 thay \u0111\u1ed5i \u0111\u1ed9 ph\u1ee5c h\u1ed3i. B\u00e0i h\u1ecdc t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang c\u00e1ch:<\/p>\n\n\n\n

    \n
  1. \u0110o \u0111\u1ed9 d\u00e0y t\u1ea5m \u0111\u1ebfn g\u1ea7n nh\u1ea5t 0.001\u2033.<\/li>\n\n\n\n
  2. X\u00e1c nh\u1eadn h\u1ee3p kim v\u00e0 h\u01b0\u1edbng h\u1ea1t.<\/li>\n\n\n\n
  3. Ch\u1ea1y m\u1ed9t m\u1eabu v\u00e0 c\u1ed1 \u00fd u\u1ed1n qu\u00e1 2\u00b0 so v\u1edbi m\u1ee5c ti\u00eau.<\/li>\n\n\n\n
  4. \u0110o \u0111\u1ed9 ph\u1ee5c h\u1ed3i sau khi th\u1ea3 ho\u00e0n to\u00e0n.<\/li>\n\n\n\n
  5. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u theo \u0111\u01a1n v\u1ecb ngh\u00ecn, kh\u00f4ng ph\u1ea3i \u0111o\u00e1n.<\/li>\n<\/ol>\n\n\n\n

    Sau \u0111\u00f3 th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

    V\u1eady n\u1ebfu \u0111\u1ed9 s\u00e2u l\u00e0 vua, t\u1ea1i sao kh\u00f4ng ch\u1ec9 t\u0103ng c\u01b0\u1eddng l\u1ef1c v\u00e0 lo\u1ea1i b\u1ecf c\u00f4ng vi\u1ec7c \u0111o\u00e1n?<\/p>\n\n\n\n

    L\u1ee3i \u00edch ng\u01b0\u1ee3c l\u1ea1i: C\u00e1ch s\u1eed d\u1ee5ng l\u1ef1c \u00edt h\u01a1n \u0111\u1ec3 h\u1ea5p th\u1ee5 s\u1ef1 bi\u1ebfn \u0111\u1ed5i v\u1eadt li\u1ec7u thay v\u00ec ch\u1ed1ng l\u1ea1i n\u00f3.<\/h3>\n\n\n\n

    L\u1ea5y hai t\u1ea5m th\u00e9p 11-gauge. M\u1ed9t t\u1ea5m c\u00f3 \u0111\u1ed9 d\u00e0y 0.119\u2033. T\u1ea5m kia 0.123\u2033. S\u1ef1 kh\u00e1c bi\u1ec7t b\u1ed1n ngh\u00ecn. Kh\u00f4ng c\u00f3 v\u1ebb g\u00ec nhi\u1ec1u.<\/p>\n\n\n\n

    Trong u\u1ed1n kh\u00f4ng kh\u00ed, s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 d\u00e0y \u0111\u00f3 h\u01a1i d\u1ecbch chuy\u1ec3n tr\u1ee5c trung t\u00ednh \u2014 l\u1edbp t\u01b0\u1edfng t\u01b0\u1ee3ng kh\u00f4ng b\u1ecb k\u00e9o d\u00e0i ho\u1eb7c n\u00e9n. T\u1ea5m d\u00e0y h\u01a1n c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t b\u00e1n k\u00ednh b\u00ean trong l\u1edbn h\u01a1n m\u1ed9t ch\u00fat h\u00ecnh th\u00e0nh cho c\u00f9ng m\u1ed9t khe V. \u0110i\u1ec1u \u0111\u00f3 thay \u0111\u1ed5i \u0111\u1ed9 ph\u1ee5c h\u1ed3i c\u00f3 th\u1ec3 l\u00e0 n\u1eeda \u0111\u1ed9.<\/p>\n\n\n\n

    Nh\u01b0ng v\u00ec b\u1ea1n ch\u1ec9 t\u1ea1o ra ba \u0111i\u1ec3m ti\u1ebfp x\u00fac \u2014 \u0111\u1ea7u \u0111\u1ea5m v\u00e0 vai khu\u00f4n \u2014 h\u1ec7 th\u1ed1ng u\u1ed1n cong theo v\u1eadt li\u1ec7u. G\u00f3c thay \u0111\u1ed5i ch\u1ee7 y\u1ebfu b\u1edfi \u0111\u1ed9 s\u00e2u, kh\u00f4ng ph\u1ea3i b\u1eb1ng c\u00e1ch n\u00e9n \u0111\u1ed9 d\u00e0y v\u00e0o m\u1ed9t khoang c\u1ed1 \u0111\u1ecbnh. S\u1ef1 bi\u1ebfn \u0111\u1ed5i xu\u1ea5t hi\u1ec7n nh\u01b0 m\u1ed9t s\u1ef1 kh\u00e1c bi\u1ec7t g\u00f3c nh\u1ecf m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u.<\/p>\n\n\n\n

    B\u00e2y gi\u1edd h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng vi\u1ec7c \u0111\u00e1y c\u00f9ng c\u00e1c t\u1ea5m \u0111\u00f3.<\/p>\n\n\n\n

    \u0110i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 flirt v\u1edbi vi\u1ec7c \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. B\u00e2y gi\u1edd s\u1ef1 bi\u1ebfn \u0111\u1ed5i \u0111\u1ed9 d\u00e0y kh\u00f4ng c\u00f3 ch\u1ed7 n\u00e0o \u0111\u1ec3 \u0111i. \u0110\u1ed9 d\u00e0y th\u00eam 0.004\u2033 b\u1ecb n\u00e9n gi\u1eefa c\u00e1c c\u00f4ng c\u1ee5 th\u00e9p \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u1ee9ng h\u01a1n ph\u1ea7n. Tonnage t\u0103ng v\u1ecdt. G\u00f3c thay \u0111\u1ed5i. C\u00f4ng c\u1ee5 m\u00f2n. C\u00e1c ph\u1ea7n b\u1ecb \u0111\u00e1nh d\u1ea5u.<\/p>\n\n\n\n

    T\u00f4i t\u1eebng th\u1ea5y m\u1ed9t c\u1eeda h\u00e0ng d\u00f9ng t\u1ea5m trang \u0111i\u1ec3m 14-gauge v\u00ec h\u1ecd \u0111\u00e3 ch\u00e1n vi\u1ec7c \u201c\u0111u\u1ed5i theo \u0111\u1ed9 h\u1ed3i\u201d. H\u1ecd \u0111\u00e3 lo\u1ea1i b\u1ecf 1\u00b0 bi\u1ebfn \u0111\u1ed9ng v\u00e0 th\u00eam d\u1ea5u khu\u00f4n v\u00e0o 200 b\u1ec1 m\u1eb7t nh\u00ecn th\u1ea5y. Kh\u00e1ch h\u00e0ng \u0111\u00e3 t\u1eeb ch\u1ed1i l\u00f4 h\u00e0ng. H\u1ecd \u0111\u00e3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 tr\u00f4i g\u00f3c v\u00e0 t\u1ea1o ra m\u1ed9t th\u1ea3m h\u1ecda ho\u00e0n thi\u1ec7n.<\/p>\n\n\n\n

    B\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed s\u1ebd h\u1ea5p th\u1ee5 s\u1ef1 ph\u00e2n t\u00e1n \u0111\u1ed9 d\u00e0y \u0111\u00f3. M\u1ed9t s\u1ef1 thay \u0111\u1ed5i 0.5\u00b0 r\u1ebb h\u01a1n so v\u1edbi vi\u1ec7c ho\u00e0n thi\u1ec7n l\u1ea1i 200 t\u1ea5m.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 k\u1ef7 lu\u1eadt:<\/p>\n\n\n\n

      \n
    • Gi\u1eef b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed \u0111\u00fang \u2014 kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi t\u01b0\u1eddng khu\u00f4n.<\/li>\n\n\n\n
    • K\u00edch th\u01b0\u1edbc V c\u1ee7a b\u1ea1n kho\u1ea3ng 8\u00d7 \u0111\u1ed9 d\u00e0y cho th\u00e9p, 6\u00d7 cho nh\u00f4m m\u1ec1m h\u01a1n nh\u01b0 m\u1ed9t \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u.<\/li>\n\n\n\n
    • Gi\u1eef t\u1ea3i tr\u1ecdng d\u01b0\u1edbi ng\u01b0\u1ee1ng \u0111\u00e1y.<\/li>\n\n\n\n
    • \u0110o s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u theo t\u1eebng b\u01b0\u1edbc nh\u1ecf.<\/li>\n<\/ul>\n\n\n\n

      Sau \u0111\u00f3 th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      N\u1ebfu l\u1ef1c \u00edt h\u01a1n mang l\u1ea1i cho b\u1ea1n s\u1ef1 linh ho\u1ea1t, th\u00ec \u0111\u00e2u l\u00e0 gi\u1edbi h\u1ea1n tr\u01b0\u1edbc khi b\u1ea1n m\u1ea5t quy\u1ec1n ki\u1ec3m so\u00e1t \u0111\u1ed1i v\u1edbi \u0111\u1ed9 b\u1ebb?<\/p>\n\n\n\n

      \u0110i\u1ec3m ng\u1ecdt c\u1ee7a t\u1ea3i tr\u1ecdng: \u0110\u1ee7 l\u1ef1c \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh, kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o khu\u00f4n<\/h3>\n\n\n\n

      Nh\u00ecn v\u00e0o bi\u1ec3u \u0111\u1ed3 t\u1ea3i tr\u1ecdng c\u1ee7a b\u1ea1n. \u0110\u1ed1i v\u1edbi A36 d\u00e0y 1\/8\u2033 trong m\u1ed9t V 1\u2033, b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 y\u00eau c\u1ea7u kho\u1ea3ng 12\u201315 t\u1ea5n m\u1ed7i foot. \u0110\u00e1y c\u00f9ng thi\u1ebft l\u1eadp \u0111\u00f3 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u g\u1ea5p \u0111\u00f4i ho\u1eb7c g\u1ea5p ba.<\/p>\n\n\n\n

      N\u1ebfu m\u00e1y b\u1ebb c\u1ee7a b\u1ea1n \u0111\u1ecdc 30 t\u1ea5n m\u1ed7i foot trong c\u00f4ng vi\u1ec7c \u0111\u00f3, b\u1ea1n kh\u00f4ng c\u00f2n b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed n\u1eefa. B\u1ea1n \u0111ang chuy\u1ec3n sang \u0111\u00e1y d\u00f9 b\u1ea1n c\u00f3 k\u1ebf ho\u1ea1ch hay kh\u00f4ng. \u0110\u1ed9 h\u1ed3i gi\u1ea3m \u2014 ch\u1eafc ch\u1eafn. Nh\u01b0ng gi\u1edd b\u00e1n k\u00ednh b\u00ean trong b\u1ecb \u00e9p nh\u1ecf h\u01a1n b\u00e1n k\u00ednh b\u1ebb cong t\u1ef1 nhi\u00ean. To\u00e0n b\u1ed9 \u0111\u1ed9 d\u00e0y \u0111ang b\u1ecb \u0111\u1ea9y g\u1ea7n \u0111\u1ebfn \u0111i\u1ec3m ch\u1ea3y. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 l\u00f5i \u0111\u00e0n h\u1ed3i \u00edt h\u01a1n. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 \u00edt s\u1ef1 tha th\u1ee9 h\u01a1n.<\/p>\n\n\n\n

      Ki\u1ec3m so\u00e1t tr\u1edf th\u00e0nh s\u1ef1 ph\u1ee5 thu\u1ed9c. Gi\u1edd \u0111\u00e2y, g\u00f3c ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y ch\u00ednh x\u00e1c v\u00e0 h\u00ecnh h\u1ecdc khu\u00f4n ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

      Tr\u00ean c\u00e1c m\u00e1y b\u1ebb th\u1ee7 c\u00f4ng c\u0169 m\u00e0 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i \u0111\u1ed9 s\u00e2u CNC, \u0111\u00e2y l\u00e0 n\u01a1i m\u00e0 nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u b\u1ecb t\u1ed5n th\u01b0\u01a1ng. H\u1ecd ngh\u0129 r\u1eb1ng \u00e1p l\u1ef1c nhi\u1ec1u h\u01a1n \u0111\u1ed3ng ngh\u0129a v\u1edbi s\u1ef1 nh\u1ea5t qu\u00e1n nhi\u1ec1u h\u01a1n. Th\u1ef1c t\u1ebf, h\u1ecd \u0111\u00e3 lo\u1ea1i b\u1ecf \u0111\u1ec7m n\u1ed5i m\u00e0 b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed mang l\u1ea1i cho h\u1ecd. B\u1ea5t k\u1ef3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng n\u00e0o c\u1ee7a ram, b\u1ea5t k\u1ef3 s\u1ef1 bi\u1ebfn d\u1ea1ng n\u00e0o trong khung, b\u1ea5t k\u1ef3 s\u1ef1 thay \u0111\u1ed5i h\u01b0\u1edbng h\u1ea1t n\u00e0o \u0111\u1ec1u hi\u1ec3n th\u1ecb tr\u1ef1c ti\u1ebfp tr\u00ean ph\u1ea7n.<\/p>\n\n\n\n

      \u0110i\u1ec3m ng\u1ecdt l\u00e0 \u0111\u00e2y:<\/p>\n\n\n\n

      \u0110\u1ee7 \u0111\u1ed9 th\u00e2m nh\u1eadp \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c c\u1ed9ng v\u1edbi \u0111\u1ed9 b\u1ebb d\u1ef1 ki\u1ebfn. \u0110\u1ee7 t\u1ea3i tr\u1ecdng \u0111\u1ec3 h\u00ecnh th\u00e0nh b\u00e1n k\u00ednh b\u00ean trong t\u1ef1 nhi\u00ean. Kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 \u00e9p ti\u1ebfp x\u00fac to\u00e0n b\u1ed9 khu\u00f4n.<\/p>\n\n\n\n

      Theo d\u00f5i \u0111\u1ed3ng h\u1ed3 t\u1ea3i tr\u1ecdng trong su\u1ed1t h\u00e0nh tr\u00ecnh. N\u1ebfu n\u00f3 t\u0103ng m\u1ea1nh \u1edf \u0111\u00e1y h\u00e0nh tr\u00ecnh, b\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng \u0111ang ch\u1ea1m v\u00e0o t\u01b0\u1eddng khu\u00f4n. Gi\u1ea3m \u0111\u1ed9 s\u00e2u v\u00e0i ng\u00e0n v\u00e0 \u0111o l\u1ea1i.<\/p>\n\n\n\n

      Sau \u0111\u00f3 ch\u1ea1y ba phi\u1ebfu li\u00ean ti\u1ebfp v\u00e0 so s\u00e1nh g\u00f3c sau khi gi\u1ea3i ph\u00f3ng ho\u00e0n to\u00e0n. N\u1ebfu ch\u00fang l\u1eb7p l\u1ea1i trong ph\u1ea1m vi cho ph\u00e9p c\u1ee7a b\u1ea1n, h\u00e3y kh\u00f3a l\u1ea1i.<\/p>\n\n\n\n

