{"id":1426,"date":"2026-03-20T07:20:06","date_gmt":"2026-03-20T07:20:06","guid":{"rendered":"https:\/\/cn-hawe.com\/?p=1426"},"modified":"2026-03-19T07:25:54","modified_gmt":"2026-03-19T07:25:54","slug":"press-brake-radius-calculator","status":"publish","type":"post","link":"https:\/\/cn-hawe.com\/vi\/press-brake-radius-calculator\/","title":{"rendered":"M\u00e1y T\u00ednh B\u00e1n K\u00ednh Ch\u1ea5n T\u00f4n: T\u1ea1i Sao (V\u2212MT)\/2 Kh\u00f4ng Ch\u00ednh X\u00e1c V\u00e0 C\u00e1ch D\u1ef1 \u0110o\u00e1n B\u00e1n K\u00ednh U\u1ed1n Th\u1ef1c"},"content":{"rendered":"

T\u00f4i \u0111\u00e3 \u0111\u1ee9ng b\u00ean tr\u00ean m\u1ed9t gi\u00e1 \u0111\u1ee1 kim lo\u1ea1i 10-gauge, khu\u00f4n V 1.000\u2033, c\u00e1c con s\u1ed1 tr\u00ean b\u1ea3n v\u1ebd r\u00f5 r\u00e0ng. (V \u2212 MT) \/ 2 cho bi\u1ebft b\u00e1n k\u00ednh b\u00ean trong s\u1ebd \u0111\u1ea1t 0.433\u2033.<\/p>\n\n\n\n

Th\u01b0\u1edbc c\u1eb7p \u0111o \u0111\u01b0\u1ee3c 0.470\u2033. Cho t\u1eebng chi ti\u1ebft.<\/p>\n\n\n\n

B\u1ea1n ki\u1ec3m tra l\u1ea1i ph\u00e9p t\u00ednh. B\u1ea1n ki\u1ec3m tra l\u1ea1i k\u00fd hi\u1ec7u tr\u00ean khu\u00f4n. B\u1ea1n \u0111\u1ed5 l\u1ed7i cho l\u00f4 v\u1eadt li\u1ec7u. Trong khi \u0111\u00f3, th\u00f9ng ph\u1ebf li\u1ec7u \u0111\u1ea7y d\u1ea7n l\u00ean nh\u01b0 m\u1ed9t cu\u1ed9c tranh lu\u1eadn im l\u1eb7ng m\u00e0 b\u1ea1n \u0111ang thua tr\u01b0\u1edbc m\u1ed9t c\u1ed7 m\u00e1y 200 t\u1ea5n ch\u1ec9 bi\u1ebft n\u00f3i s\u1ef1 th\u1eadt.<\/p>\n\n\n\n

C\u00f3 g\u00ec \u0111\u00f3 kh\u00f4ng kh\u1edbp \u2014 v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 do s\u1ed1 h\u1ecdc.<\/p>\n\n\n\n

S\u1ef1 Th\u1eadt Kh\u00f3 Ch\u1ecbu: T\u1ea1i Sao C\u00f4ng Th\u1ee9c B\u00e1n K\u00ednh \u201cCh\u00ednh X\u00e1c\u201d C\u1ee7a B\u1ea1n L\u1ea1i \u0110\u1ea3m B\u1ea3o T\u1ea1o Ra Ph\u1ebf Li\u1ec7u<\/h2>\n\n\n\n

C\u00f4ng th\u1ee9c kh\u00f4ng h\u1ec1 ng\u1edb ng\u1ea9n. N\u00f3 r\u1ea5t ch\u00ednh x\u00e1c. V\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0 v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n

(V \u2212 MT) \/ 2 gi\u1ea3 \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 h\u00ecnh h\u1ecdc c\u1ed1 \u0111\u1ecbnh gi\u1eefa \u0111\u1ed9 m\u1edf khu\u00f4n v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. N\u00f3 gi\u1ea3 \u0111\u1ecbnh t\u1ea5m kim lo\u1ea1i \u0111\u01b0\u1ee3c \u00e9p v\u00e0o m\u1ed9t h\u00ecnh d\u1ea1ng c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c do b\u1ed9 khu\u00f4n x\u00e1c \u0111\u1ecbnh. N\u00f3i c\u00e1ch kh\u00e1c, n\u00f3 gi\u1ea3 \u0111\u1ecbnh khu\u00f4n l\u00e0 y\u1ebfu t\u1ed1 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

Nh\u01b0ng h\u00e3y b\u01b0\u1edbc v\u00e0o h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng gia c\u00f4ng hi\u1ec7n \u0111\u1ea1i v\u00e0 quan s\u00e1t \u0111i\u1ec1u th\u1ef1c s\u1ef1 x\u1ea3y ra. Ch\u00edn m\u01b0\u01a1i ph\u1ea7n tr\u0103m c\u00e1c l\u1ea7n u\u1ed1n \u0111\u1ec1u l\u00e0 u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y (air bending). Ch\u00e0y kh\u00f4ng bao gi\u1edd ch\u1ea1m \u0111\u00e1y khu\u00f4n. T\u1ea5m v\u1eadt li\u1ec7u ch\u1ec9 v\u1eeba ch\u1ea1m v\u00e0o m\u00e9p khu\u00f4n. G\u00f3c u\u1ed1n \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh \u2014 t\u1ee9c l\u00e0 qu\u00e3ng di chuy\u1ec3n c\u1ee7a b\u00e0n tr\u01b0\u1ee3t \u2014 ch\u1ee9 kh\u00f4ng ph\u1ea3i b\u1eb1ng vi\u1ec7c \u00e9p ch\u1eb7t t\u1ea5m v\u00e0o h\u00ecnh ch\u1eef V.<\/p>\n\n\n\n

Ch\u00fang ta \u0111ang d\u00f9ng m\u1ed9t ph\u01b0\u01a1ng tr\u00ecnh d\u00e0nh cho u\u1ed1n ch\u1ea1m \u0111\u00e1y trong m\u1ed9t th\u1ebf gi\u1edbi u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y.<\/p>\n\n\n\n

Ki\u1ec3m Tra Th\u1ef1c T\u1ebf Th\u00f9ng Ph\u1ebf Li\u1ec7u: N\u1ebfu c\u00f4ng th\u1ee9c \u0111\u00f3 th\u1ef1c s\u1ef1 ch\u00ednh x\u00e1c, s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n s\u1ebd kh\u1edbp v\u1edbi b\u1ea3n v\u1ebd m\u00e0 kh\u00f4ng c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh ba l\u1ea7n. S\u00e1ng nay b\u1ea1n \u0111\u00e3 th\u1eed m\u1ea5y c\u00fa u\u1ed1n r\u1ed3i?<\/p>\n\n\n\n