      V\u00e0 th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      B\u1edfi v\u00ec m\u1ed9t khi b\u1ea1n hi\u1ec3u r\u1eb1ng \u0111\u1ed9 s\u00e2u c\u1ee7a m\u0169i khoan \u2014 kh\u00f4ng ph\u1ea3i s\u1ee9c m\u1ea1nh th\u00f4 \u2014 quy\u1ebft \u0111\u1ecbnh g\u00f3c ho\u00e0n thi\u1ec7n c\u1ee7a b\u1ea1n, \u0111i\u1ec1u ti\u1ebfp theo b\u1ea1n n\u00ean h\u1ecfi l\u00e0:<\/p>\n\n\n\n

      C\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n c\u1ea7n ch\u00ednh x\u00e1c \u0111\u1ebfn m\u1ee9c n\u00e0o n\u1ebfu \u0111\u1ed9 s\u00e2u h\u00e0ng ng\u00e0n \u0111ang \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 b\u1ebb g\u00f3c?<\/p>\n\n\n\n

      D\u1ecbch v\u1eadt l\u00fd sang m\u00e1y: Thi\u1ebft l\u1eadp m\u1ed9t \u0111\u1ed9 cong kh\u00f4ng kh\u00ed ch\u00ednh x\u00e1c<\/h2>\n\n\n\n

      Th\u00e1ng tr\u01b0\u1edbc, ch\u00fang t\u00f4i \u0111\u00e3 u\u1ed1n t\u1ea5m A36 d\u00e0y 1\/8\u2033 trong m\u1ed9t khe V 1\u2033 \u0111\u1ebfn 93\u00b0 \u0111\u1ec3 n\u00f3 c\u00f3 th\u1ec3 \u0111\u00e0n h\u1ed3i tr\u1edf l\u1ea1i 90\u00b0. C\u00e1i \u0111\u1ea7u ti\u00ean \u0111\u1ecdc 90\u00b0. C\u00e1i th\u1ee9 hai \u0111\u1ecdc 91.2\u00b0. Kh\u00f4ng c\u00f3 g\u00ec thay \u0111\u1ed5i trong ch\u01b0\u01a1ng tr\u00ecnh. \u0110i\u1ec1u thay \u0111\u1ed5i l\u00e0 thi\u1ebft l\u1eadp: t\u1ea5m th\u00e9p d\u00e0y h\u01a1n .006\u2033 \u1edf \u0111\u1ea7u xa, v\u00e0 tr\u1ee5c c\u00f3 th\u1ec3 b\u1ecb l\u1ec7ch kho\u1ea3ng .002\u2033 tr\u00ean 6\u2032. \u0110\u00f3 l\u00e0 t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec c\u1ea7n thi\u1ebft. Nh\u1eefng ph\u1ea7n ngh\u00ecn trong \u0111\u1ed9 s\u00e2u bi\u1ebfn th\u00e0nh nh\u1eefng \u0111\u1ed9 to\u00e0n ph\u1ea7n \u1edf ph\u1ea7n s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

      B\u1ea1n \u0111\u00e3 bi\u1ebft \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp l\u00e0 v\u00f4 l\u0103ng. B\u00e2y gi\u1edd ch\u00fang ta \u0111\u1ea3m b\u1ea3o r\u1eb1ng li\u00ean k\u1ebft l\u00e1i kh\u00f4ng b\u1ecb l\u1ecfng l\u1ebbo.<\/p>\n\n\n\n

      B\u1eaft \u0111\u1ea7u v\u1edbi m\u00e1y. Ki\u1ec3m tra \u0111\u1ed9 song song c\u1ee7a tr\u1ee5c b\u1eb1ng m\u1ed9t c\u1eb7p kh\u1ed1i \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e0i v\u00e0 m\u1ed9t th\u01b0\u1edbc \u0111o c\u1ea3m bi\u1ebfn. N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0a m\u1ed9t th\u01b0\u1edbc \u0111o c\u1ea3m bi\u1ebfn .003\u2033 v\u00e0o m\u1ed9t b\u00ean m\u00e0 kh\u00f4ng ph\u1ea3i b\u00ean kia \u1edf \u0111\u00e1y h\u00e0nh tr\u00ecnh, b\u1ea1n s\u1ebd ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh g\u00f3c c\u1ea3 ng\u00e0y. \u0110\u00f3 l\u00e0 l\u00fac vi\u1ec7c v\u00e1t m\u00e9p tr\u1edf n\u00ean c\u1ea7n thi\u1ebft \u2014 b\u00f9 \u0111\u1eafp c\u01a1 h\u1ecdc ho\u1eb7c th\u1ee7y l\u1ef1c \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a khung d\u01b0\u1edbi t\u1ea3i. N\u1ebfu kh\u00f4ng c\u00f3 n\u00f3, ph\u1ea7n gi\u1eefa u\u1ed1n 89\u00b0 trong khi c\u00e1c \u0111\u1ea7u \u0111\u1ecdc 91\u00b0. T\u00f4i \u0111\u00e3 ch\u1ee9ng ki\u1ebfn m\u1ed9t x\u01b0\u1edfng b\u1ecf \u0111i 40 thanh ki\u1ebfn tr\u00fac v\u00ec kh\u00f4ng ai ki\u1ec3m tra s\u1ef1 bi\u1ebfn d\u1ea1ng sau khi m\u1ed9t c\u00f4ng vi\u1ec7c 20 t\u1ea5n tr\u01b0\u1edbc \u0111\u00f3 trong ca l\u00e0m \u1ea5m khung. Chi\u1ebfc phanh \u0111\u00e3 l\u1edbn l\u00ean \u0111\u1ee7 \u0111\u1ec3 l\u1eeba h\u1ecd.<\/p>\n\n\n\n

      \u0110i\u1ec1u ch\u1ec9nh song song. X\u00e1c minh vi\u1ec7c v\u00e1t m\u00e9p b\u1eb1ng m\u1ed9t d\u1ea3i th\u1eed nghi\u1ec7m d\u00e0i \u0111\u1ea7y \u0111\u1ee7. Sau \u0111\u00f3, th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      Khi m\u00e1y \u0111\u00e3 ch\u00ednh x\u00e1c, h\u00ecnh h\u1ecdc d\u1ee5ng c\u1ee5 l\u00e0 b\u01b0\u1edbc ti\u1ebfp theo. \u0110\u00f3 l\u00e0 n\u01a1i m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u c\u01b0\u1ee3c m\u00e0 kh\u00f4ng nh\u1eadn ra.<\/p>\n\n\n\n

      Quy t\u1eafc 8x: M\u1edf khe V c\u1ee7a b\u1ea1n n\u00ean r\u1ed9ng bao nhi\u00eau?<\/h3>\n\n\n\n

      L\u1ea5y m\u1ed9t th\u01b0\u1edbc c\u1eb7p. \u0110o t\u1ea5m c\u1ee7a b\u1ea1n. Gi\u1ea3 s\u1eed n\u00f3 d\u00e0y .125\u2033. Nh\u00e2n v\u1edbi 8. \u0110i\u1ec1u \u0111\u00f3 cho b\u1ea1n m\u1ed9t khe V 1.000\u2033 cho th\u00e9p nh\u1eb9. Kh\u00f4ng ph\u1ea3i 7\u00d7 v\u00ec n\u00f3 \u201cg\u1ea7n \u0111\u00fang.\u201d Kh\u00f4ng ph\u1ea3i 10\u00d7 v\u00ec n\u00f3 \u201cc\u00e1i c\u00f3 trong gi\u00e1.\u201d T\u00e1m l\u1ea7n \u0111\u1ed9 d\u00e0y l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u v\u00ec n\u00f3 c\u00e2n b\u1eb1ng ba y\u1ebfu t\u1ed1: h\u00ecnh th\u00e0nh b\u00e1n k\u00ednh b\u00ean trong, t\u1ea3i tr\u1ecdng c\u1ea7n thi\u1ebft v\u00e0 kh\u1ea3 n\u0103ng d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 \u0111\u00e0n h\u1ed3i.<\/p>\n\n\n\n

      Trong m\u1ed9t thi\u1ebft l\u1eadp 8\u00d7 th\u1ef1c s\u1ef1 tr\u00ean th\u00e9p nh\u1eb9, b\u00e1n k\u00ednh b\u00ean trong c\u1ee7a b\u1ea1n s\u1ebd r\u01a1i v\u00e0o kho\u1ea3ng 16% c\u1ee7a khe V. Trong m\u1ed9t khe V 1\u2033, \u0111\u00f3 l\u00e0 kho\u1ea3ng b\u00e1n k\u00ednh b\u00ean trong .160\u2033. B\u00e1n k\u00ednh \u0111\u00f3 x\u00e1c \u0111\u1ecbnh bao nhi\u00eau ph\u1ea7n c\u1ee7a m\u1eb7t c\u1eaft s\u1ebd bi\u1ebfn d\u1ea1ng. Thay \u0111\u1ed5i khe V th\u00e0nh 3\/4\u2033 v\u00e0 b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean c\u1ee7a b\u1ea1n co l\u1ea1i kho\u1ea3ng .120\u2033. B\u00e1n k\u00ednh nh\u1ecf h\u01a1n c\u00f3 ngh\u0129a l\u00e0 bi\u1ebfn d\u1ea1ng d\u1ebbo nhi\u1ec1u h\u01a1n. Bi\u1ebfn d\u1ea1ng d\u1ebbo nhi\u1ec1u h\u01a1n c\u00f3 ngh\u0129a l\u00e0 \u00edt \u0111\u1ed9 \u0111\u00e0n h\u1ed3i h\u01a1n \u2014 v\u00e0 nhi\u1ec1u t\u1ea3i tr\u1ecdng h\u01a1n.<\/p>\n\n\n\n

      T\u00f4i t\u1eebng th\u1ea5y m\u1ed9t ng\u01b0\u1eddi \u00e9p t\u1ea5m d\u00e0y 3\/16\u2033 trong m\u1ed9t khe V 1\u2033 v\u00ec n\u00f3 \u201cv\u1eeba v\u1eb7n.\u201d \u0110\u00f3 ch\u1ec9 l\u00e0 5.3\u00d7 \u0111\u1ed9 d\u00e0y. T\u1ea3i tr\u1ecdng \u0111\u00e3 v\u01b0\u1ee3t qu\u00e1 b\u1ea3ng. H\u1ecd \u0111\u00e3 l\u00e0m g\u00e3y m\u1ed9t vai khu\u00f4n ho\u00e0n to\u00e0n. T\u00e1m ng\u00e0n \u0111\u00f4 la \u0111\u00e3 m\u1ea5t v\u00ec kh\u00f4ng ai l\u00e0m ph\u00e9p nh\u00e2n.<\/p>\n\n\n\n

      C\u00f3 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n: c\u00e1c kho\u1ea3ng c\u00e1ch ch\u1eb7t ch\u1ebd g\u1ea7n h\u01a1n kho\u1ea3ng 6\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 va ch\u1ea1m v\u1edbi m\u1ed9t khu\u00f4n 8\u00d7. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m k\u00edch th\u01b0\u1edbc khe V, nh\u01b0ng b\u1ea1n n\u00ean t\u00ednh to\u00e1n l\u1ea1i t\u1ea3i tr\u1ecdng v\u00e0 mong \u0111\u1ee3i m\u1ed9t b\u00e1n k\u00ednh b\u00ean trong v\u00e0 s\u1ed1 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i kh\u00e1c. Thay \u0111\u1ed5i m\u1ed9t bi\u1ebfn, c\u1eadp nh\u1eadt to\u00e1n h\u1ecdc.<\/p>\n\n\n\n

      Ch\u1ecdn khe V t\u1eeb \u0111\u1ed9 d\u00e0y, kh\u00f4ng ph\u1ea3i t\u1eeb s\u1ef1 ti\u1ec7n l\u1ee3i. X\u00e1c nh\u1eadn to\u00e1n h\u1ecdc v\u1edbi b\u1ea3ng t\u1ea3i tr\u1ecdng c\u1ee7a b\u1ea1n. Sau \u0111\u00f3, th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      N\u1ebfu khe V x\u00e1c \u0111\u1ecbnh b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean, th\u00ec m\u0169i khoan th\u1ef1c s\u1ef1 \u0111ang l\u00e0m g\u00ec?<\/p>\n\n\n\n

      B\u00e1n k\u00ednh m\u0169i khoan so v\u1edbi chi\u1ec1u r\u1ed9ng khu\u00f4n: L\u1ef1a ch\u1ecdn d\u1ee5ng c\u1ee5 n\u00e0o \u0111ang \u00e2m th\u1ea7m quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n

      \u0110\u1eb7t m\u1ed9t m\u0169i khoan s\u1eafc \u2014 gi\u1ea3 s\u1eed \u0111\u1ea7u m\u0169i .030\u2033 \u2014 l\u00ean khe V 1\u2033 v\u1edbi th\u00e9p d\u00e0y 1\/8\u2033. Nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u ngh\u0129 r\u1eb1ng b\u00e1n k\u00ednh b\u00ean trong s\u1ebd l\u00e0 .030\u2033. N\u00f3 s\u1ebd kh\u00f4ng. Trong u\u1ed1n kh\u00f4ng kh\u00ed, chi\u1ec1u r\u1ed9ng khu\u00f4n ch\u1ee7 y\u1ebfu quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh b\u00ean trong, kh\u00f4ng ph\u1ea3i \u0111\u1ea7u m\u0169i, mi\u1ec5n l\u00e0 b\u00e1n k\u00ednh m\u0169i nh\u1ecf h\u01a1n b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean m\u00e0 khe V mu\u1ed1n t\u1ea1o ra.<\/p>\n\n\n\n

      B\u00e1n k\u00ednh b\u00ean trong .160\u2033 m\u00e0 ch\u00fang ta \u0111\u00e3 n\u00f3i \u0111\u1ebfn? N\u00f3 h\u00ecnh th\u00e0nh v\u00ec t\u1ea5m \u0111ang n\u1ed5i gi\u1eefa c\u00e1c vai. N\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng khe V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n. M\u0169i khoan ch\u1ec9 kh\u1edfi \u0111\u1ea7u vi\u1ec7c u\u1ed1n v\u00e0 t\u1eadp trung l\u1ef1c.<\/p>\n\n\n\n

      B\u00e2y gi\u1edd h\u00e3y thay th\u1ebf b\u1eb1ng m\u1ed9t m\u0169i khoan c\u00f3 b\u00e1n k\u00ednh .200\u2033 \u2014 l\u1edbn h\u01a1n b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean .160\u2033. \u0110\u1ed9t nhi\u00ean, m\u0169i khoan tr\u1edf th\u00e0nh gi\u1edbi h\u1ea1n. V\u1eadt li\u1ec7u qu\u1ea5n quanh m\u0169i khoan, v\u00e0 b\u00e1n k\u00ednh b\u00ean trong c\u1ee7a b\u1ea1n t\u0103ng l\u00ean. \u0110\u1ed9 \u0111\u00e0n h\u1ed3i thay \u0111\u1ed5i v\u00ec v\u00f9ng d\u1ebbo c\u1ee7a b\u1ea1n \u0111\u00e3 thay \u0111\u1ed5i. C\u00f9ng m\u1ed9t khe V. C\u00f9ng m\u1ed9t \u0111\u1ed9 d\u00e0y. K\u1ebft qu\u1ea3 kh\u00e1c nhau.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 h\u1ecdc \u0111i\u1ec1u \u0111\u00f3 tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 d\u00e0y 3\/32\u2033. Ch\u00fang t\u00f4i \u0111\u00e3 chuy\u1ec3n sang b\u00e1n k\u00ednh m\u0169i khoan l\u1edbn h\u01a1n \u0111\u1ec3 ng\u0103n ch\u1eb7n n\u1ee9t b\u1ec1 m\u1eb7t tr\u00ean m\u1ed9t ph\u1ea7n th\u1ea9m m\u1ef9 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ea3i. B\u00e1n k\u00ednh b\u00ean trong t\u0103ng kho\u1ea3ng 1\/32\u2033. \u0110\u1ed9 \u0111\u00e0n h\u1ed3i t\u0103ng g\u1ea7n m\u1ed9t \u0111\u1ed9. Kh\u00f4ng ai \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 u\u1ed1n qu\u00e1 m\u1ee9c. Ch\u00fang t\u00f4i \u0111\u00e3 b\u1ecf \u0111i to\u00e0n b\u1ed9 l\u00f4 t\u1ea5m v\u1edbi c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf v\u00e0 g\u00f3c sai trong c\u00f9ng m\u1ed9t tu\u1ea7n.<\/p>\n\n\n\n

      Kh\u1edbp b\u00e1n k\u00ednh m\u0169i khoan \u0111\u1ec3 b\u1eb1ng ho\u1eb7c nh\u1ecf h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean d\u1ef1 ki\u1ebfn tr\u1eeb khi b\u1ea3n v\u1ebd y\u00eau c\u1ea7u kh\u00e1c. N\u1ebfu b\u1ea1n c\u1ed1 t\u00ecnh thay \u0111\u1ed5i n\u00f3, h\u00e3y \u0111i\u1ec1u ch\u1ec9nh m\u1ee5c ti\u00eau u\u1ed1n qu\u00e1 m\u1ee9c v\u00e0 k\u1ef3 v\u1ecdng t\u1ea3i tr\u1ecdng.<\/p>\n\n\n\n

      Thi\u1ebft l\u1eadp n\u00f3. Ch\u1ea1y m\u1ed9t m\u1eabu th\u1eed. \u0110o b\u00e1n k\u00ednh b\u00ean trong b\u1eb1ng th\u01b0\u1edbc \u0111o b\u00e1n k\u00ednh, kh\u00f4ng ph\u1ea3i b\u1eb1ng m\u1eaft b\u1ea1n. Sau \u0111\u00f3, th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      Khi h\u00ecnh h\u1ecdc \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a g\u00f3c ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t \u0111\u1ed9ng t\u00e1c c\u00f3 ch\u1ee7 \u0111\u00edch: nh\u1eafm qua m\u1ee5c ti\u00eau.<\/p>\n\n\n\n

      B\u1ebb cong qu\u00e1 90\u00b0 c\u00f3 ch\u1ee7 \u0111\u00edch: C\u00e1ch \u201cnh\u1eafm qua\u201d s\u1ef1 h\u1ed3i ph\u1ee5c<\/h3>\n\n\n\n

      L\u1ea5y t\u1ea5m A36 d\u00e0y 1\/8\u2033 trong m\u1ed9t V d\u00e0y 1\u2033. S\u1ef1 h\u1ed3i ph\u1ee5c \u0111i\u1ec3n h\u00ecnh c\u00f3 th\u1ec3 l\u00e0 2\u00b0 trong b\u1ebb cong kh\u00f4ng kh\u00ed. V\u00ec v\u1eady, n\u1ebfu b\u1ea3n v\u1ebd y\u00eau c\u1ea7u 90\u00b0, b\u1ea1n l\u1eadp tr\u00ecnh cho 92\u00b0. C\u00f3 th\u1ec3 93\u00b0 t\u00f9y thu\u1ed9c v\u00e0o h\u01b0\u1edbng v\u00e2n.<\/p>\n\n\n\n

      \u0110\u1eebng \u0111o\u00e1n. B\u1ebb m\u1ed9t m\u1eabu \u0111\u1ebfn 90\u00b0 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng v\u00e0 \u0111\u1ec3 n\u00f3 h\u1ed3i ph\u1ee5c. N\u1ebfu n\u00f3 m\u1edf ra 92\u00b0, b\u1ea1n bi\u1ebft r\u1eb1ng s\u1ef1 h\u1ed3i ph\u1ee5c l\u00e0 2\u00b0. B\u00e2y gi\u1edd b\u1ebb \u0111\u1ebfn 88\u00b0 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng \u0111\u1ec3 n\u00f3 h\u1ed3i ph\u1ee5c v\u1ec1 90\u00b0. \u0110\u00f3 l\u00e0 nh\u1eafm qua g\u00f3c.<\/p>\n\n\n\n

      \u0110i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 d\u1ef1 \u0111o\u00e1n l\u01b0\u1ee3ng l\u00f5i \u0111\u00e0n h\u1ed3i c\u00f2n l\u1ea1i sau khi b\u1ea1n gi\u1ea3i ph\u00f3ng \u00e1p l\u1ef1c. B\u1ea1n \u0111ang th\u01b0\u01a1ng l\u01b0\u1ee3ng v\u1edbi n\u00f3. N\u1ebfu b\u1ea1n \u0111\u1ea9y m\u1ea1nh h\u01a1n v\u00e0 drift v\u1ec1 ph\u00eda \u0111\u00e1y, s\u1ef1 h\u1ed3i ph\u1ee5c s\u1ebd gi\u1ea3m \u2014 nh\u01b0ng b\u00e2y gi\u1edd s\u1ef1 bi\u1ebfn thi\u00ean \u0111\u1ed9 d\u00e0y ki\u1ec3m so\u00e1t g\u00f3c c\u1ee7a b\u1ea1n thay v\u00ec \u0111\u1ed9 s\u00e2u. \u0110\u00f3 l\u00e0 c\u00e1ch m\u00e0 nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u b\u1ecb l\u1eeba t\u01b0\u1edfng r\u1eb1ng s\u1ee9c m\u1ea1nh th\u00f4 l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh m\u1edbi theo \u0111u\u1ed5i m\u1ed9t l\u1ed7i 0.5\u00b0 b\u1eb1ng c\u00e1ch t\u0103ng \u00e1p l\u1ef1c thay v\u00ec \u0111\u1ed9 s\u00e2u. Anh ta \u0111\u00e3 v\u01b0\u1ee3t qua ti\u1ebfp x\u00fac v\u1edbi khu\u00f4n. G\u00f3c tr\u00f4ng ho\u00e0n h\u1ea3o cho n\u0103m ph\u1ea7n. Sau \u0111\u00f3, t\u1ea5m ti\u1ebfp theo, d\u00e0y h\u01a1n 0.004\u2033, ra 1.5\u00b0 ch\u1eb7t. Anh ta \u0111\u00e3 v\u00f4 t\u00ecnh lo\u1ea1i b\u1ecf kh\u00f4ng kh\u00ed \u0111\u1ec7m m\u00e0 b\u1ebb cong mang l\u1ea1i cho b\u1ea1n.<\/p>\n\n\n\n

      Ghi l\u1ea1i s\u1ed1 li\u1ec7u h\u1ed3i ph\u1ee5c th\u1ef1c t\u1ebf cho v\u1eadt li\u1ec7u \u0111\u00f3, \u0111\u1ed9 d\u00e0y, h\u01b0\u1edbng v\u00e2n v\u00e0 V. L\u1eadp tr\u00ecnh cho s\u1ef1 b\u1ebb cong c\u00f3 ch\u1ee7 \u0111\u00edch. Sau \u0111\u00f3 x\u00e1c nh\u1eadn ba ph\u1ea7n li\u00ean ti\u1ebfp sau khi \u0111\u00e3 gi\u1ea3i ph\u00f3ng ho\u00e0n to\u00e0n.<\/p>\n\n\n\n

      V\u00e0 v\u00e2ng \u2014 h\u00e3y th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      Nh\u01b0ng t\u1ea5t c\u1ea3 \u0111i\u1ec1u n\u00e0y gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng b\u1ea1n \u0111ang \u1edf trong gi\u1edbi h\u1ea1n t\u1ea5n an to\u00e0n. B\u1ecf l\u1ee1 \u0111i\u1ec1u \u0111\u00f3, v\u00e0 ph\u1ea7n c\u00f2n l\u1ea1i kh\u00f4ng quan tr\u1ecdng.<\/p>\n\n\n\n

      \u0110\u1ecdc bi\u1ec3u \u0111\u1ed3 t\u1ea5n so v\u1edbi \u0111o\u00e1n: T\u00ednh to\u00e1n ng\u0103n ng\u1eeba h\u01b0 h\u1ea1i c\u00f4ng c\u1ee5<\/h3>\n\n\n\n

      M\u1edf bi\u1ec3u \u0111\u1ed3. T\u00ecm th\u00e9p nh\u1eb9 d\u00e0y 1\/8\u2033 trong m\u1ed9t V d\u00e0y 1\u2033. B\u1ea1n s\u1ebd th\u1ea5y kho\u1ea3ng 12\u201315 t\u1ea5n m\u1ed7i foot cho b\u1ebb cong kh\u00f4ng kh\u00ed. Tr\u00ean m\u1ed9t ph\u1ea7n d\u00e0i 4\u2032, t\u1ed5ng c\u1ed9ng l\u00e0 48\u201360 t\u1ea5n. N\u1ebfu m\u00e1y b\u1ebb c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 100 t\u1ea5n tr\u00ean 10\u2032, b\u1ea1n \u1ed5n \u2014 mi\u1ec5n l\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang b\u1ebb cong kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

      B\u00e2y gi\u1edd h\u00e3y nh\u00ecn v\u00e0o s\u1ed1 li\u1ec7u \u0111\u00e1y cho c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp. Ch\u00fang c\u00f3 th\u1ec3 nh\u1ea3y l\u00ean 25\u201330 t\u1ea5n m\u1ed7i foot ho\u1eb7c h\u01a1n. \u0110\u00f3 l\u00e0 g\u1ea5p \u0111\u00f4i. \u0110\u00f4i khi g\u1ea5p ba.<\/p>\n\n\n\n

      N\u1ebfu \u0111\u1ed3ng h\u1ed3 t\u1ea5n c\u1ee7a b\u1ea1n t\u0103ng m\u1ea1nh \u1edf \u0111\u00e1y h\u00e0nh tr\u00ecnh, b\u1ea1n kh\u00f4ng c\u00f2n n\u1ed5i gi\u1eefa c\u00e1c vai n\u1eefa. B\u1ea1n \u0111ang \u0111\u1ea9y v\u1eadt li\u1ec7u v\u00e0o c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. \u0110i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 flirt v\u1edbi \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. C\u00f4ng c\u1ee5 s\u1ebd th\u1ea5y t\u1ea3i tr\u1ecdng \u0111\u00f3 tr\u01b0\u1edbc khi b\u1ea1n l\u00e0m.<\/p>\n\n\n\n

      Ch\u00fang t\u00f4i \u0111\u00e3 c\u00f3 m\u1ed9t m\u00e1y \u00e9p 90 t\u1ea5n g\u00e3y m\u1ed9t m\u0169i \u0111\u1ee5c ph\u00e2n \u0111o\u1ea1n v\u00ec ai \u0111\u00f3 \u0111\u00e3 gi\u1ea3 \u0111\u1ecbnh \u201cn\u00f3 ch\u1ec9 l\u00e0 11-gauge.\u201d H\u1ecd kh\u00f4ng nh\u1eadn ra r\u1eb1ng V \u0111\u00e3 b\u1ecb nh\u1ecf h\u01a1n v\u00e0 ph\u1ea7n \u0111\u00f3 d\u00e0i 6\u2032. T\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf v\u01b0\u1ee3t qu\u00e1 x\u1ebfp h\u1ea1ng c\u00f4ng c\u1ee5 kho\u1ea3ng 20%. Th\u00e9p kh\u00f4ng quan t\u00e2m \u0111\u1ebfn nh\u1eefng gi\u1ea3 \u0111\u1ecbnh c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

      T\u00ednh to\u00e1n t\u1ea5n m\u1ed7i foot. Nh\u00e2n v\u1edbi chi\u1ec1u d\u00e0i b\u1ebb cong. So s\u00e1nh v\u1edbi c\u1ea3 c\u00f4ng su\u1ea5t m\u00e1y v\u00e0 x\u1ebfp h\u1ea1ng c\u00f4ng c\u1ee5 \u2014 m\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 c\u00f9ng m\u1ed9t s\u1ed1. Gi\u1eef d\u01b0\u1edbi gi\u1edbi h\u1ea1n t\u1ea5n \u0111\u00e1y m\u1ed9t c\u00e1ch tho\u1ea3i m\u00e1i n\u1ebfu c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c b\u1ebb cong kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

      \u0110\u1eb7t d\u1eebng \u0111\u1ed9 s\u00e2u d\u1ef1a tr\u00ean g\u00f3c, kh\u00f4ng ph\u1ea3i l\u1ef1c. Theo d\u00f5i \u0111\u1ed3ng h\u1ed3 cho nh\u1eefng c\u00fa nh\u1ea3y b\u1ea5t ng\u1edd. Sau \u0111\u00f3 ch\u1ea1y b\u00e0i vi\u1ebft \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n v\u00e0 \u0111o.<\/p>\n\n\n\n

      B\u1edfi v\u00ec m\u1ed9t khi b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn V \u0111\u00fang, kh\u1edbp v\u1edbi m\u0169i \u0111\u1ee5c, nh\u1eafm qua s\u1ef1 h\u1ed3i ph\u1ee5c, v\u00e0 ch\u1ee9ng minh r\u1eb1ng t\u1ea5n l\u00e0 an to\u00e0n, b\u1ea1n kh\u00f4ng c\u00f2n nghi\u1ec1n n\u00e1t kim lo\u1ea1i n\u1eefa.<\/p>\n\n\n\n