N\u1ebfu (V \u2212 MT) \/ 2 l\u00e0 ho\u00e0n h\u1ea3o v\u1ec1 m\u1eb7t to\u00e1n h\u1ecdc, t\u1ea1i sao c\u00e1c chi ti\u1ebft c\u1ee7a b\u1ea1n lu\u00f4n \u0111o \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n ti\u00eau chu\u1ea9n?<\/h3>\n\n\n\n
\"t\u1ea1i<\/figure>\n\n\n\n

H\u00e3y gi\u1eef nguy\u00ean khu\u00f4n V 1.000\u2033 v\u00e0 th\u00e9p 10-gauge. Tr\u00ean gi\u1ea5y, tr\u1eeb \u0111\u1ed9 d\u00e0y, chia cho hai, v\u00e0 b\u1ea1n c\u00f3 b\u00e1n k\u00ednh c\u1ee7a m\u00ecnh. G\u1ecdn g\u00e0ng. Th\u1ecfa m\u00e3n.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y u\u1ed1n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng ch\u1ea1m \u0111\u00e1y.<\/p>\n\n\n\n

Ch\u00e0y \u00e9p t\u1ea5m kim lo\u1ea1i xu\u1ed1ng gi\u1eefa hai m\u00e9p khu\u00f4n, nh\u01b0ng kh\u00f4ng bao gi\u1edd \u00e9p cho v\u1eadt li\u1ec7u ho\u00e0n to\u00e0n v\u00e0o h\u00ecnh ch\u1eef V. B\u00e1n k\u00ednh b\u00ean trong h\u00ecnh th\u00e0nh khi v\u1eadt li\u1ec7u k\u00e9o gi\u00e3n qua m\u0169i ch\u00e0y v\u00e0 l\u01a1 l\u1eedng gi\u1eefa hai m\u00e9p khu\u00f4n \u0111\u00f3. G\u00f3c cu\u1ed1i c\u00f9ng ho\u00e0n to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 s\u00e2u ch\u00e0y \u0111i xu\u1ed1ng. D\u1ecbch th\u00eam v\u00e0i ph\u1ea7n ngh\u00ecn h\u00e0nh tr\u00ecnh? G\u00f3c kh\u00e9p ch\u1eb7t h\u01a1n. Gi\u1ea3m v\u00e0i ph\u1ea7n ngh\u00ecn? G\u00f3c m\u1edf ra.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 h\u00ecnh h\u1ecdc ti\u1ebfp x\u00fac thay \u0111\u1ed5i theo m\u1ed7i l\u1ea7n \u0111i\u1ec1u ch\u1ec9nh.<\/p>\n\n\n\n

C\u00f4ng th\u1ee9c gi\u1ea3 \u0111\u1ecbnh \u0111\u1ed9 m\u1edf khu\u00f4n quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh. Trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, v\u1ecb tr\u00ed h\u00e0nh tr\u00ecnh c\u1ee7a m\u00e1y quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh. \u0110\u00f3 kh\u00f4ng ph\u1ea3i c\u00f9ng m\u1ed9t m\u00f4 h\u00ecnh. M\u1ed9t b\u00ean l\u00e0 h\u00ecnh h\u1ecdc. B\u00ean kia l\u00e0 chuy\u1ec3n \u0111\u1ed9ng.<\/p>\n\n\n\n

Ki\u1ec3m Tra Th\u1ef1c T\u1ebf Th\u00f9ng Ph\u1ebf Li\u1ec7u: N\u1ebfu m\u00e1y ch\u1ea5n c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 gi\u1eef \u0111\u1ed9 l\u1eb7p h\u00e0nh tr\u00ecnh trong v\u00e0i ph\u1ea7n ngh\u00ecn inch, th\u00ec ph\u01b0\u01a1ng tr\u00ecnh b\u00e1n k\u00ednh t\u0129nh c\u00f3 th\u1ec3 c\u1ee9u b\u1ea1n b\u1eb1ng c\u00e1ch n\u00e0o \u0111\u00e2y?<\/p>\n\n\n\n

V\u1eady chuy\u1ec7n g\u00ec x\u1ea3y ra khi ch\u00fang ta x\u1eed l\u00fd m\u1ed9t qu\u00e1 tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng h\u00e0nh tr\u00ecnh nh\u01b0 th\u1ec3 \u0111\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng khu\u00f4n?<\/p>\n\n\n\n

Nguy c\u01a1 khi coi qu\u00e1 tr\u00ecnh u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y nh\u01b0 m\u1ed9t thao t\u00e1c ch\u1ea1m \u0111\u00e1y<\/h3>\n\n\n\n
\"Nguy<\/figure>\n\n\n\n

U\u1ed1n ch\u1ea1m \u0111\u00e1y l\u00e0 d\u00f9ng l\u1ef1c th\u00f4. B\u1ea1n \u00e9p v\u1eadt li\u1ec7u v\u00e0o khu\u00f4n cho \u0111\u1ebfn khi n\u00f3 bi\u1ebfn d\u1ea1ng theo khu\u00f4n. \u0110\u1ed9 b\u1eadt tr\u1edf l\u1ea1i b\u1ecb nghi\u1ec1n n\u00e1t v\u00ec b\u1ea1n d\u00f9ng l\u1ef1c g\u1ea5p ba \u0111\u1ebfn n\u0103m l\u1ea7n l\u1ef1c c\u1ee7a u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y. Khu\u00f4n \u0111\u1ecbnh h\u00ecnh g\u00f3c u\u1ed1n. B\u00e1n k\u00ednh g\u1ea7n nh\u01b0 \u0111\u01b0\u1ee3c d\u1eadp s\u1eb5n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 th\u1ebf gi\u1edbi m\u00e0 c\u00f4ng th\u1ee9c \u0111\u00f3 thu\u1ed9c v\u1ec1.<\/p>\n\n\n\n

Nh\u01b0ng n\u1ebfu c\u1ed1 \u00e9p l\u1ef1c u\u1ed1n trong thi\u1ebft l\u1eadp u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u1ec3 \u201cl\u00e0m cho ph\u00e9p to\u00e1n \u0111\u00fang,\u201d th\u00ec b\u1ea1n \u0111ang m\u1ea1o hi\u1ec3m v\u1edbi hi\u1ec7n t\u01b0\u1ee3ng \u201ccoining\u201d\u2014m\u1ed9t l\u1ef1c v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n c\u00f3 th\u1ec3 l\u00e0m n\u1ee9t khu\u00f4n ho\u1eb7c g\u00e2y \u1ee9ng su\u1ea5t cho thanh tr\u01b0\u1ee3t. T\u00f4i \u0111\u00e3 th\u1ea5y nhi\u1ec1u th\u1ee3 v\u1eadn h\u00e0nh c\u1ed1 gi\u1ea3m \u0111\u1ed9 \u0111\u00e0n h\u1ed3i v\u1eadt li\u1ec7u b\u1eb1ng c\u00e1ch t\u0103ng \u00e1p l\u1ef1c, nh\u01b0 th\u1ec3 h\u1ecd \u0111ang si\u1ebft bu-l\u00f4ng b\u00e1nh xe. Chi ti\u1ebft c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c mong mu\u1ed1n, nh\u01b0ng d\u1ee5ng c\u1ee5 s\u1ebd ph\u1ea3i tr\u1ea3 gi\u00e1 sau \u0111\u00f3.<\/p>\n\n\n\n