      Ph\u1ea7n k\u1ebft th\u00fac<\/th>N\u1ed9i dung<\/th><\/tr><\/thead>
      Ti\u00eau \u0111\u1ec1<\/td>\u0110\u1ecdc bi\u1ec3u \u0111\u1ed3 t\u1ea5n so v\u1edbi \u0111o\u00e1n: T\u00ednh to\u00e1n ng\u0103n ng\u1eeba h\u01b0 h\u1ea1i c\u00f4ng c\u1ee5<\/td><\/tr>
      Tham kh\u1ea3o B\u1ebb cong kh\u00f4ng kh\u00ed<\/td>M\u1edf bi\u1ec3u \u0111\u1ed3. T\u00ecm th\u00e9p nh\u1eb9 d\u00e0y 1\/8\u2033 trong m\u1ed9t V d\u00e0y 1\u2033. B\u1ea1n s\u1ebd th\u1ea5y kho\u1ea3ng 12\u201315 t\u1ea5n m\u1ed7i foot cho b\u1ebb cong kh\u00f4ng kh\u00ed. Tr\u00ean m\u1ed9t ph\u1ea7n d\u00e0i 4\u2032, t\u1ed5ng c\u1ed9ng l\u00e0 48\u201360 t\u1ea5n. N\u1ebfu m\u00e1y b\u1ebb c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 100 t\u1ea5n tr\u00ean 10\u2032, b\u1ea1n \u1ed5n \u2014 mi\u1ec5n l\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang b\u1ebb cong kh\u00f4ng kh\u00ed.<\/td><\/tr>
      So s\u00e1nh \u0110\u00e1y<\/td>B\u00e2y gi\u1edd h\u00e3y nh\u00ecn v\u00e0o s\u1ed1 li\u1ec7u \u0111\u00e1y cho c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp. Ch\u00fang c\u00f3 th\u1ec3 nh\u1ea3y l\u00ean 25\u201330 t\u1ea5n m\u1ed7i foot ho\u1eb7c h\u01a1n. \u0110\u00f3 l\u00e0 g\u1ea5p \u0111\u00f4i. \u0110\u00f4i khi g\u1ea5p ba.<\/td><\/tr>
      D\u1ea5u hi\u1ec7u C\u1ea3nh b\u00e1o<\/td>N\u1ebfu \u0111\u1ed3ng h\u1ed3 t\u1ea5n c\u1ee7a b\u1ea1n t\u0103ng m\u1ea1nh \u1edf \u0111\u00e1y h\u00e0nh tr\u00ecnh, b\u1ea1n kh\u00f4ng c\u00f2n n\u1ed5i gi\u1eefa c\u00e1c vai n\u1eefa. B\u1ea1n \u0111ang \u0111\u1ea9y v\u1eadt li\u1ec7u v\u00e0o c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. \u0110i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 flirt v\u1edbi \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. C\u00f4ng c\u1ee5 s\u1ebd th\u1ea5y t\u1ea3i tr\u1ecdng \u0111\u00f3 tr\u01b0\u1edbc khi b\u1ea1n l\u00e0m.<\/td><\/tr>
      V\u00ed d\u1ee5 v\u1ec1 s\u1ef1 th\u1ea5t b\u1ea1i trong th\u1ef1c t\u1ebf<\/td>Ch\u00fang t\u00f4i \u0111\u00e3 c\u00f3 m\u1ed9t m\u00e1y \u00e9p 90 t\u1ea5n g\u00e3y m\u1ed9t m\u0169i \u0111\u1ee5c ph\u00e2n \u0111o\u1ea1n v\u00ec ai \u0111\u00f3 \u0111\u00e3 gi\u1ea3 \u0111\u1ecbnh \u201cn\u00f3 ch\u1ec9 l\u00e0 11-gauge.\u201d H\u1ecd kh\u00f4ng nh\u1eadn ra r\u1eb1ng V \u0111\u00e3 b\u1ecb nh\u1ecf h\u01a1n v\u00e0 ph\u1ea7n \u0111\u00f3 d\u00e0i 6\u2032. T\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf v\u01b0\u1ee3t qu\u00e1 x\u1ebfp h\u1ea1ng c\u00f4ng c\u1ee5 kho\u1ea3ng 20%. Th\u00e9p kh\u00f4ng quan t\u00e2m \u0111\u1ebfn nh\u1eefng gi\u1ea3 \u0111\u1ecbnh c\u1ee7a b\u1ea1n.<\/td><\/tr>
      Ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n \u0111\u00fang<\/td>T\u00ednh to\u00e1n t\u1ea5n m\u1ed7i foot. Nh\u00e2n v\u1edbi chi\u1ec1u d\u00e0i b\u1ebb cong. So s\u00e1nh v\u1edbi c\u1ea3 c\u00f4ng su\u1ea5t m\u00e1y v\u00e0 x\u1ebfp h\u1ea1ng c\u00f4ng c\u1ee5 \u2014 m\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 c\u00f9ng m\u1ed9t s\u1ed1. Gi\u1eef d\u01b0\u1edbi gi\u1edbi h\u1ea1n t\u1ea5n \u0111\u00e1y m\u1ed9t c\u00e1ch tho\u1ea3i m\u00e1i n\u1ebfu c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c b\u1ebb cong kh\u00f4ng kh\u00ed.<\/td><\/tr>
      Th\u1ef1c h\u00e0nh thi\u1ebft l\u1eadp t\u1ed1t nh\u1ea5t<\/td>\u0110\u1eb7t d\u1eebng \u0111\u1ed9 s\u00e2u d\u1ef1a tr\u00ean g\u00f3c, kh\u00f4ng ph\u1ea3i l\u1ef1c. Theo d\u00f5i \u0111\u1ed3ng h\u1ed3 cho nh\u1eefng c\u00fa nh\u1ea3y b\u1ea5t ng\u1edd. Sau \u0111\u00f3 ch\u1ea1y b\u00e0i vi\u1ebft \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n v\u00e0 \u0111o.<\/td><\/tr>
      K\u1ebft lu\u1eadn<\/td>B\u1edfi v\u00ec m\u1ed9t khi b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn V \u0111\u00fang, kh\u1edbp v\u1edbi m\u0169i \u0111\u1ee5c, nh\u1eafm qua s\u1ef1 h\u1ed3i ph\u1ee5c, v\u00e0 ch\u1ee9ng minh r\u1eb1ng t\u1ea5n l\u00e0 an to\u00e0n, b\u1ea1n kh\u00f4ng c\u00f2n nghi\u1ec1n n\u00e1t kim lo\u1ea1i n\u1eefa.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      B\u1ea1n \u0111ang ki\u1ec3m so\u00e1t n\u00f3.<\/p>\n\n\n\n

      V\u00e0 \u0111\u00f3 l\u00e0 khi b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u \u0111\u1eb7t ra m\u1ed9t c\u00e2u h\u1ecfi th\u00f4ng minh h\u01a1n: khi n\u00e0o th\u00ec u\u1ed1n kh\u00ed kh\u00f4ng c\u00f2n \u0111\u1ee7?<\/p>\n\n\n\n

      Khi u\u1ed1n kh\u00ed th\u1ea5t b\u1ea1i: M\u1ee5c \u0111\u00edch th\u1ef1c s\u1ef1 c\u1ee7a vi\u1ec7c ch\u1ea1m \u0111\u00e1y v\u00e0 u\u1ed1n m\u00e9p<\/h2>\n\n\n\n

      B\u1ea1n \u0111\u00e3 l\u00e0m m\u1ecdi th\u1ee9 \u0111\u00fang \u2014 ch\u1ecdn V 1\u2033 cho A36 1\/8\u2033, kh\u1edbp v\u1edbi b\u00e1n k\u00ednh \u0111\u1ed9t, nh\u1eafm 2\u00b0 qua 90\u00b0, x\u00e1c nh\u1eadn 12\u201315 t\u1ea5n m\u1ed7i foot, v\u00e0 c\u00e1i \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n \u0111\u1ecdc 90\u00b0.<\/p>\n\n\n\n

      V\u1eady khi n\u00e0o th\u00ec u\u1ed1n kh\u00ed kh\u00f4ng c\u00f2n \u0111\u1ee7?<\/p>\n\n\n\n

      Kh\u00f4ng ph\u1ea3i khi b\u1ea1n l\u01b0\u1eddi bi\u1ebfng. Khi dung sai tr\u1edf n\u00ean ch\u1eb7t ch\u1ebd h\u01a1n m\u1ee9c m\u00e0 u\u1ed1n kh\u00ed c\u00f3 th\u1ec3 cung c\u1ea5p cho b\u1ea1n.<\/p>\n\n\n\n

      U\u1ed1n kh\u00ed \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00ec \u0111\u1ed9 s\u00e2u x\u00e2m nh\u1eadp l\u00e0 v\u00f4 l\u0103ng. B\u1ea1n \u0111ang l\u01a1 l\u1eedng gi\u1eefa c\u00e1c vai, d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 \u0111\u00e0n h\u1ed3i, v\u00e0 \u0111i\u1ec1u ch\u1ec9nh theo h\u00e0ng ngh\u00ecn c\u1ee7a h\u00e0nh tr\u00ecnh ram. \u0110\u00f3 l\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a s\u1ef1 linh ho\u1ea1t. Nh\u01b0ng s\u1ef1 linh ho\u1ea1t c\u0169ng l\u00e0 chuy\u1ec3n \u0111\u1ed9ng, v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u00f3 gi\u1edbi h\u1ea1n. Khi b\u1ea3n v\u1ebd ghi \u00b10.25\u00b0 tr\u00ean m\u1ed9t flang 36\u2033, b\u1ea1n kh\u00f4ng c\u00f2n \u0111ang th\u01b0\u01a1ng l\u01b0\u1ee3ng \u2014 b\u1ea1n \u0111ang b\u1ecb ki\u1ec3m to\u00e1n.<\/p>\n\n\n\n

      \u0110\u00f3 l\u00e0 l\u00fac ch\u1ea1m \u0111\u00e1y v\u00e0 u\u1ed1n m\u00e9p xu\u1ea5t hi\u1ec7n. Kh\u00f4ng ph\u1ea3i nh\u01b0 nh\u1eefng n\u00e2ng c\u1ea5p. M\u00e0 l\u00e0 nh\u1eefng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i.<\/p>\n\n\n\n

      Ch\u00fang kh\u00f4ng l\u00e0m b\u1ea1n th\u00f4ng minh h\u01a1n. Ch\u00fang ch\u1ec9 gi\u1ea3m b\u1edbt m\u1ee9c \u0111\u1ed9 suy ngh\u0129 m\u00e0 b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n

      Dung sai ch\u1eb7t ch\u1ebd h\u01a1n \u00b10.5\u00b0: N\u01a1i u\u1ed1n kh\u00ed ch\u1ea1m tr\u1ea7n<\/h3>\n\n\n\n

      Trong u\u1ed1n kh\u00ed s\u1ea1ch, m\u1ed9t s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 d\u00e0y .004\u2033 c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i g\u00f3c c\u1ee7a b\u1ea1n kho\u1ea3ng n\u1eeda \u0111\u1ed9, \u0111\u00f4i khi nhi\u1ec1u h\u01a1n t\u00f9y thu\u1ed9c v\u00e0o chi\u1ec1u r\u1ed9ng V v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eadt li\u1ec7u. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 c\u1ea9u th\u1ea3. \u0110\u00f3 l\u00e0 h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n

      B\u1edfi v\u00ec trong u\u1ed1n kh\u00ed, g\u00f3c \u0111\u1ebfn t\u1eeb \u0111\u1ed9 s\u00e2u. V\u00e0 \u0111\u1ed9 s\u00e2u ph\u1ea3n \u1ee9ng v\u1edbi \u0111\u1ed9 d\u00e0y.<\/p>\n\n\n\n

      N\u1ebfu l\u00f4 t\u1ea5m c\u1ee7a b\u1ea1n thay \u0111\u1ed5i t\u1eeb .119\u2033 \u0111\u1ebfn .123\u2033, tr\u1ee5c trung t\u00ednh c\u1ee7a b\u1ea1n \u2014 \u0111\u01b0\u1eddng t\u01b0\u1edfng t\u01b0\u1ee3ng trong m\u1eb7t c\u1eaft kh\u00f4ng b\u1ecb k\u00e9o d\u00e0i hay n\u00e9n \u2014 d\u1ecbch chuy\u1ec3n m\u1ed9t ch\u00fat. \u0110i\u1ec1u \u0111\u00f3 thay \u0111\u1ed5i l\u01b0\u1ee3ng l\u00f5i \u0111\u00e0n h\u1ed3i c\u00f2n l\u1ea1i sau khi x\u1ea3 t\u1ea3i. \u0110\u1ed9 \u0111\u00e0n h\u1ed3i thay \u0111\u1ed5i. G\u00f3c 92\u00b0 \u0111\u00e3 l\u1eadp tr\u00ecnh c\u1ee7a b\u1ea1n d\u01b0\u1edbi t\u1ea3i c\u00f3 th\u1ec3 b\u1eadt l\u00ean 89.5\u00b0 tr\u00ean m\u1ed9t t\u1ea5m v\u00e0 90.7\u00b0 tr\u00ean t\u1ea5m ti\u1ebfp theo.<\/p>\n\n\n\n

      B\u00e2y gi\u1edd h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t b\u1ea3n v\u1ebd y\u00eau c\u1ea7u 90\u00b0 \u00b10.25\u00b0. B\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ram trong v\u00f2ng .001\u2033 c\u1ee7a \u0111\u1ed9 l\u1eb7p l\u1ea1i. Phanh c\u00f3 th\u1ec3 ho\u00e0n h\u1ea3o. To\u00e1n h\u1ecdc c\u00f3 th\u1ec3 \u0111\u00fang. Nh\u01b0ng ch\u00ednh v\u1eadt li\u1ec7u \u0111ang di chuy\u1ec3n c\u00e1c c\u1ed9t m\u1ed1c.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 xem m\u1ed9t c\u1eadu b\u00e9 c\u1ed1 g\u1eafng gi\u1eef \u00b10.25\u00b0 tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 3\/16\u2033 trong m\u1ed9t V 1\u20111\/4\u2033. C\u1eadu \u1ea5y li\u00ean t\u1ee5c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u .002\u2033 m\u1ed9t l\u1ea7n. C\u00e1c b\u1ed9 ph\u1eadn \u0111i v\u00e0o v\u00e0 ra kh\u1ecfi dung sai su\u1ed1t c\u1ea3 bu\u1ed5i chi\u1ec1u. Ch\u00fang t\u00f4i \u0111\u00e3 b\u1ecf \u0111i 38 gi\u00e1 \u0111\u1ee1 tr\u01b0\u1edbc khi c\u1eadu \u1ea5y hi\u1ec3u r\u1eb1ng \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u00e1y \u2014 \u0111\u00f3 l\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i m\u00e0 u\u1ed1n kh\u00ed l\u1ecbch s\u1ef1 ch\u1ea5p nh\u1eadn.<\/p>\n\n\n\n

      Khi b\u0103ng dung sai h\u1eb9p h\u01a1n s\u1ef1 bi\u1ebfn \u0111\u1ed5i v\u1eadt li\u1ec7u, u\u1ed1n kh\u00ed ch\u1ea1m tr\u1ea7n.<\/p>\n\n\n\n

      V\u1eady \u0111i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu b\u1ea1n ng\u1eebng \u0111\u1ec3 \u0111\u1ed9 s\u00e2u ki\u1ec3m so\u00e1t m\u1ecdi th\u1ee9?<\/p>\n\n\n\n

      Bottoming nh\u01b0 m\u1ed9t s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 m\u1ee9c c\u00f3 ki\u1ec3m so\u00e1t: Trao \u0111\u1ed5i t\u00ednh linh ho\u1ea1t \u0111\u1ec3 l\u1ea5y t\u00ednh l\u1eb7p l\u1ea1i<\/h3>\n\n\n\n

      Bottoming c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u1ed1 t\u00ecnh \u0111\u1ea9y m\u0169i \u0111\u1ed9t cho \u0111\u1ebfn khi v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a khu\u00f4n. Kh\u00f4ng ph\u1ea3i l\u00e0 nghi\u1ec1n ph\u1eb3ng \u2014 \u0111\u00f3 l\u00e0 coining \u2014 m\u00e0 l\u00e0 \u0111\u1eb7t n\u00f3 ch\u1eafc ch\u1eafn v\u00e0o V \u0111\u1ec3 g\u00f3c khu\u00f4n gi\u1edd \u0111\u00e2y tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n\n\n\n

      B\u1ea1n chuy\u1ec3n quy\u1ec1n ki\u1ec3m so\u00e1t t\u1eeb \u0111\u1ed9 s\u00e2u c\u1ee7a ram sang h\u00ecnh h\u1ecdc c\u1ee7a c\u00f4ng c\u1ee5.<\/p>\n\n\n\n

      \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ed9t c\u00e1i phanh c\u0169 v\u1edbi \u0111\u1ed9 l\u1eb7p l\u1ea1i \u0111\u1ed9 s\u00e2u trung b\u00ecnh v\u1eabn c\u00f3 th\u1ec3 gi\u1eef c\u00e1c g\u00f3c ch\u1eb7t trong qu\u00e1 tr\u00ecnh bottoming. Khu\u00f4n tr\u1edf th\u00e0nh ng\u01b0\u1eddi \u0111i\u1ec1u khi\u1ec3n. Khi v\u1eadt li\u1ec7u \u0111\u00e3 ng\u1ed3i ho\u00e0n to\u00e0n, nh\u1eefng thay \u0111\u1ed5i nh\u1ecf v\u1ec1 \u0111\u1ed9 d\u00e0y kh\u00f4ng l\u00e0m thay \u0111\u1ed5i g\u00f3c qu\u00e1 nhi\u1ec1u v\u00ec c\u00e1c b\u1ee9c t\u01b0\u1eddng h\u1ea1n ch\u1ebf n\u00f3.<\/p>\n\n\n\n

      Nh\u01b0ng \u0111\u00e2y l\u00e0 chi ph\u00ed.<\/p>\n\n\n\n

      G\u00f3c \u0111\u1ed9t, g\u00f3c khu\u00f4n v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u c\u1ee7a b\u1ea1n ph\u1ea3i kh\u1edbp g\u1ea7n nh\u01b0 ch\u00ednh x\u00e1c. N\u1ebfu b\u1ea1n \u0111ang u\u1ed1n 90\u00b0 \u1edf 1\/8\u2033, b\u1ea1n c\u1ea7n m\u1ed9t m\u0169i \u0111\u1ed9t 90\u00b0 v\u00e0 m\u1ed9t khu\u00f4n 90\u00b0 \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ee1 cho \u0111\u1ed9 d\u00e0y \u0111\u00f3. Mu\u1ed1n 88\u00b0 thay v\u00e0o \u0111\u00f3? Khu\u00f4n m\u1edbi. \u0110\u1ed9 d\u00e0y kh\u00e1c? C\u00f3 l\u1ebd l\u1ea1i c\u1ea7n khu\u00f4n m\u1edbi.<\/p>\n\n\n\n

      T\u00f4i t\u1eebng chuy\u1ec3n t\u1eeb v\u1eadt li\u1ec7u .120\u2033 sang .135\u2033 gi\u1eefa ch\u1eebng v\u00e0 c\u1ed1 g\u1eafng l\u00e9n l\u00fat s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp bottoming. C\u00e1c g\u00f3c ra 1\u00b0 m\u1edf v\u00ec t\u1ea5m d\u00e0y h\u01a1n kh\u00f4ng th\u1ec3 ng\u1ed3i ho\u00e0n to\u00e0n m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam l\u1ef1c. Ch\u00fang t\u00f4i \u0111\u00e3 \u00e9p n\u00f3. N\u1ee9t m\u1ed9t vai khu\u00f4n m\u00e0 chi ph\u00ed c\u00f2n cao h\u01a1n c\u1ea3 to\u00e0n b\u1ed9 c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n

      Bottoming mang l\u1ea1i cho b\u1ea1n t\u00ednh l\u1eb7p l\u1ea1i b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf t\u00ednh linh ho\u1ea1t. Tuy\u1ec7t v\u1eddi cho 1,000 b\u1ed9 ph\u1eadn gi\u1ed1ng h\u1ec7t nhau. Kh\u1ed5 s\u1edf cho n\u0103m b\u1ed9 ph\u1eadn v\u1edbi c\u00e1c g\u00f3c kh\u00e1c nhau.<\/p>\n\n\n\n

      V\u1eady n\u1ebfu ngay c\u1ea3 bottoming c\u0169ng kh\u00f4ng \u0111\u1ee7 ch\u1eb7t th\u00ec sao?<\/p>\n\n\n\n

      Coining v\u1edbi to\u00e0n b\u1ed9 l\u1ef1c: L\u1ef1a ch\u1ecdn s\u1ee9c m\u1ea1nh th\u00f4 b\u1ea1o lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n s\u1ef1 h\u1ed3i ph\u1ee5c<\/h3>\n\n\n\n

      Coining l\u00e0 n\u01a1i b\u1ea1n ng\u1eebng th\u01b0\u01a1ng l\u01b0\u1ee3ng v\u00e0 vi\u1ebft l\u1ea1i k\u00fd \u1ee9c c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

      B\u1ea1n \u0111\u1ea9y m\u0169i \u0111\u1ed9t v\u00e0o v\u1eadt li\u1ec7u v\u1edbi \u0111\u1ee7 l\u1ef1c \u2014 \u0111\u00f4i khi g\u1ea5p 5 \u0111\u1ebfn 10 l\u1ea7n l\u1ef1c u\u1ed1n kh\u00f4ng kh\u00ed \u2014 \u0111\u1ebfn m\u1ee9c b\u1ea1n n\u00e9n nh\u1ef1a b\u1ec1 m\u1eb7t b\u00ean trong. B\u1ea1n kh\u00f4ng ch\u1ec9 \u0111ang u\u1ed1n n\u1eefa. B\u1ea1n \u0111ang l\u00e0m m\u1ecfng v\u1eadt li\u1ec7u t\u1ea1i \u0111\u01b0\u1eddng u\u1ed1n.<\/p>\n\n\n\n

      S\u1ef1 h\u1ed3i ph\u1ee5c g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng v\u00ec b\u1ea1n \u0111\u00e3 l\u00e0m bi\u1ebfn d\u1ea1ng g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 m\u1eb7t c\u1eaft ngang.<\/p>\n\n\n\n

      G\u00f3c b\u1eb1ng g\u00f3c \u0111\u1ed9t. Th\u1ebf th\u00f4i.<\/p>\n\n\n\n

      Nghe c\u00f3 v\u1ebb ho\u00e0n h\u1ea3o, \u0111\u00fang kh\u00f4ng?<\/p>\n\n\n\n

      \u0110\u00e2y l\u00e0 \u0111i\u1ec1u h\u1ecd kh\u00f4ng n\u00f3i v\u1edbi b\u1ea1n: r\u1eb1ng l\u1ef1c s\u1ebd t\u0103ng nhanh ch\u00f3ng. L\u1ea5y c\u00f9ng m\u1ed9t t\u1ea5m th\u00e9p 1\/8\u2033 c\u1ea7n kho\u1ea3ng 15 t\u1ea5n m\u1ed7i foot trong u\u1ed1n kh\u00f4ng kh\u00ed. Coining c\u00f3 th\u1ec3 y\u00eau c\u1ea7u h\u01a1n 100 t\u1ea5n m\u1ed7i foot t\u00f9y thu\u1ed9c v\u00e0o b\u00e1n k\u00ednh m\u0169i \u0111\u1ed9t v\u00e0 \u0111\u1ed9 m\u1edf c\u1ee7a khu\u00f4n. C\u00f4ng c\u1ee5 c\u1ee7a b\u1ea1n c\u1ea3m nh\u1eadn t\u1eebng ch\u00fat m\u1ed9t.<\/p>\n\n\n\n

      Ch\u00fang t\u00f4i \u0111\u00e3 coining th\u00e9p kh\u00f4ng g\u1ec9 16-gauge m\u1ed9t l\u1ea7n cho m\u1ed9t m\u00e9p 90\u00b0 th\u1ea9m m\u1ef9 ph\u1ea3i n\u1eb1m ho\u00e0n to\u00e0n ph\u1eb3ng. Sau 600 l\u1ea7n \u0111\u1eadp, m\u0169i \u0111\u1ed9t b\u1eaft \u0111\u1ea7u ph\u00ecnh ra. \u0110\u1ebfn 1,200, g\u00f3c \u0111\u00e3 tr\u00f4i \u0111i v\u00ec h\u00ecnh h\u1ecdc c\u00f4ng c\u1ee5 \u0111\u00e3 thay \u0111\u1ed5i. Ph\u01b0\u01a1ng ph\u00e1p \u201cho\u00e0n h\u1ea3o\u201d \u0111\u00e3 t\u1ef1 m\u00e0i m\u00f2n gi\u1eefa ch\u1eebng.<\/p>\n\n\n\n

      V\u00e0 b\u1ea1n \u0111\u00e3 l\u00e0m m\u1ecfng v\u00f9ng u\u1ed1n m\u1ed9t c\u00e1ch v\u0129nh vi\u1ec5n. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn c\u1ea5u tr\u00fac, \u0111i\u1ec1u \u0111\u00f3 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n

      Coining l\u00e0 m\u1ed9t con dao ph\u1eabu thu\u1eadt \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb m\u1ed9t c\u00e1i b\u00faa.<\/p>\n\n\n\n

      V\u1eady b\u00e2y gi\u1edd c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o ch\u00ednh x\u00e1c nh\u1ea5t. M\u00e0 l\u00e0 li\u1ec7u c\u00f4ng vi\u1ec7c c\u00f3 x\u1ee9ng \u0111\u00e1ng v\u1edbi h\u00ecnh ph\u1ea1t hay kh\u00f4ng.<\/p>\n\n\n\n

      M\u00f2n c\u00f4ng c\u1ee5 v\u00e0 th\u1eddi gian thi\u1ebft l\u1eadp: Li\u1ec7u s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i c\u00f3 x\u1ee9ng \u0111\u00e1ng cho k\u00edch th\u01b0\u1edbc l\u00f4 c\u1ee7a b\u1ea1n kh\u00f4ng?<\/h3>\n\n\n\n

      B\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed: m\u1ed9t khu\u00f4n V, nhi\u1ec1u g\u00f3c, thay \u0111\u1ed5i thi\u1ebft l\u1eadp t\u1ed1i thi\u1ec3u. B\u1ea1n \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u v\u00e0 ti\u1ebfp t\u1ee5c. Tu\u1ed5i th\u1ecd c\u00f4ng c\u1ee5 d\u00e0i v\u00ec b\u1ea1n gi\u1eef d\u01b0\u1edbi t\u1ea3i tr\u1ecdng \u0111\u00e1y.<\/p>\n\n\n\n

      B\u1ebb cong \u0111\u00e1y: c\u00f4ng c\u1ee5 theo g\u00f3c c\u1ee5 th\u1ec3, gh\u00e9p n\u1ed1i c\u1ea9n th\u1eadn, t\u1ea3i tr\u1ecdng cao h\u01a1n. Th\u1eddi gian thi\u1ebft l\u1eadp l\u00e2u h\u01a1n. M\u00f2n c\u00f4ng c\u1ee5 t\u0103ng l\u00ean, nh\u01b0ng b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c t\u00ednh l\u1eb7p l\u1ea1i tr\u00ean c\u00e1c l\u00f4 l\u1edbn.<\/p>\n\n\n\n

      B\u1ebb cong: t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a, m\u00f2n c\u00f4ng c\u1ee5 nhanh nh\u1ea5t, \u00edt linh ho\u1ea1t nh\u1ea5t \u2014 nh\u01b0ng g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 \u0111\u1ed9 h\u1ed3i l\u1ea1i.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n \u0111ang ch\u1ea1y 25 gi\u00e1 \u0111\u1ee1 \u1edf ba g\u00f3c kh\u00e1c nhau, b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed lu\u00f4n chi\u1ebfn th\u1eafng. B\u1ea1n s\u1ebd d\u00e0nh nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 thay \u0111\u1ed5i khu\u00f4n \u0111\u00e1y h\u01a1n l\u00e0 th\u1ef1c s\u1ef1 b\u1ebb cong.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n \u0111ang ch\u1ea1y 5.000 thanh inox ph\u1ea3i gi\u1eef \u00b10.25\u00b0 c\u1ea3 ng\u00e0y, b\u1ebb cong \u0111\u00e1y c\u00f3 th\u1ec3 t\u1ef1 tr\u1ea3 cho m\u00ecnh ch\u1ec9 b\u1eb1ng vi\u1ec7c gi\u1ea3m ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n \u0111ang l\u00e0m m\u1ed9t ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n ch\u00ednh x\u00e1c m\u00e0 g\u00f3c ph\u1ea3i ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 h\u1ed3i l\u1ea1i, b\u1ebb cong s\u1ebd c\u00f3 gi\u00e1 tr\u1ecb \u2014 v\u00e0 b\u1ea1n ng\u00e2n s\u00e1ch cho m\u00f2n c\u00f4ng c\u1ee5 nh\u01b0 n\u00f3 l\u00e0 h\u00e0ng ti\u00eau hao.<\/p>\n\n\n\n

      H\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u ngh\u0129 r\u1eb1ng b\u1ebb cong \u0111\u00e1y v\u00e0 b\u1ebb cong l\u00e0 \u201cch\u00ednh x\u00e1c h\u01a1n.\u201d Ch\u00fang kh\u00f4ng ph\u1ea3i. Ch\u00fang h\u1ea1n ch\u1ebf h\u01a1n.<\/p>\n\n\n\n

      B\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed l\u00e0 m\u1eb7c \u0111\u1ecbnh v\u00ec n\u00f3 cho ph\u00e9p b\u1ea1n ki\u1ec3m so\u00e1t v\u1eadt l\u00fd thay v\u00ec \u00e1p \u0111\u1ea3o n\u00f3. B\u1ebb cong \u0111\u00e1y v\u00e0 b\u1ebb cong l\u00e0 nh\u1eefng g\u00ec b\u1ea1n ch\u1ecdn khi b\u1ea3n v\u1ebd, kh\u1ed1i l\u01b0\u1ee3ng, ho\u1eb7c m\u00e1y m\u00f3c bu\u1ed9c b\u1ea1n ph\u1ea3i l\u00e0m nh\u01b0 v\u1eady.<\/p>\n\n\n\n

      V\u00e0 m\u1ed9t khi b\u1ea1n bi\u1ebft ph\u01b0\u01a1ng ph\u00e1p n\u00e0o b\u1ea1n \u0111\u00e3 ch\u1ecdn v\u00e0 t\u1ea1i sao, k\u1ef9 n\u0103ng ti\u1ebfp theo kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ecdn quy tr\u00ecnh.<\/p>\n\n\n\n

      N\u00f3 l\u00e0 \u0111\u1ecdc m\u1ed9t l\u1ea7n b\u1ebb cong x\u1ea5u v\u00e0 truy t\u00ecm l\u1ea1i bi\u1ebfn s\u1ed1 m\u00e0 b\u1ea1n \u0111\u00e3 b\u1ecf l\u1ee1.<\/p>\n\n\n\n

      Ch\u1ea9n \u0111o\u00e1n B\u1ebb Cong X\u1ea5u: \u0110\u1ecdc Ph\u1ea7n \u0110\u1ec3 T\u00ecm Nguy\u00ean Nh\u00e2n Th\u1ef1c S\u1ef1<\/h2>\n\n\n\n