U\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 tr\u00e1nh b\u1ea1o l\u1ef1c \u0111\u00f3. N\u00f3 \u0111\u00e1nh \u0111\u1ed5i s\u1ef1 ch\u1eafc ch\u1eafn tuy\u1ec7t \u0111\u1ed1i l\u1ea5y t\u00ednh linh ho\u1ea1t v\u00e0 l\u1ef1c u\u1ed1n nh\u1ecf h\u01a1n. B\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o nhi\u1ec1u g\u00f3c trong c\u00f9ng m\u1ed9t khu\u00f4n ch\u1ec9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh. Ch\u00ednh t\u00ednh \u0111a d\u1ee5ng \u0111\u00f3 l\u00e0 l\u00fd do h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng gia c\u00f4ng \u0111\u1ec1u s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho g\u1ea7n nh\u01b0 m\u1ecdi th\u1ee9.<\/p>\n\n\n\n

V\u1eady m\u00e0 ch\u00fang ta v\u1eabn b\u00e1m v\u00e0o m\u1ed9t c\u00f4ng th\u1ee9c \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho quy tr\u00ecnh m\u00e0 m\u00ecnh kh\u00f4ng c\u00f2n s\u1eed d\u1ee5ng.<\/p>\n\n\n\n

Th\u1ef1c t\u1ebf t\u1eeb th\u00f9ng ph\u1ebf li\u1ec7u: C\u00f3 r\u1ebb h\u01a1n kh\u00f4ng n\u1ebfu \u0111i\u1ec1u ch\u1ec9nh h\u00e0nh tr\u00ecnh m\u1ed9t c\u00e1ch linh ho\u1ea1t\u2014hay thay th\u1ebf m\u1ed9t khu\u00f4n b\u1ecb n\u1ee9t v\u00ec b\u1ea1n c\u1ed1 \u00e9p th\u1ef1c t\u1ebf ph\u1ea3i kh\u1edbp v\u1edbi s\u00e1ch gi\u00e1o khoa?<\/p>\n\n\n\n

N\u1ebfu ph\u00e9p to\u00e1n kh\u00f4ng sai, nh\u01b0ng m\u00f4 h\u00ecnh l\u1ea1i sai, th\u00ec \u0111i\u1ec1u \u0111\u00f3 s\u1ebd khi\u1ebfn b\u1ea1n t\u1ed1n bao nhi\u00eau theo th\u1eddi gian?<\/p>\n\n\n\n

Chi ph\u00ed \u1ea9n khi tin v\u00e0o m\u1ed9t c\u00f4ng th\u1ee9c s\u1ea1ch s\u1ebd trong m\u00f4i tr\u01b0\u1eddng x\u01b0\u1edfng b\u1eeba b\u1ed9n.<\/h3>\n\n\n\n
\"Chi<\/figure>\n\n\n\n

\u0110\u00e2y l\u00e0 \u0111i\u1ec1u c\u00f4ng th\u1ee9c kh\u00f4ng nh\u00ecn th\u1ea5y: s\u1ef1 thay \u0111\u1ed5i gi\u1edbi h\u1ea1n b\u1ec1n k\u00e9o gi\u1eefa c\u00e1c cu\u1ed9n th\u00e9p, m\u1eb7t b\u00e0n h\u01a1i cong, \u0111\u1ea7u ch\u00e0y b\u1ecb m\u00f2n, \u0111\u1ed9 tr\u00f4i th\u1ee7y l\u1ef1c trong m\u1ed9t bu\u1ed5i chi\u1ec1u n\u00f3ng. Kh\u00f4ng \u0111i\u1ec1u n\u00e0o trong \u0111\u00f3 hi\u1ec7n ra trong (V \u2212 MT) \/ 2.<\/p>\n\n\n\n

Nh\u01b0ng t\u1ea5t c\u1ea3 l\u1ea1i th\u1ec3 hi\u1ec7n tr\u00ean chi ti\u1ebft c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

U\u1ed1n kh\u00f4ng ch\u1ea1m khi\u1ebfn ch\u00ednh m\u00e1y \u00e9p tr\u1edf th\u00e0nh bi\u1ebfn s\u1ed1 quan tr\u1ecdng. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a h\u00e0nh tr\u00ecnh. \u0110\u1ed9 song song c\u1ee7a thanh tr\u01b0\u1ee3t. \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a th\u01b0\u1edbc g\u00e1 sau. Trong u\u1ed1n s\u00e1t \u0111\u00e1y, khu\u00f4n ch\u1ecbu g\u00e1nh n\u1eb7ng ch\u00ednh. Trong u\u1ed1n kh\u00f4ng ch\u1ea1m, m\u00e1y ch\u1ecbu tr\u00e1ch nhi\u1ec7m ch\u00ednh. M\u1ed9t c\u00f4ng th\u1ee9c s\u1ea1ch h\u01a1n s\u1ebd kh\u00f4ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c m\u1ed9t m\u00e1y kh\u00f4ng th\u1ec3 l\u1eb7p l\u1ea1i trong sai s\u1ed1 cho ph\u00e9p. \u0110\u00f3 l\u00e0 l\u00fd do nhi\u1ec1u x\u01b0\u1edfng chuy\u1ec3n sang c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n CNC ho\u00e0n to\u00e0n, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho vi\u1ec7c u\u1ed1n ch\u00ednh x\u00e1c cao v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a\u2014nh\u01b0 trong d\u00f2ng m\u00e1y \u00e9p phanh CN-HAWE<\/a>\u2014n\u01a1i vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh, song song v\u00e0 kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i tr\u1edf th\u00e0nh n\u0103ng l\u1ef1c \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c, ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u1ecfng \u0111o\u00e1n.<\/p>\n\n\n\n

Chi ph\u00ed \u1ea9n kh\u00f4ng ch\u1ec9 l\u00e0 ph\u1ebf ph\u1ea9m. \u0110\u00f3 c\u00f2n l\u00e0 th\u1eddi gian b\u1ecb l\u00e3ng ph\u00ed \u0111\u1ec3 \u0111u\u1ed5i theo nh\u1eefng con s\u1ed1 v\u1ed1n kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n quy tr\u00ecnh n\u00e0y. \u0110\u00f3 l\u00e0 s\u1ef1 t\u1ef1 tin sai l\u1ea7m. L\u00e0 vi\u1ec7c \u0111\u1ed5 l\u1ed7i cho ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00ec \u201cu\u1ed1n sai\u201d trong khi v\u1ea5n \u0111\u1ec1 th\u1eadt s\u1ef1 l\u00e0 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng tr\u00ecnh t\u0129nh trong m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1ed9ng.<\/p>\n\n\n\n