      B\u1ea1n l\u1ea5y m\u1ed9t gi\u00e1 \u0111\u1ee1 A36 d\u00e0i 36\u2033, d\u00e0y 1\/8\u2033 ra kh\u1ecfi m\u00e1y b\u1ebb. \u0110\u1ea7u b\u00ean tr\u00e1i \u0111\u1ecdc 90\u00b0. Gi\u1eefa \u0111\u1ecdc 91\u00b0. \u0110\u1ea7u b\u00ean ph\u1ea3i \u0111\u1ecdc 88.5\u00b0. C\u00f9ng m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh. C\u00f9ng m\u1ed9t c\u00f4ng c\u1ee5. C\u00f9ng m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

      V\u1eady c\u00e1i g\u00ec \u0111\u00e3 th\u1ea5t b\u1ea1i \u2014 gi\u01b0\u1eddng, c\u00f4ng c\u1ee5, v\u1eadt li\u1ec7u, hay ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a b\u1ea1n?<\/p>\n\n\n\n

      Ng\u1eebng \u0111\u1ed5 l\u1ed7i cho m\u00e1y trong n\u0103m ph\u00fat v\u00e0 nh\u00ecn v\u00e0o ph\u1ea7n nh\u01b0 th\u1ec3 n\u00f3 \u0111ang n\u00f3i chuy\u1ec7n v\u1edbi b\u1ea1n. M\u1ed9t l\u1ea7n b\u1ebb cong kh\u00f4ng bao gi\u1edd n\u00f3i d\u1ed1i. N\u00f3 cho b\u1ea1n bi\u1ebft l\u1ef1c \u0111\u00e3 \u0111i \u0111\u00e2u, v\u1eadt li\u1ec7u \u0111\u00e3 kh\u00e1ng l\u1ea1i \u1edf \u0111\u00e2u, v\u00e0 n\u01a1i b\u1ea1n \u0111\u00e3 m\u1ea5t ki\u1ec3m so\u00e1t \u0111\u1ed9 h\u1ed3i l\u1ea1i. C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 l\u00e0m cho n\u00f3 th\u1eb3ng h\u01a1n. C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ecdc c\u00e1c manh m\u1ed1i v\u00e0 truy t\u00ecm ch\u00fang tr\u1edf l\u1ea1i m\u1ed9t bi\u1ebfn s\u1ed1 t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n\n\n\n

      \u0110\u00f3 l\u00e0 c\u00e1ch b\u1ea1n gi\u1eef quy\u1ec1n ki\u1ec3m so\u00e1t b\u1ebb cong b\u1eb1ng kh\u00f4ng kh\u00ed thay v\u00ec \u0111\u1ec3 n\u00f3 tr\u00f4i \u0111i.<\/p>\n\n\n\n

      S\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n v\u1ec1 g\u00f3c d\u1ecdc theo chi\u1ec1u d\u00e0i: C\u00f3 ph\u1ea3i l\u00e0 gi\u01b0\u1eddng, c\u00f4ng c\u1ee5, hay v\u1eadt li\u1ec7u?<\/h3>\n\n\n\n

      H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng l\u1ea1i gi\u00e1 \u0111\u1ee1 36\u2033 \u0111\u00f3. C\u00e1c \u0111\u1ea7u ch\u1eb7t. Trung t\u00e2m m\u1edf ra 1\u00b0.<\/p>\n\n\n\n

      C\u00e2u h\u1ecfi \u0111\u1ea7u ti\u00ean: l\u1ed7i c\u00f3 d\u1ea7n d\u1ea7n v\u00e0 \u1edf gi\u1eefa kh\u00f4ng? \u0110i\u1ec1u \u0111\u00f3 c\u00f3 m\u00f9i nh\u01b0 l\u00e0 s\u1ef1 u\u1ed1n cong. Khi b\u1ea1n t\u1ea3i 12\u201315 t\u1ea5n m\u1ed7i foot b\u1ebb cong 1\/8\u2033 A36 trong m\u1ed9t khu\u00f4n V 1\u2033, b\u1ea1n \u0111ang treo m\u1ed9t l\u1ef1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u1ed9t c\u00e2y c\u1ea7u nh\u1ecf tr\u00ean gi\u01b0\u1eddng. C\u00e1i ram v\u00e0 gi\u01b0\u1eddng s\u1ebd cong l\u00ean \u1edf gi\u1eefa tr\u1eeb khi c\u00f3 b\u00f9 \u0111\u1eafp cho \u0111\u1ed9 cong. \u00cdt \u0111\u1ed9 th\u00e2m nh\u1eadp \u1edf gi\u1eefa c\u00f3 ngh\u0129a l\u00e0 \u00edt \u0111\u1ed9 b\u1ebb cong qu\u00e1 m\u1ee9c, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 nhi\u1ec1u \u0111\u1ed9 h\u1ed3i l\u1ea1i \u1edf \u0111\u00f3. M\u1edf g\u00f3c \u1edf gi\u1eefa m\u1ed7i l\u1ea7n.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 ch\u1ee9ng ki\u1ebfn m\u1ed9t x\u01b0\u1edfng b\u1ecf \u0111i 40 thanh ray tr\u01b0\u1edbc khi ki\u1ec3m tra \u0111\u1ed9 cong. H\u1ecd \u0111\u00e3 li\u00ean t\u1ee5c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u 0.003\u2033 c\u1ed1 g\u1eafng s\u1eeda ch\u1eefa trung t\u00e2m. \u0110i\u1ec1u \u0111\u00f3 ch\u1ec9 l\u00e0m cho c\u00e1c \u0111\u1ea7u b\u1ecb b\u1ebb cong qu\u00e1 m\u1ee9c. M\u1ed9t sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea1n c\u00f4 l\u1eadp n\u00f3? Ch\u1ea1y c\u00f9ng m\u1ed9t ph\u1ea7n, c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp, nh\u01b0ng u\u1ed1n m\u1ed9t m\u1eabu 6\u2033 \u1edf gi\u1eefa m\u00e1y. Sau \u0111\u00f3 u\u1ed1n m\u1ed9t m\u1eabu 6\u2033 kh\u00e1c g\u1ea7n b\u00ean tr\u00e1i. N\u1ebfu c\u00e1c \u0111o\u1ea1n ng\u1eafn kh\u1edbp nhau nh\u01b0ng \u0111o\u1ea1n d\u00e0i th\u00ec kh\u00f4ng, b\u1ea1n \u0111ang nh\u00ecn v\u00e0o s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a khung. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cong. Ki\u1ec3m tra n\u00f3 tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      B\u00e2y gi\u1edd gi\u1ea3 s\u1eed g\u00f3c nghi\u00eang dao \u0111\u1ed9ng ng\u1eabu nhi\u00ean \u2014 ch\u1eb7t, m\u1edf, ch\u1eb7t \u2014 kh\u00f4ng c\u00f3 m\u1eabu n\u00e0o. \u0110\u00f3 th\u01b0\u1eddng l\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. Nh\u1edb khi t\u00f4i n\u00f3i v\u1edbi b\u1ea1n r\u1eb1ng \u0111\u1ed9 s\u00e2u x\u00e2m nh\u1eadp l\u00e0 v\u00f4 l\u0103ng? Trong u\u1ed1n kh\u00f4ng kh\u00ed, g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c c\u1ee7a khu\u00f4n. N\u1ebfu c\u00e1c t\u1ea5m c\u1ee7a b\u1ea1n thay \u0111\u1ed5i t\u1eeb .119\u2033 \u0111\u1ebfn .123\u2033, tr\u1ee5c trung t\u00ednh s\u1ebd d\u1ecbch chuy\u1ec3n v\u00e0 l\u00f5i \u0111\u00e0n h\u1ed3i s\u1ebd thay \u0111\u1ed5i. S\u1ef1 h\u1ed3i ph\u1ee5c c\u0169ng d\u1ecbch chuy\u1ec3n theo.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t \u0111\u1ee9a tr\u1ebb theo \u0111u\u1ed5i \u00b10.25\u00b0 c\u1ea3 bu\u1ed5i chi\u1ec1u tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 3\/16\u2033 v\u00ec n\u00f3 kh\u00f4ng \u0111o \u0111\u1ed9 d\u00e0y c\u1ee7a ch\u1ed3ng. B\u1ed1n ngh\u00ecn \u0111\u1ed9 d\u00e0y \u0111\u00e3 khi\u1ebfn n\u00f3 m\u1ea5t 38 b\u1ed9 ph\u1eadn. M\u1ed9t sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      \u0110o ba v\u1ecb tr\u00ed tr\u00ean t\u1ea5m. N\u1ebfu \u0111\u1ed9 d\u00e0y thay \u0111\u1ed5i, g\u00f3c c\u1ee7a b\u1ea1n s\u1ebd thay \u0111\u1ed5i tr\u1eeb khi b\u1ea1n b\u00f9 \u0111\u1ed9 s\u00e2u theo t\u1ea5m ho\u1eb7c th\u1eaft ch\u1eb7t th\u00f4ng s\u1ed1 v\u1eadt li\u1ec7u. Ki\u1ec3m tra n\u00f3 tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      Kh\u1ea3 n\u0103ng cu\u1ed1i c\u00f9ng: d\u1ee5ng c\u1ee5. N\u1ebfu m\u0169i \u0111\u1ee5c kh\u00f4ng \u0111\u01b0\u1ee3c ng\u1ed3i \u0111\u00fang ch\u1ed7 ho\u1eb7c vai khu\u00f4n b\u1ecb m\u00f2n kh\u00f4ng \u0111\u1ec1u, m\u1ed9t \u0111\u1ea7u c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp s\u00e2u h\u01a1n \u0111\u1ea7u kia. S\u01a1n m\u00e0u xanh l\u00ean \u0111\u1ea7u m\u0169i \u0111\u1ee5c b\u1eb1ng thu\u1ed1c nhu\u1ed9m b\u1ed1 tr\u00ed, th\u1ef1c hi\u1ec7n m\u1ed9t c\u00fa \u0111\u00e1nh nh\u1eb9 v\u00e0 ki\u1ec3m tra m\u1eabu ti\u1ebfp x\u00fac. D\u1ea5u v\u1ebft kh\u00f4ng \u0111\u1ec1u c\u00f3 ngh\u0129a l\u00e0 thi\u1ebft l\u1eadp, kh\u00f4ng ph\u1ea3i v\u1eadt l\u00fd. L\u00e0m s\u1ea1ch, \u0111\u1eb7t l\u1ea1i, k\u1eb9p l\u1ea1i. Ki\u1ec3m tra n\u00f3 tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      B\u1ea1n th\u1ea5y m\u1eabu kh\u00f4ng? B\u1ea1n kh\u00f4ng \u0111o\u00e1n. B\u1ea1n c\u00f4 l\u1eadp.<\/p>\n\n\n\n

      Nh\u01b0ng n\u1ebfu g\u00f3c \u0111\u00fang v\u00e0 kim lo\u1ea1i b\u1ecb n\u1ee9t th\u00ec sao?<\/p>\n\n\n\n

      N\u1ee9t \u1edf \u0111\u01b0\u1eddng u\u1ed1n: H\u01b0\u1edbng h\u1ea1t, b\u00e1n k\u00ednh u\u1ed1n, ho\u1eb7c c\u1ea3 hai?<\/h3>\n\n\n\n

      L\u1ea5y m\u1ed9t d\u1ea3i th\u00e9p kh\u00f4ng g\u1ec9 3\/32\u2033. U\u1ed1n n\u00f3 90\u00b0 theo h\u01b0\u1edbng h\u1ea1t trong m\u1ed9t V 1\/2\u2033 v\u1edbi b\u00e1n k\u00ednh m\u0169i \u0111\u1ee5c s\u1eafc n\u00e9t kho\u1ea3ng 1\/32\u2033. B\u1ea1n s\u1ebd nghe th\u1ea5y n\u00f3 tr\u01b0\u1edbc khi th\u1ea5y n\u00f3 \u2014 \u00e2m thanh r\u00e1ch nh\u1eb9. Sau \u0111\u00f3, v\u1ebft n\u1ee9t m\u1ea3nh xu\u1ea5t hi\u1ec7n tr\u00ean b\u1ec1 m\u1eb7t b\u00ean ngo\u00e0i.<\/p>\n\n\n\n

      Chuy\u1ec7n g\u00ec \u0111\u00e3 x\u1ea3y ra?<\/p>\n\n\n\n

      Khi b\u1ea1n u\u1ed1n, b\u00ean trong b\u1ecb n\u00e9n v\u00e0 b\u00ean ngo\u00e0i b\u1ecb k\u00e9o d\u00e0i. C\u00e0ng ch\u1eb7t b\u00e1n k\u00ednh b\u00ean trong, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i c\u00e0ng k\u00e9o d\u00e0i nhi\u1ec1u h\u01a1n. N\u1ebfu b\u00e1n k\u00ednh m\u0169i \u0111\u1ee5c c\u1ee7a b\u1ea1n nh\u1ecf h\u01a1n m\u1ee9c m\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng, b\u1ea1n s\u1ebd v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a n\u00f3. U\u1ed1n theo h\u01b0\u1edbng h\u1ea1t l\u00e0m cho t\u00ecnh h\u00ecnh t\u1ed3i t\u1ec7 h\u01a1n v\u00ec h\u01b0\u1edbng h\u1ea1t \u0111\u00e3 cu\u1ed9n c\u00f3 c\u1ea5u tr\u00fac k\u00e9o d\u00e0i. B\u1ea1n \u0111ang k\u00e9o n\u00f3 theo c\u00e1ch kh\u00f3 kh\u0103n.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 t\u1eebng lo\u1ea1i b\u1ecf m\u1ed9t gi\u00e1 \u0111\u1ee1 th\u00e9p kh\u00f4ng g\u1ec9 3\/32\u2033 ho\u00e0n to\u00e0n v\u00ec ch\u00fang t\u00f4i \u0111\u00e3 u\u1ed1n vu\u00f4ng g\u00f3c v\u1edbi h\u1ea1t v\u1edbi m\u0169i \u0111\u1ee5c qu\u00e1 s\u1eafc. B\u1ea3n in kh\u00f4ng ch\u1ec9 ra h\u01b0\u1edbng h\u1ea1t. Ch\u00fang t\u00f4i \u0111\u00e3 gi\u1ea3 \u0111\u1ecbnh. Gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 \u0111\u00e3 t\u1ed1n c\u1ee7a ch\u00fang t\u00f4i m\u1ed9t tu\u1ea7n. M\u1ed9t sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      Ch\u1ea9n \u0111o\u00e1n r\u1ea5t \u0111\u01a1n gi\u1ea3n. \u0110o b\u00e1n k\u00ednh b\u00ean trong c\u1ee7a b\u1ea1n. Trong u\u1ed1n kh\u00f4ng kh\u00ed, b\u00e1n k\u00ednh b\u00ean trong kho\u1ea3ng 16% c\u1ee7a l\u1ed7 khu\u00f4n cho th\u00e9p nh\u1eb9. V\u00ec v\u1eady, m\u1ed9t V 1\u2033 cho kho\u1ea3ng b\u00e1n k\u00ednh b\u00ean trong l\u00e0 .160\u2033. \u0110i ch\u1eb7t h\u01a1n \u2014 n\u00f3i l\u00e0 m\u1ed9t V 1\/2\u2033 \u2014 v\u00e0 b\u1ea1n \u0111ang \u0111\u00f9a v\u1edbi vi\u1ec7c ch\u1ea1m \u0111\u00e1y v\u00e0 bu\u1ed9c ph\u1ea3i c\u00f3 b\u00e1n k\u00ednh nh\u1ecf h\u01a1n. Th\u1ef1c t\u1ebf b\u1ea1n \u0111ang \u0111\u00f9a v\u1edbi vi\u1ec7c ch\u1ea1m \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n \u2014 v\u00e0 \u0111i\u1ec1u \u0111\u00f3 l\u00e0m t\u0103ng c\u0103ng th\u1eb3ng \u1edf b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