M\u00e1y \u00e9p 200 t\u1ea5n kh\u00f4ng quan t\u00e2m c\u00f4ng th\u1ee9c \u0111\u1ea1i s\u1ed1 c\u1ee7a b\u1ea1n \u0111\u1eb9p \u0111\u1ebfn m\u1ee9c n\u00e0o. N\u00f3 ch\u1ec9 quan t\u00e2m \u0111\u1ebfn vi\u1ec7c ch\u00e0y d\u1eebng \u1edf \u0111\u00e2u.<\/p>\n\n\n\n

V\u1eady n\u1ebfu khu\u00f4n kh\u00f4ng th\u1ef1c s\u1ef1 x\u00e1c \u0111\u1ecbnh b\u00e1n k\u00ednh trong u\u1ed1n kh\u00f4ng ch\u1ea1m, th\u00ec b\u00e1n k\u00ednh \u0111\u00f3 th\u1ef1c s\u1ef1 \u0111\u1ebfn t\u1eeb \u0111\u00e2u?<\/p>\n\n\n\n

V\u1eadt l\u00fd c\u1ee7a khu\u00f4n ch\u1eef V: N\u01a1i b\u00e1n k\u00ednh th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh.<\/h2>\n\n\n\n

H\u00e3y l\u1ea5y c\u00f9ng khu\u00f4n ch\u1eef V k\u00edch th\u01b0\u1edbc 1.000\u2033 v\u00e0 th\u00e9p c\u00e1n ngu\u1ed9i 10\u2011gauge, 60\u2011KSI. \u0110o b\u00e1n k\u00ednh b\u00ean trong c\u1ee7a m\u01b0\u1eddi chi ti\u1ebft u\u1ed1n kh\u00f4ng ch\u1ea1m. B\u1ea1n s\u1ebd kh\u00f4ng thu \u0111\u01b0\u1ee3c 0.433\u2033. C\u0169ng kh\u00f4ng ra \u0111\u00fang b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y c\u1ee7a b\u1ea1n. K\u1ebft qu\u1ea3 s\u1ebd n\u1eb1m kho\u1ea3ng 0.160\u2033 \u0111\u1ebfn 0.200\u2033\u2014t\u1ee9c x\u1ea5p x\u1ec9 16\u201320% \u0111\u1ed9 m\u1edf khu\u00f4n.<\/p>\n\n\n\n

T\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m \u0111\u00f3 xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean \u0111\u1ebfn m\u1ee9c kh\u00f4ng c\u00f2n l\u00e0 ng\u1eabu nhi\u00ean n\u1eefa.<\/p>\n\n\n\n

Kh\u00f4ng ph\u1ea3i v\u00ec khu\u00f4n th\u1ea7n k\u1ef3 d\u1eadp ra \u0111\u01b0\u1ee3c con s\u1ed1 \u0111\u00f3. C\u0169ng kh\u00f4ng ph\u1ea3i v\u00ec \u0111\u1ea7u ch\u00e0y tr\u00f9ng kh\u1edbp ho\u00e0n h\u1ea3o. M\u00e0 l\u00e0 v\u00ec khi t\u1ea5m kim lo\u1ea1i ch\u00ecm xu\u1ed1ng gi\u1eefa hai vai khu\u00f4n, n\u00f3 t\u1ef1 t\u00ecm ra m\u1ed9t \u0111\u1ed9 cong t\u1ef1 nhi\u00ean d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng ch\u1ecbu u\u1ed1n c\u1ee7a n\u00f3 trong kho\u1ea3ng m\u1edf \u0111\u00f3. \u0110\u1ed9 r\u1ed9ng khu\u00f4n \u0111\u1eb7t ra \u0111i\u1ec1u ki\u1ec7n ban \u0111\u1ea7u. \u0110\u1ed9 k\u00e9o v\u1eadt li\u1ec7u quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 u\u1ed1n cong tr\u00ean kho\u1ea3ng \u0111\u00f3. B\u00e1n k\u00ednh h\u00ecnh th\u00e0nh gi\u1eefa kh\u00f4ng trung, treo gi\u1eefa hai vai, v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1eb1ng \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp.<\/p>\n\n\n\n

Trong u\u1ed1n kh\u00f4ng ch\u1ea1m, ch\u00ednh \u0111\u1ed9 m\u1edf khu\u00f4n\u2014ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ea7u ch\u00e0y hay m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n\u2014l\u00e0 y\u1ebfu t\u1ed1 t\u1ea1o n\u00ean b\u00e1n k\u00ednh trong c\u01a1 b\u1ea3n. M\u1ecdi th\u1ee9 kh\u00e1c ch\u1ec9 d\u1ef1a tr\u00ean n\u1ec1n t\u1ea3ng \u0111\u00f3.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n v\u1eabn \u0111ang theo \u0111u\u1ed5i (V \u2212 MT)\/2, th\u00ec b\u1ea1n \u0111ang gi\u1ea3i sai c\u01a1 ch\u1ebf r\u1ed3i.<\/p>\n\n\n\n

T\u00ednh to\u00e1n \u0111\u01b0\u1eddng c\u01a1 s\u1edf th\u1ef1c t\u1ebf: Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf t\u1ef7 l\u1ec7 khu\u00f4n 8x \u0111\u1ebfn 12x<\/h3>\n\n\n\n

T\u00f4i \u0111\u00e3 \u0111\u1ee9ng b\u00ean tr\u00ean m\u1ed9t gi\u00e1 \u0111\u1ee1 th\u00e9p 10 gauge, v\u1edbi khu\u00f4n V 1\u2033 b\u00ean d\u01b0\u1edbi, v\u00ec th\u00e9p 10 gauge c\u00f3 \u0111\u1ed9 d\u00e0y 0,135\u2033 nh\u00e2n 8 cho k\u1ebft qu\u1ea3 kho\u1ea3ng 1,08\u2033. Kh\u00e1 g\u1ea7n r\u1ed3i. Quy t\u1eafc 8\u00d7 \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 chuy\u1ec7n truy\u1ec1n mi\u1ec7ng. N\u00f3 gi\u00fap gi\u1eef m\u1ee9c l\u1ef1c \u00e9p h\u1ee3p l\u00fd v\u00e0 th\u01b0\u1eddng \u0111\u01b0a b\u1ea1n v\u00e0o v\u00f9ng u\u1ed1n \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

Th\u1ef1c hi\u1ec7n ph\u00e9p to\u00e1n xu\u00f4i thay v\u00ec ng\u01b0\u1ee3c.<\/p>\n\n\n\n

N\u1ebfu khu\u00f4n V 1.000\u2033 n\u1eb1m trong ph\u1ea1m vi ph\u00f9 h\u1ee3p cho \u0111\u1ed9 d\u00e0y \u0111\u00f3, v\u00e0 u\u1ed1n kh\u00ed t\u1ea1o ra b\u00e1n k\u00ednh trong kho\u1ea3ng 16\u201320% c\u1ee7a V \u0111\u1ed1i v\u1edbi th\u00e9p 60 KSI, b\u1ea1n \u0111ang d\u1ef1 \u0111o\u00e1n b\u00e1n k\u00ednh 0,160\u2033\u20130,200\u2033 tr\u01b0\u1edbc khi tr\u1ee5c \u00e9p ch\u1ea1m v\u00e0o. \u0110i\u1ec1u \u0111\u00f3 \u0111\u00e3 kh\u00e1c xa v\u1edbi (V \u2212 T)\/2 r\u1ed3i.<\/p>\n\n\n\n

B\u00e2y gi\u1edd si\u1ebft khu\u00f4n l\u1ea1i c\u00f2n 0,800\u2033\u2014kho\u1ea3ng 6\u00d7 \u0111\u1ed9 d\u00e0y. B\u00e1n k\u00ednh t\u1ef1 nhi\u00ean c\u1ee7a b\u1ea1n gi\u1ea3m xu\u1ed1ng c\u00f2n kho\u1ea3ng 0,128\u2033\u20130,160\u2033. M\u1edf ra \u0111\u1ebfn 1,250\u2033\u2014g\u1ea7n 10\u00d7\u2014v\u00e0 b\u1ea1n s\u1ebd c\u00f3 kho\u1ea3ng 0,200\u2033\u20130,250\u2033.<\/p>\n\n\n\n

T\u1ef7 l\u1ec7 (8\u00d7, 10\u00d7, 12\u00d7) kh\u00f4ng n\u00f3i v\u1ec1 s\u1ef1 tinh t\u1ebf. N\u00f3 n\u00f3i v\u1ec1 vi\u1ec7c ki\u1ec3m so\u00e1t hai th\u1ee9 c\u00f9ng l\u00fac: l\u1ef1c \u00e9p t\u00ednh theo feet v\u00e0 ph\u1ea7n tr\u0103m b\u00e1n k\u00ednh s\u1ebd h\u00ecnh th\u00e0nh t\u1eeb kho\u1ea3ng m\u1edf \u0111\u00f3. Ch\u1ecdn khu\u00f4n qu\u00e1 h\u1eb9p, l\u1ef1c \u00e9p t\u0103ng v\u1ecdt. Ch\u1ecdn qu\u00e1 r\u1ed9ng, b\u00e1n k\u00ednh c\u1ee7a b\u1ea1n ph\u1ed3ng to ra d\u00f9 b\u1ea3n v\u1ebd c\u00f3 mu\u1ed1n hay kh\u00f4ng.<\/p>\n\n\n\n

Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf trong th\u00f9ng ph\u1ebf li\u1ec7u: B\u1ea1n \u0111\u00e3 bao gi\u1edd m\u1edf khu\u00f4n \u201cch\u1ec9 \u0111\u1ec3 an to\u00e0n v\u1ec1 l\u1ef1c \u00e9p\u201d r\u1ed3i t\u1ef1 h\u1ecfi t\u1ea1i sao m\u00e9p g\u1ea5p c\u1ee7a b\u1ea1n l\u1ea1i kh\u00f4ng kh\u1edbp v\u1edbi chi ti\u1ebft \u0111\u1ed1i \u1ee9ng ch\u01b0a? \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u1ed7i c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. \u0110\u00f3 l\u00e0 h\u00ecnh h\u1ecdc \u0111ang \u0111i\u1ec1u ch\u1ec9nh b\u00e1n k\u00ednh c\u1ee7a b\u1ea1n d\u00f9 b\u1ea1n kh\u00f4ng y\u00eau c\u1ea7u.<\/p>\n\n\n\n

V\u1eady n\u1ebfu chi\u1ec1u r\u1ed9ng khu\u00f4n \u0111\u1eb7t ph\u1ea7n tr\u0103m c\u01a1 b\u1ea3n, \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi ch\u00ednh v\u1eadt li\u1ec7u l\u1ea1i ch\u1ed1ng u\u1ed1n m\u1ea1nh h\u01a1n\u2014ho\u1eb7c m\u1ec1m h\u01a1n\u2014so v\u1edbi c\u00f4ng vi\u1ec7c tr\u01b0\u1edbc c\u1ee7a b\u1ea1n?<\/p>\n\n\n\n

S\u1ef1 thay \u0111\u1ed5i h\u1ec7 s\u1ed1 nh\u00e2n: C\u00e1ch \u0111i\u1ec1u ch\u1ec9nh ph\u00e9p to\u00e1n cho th\u00e9p kh\u00f4ng g\u1ec9 so v\u1edbi nh\u00f4m m\u1ec1m<\/h3>\n\n\n\n

Thay th\u00e9p c\u00e1n ngu\u1ed9i 60 KSI b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 304 trong c\u00f9ng khu\u00f4n V 1.000\u2033. C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng ch\u00e0y. C\u00f9ng \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh l\u1eadp tr\u00ecnh \u0111\u1ec3 \u0111\u1ea1t 90\u00b0.<\/p>\n\n\n\n

\u0110o b\u00e1n k\u00ednh.<\/p>\n\n\n\n

N\u00f3 m\u1edf ra.<\/p>\n\n\n\n

Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n v\u00e0 d\u1ec5 h\u00f3a b\u1ec1n h\u01a1n nhi\u1ec1u. Khi ch\u00e0y \u1ea5n xu\u1ed1ng, v\u1eadt li\u1ec7u ch\u1ed1ng l\u1ea1i \u0111\u1ed9 cong m\u1ea1nh h\u01a1n th\u00e9p th\u01b0\u1eddng. N\u00f3 s\u1ebd kh\u00f4ng d\u1ec5 d\u00e0ng \u00f4m s\u00e1t d\u1ea3i th\u1ea5p 16% \u0111\u00f3. B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y n\u00f3 tr\u00f4i v\u1ec1 20% ho\u1eb7c cao h\u01a1n m\u1ed9t ch\u00fat. Kim lo\u1ea1i \u0111ang gi\u00e3n ra d\u01b0\u1edbi \u1ee9ng su\u1ea5t n\u1ed9i cao h\u01a1n tr\u01b0\u1edbc khi ch\u1ea3y d\u1ebbo th\u00e0nh cung cong ch\u1eb7t h\u01a1n.<\/p>\n\n\n\n