      Xoay m\u1ed9t t\u1ea5m ph\u1eb3ng 90\u00b0 v\u00e0 u\u1ed1n l\u1ea1i. N\u1ebfu c\u00e1c v\u1ebft n\u1ee9t bi\u1ebfn m\u1ea5t theo h\u01b0\u1edbng h\u1ea1t, b\u1ea1n \u0111\u00e3 t\u00ecm ra th\u1ee7 ph\u1ea1m. N\u1ebfu kh\u00f4ng, m\u1edf khu\u00f4n V m\u1ed9t k\u00edch th\u01b0\u1edbc v\u00e0 t\u0103ng b\u00e1n k\u00ednh b\u00ean trong. Ki\u1ec3m tra n\u00f3 tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      C\u00e1c v\u1ebft n\u1ee9t kh\u00f4ng bao gi\u1edd ng\u1eabu nhi\u00ean. Ch\u00fang l\u00e0 s\u1ef1 c\u0103ng th\u1eb3ng v\u01b0\u1ee3t qu\u00e1 \u0111\u1ed9 d\u1ebbo. C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n l\u00e0 gi\u1ea3m c\u0103ng th\u1eb3ng ho\u1eb7c thay \u0111\u1ed5i h\u01b0\u1edbng.<\/p>\n\n\n\n

      B\u00e2y gi\u1edd th\u00ec sao v\u1ec1 m\u1ed9t b\u1ed9 ph\u1eadn kh\u00f4ng b\u1ecb n\u1ee9t v\u00e0 kh\u00f4ng thay \u0111\u1ed5i g\u00f3c \u2014 n\u00f3 ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng cho ph\u00e9p b\u1ea1n th\u1ef1c hi\u1ec7n u\u1ed1n th\u1ee9 hai?<\/p>\n\n\n\n

      C\u00e1i b\u1eaby chu\u1ed7i: T\u1ea1i sao u\u1ed1n m\u00e9p g\u1ea7n nh\u1ea5t tr\u01b0\u1edbc ti\u00ean khi\u1ebfn u\u1ed1n th\u1ee9 hai v\u1ec1 m\u1eb7t v\u1eadt l\u00fd tr\u1edf n\u00ean kh\u00f4ng th\u1ec3<\/h3>\n\n\n\n

      H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t k\u00eanh: web 2\u2033, m\u00e9p 1\u2033 \u1edf c\u1ea3 hai b\u00ean, d\u00e0y 1\/8\u2033. B\u1ea1n u\u1ed1n m\u1ed9t m\u00e9p 1\u2033 l\u00ean 90\u00b0 trong m\u1ed9t V 1\u2033. S\u1ea1ch s\u1ebd. Sau \u0111\u00f3, b\u1ea1n l\u1eadt n\u00f3 \u0111\u1ec3 u\u1ed1n m\u00e9p \u0111\u1ed1i di\u1ec7n.<\/p>\n\n\n\n

      M\u00e9p \u0111\u00e3 u\u1ed1n tr\u01b0\u1edbc \u0111\u00f3 ch\u1ea1m v\u00e0o th\u00e2n m\u0169i \u0111\u1ee5c tr\u01b0\u1edbc khi u\u1ed1n th\u1ee9 hai \u0111\u1ea1t 90\u00b0. B\u1ea1n d\u1eebng l\u1ea1i \u1edf 75\u00b0. M\u00e1y kh\u00f4ng y\u1ebfu. H\u00ecnh h\u1ecdc \u0111ang ch\u1eb7n b\u1ea1n.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t th\u1ef1c t\u1eadp sinh c\u1ed1 g\u1eafng l\u00e0m \u0111i\u1ec1u \u0111\u00f3, ngh\u0129 r\u1eb1ng tr\u1ecdng l\u01b0\u1ee3ng s\u1ebd kh\u1eafc ph\u1ee5c kho\u1ea3ng c\u00e1ch. Anh ta \u0111\u00e3 \u0111\u1ea9y m\u1ea1nh h\u01a1n. \u0110\u00e1nh d\u1ea5u vai m\u0169i \u0111\u1ee5c v\u00e0 l\u00e0m bi\u1ebfn d\u1ea1ng m\u00e9p \u0111\u1ea7u ti\u00ean. Hai b\u1ed9 ph\u1eadn b\u1ecb h\u1ecfng tr\u01b0\u1edbc khi ch\u00fang t\u00f4i ng\u0103n anh ta l\u1ea1i. M\u1ed9t sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      V\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1c. \u0110\u00f3 l\u00e0 th\u1ee9 t\u1ef1 v\u00e0 kho\u1ea3ng c\u00e1ch c\u00f4ng c\u1ee5. Trong u\u1ed1n kh\u00f4ng kh\u00ed, c\u00fa \u0111\u1ea5m c\u00f3 m\u1ed9t chi\u1ec1u r\u1ed9ng th\u00e2n. N\u1ebfu m\u00e9p tr\u1ea3 l\u1ea1i qu\u00e1 g\u1ea7n, n\u00f3 va ch\u1ea1m tr\u01b0\u1edbc khi th\u00e2m nh\u1eadp ho\u00e0n to\u00e0n. H\u00e3y nh\u1edb: n\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n. N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 s\u00e2u, b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c.<\/p>\n\n\n\n

      S\u1eeda n\u00f3 b\u1eb1ng c\u00e1ch u\u1ed1n m\u00e9p xa nh\u1ea5t tr\u01b0\u1edbc, ho\u1eb7c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t c\u00fa \u0111\u1ea5m c\u1ed5 ng\u1ed7ng v\u1edbi kho\u1ea3ng c\u00e1ch h\u1ecdng. \u0110\u1eb7t ph\u1ea7n v\u00e0o c\u00fa \u0111\u1ea5m tr\u01b0\u1edbc khi chu k\u1ef3 v\u00e0 ki\u1ec3m tra v\u1eadt l\u00fd \u0111\u1ec3 xem c\u00f3 va ch\u1ea1m kh\u00f4ng. N\u1ebfu th\u00e9p ch\u1ea1m v\u00e0o th\u00e9p \u1edf n\u01a1i kh\u00f4ng n\u00ean, kh\u00f4ng c\u00f3 l\u01b0\u1ee3ng tonnage n\u00e0o c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c. H\u00e3y th\u1eed nghi\u1ec7m tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      M\u1ed7i l\u1ea7n u\u1ed1n x\u1ea5u \u0111\u1ec1u r\u01a1i v\u00e0o m\u1ed9t trong ba nguy\u00ean nh\u00e2n: ph\u00e2n ph\u1ed1i l\u1ef1c, h\u00e0nh vi v\u1eadt li\u1ec7u, ho\u1eb7c s\u1ef1 can thi\u1ec7p h\u00ecnh h\u1ecdc. Ph\u1ea7n \u0111\u00f3 cho b\u1ea1n bi\u1ebft nguy\u00ean nh\u00e2n n\u00e0o \u2014 n\u1ebfu b\u1ea1n ng\u1eebng \u0111\u1ed1i x\u1eed v\u1edbi phanh nh\u01b0 m\u1ed9t c\u00e1i b\u00faa v\u00e0 b\u1eaft \u0111\u1ea7u \u0111\u1ed1i x\u1eed v\u1edbi th\u00e9p nh\u01b0 m\u1ed9t c\u00e1i l\u00f2 xo m\u00e0 b\u1ea1n \u0111ang th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n

      V\u00e0 m\u1ed9t khi b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc nh\u1eefng manh m\u1ed1i \u0111\u00f3 m\u00e0 kh\u00f4ng ho\u1ea3ng s\u1ee3, b\u1ea1n s\u1ebd ng\u1eebng ph\u1ea3n \u1ee9ng v\u1edbi nh\u1eefng l\u1ea7n u\u1ed1n x\u1ea5u.<\/p>\n\n\n\n

      B\u1ea1n b\u1eaft \u0111\u1ea7u d\u1ef1 \u0111o\u00e1n ch\u00fang.<\/p>\n\n\n\n

      M\u00f4 h\u00ecnh T\u00e2m l\u00fd \u201cU\u1ed1n qu\u00e1\u201d cho Ca l\u00e0m vi\u1ec7c ti\u1ebfp theo c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n

      B\u1ea1n mu\u1ed1n nh\u1eefng l\u1ea7n u\u1ed1n kh\u00f4ng l\u00e0m b\u1ea1n ng\u1ea1c nhi\u00ean?<\/p>\n\n\n\n

      V\u1eady th\u00ec h\u00e3y ng\u1eebng c\u1ed1 g\u1eafng \u0111\u1ea1t 90\u00b0.<\/p>\n\n\n\n

      Th\u00e1ng tr\u01b0\u1edbc, ch\u00fang t\u00f4i \u0111\u00e3 ch\u1ea1y th\u00e9p A36 d\u00e0y 1\/8\u2033 trong m\u1ed9t V d\u00e0y 1\u2033. C\u00e1i \u0111\u1ea7u ti\u00ean \u0111\u1ecdc 90\u00b0. C\u1eadu b\u00e9 m\u1ec9m c\u01b0\u1eddi. K\u00e9o ra, ki\u1ec3m tra l\u1ea1i n\u0103m ph\u00fat sau \u2014 91.5\u00b0. Th\u00e9p \u0111\u00e3 th\u01b0 gi\u00e3n. C\u1eadu ngh\u0129 m\u00e1y \u0111\u00e3 tr\u00f4i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u th\u00eam 0.010\u2033. Gi\u1edd th\u00ec n\u00f3 ra \u1edf 88.5\u00b0 sau khi h\u1ed3i ph\u1ee5c. Ba ph\u1ea7n r\u1ed3i v\u00e0 ch\u00fang t\u00f4i \u0111ang \u0111u\u1ed5i theo nh\u1eefng b\u00f3ng ma.<\/p>\n\n\n\n

      Sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      B\u1ea1n kh\u00f4ng \u0111ang t\u1ea1o ra m\u1ed9t l\u1ea7n u\u1ed1n 90\u00b0. B\u1ea1n \u0111ang u\u1ed1n \u0111\u1ebfn 92\u00b0 \u0111\u1ec3 n\u00f3 th\u01b0 gi\u00e3n tr\u1edf l\u1ea1i 90\u00b0. \u0110\u00f3 l\u00e0 m\u00f4 h\u00ecnh t\u00e2m l\u00fd u\u1ed1n qu\u00e1. B\u1ea1n kh\u00f4ng ch\u1ed1ng l\u1ea1i s\u1ef1 h\u1ed3i ph\u1ee5c. B\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch cho n\u00f3.<\/p>\n\n\n\n

      V\u00e0 m\u1ed9t khi b\u1ea1n ch\u1ea5p nh\u1eadn \u0111i\u1ec1u \u0111\u00f3, c\u00e2u h\u1ecfi thi\u1ebft l\u1eadp s\u1ebd thay \u0111\u1ed5i.<\/p>\n\n\n\n

      B\u1ea1n kh\u00f4ng \u0111ang \u201ct\u1ea1o ra m\u1ed9t g\u00f3c\u201d \u2014 b\u1ea1n \u0111ang qu\u1ea3n l\u00fd h\u00e0nh vi v\u1eadt li\u1ec7u.<\/h3>\n\n\n\n

      Th\u00e9p l\u00e0 m\u1ed9t c\u00e1i l\u00f2 xo v\u1edbi m\u1ed9t \u0111i\u1ec3m ch\u1ea3y. \u0110\u1ebfn \u0111i\u1ec3m ch\u1ea3y, n\u00f3 u\u1ed1n cong v\u00e0 tr\u1edf l\u1ea1i. V\u01b0\u1ee3t qua \u0111i\u1ec3m ch\u1ea3y, n\u00f3 gi\u1eef nguy\u00ean h\u00ecnh d\u1ea1ng \u2014 nh\u01b0ng l\u00f5i \u0111\u00e0n h\u1ed3i b\u00ean trong v\u1eabn mu\u1ed1n m\u1edf ra. S\u1ef1 m\u1edf ra \u0111\u00f3 l\u00e0 s\u1ef1 h\u1ed3i ph\u1ee5c.<\/p>\n\n\n\n

      Trong u\u1ed1n kh\u00f4ng kh\u00ed, c\u00fa \u0111\u1ea5m kh\u00f4ng \u0111\u00f3ng d\u1ea5u g\u00f3c v\u00e0o khu\u00f4n. N\u00f3 \u0111\u1ea9y v\u1eadt li\u1ec7u xu\u1ed1ng V, v\u00e0 g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i \u2014 kh\u00f4ng ph\u1ea3i b\u1edfi g\u00f3c khu\u00f4n. \u0110\u1ed9 s\u00e2u \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh b\u1ea1n \u0111\u1ea9y c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i xa bao nhi\u00eau tr\u01b0\u1edbc khi b\u1ea1n th\u1ea3 tay.<\/p>\n\n\n\n

      V\u1eady n\u00ean m\u1ee5c ti\u00eau th\u1ef1c s\u1ef1 c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 90\u00b0. N\u00f3 l\u00e0 90\u00b0 c\u1ed9ng v\u1edbi b\u1ea5t k\u1ef3 \u0111\u1ed9 h\u1ed3i ph\u1ee5c n\u00e0o c\u1ee7a l\u00f4 v\u1eadt li\u1ec7u n\u00e0y trong khe V n\u00e0y.<\/p>\n\n\n\n

      V\u00ed d\u1ee5 gi\u1ea3 thuy\u1ebft: th\u00e9p nh\u1eb9 d\u00e0y 0.125\u2033 trong m\u1ed9t V d\u00e0y 1\u2033 c\u00f3 th\u1ec3 h\u1ed3i ph\u1ee5c t\u1eeb 1.5\u00b0 \u0111\u1ebfn 2\u00b0. Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f9ng \u0111\u1ed9 d\u00e0y trong c\u00f9ng m\u1ed9t V c\u00f3 th\u1ec3 h\u1ed3i ph\u1ee5c 3\u00b0 ho\u1eb7c h\u01a1n. C\u00f9ng m\u1ed9t m\u00e1y. C\u00f9ng m\u1ed9t khu\u00f4n. H\u00e0nh vi kh\u00e1c nhau.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh cho \u0111\u1ebfn khi \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u1ecdc 90\u00b0 d\u01b0\u1edbi \u00e1p l\u1ef1c, b\u1ea1n \u0111ang t\u1ef1 \u0111\u1eb7t m\u00ecnh v\u00e0o t\u00ecnh th\u1ebf m\u1edf sau khi th\u1ea3. \u0110\u00f3 l\u00e0 suy ngh\u0129 c\u1ee7a ng\u01b0\u1eddi m\u1edbi \u2014 nghi\u1ec1n n\u00e1t kim lo\u1ea1i \u0111\u1ec3 ph\u1ee5c t\u00f9ng.<\/p>\n\n\n\n