B\u00e2y gi\u1edd th\u1eed nh\u00f4m 5052 m\u1ec1m. \u0110\u1ed9 b\u1ec1n k\u00e9o th\u1ea5p h\u01a1n. Gi\u1edbi h\u1ea1n ch\u1ea3y th\u1ea5p h\u01a1n. \u00cdt kh\u00e1ng l\u1ea1i h\u01a1n. N\u00f3 s\u1ebd l\u00fan s\u00e2u h\u01a1n v\u1edbi c\u00f9ng \u0111\u1ed9 \u00e9p, th\u01b0\u1eddng t\u1ea1o ra b\u00e1n k\u00ednh g\u1ea7n v\u1edbi \u0111\u1ea7u th\u1ea5p c\u1ee7a d\u1ea3i ph\u1ea7n tr\u0103m\u2014th\u1eadm ch\u00ed th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat trong v\u00e0i tr\u01b0\u1eddng h\u1ee3p.<\/p>\n\n\n\n

C\u00f9ng khu\u00f4n. Kh\u00e1c h\u1ec7 s\u1ed1 nh\u00e2n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 s\u1ef1 thay \u0111\u1ed5i m\u00e0 h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 t\u00ednh to\u00e1n b\u1ecf qua. H\u1ecd coi V l\u00e0 bi\u1ebfn duy nh\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y l\u00e0 gi\u00e1 tr\u1ecb tr\u1eeb. Tr\u00ean th\u1ef1c t\u1ebf, \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00e0m d\u1ecbch chuy\u1ec3n v\u1ecb tr\u00ed b\u1ea1n n\u1eb1m trong d\u1ea3i 16\u201320% \u0111\u00f3. V\u1eadt li\u1ec7u m\u1ea1nh h\u01a1n \u0111\u1ea9y b\u1ea1n v\u1ec1 ph\u00eda c\u1ef1c tr\u00ean c\u1ee7a kho\u1ea3ng. V\u1eadt li\u1ec7u m\u1ec1m h\u01a1n cho ph\u00e9p b\u1ea1n si\u1ebft ch\u1eb7t l\u1ea1i.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c quy t\u1eafc d\u1ef1a tr\u00ean \u0111\u1ed9 d\u00e0y ki\u1ec3u \u201c1\u00d7 v\u1eadt li\u1ec7u d\u01b0\u1edbi 6 mm\u201d \u0111\u00f4i khi c\u00f3 v\u1ebb \u0111\u00fang v\u1edbi t\u00f4n m\u1ecfng. Th\u00e9p m\u1ec1m m\u1ecfng trong khu\u00f4n c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p th\u01b0\u1eddng cho b\u00e1n k\u00ednh g\u1ea7n v\u1edbi \u0111\u1ed9 d\u00e0y. Nh\u01b0ng \u0111\u00f3 l\u00e0 s\u1ef1 tr\u00f9ng kh\u1edbp ng\u1eabu nhi\u00ean c\u1ee7a c\u00e1c bi\u1ebfn s\u1ed1, ch\u1ee9 kh\u00f4ng ch\u1ee9ng minh quy lu\u1eadt ph\u1ed5 qu\u00e1t. Thay \u0111\u1ed5i \u0111\u1ed9 b\u1ec1n ho\u1eb7c chi\u1ec1u r\u1ed9ng V v\u00e0 m\u1ed1i quan h\u1ec7 1\u00d7 g\u1ecdn g\u00e0ng \u0111\u00f3 bi\u1ebfn m\u1ea5t.<\/p>\n\n\n\n

Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf trong th\u00f9ng ph\u1ebf li\u1ec7u: Bao nhi\u00eau l\u1ea7n b\u1ea1n \u0111\u00e3 u\u1ed1n th\u00e9p kh\u00f4ng g\u1ec9 trong khu\u00f4n v\u1ed1n ho\u1ea1t \u0111\u1ed9ng ho\u00e0n h\u1ea3o v\u1edbi th\u00e9p th\u01b0\u1eddng, ch\u1ec9 \u0111\u1ec3 ph\u1ea3i ch\u1ec9nh g\u00f3c v\u00e0 ch\u1ee9ng ki\u1ebfn b\u00e1n k\u00ednh v\u1eabn t\u0103ng l\u00ean?<\/p>\n\n\n\n

V\u00e0 n\u1ebfu \u0111\u1ea7u ch\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 \u0111ang t\u1ea1o ra cung cong \u0111\u00f3, v\u1eady vai tr\u00f2 th\u1ef1c s\u1ef1 c\u1ee7a n\u00f3 l\u00e0 g\u00ec?<\/p>\n\n\n\n

H\u00ecnh d\u1ea1ng d\u1ee5ng c\u1ee5 so v\u1edbi h\u00e0nh vi v\u1eadt li\u1ec7u: T\u1ea1i sao b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y th\u1ef1c t\u1ebf v\u00e0 b\u00e1n k\u00ednh trong c\u00f9ng cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea1n hi\u1ebfm khi tr\u00f9ng kh\u1edbp<\/h3>\n\n\n\n

Nh\u00ecn v\u00e0o \u0111\u1ea7u ch\u00e0y 0.062\u2033 d\u01b0\u1edbi c\u00f9ng khu\u00f4n V 1.000\u2033 \u0111\u00f3. U\u1ed1n t\u1ea5m th\u00e9p d\u00e0y 10 theo ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n trong kh\u00f4ng kh\u00ed. \u0110o chi ti\u1ebft.<\/p>\n\n\n\n

B\u1ea1n s\u1ebd kh\u00f4ng th\u1ea5y c\u00f3 0.062\u2033 b\u00ean trong.<\/p>\n\n\n\n

Ch\u00e0y \u00e9p t\u1ea5m xu\u1ed1ng gi\u1eefa hai vai khu\u00f4n, nh\u01b0ng n\u00f3 kh\u00f4ng bao gi\u1edd \u00e9p v\u1eadt li\u1ec7u ho\u00e0n to\u00e0n v\u00e0o trong khu\u00f4n V. Ti\u1ebfp x\u00fac t\u1ea1i \u0111\u1ea7u ch\u00e0y ch\u1ec9 l\u00e0 c\u1ee5c b\u1ed9. Khi \u0111\u1ed9 xuy\u00ean t\u0103ng l\u00ean, t\u1ea5m th\u00e9p cu\u1ed1n m\u1ed9t ph\u1ea7n quanh ch\u00e0y, sau \u0111\u00f3 chuy\u1ec3n sang \u0111o\u1ea1n t\u1ef1 do gi\u1eefa hai vai khu\u00f4n. Ph\u1ea7n l\u1edbn b\u00e1n k\u00ednh b\u00ean trong cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi h\u00e0nh \u0111\u1ed9ng u\u1ed1n c\u1ee7a \u0111o\u1ea1n t\u1ef1 do \u0111\u00f3, ch\u1ee9 kh\u00f4ng ph\u1ea3i do ch\u00e0y in h\u00ecnh c\u1ee7a n\u00f3 nh\u01b0 m\u1ed9t con tem.<\/p>\n\n\n\n