      T\u00f4i t\u1eebng th\u1ea5y m\u1ed9t ng\u01b0\u1eddi c\u1ed1 g\u1eafng \u201cgi\u1ebft\u201d s\u1ef1 h\u1ed3i ph\u1ee5c b\u1eb1ng c\u00e1ch t\u0103ng tonnage cho \u0111\u1ebfn khi anh ta ch\u1ea1m v\u00e0o vai khu\u00f4n. Nh\u1eefng g\u00ec b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang l\u00e0m l\u00e0 t\u00e1n t\u1ec9nh v\u1edbi vi\u1ec7c ch\u1ea1m \u0111\u00e1y \u2014 bu\u1ed9c v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng khu\u00f4n. Anh ta \u0111\u00e3 \u0111\u1ec3 l\u1ea1i hai \u0111\u01b0\u1eddng s\u00e1ng b\u00f3ng v\u00e0 m\u1ed9t thay \u0111\u1ed5i b\u00e1n k\u00ednh nh\u1eb9 l\u00e0m h\u1ecfng 24 t\u1ea5m panel th\u1ea9m m\u1ef9.<\/p>\n\n\n\n

      Sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      V\u1eady \u0111\u00e2y l\u00e0 s\u1ef1 thay \u0111\u1ed5i: quy\u1ebft \u0111\u1ecbnh u\u1ed1n qu\u00e1 c\u00f3 ch\u1ee7 \u00fd c\u1ee7a b\u1ea1n tr\u01b0\u1edbc khi l\u00e0m ph\u1ea7n th\u1ef1c \u0111\u1ea7u ti\u00ean. Kh\u00f4ng ph\u1ea3i b\u1eb1ng c\u00e1ch \u0111o\u00e1n. B\u1eb1ng c\u00e1ch ch\u1ee9ng minh n\u00f3. Tr\u00ean ph\u1ebf li\u1ec7u.<\/p>\n\n\n\n

      Th\u00f3i quen s\u1eed d\u1ee5ng phi\u1ebfu ki\u1ec3m tra t\u00e1ch bi\u1ec7t nh\u1eefng ng\u01b0\u1eddi v\u1eadn h\u00e0nh nh\u1ea5t qu\u00e1n v\u1edbi nh\u1eefng ng\u01b0\u1eddi may m\u1eafn<\/h3>\n\n\n\n

      B\u1ea1n kh\u00f4ng h\u1ecdc \u0111\u01b0\u1ee3c \u0111\u1ed9 h\u1ed3i l\u1ea1i t\u1eeb m\u1ed9t bi\u1ec3u \u0111\u1ed3 d\u00e1n tr\u00ean t\u01b0\u1eddng. B\u1ea1n h\u1ecdc n\u00f3 t\u1eeb m\u1ed9t phi\u1ebfu d\u00e0i 4 inch c\u1eaft t\u1eeb c\u00f9ng m\u1ed9t t\u1ea5m m\u00e0 b\u1ea1n s\u1eafp ch\u1ea1y.<\/p>\n\n\n\n

      C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng h\u01b0\u1edbng v\u00e2n. C\u00f9ng d\u1ee5ng c\u1ee5. C\u00f9ng v\u1ecb tr\u00ed m\u00e1y.<\/p>\n\n\n\n

      Th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n. \u0110o sau khi th\u1ea3. N\u1ebfu b\u1ea1n c\u1ea7n 90\u00b0 v\u00e0 n\u00f3 ra 91.8\u00b0, b\u1ea1n \u0111ang m\u1edf 1.8\u00b0. T\u0103ng \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp m\u1ed9t ch\u00fat \u2014 ch\u00fang ta \u0111ang n\u00f3i v\u1ec1 .005\u2033 \u0111\u1ebfn .010\u2033 tr\u00ean v\u1eadt li\u1ec7u m\u1ecfng \u2014 v\u00e0 th\u1ef1c hi\u1ec7n m\u1ed9t phi\u1ebfu kh\u00e1c.<\/p>\n\n\n\n

      \u0110o l\u1ea1i.<\/p>\n\n\n\n

      Khi n\u00f3 th\u01b0 gi\u00e3n v\u1ec1 90\u00b0, ng\u1eebng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u. Kh\u00f3a l\u1ea1i. Ch\u1ea1y s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

      Chi\u1ebfc phi\u1ebfu nh\u1ecf \u0111\u00f3 v\u1eeba cho b\u1ea1n bi\u1ebft thu\u1ebf h\u1ed3i l\u1ea1i cho v\u1eadt li\u1ec7u n\u00e0y trong c\u1ea5u h\u00ecnh n\u00e0y. Tr\u1ea3 n\u00f3 m\u1ed9t l\u1ea7n, \u1edf ph\u00eda tr\u01b0\u1edbc.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 th\u1ea5y c\u00e1c x\u01b0\u1edfng b\u1ecf qua \u0111i\u1ec1u n\u00e0y v\u00ec \u201cch\u00fang t\u00f4i \u0111\u00e3 ch\u1ea1y c\u00f4ng vi\u1ec7c \u0111\u00f3 th\u00e1ng tr\u01b0\u1edbc.\u201d L\u00f4 nhi\u1ec7t kh\u00e1c. \u0110\u1ed9 d\u00e0y n\u1eb7ng h\u01a1n .003\u2033 l\u1ea7n n\u00e0y. H\u1ecd \u0111\u00e3 b\u1ecf \u0111i 60 gi\u00e1 \u0111\u1ee1 tr\u01b0\u1edbc khi th\u1eeba nh\u1eadn r\u1eb1ng c\u00e0i \u0111\u1eb7t c\u1ee7a h\u00f4m qua kh\u00f4ng u\u1ed1n \u0111\u01b0\u1ee3c th\u00e9p h\u00f4m nay.<\/p>\n\n\n\n

      Sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      C\u00e1c phi\u1ebfu c\u00f3 th\u1eddi gian s\u1eed d\u1ee5ng kho\u1ea3ng m\u1ed9t l\u00f4. Xe \u0111\u1ea9y m\u1edbi? Ki\u1ec3m tra m\u1edbi. V\u00e0 b\u1ea1n lu\u00f4n x\u00e1c minh sau khi th\u1ea3, kh\u00f4ng ph\u1ea3i d\u01b0\u1edbi t\u1ea3i.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n mu\u1ed1n nh\u1eefng \u0111\u01b0\u1eddng cong c\u00f3 th\u1ec3 \u0111o\u00e1n tr\u01b0\u1edbc, h\u00e3y ch\u1ee9ng minh \u0111\u1ed9 u\u1ed1n qu\u00e1 tr\u01b0\u1edbc \u2014 sau \u0111\u00f3 b\u1ea3o v\u1ec7 n\u00f3.<\/p>\n\n\n\n

      \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn kho\u1ea3nh kh\u1eafc th\u1ef1c s\u1ef1 quan tr\u1ecdng.<\/p>\n\n\n\n

      M\u1ed9t danh s\u00e1ch ki\u1ec3m tra quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n tr\u01b0\u1edbc khi b\u1ea1n nh\u1ea5n b\u00e0n \u0111\u1ea1p<\/h3>\n\n\n\n

      Tr\u01b0\u1edbc khi ch\u00e2n b\u1ea1n di chuy\u1ec3n, h\u00e3y h\u1ecfi ba \u0111i\u1ec1u.<\/p>\n\n\n\n

      M\u1ed9t: \u0110\u1ed9 h\u1ed3i l\u1ea1i mong \u0111\u1ee3i c\u1ee7a t\u00f4i cho v\u1eadt li\u1ec7u n\u00e0y v\u00e0 \u0111\u1ed9 m\u1edf V l\u00e0 g\u00ec? N\u1ebfu b\u1ea1n kh\u00f4ng bi\u1ebft, b\u1ea1n \u0111ang \u0111o\u00e1n. C\u1eaft m\u1ed9t phi\u1ebfu.<\/p>\n\n\n\n

      Hai: M\u00e1y c\u1ee7a t\u00f4i c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp trong v\u00e0i ph\u1ea7n ngh\u00ecn kh\u00f4ng? G\u00f3c u\u1ed1n kh\u00f4ng kh\u00ed s\u1ed1ng v\u00e0 ch\u1ebft d\u1ef1a v\u00e0o ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u. Tr\u00ean v\u1eadt li\u1ec7u m\u1ecfng 0.060\u2033, .005\u2033 c\u1ee7a h\u00e0nh tr\u00ecnh th\u00eam c\u00f3 th\u1ec3 l\u00e0m b\u1ea1n l\u1ec7ch m\u1ed9t \u0111\u1ed9. C\u00e1c m\u00e1y u\u1ed1n c\u0169 v\u1edbi \u0111i\u1ec3m d\u1eebng l\u1ecfng l\u1ebbo c\u00f3 th\u1ec3 l\u00e0m cho u\u1ed1n kh\u00f4ng kh\u00ed tr\u00f4ng \u201ckh\u00f4ng nh\u1ea5t qu\u00e1n\u201d khi th\u1ef1c t\u1ebf l\u00e0 do s\u1ef1 ch\u01a1i c\u01a1 kh\u00ed. N\u1ebfu m\u00e1y u\u1ed1n c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 l\u1eb7p l\u1ea1i \u0111\u1ed9 s\u00e2u, b\u1ea1n ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh k\u1ef3 v\u1ecdng ho\u1eb7c ch\u1ecdn u\u1ed1n \u0111\u00e1y v\u00e0 ch\u1ea5p nh\u1eadn t\u1ea3i tr\u1ecdng.<\/p>\n\n\n\n

      Ba: Li\u1ec7u \u0111\u1ed9 dung sai n\u00e0y c\u00f3 bi\u1ec7n minh cho u\u1ed1n kh\u00f4ng kh\u00ed kh\u00f4ng? Quy t\u1eafc ng\u00f3n tay c\u00e1i trong ng\u00e0nh \u2014 u\u1ed1n kh\u00f4ng kh\u00ed x\u1eed l\u00fd kho\u1ea3ng 90% c\u00f4ng vi\u1ec7c r\u1ea5t t\u1ed1t. Nh\u01b0ng n\u1ebfu b\u1ea3n v\u1ebd y\u00eau c\u1ea7u \u00b10.5\u00b0 tr\u00ean v\u1eadt li\u1ec7u m\u1ecfng v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u thay \u0111\u1ed5i \u00b1.005\u2033, h\u00e3y hi\u1ec3u nh\u1eefng g\u00ec b\u1ea1n \u0111ang k\u00fd k\u1ebft. U\u1ed1n kh\u00f4ng kh\u00ed chuy\u1ec3n giao tr\u00e1ch nhi\u1ec7m ch\u00ednh x\u00e1c cho b\u1ea1n v\u00e0 v\u1eadt li\u1ec7u. U\u1ed1n \u0111\u00e1y ti\u00eau t\u1ed1n t\u1ea3i tr\u1ecdng \u0111\u1ec3 lo\u1ea1i b\u1ecf bi\u1ebfn \u0111\u1ed5i ra kh\u1ecfi ph\u01b0\u01a1ng tr\u00ecnh.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 t\u1eebng th\u1ea5y 200 t\u1ea5m panel th\u1ea9m m\u1ef9 b\u1ecb h\u01b0 h\u1ea1i v\u00ec ai \u0111\u00f3 ch\u1ecdn u\u1ed1n \u0111\u1ec3 \u201c\u0111\u1ea3m b\u1ea3o g\u00f3c.\u201d T\u1ea3i tr\u1ecdng g\u1ea5p ba l\u1ea7n so v\u1edbi u\u1ed1n kh\u00f4ng kh\u00ed c\u1ea7n thi\u1ebft. D\u1ee5ng c\u1ee5 \u0111\u00e3 \u0111\u1ec3 l\u1ea1i d\u1ea5u tr\u00ean m\u1ecdi b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

      Sai l\u1ea7m t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

      V\u1eady \u0111\u00e2y l\u00e0 c\u00e1ch nh\u00ecn m\u00e0 t\u00f4i mu\u1ed1n b\u1ea1n mang theo v\u00e0o ca l\u00e0m vi\u1ec7c ti\u1ebfp theo:<\/p>\n\n\n\n

      B\u1ea1n kh\u00f4ng \u0111ang \u0111i\u1ec1u khi\u1ec3n th\u00e9p. B\u1ea1n \u0111ang th\u01b0\u01a1ng l\u01b0\u1ee3ng v\u1edbi m\u1ed9t l\u00f2 xo. B\u1ea1n u\u1ed1n v\u01b0\u1ee3t qua m\u1ee5c ti\u00eau c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch. B\u1ea1n x\u00e1c minh tr\u00ean ph\u1ebf li\u1ec7u. B\u1ea1n kh\u00f3a \u0111\u1ed9 s\u00e2u, kh\u00f4ng ph\u1ea3i hy v\u1ecdng.<\/p>\n\n\n\n

      Khi b\u1ea1n ngh\u0129 theo c\u00e1ch u\u1ed1n qu\u00e1 thay v\u00ec \u201c\u0111\u00e1nh 90\u00b0,\u201d m\u00e1y u\u1ed1n kh\u00f4ng c\u00f2n l\u00e0 b\u00faa n\u1eefa.<\/p>\n\n\n\n

      N\u00f3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n

      V\u00e0 b\u00e2y gi\u1edd c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ea9y m\u1ea1nh \u0111\u1ebfn m\u1ee9c n\u00e0o.<\/p>\n\n\n\n

      M\u00e0 l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi b\u1ea1n th\u1ea3 tay ra nh\u01b0 th\u1ebf n\u00e0o.<\/p>","protected":false},"excerpt":{"rendered":"

      Th\u1ee9 Ba tu\u1ea7n tr\u01b0\u1edbc, b\u1ea1n \u0111\u00e3 u\u1ed1n m\u01b0\u1eddi chi\u1ebfc gi\u00e1 \u0111\u1ee1 t\u1eeb th\u00e9p A36 d\u00e0y 1\/8 inch. Chi\u1ebfc \u0111\u1ea7u ti\u00ean \u0111\u1ea1t 90\u00b0. Chi\u1ebfc th\u1ee9 hai \u0111\u1ea1t 91,5\u00b0. \u0110\u1ebfn chi\u1ebfc th\u1ee9 t\u00e1m, b\u1ea1n \u0111ang nh\u00ecn ch\u1eb1m ch\u1eb1m v\u00e0o con s\u1ed1 93\u00b0 v\u00e0 v\u1eb7n tr\u1ee5c \u00e9p xu\u1ed1ng th\u00eam 0,010 inch nh\u01b0 th\u1ec3 l\u00e0m v\u1eady s\u1ebd khi\u1ebfn th\u00e9p ph\u1ea3i khu\u1ea5t ph\u1ee5c. B\u1ea1n kh\u00f4ng ph\u1ea3i \u0111ang \u0111\u1ecbnh h\u00ecnh kim lo\u1ea1i. B\u1ea1n \u0111ang g\u00e2y chi\u1ebfn v\u1edbi n\u00f3. \u201cK\u1eb9p v\u00e0 \u00c9p\u201d [\u2026]<\/p>","protected":false},"author":3,"featured_media":1282,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/comments?post=1275"}],"version-history":[{"count":2,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1275\/revisions"}],"predecessor-version":[{"id":1281,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1275\/revisions\/1281"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media\/1282"}],"wp:attachment":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media?parent=1275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/categories?post=1275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/tags?post=1275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}