\u0110\u1ed9 s\u00e2u xuy\u00ean thay \u0111\u1ed5i m\u1ecdi th\u1ee9. Ch\u1ec9 c\u1ea7n m\u1ed9t v\u00e0i ph\u1ea7n ngh\u00ecn inch h\u00e0nh tr\u00ecnh s\u00e2u h\u01a1n l\u00e0 \u0111\u1ed9 cu\u1ed1n t\u0103ng l\u00ean, chi\u1ec1u d\u00e0i \u0111o\u1ea1n t\u1ef1 do gi\u1ea3m xu\u1ed1ng v\u00e0 g\u00f3c tr\u1edf n\u00ean ch\u1eb7t h\u01a1n \u2014 nh\u01b0ng b\u00e1n k\u00ednh v\u1eabn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo \u0111\u1ed9 r\u1ed9ng khu\u00f4n v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u. Tr\u1eeb khi b\u1ea1n u\u1ed1n t\u1edbi \u0111\u00e1y ho\u1eb7c ch\u00e8n \u00e9p \u2014 t\u1ee9c l\u00e0 khi v\u1eadt li\u1ec7u b\u1ecb \u00e9p ho\u00e0n to\u00e0n v\u00e0o khu\u00f4n \u2014 \u0111\u1ea7u ch\u00e0y ch\u1ec9 l\u00e0 y\u1ebfu t\u1ed1 d\u1eabn h\u01b0\u1edbng, kh\u00f4ng ph\u1ea3i khu\u00f4n t\u1ea1o h\u00ecnh.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do v\u00ec sao trong u\u1ed1n kh\u00f4ng kh\u00ed \u0111\u00fang chu\u1ea9n, b\u00e1n k\u00ednh c\u1ee7a ch\u00e0y n\u00ean nh\u1ecf h\u01a1n b\u00e1n k\u00ednh b\u00ean trong d\u1ef1 ki\u1ebfn. N\u00f3 c\u1ea7n kh\u1edfi \u0111\u1ea7u cho qu\u00e1 tr\u00ecnh u\u1ed1n nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n n\u00f3. N\u1ebfu ch\u00fang kh\u1edbp ch\u00ednh x\u00e1c, b\u1ea1n \u0111ang v\u00f4 t\u00ecnh u\u1ed1n t\u1edbi \u0111\u00e1y ho\u1eb7c g\u1ea7n nh\u01b0 \u0111\u1ea1t t\u1edbi l\u1ef1c \u00e9p ch\u00e8n.<\/p>\n\n\n\n

M\u00e1y \u00e9p ch\u1ea5n l\u00e0 m\u1ed9t \u201cm\u00e1y s\u1ef1 th\u1eadt\u201d 200 t\u1ea5n. N\u00f3 ph\u01a1i b\u00e0y li\u1ec7u m\u00f4 h\u00ecnh c\u1ee7a b\u1ea1n c\u00f3 kh\u1edbp v\u1edbi th\u1ef1c t\u1ebf v\u1eadt l\u00fd hay kh\u00f4ng. Trong u\u1ed1n kh\u00f4ng kh\u00ed, v\u1eadt l\u00fd n\u00f3i \u0111i\u1ec1u n\u00e0y: kh\u1ea9u \u0111\u1ed9 khu\u00f4n x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch c\u01a1 b\u1ea3n, \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a v\u1eadt li\u1ec7u thay \u0111\u1ed5i ph\u1ea7n tr\u0103m b\u00ean trong kho\u1ea3ng \u0111\u00f3, v\u00e0 ch\u00e0y ch\u1ec9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 s\u00e2u b\u1ea1n \u0111i v\u00e0o trong h\u1ec7 th\u1ed1ng \u0111\u00f3.<\/p>\n\n\n\n

N\u1ebfu b\u1ea3n v\u1ebd y\u00eau c\u1ea7u b\u00e1n k\u00ednh nh\u1ecf m\u00e0 t\u1ef7 l\u1ec7 khu\u00f4n c\u1ee7a b\u1ea1n t\u1ef1 nhi\u00ean s\u1ebd v\u01b0\u1ee3t qu\u00e1, b\u1ea1n s\u1ebd ti\u1ebfp t\u1ee5c tin v\u00e0o c\u00f4ng th\u1ee9c t\u0129nh \u2014 hay b\u1ea1n s\u1ebd thay khu\u00f4n tr\u01b0\u1edbc khi th\u00f9ng ph\u1ebf li\u1ec7u l\u1ea1i \u201cb\u1ecf phi\u1ebfu\u201d l\u1ea7n n\u1eefa?<\/p>\n\n\n\n

B\u00f9 \u0111\u00e0n h\u1ed3i sau u\u1ed1n: Bi\u1ebfn s\u1ed1 m\u00e0 c\u00e1c b\u1ed9 t\u00ednh ti\u00eau chu\u1ea9n b\u1ecf qua<\/h2>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t gi\u00e1 \u0111\u1ee1 th\u00e9p cacbon nh\u1eb9 90\u00b0 r\u1eddi m\u00e1y \u00e9p \u1edf g\u00f3c 92\u00b0 khi \u0111\u1ea7u \u00e9p v\u1eeba n\u00e2ng l\u00ean. C\u00f9ng khu\u00f4n. C\u00f9ng ch\u01b0\u01a1ng tr\u00ecnh. C\u00f9ng ng\u01b0\u1eddi v\u1eadn h\u00e0nh. D\u01b0\u1edbi l\u1ef1c 200 t\u1ea5n, n\u00f3 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i. N\u0103m gi\u00e2y sau, th\u00ec kh\u00f4ng c\u00f2n nh\u01b0 v\u1eady.<\/p>\n\n\n\n

\u0110\u00f3 ch\u00ednh l\u00e0 c\u00e2u h\u1ecfi b\u1ea1n th\u1eadt s\u1ef1 \u0111ang \u0111\u1eb7t ra khi b\u00e1n k\u00ednh d\u1ef1a tr\u00ean khu\u00f4n t\u1ef1 nhi\u00ean kh\u00f4ng kh\u1edbp v\u1edbi b\u1ea3n v\u1ebd: b\u1ea1n \u0111ang t\u00ednh cho nh\u1eefng g\u00ec di\u1ec5n ra khi c\u00f3 t\u1ea3i, hay cho nh\u1eefng g\u00ec kh\u00e1ch h\u00e0ng \u0111o \u0111\u01b0\u1ee3c sau khi t\u1ea3i \u0111\u00e3 m\u1ea5t?<\/p>\n\n\n\n

B\u00e1n k\u00ednh v\u00e0 g\u00f3c m\u00e0 b\u1ea1n th\u1ea5y khi ch\u00e0y c\u00f2n n\u1eb1m trong khu\u00f4n V kh\u00f4ng ph\u1ea3i l\u00e0 b\u00e1n k\u00ednh v\u00e0 g\u00f3c b\u1ea1n xu\u1ea5t x\u01b0\u1edfng. Ngay khi \u00e1p l\u1ef1c \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng, bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c th\u00e1o ra. S\u1ee3i ngo\u00e0i b\u1ecb k\u00e9o gi\u00e3n c\u1ed1 g\u1eafng thu ng\u1eafn l\u1ea1i. S\u1ee3i trong b\u1ecb n\u00e9n c\u1ed1 g\u1eafng ph\u1ee5c h\u1ed3i. Chi ti\u1ebft m\u1edf ra. \u0110\u00f3 l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c, v\u00e0 n\u00f3 ch\u1eb3ng quan t\u00e2m \u0111\u1ebfn ph\u00e9p t\u00ednh g\u1ecdn g\u00e0ng (V \u2212 MT)\/2 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

Ki\u1ec3m tra th\u1ef1c t\u1ebf th\u00f9ng ph\u1ebf li\u1ec7u: \u0110\u00e3 bao gi\u1edd b\u1ea1n \u0111\u1ea1t g\u00f3c ho\u00e0n h\u1ea3o theo th\u00f4ng s\u1ed1 \u0111\u1ed9 s\u00e2u, ch\u1ec9 \u0111\u1ec3 ng\u01b0\u1eddi ki\u1ec3m tra b\u1ea3o r\u1eb1ng m\u1ecdi m\u00e9p \u0111\u1ec1u h\u1edf 1.5\u00b0? Th\u00e9p kh\u00f4ng \"c\u00e3i\" m\u00e0n h\u00ecnh \u0111\u00e2u. N\u00f3 tu\u00e2n theo v\u1eadt l\u00fd.<\/p>\n\n\n\n

C\u00e1c b\u1ed9 t\u00ednh t\u0129nh gi\u1ea3 \u0111\u1ecbnh h\u00ecnh h\u1ecdc t\u1ea1o ra d\u01b0\u1edbi \u00e1p l\u1ef1c s\u1ebd gi\u1eef nguy\u00ean. Nh\u01b0ng kh\u00f4ng ph\u1ea3i v\u1eady. V\u00e0 n\u1ebfu b\u1ea1n kh\u00f4ng th\u00eam y\u1ebfu t\u1ed1 b\u00f9 v\u00e0o k\u1ebf ho\u1ea1ch, b\u1ea1n kh\u00f4ng d\u1ef1 \u0111o\u00e1n m\u1ed9t b\u00e1n k\u00ednh ho\u00e0n thi\u1ec7n \u2014 b\u1ea1n ch\u1ec9 d\u1ef1 \u0111o\u00e1n m\u1ed9t b\u00e1n k\u00ednh t\u1ea1m th\u1eddi.<\/p>\n\n\n\n

V\u00ec th\u1ebf, cu\u1ed9c chi\u1ebfn th\u1eadt s\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 b\u00e1n k\u00ednh b\u1ea1n c\u00f3 \u1edf cu\u1ed1i h\u00e0nh tr\u00ecnh \u00e9p, m\u00e0 l\u00e0 b\u00e1n k\u00ednh c\u00f2n gi\u1eef \u0111\u01b0\u1ee3c sau khi d\u1ee1 t\u1ea3i.<\/p>\n\n\n\n

U\u1ed1n v\u01b0\u1ee3t \u0111\u1ec3 b\u00f9 \u0111\u00e0n h\u1ed3i: B\u1ea1n t\u00ednh cho b\u00e1n k\u00ednh khi \u0111\u00e3 gi\u00e3n h\u1ed3i hay khi \u0111ang ch\u1ecbu t\u1ea3i?<\/h3>\n\n\n\n

H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng th\u00e9p c\u00e1n ngu\u1ed9i 0.125\u2033 trong khu\u00f4n V 1.000\u2033. B\u1ea1n \u00e9p t\u1edbi \u0111\u1ed9 s\u00e2u cho g\u00f3c 90\u00b0 khi ch\u00e0y \u0111ang xu\u1ed1ng. N\u00e2ng \u0111\u1ea7u \u00e9p v\u00e0 b\u1ea1n \u0111\u1ea1t g\u00f3c 91.5\u00b0. Ngh\u0129a l\u00e0 d\u01b0\u1edbi t\u1ea3i, g\u00f3c th\u1ef1c t\u1ebf g\u1ea7n 88.5\u00b0.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y h\u1ecfi m\u00ecnh: c\u00f4ng th\u1ee9c c\u1ee7a b\u1ea1n \u0111\u00e3 d\u1ef1 \u0111o\u00e1n g\u00f3c n\u00e0o?<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n t\u00ednh kh\u1ea5u tr\u1eeb u\u1ed1n, c\u1ed9ng u\u1ed1n v\u00e0 chi\u1ec1u d\u00e0i m\u00e9p gi\u1ea3 \u0111\u1ecbnh h\u00ecnh h\u1ecdc 90\u00b0 th\u1eadt m\u00e0 kh\u00f4ng t\u00ednh \u0111\u1ebfn \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c 1.5\u00b0, th\u00ec m\u1ecdi m\u00e9p \u0111\u1ec1u d\u00e0i h\u01a1n. Kh\u00f4ng nhi\u1ec1u, ch\u1ec9 v\u1eeba \u0111\u1ee7 \u0111\u1ec3 l\u00e0m h\u1ecfng l\u1eafp r\u00e1p.<\/p>\n\n\n\n

U\u1ed1n v\u01b0\u1ee3t l\u00e0 c\u00f4ng c\u1ee5 th\u00f4 m\u00e0 ai c\u0169ng d\u00f9ng. L\u1eadp tr\u00ecnh 88.5\u00b0 \u0111\u1ec3 sau khi gi\u00e3n h\u1ed3i \u0111\u1ea1t 90\u00b0. Nh\u01b0ng c\u00e1i b\u1eaby l\u00e0: m\u1ee9c b\u00f9 \u0111\u00f3 kh\u00f4ng c\u1ed1 \u0111\u1ecbnh gi\u1eefa c\u00e1c c\u00f4ng vi\u1ec7c. M\u1edf khu\u00f4n ra 1.250\u2033, c\u00f9ng v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c 2\u00b0 ho\u1eb7c h\u01a1n v\u00ec b\u00e1n k\u00ednh l\u1edbn h\u01a1n l\u00e0m gi\u1ea3m bi\u1ebfn d\u1ea1ng d\u1ebbo v\u00e0 l\u01b0u l\u1ea1i nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i h\u01a1n trong ti\u1ebft di\u1ec7n. V\u1eadt li\u1ec7u m\u1ecfng? \u0110\u00e0n h\u1ed3i ng\u01b0\u1ee3c nhi\u1ec1u h\u01a1n. B\u00e1n k\u00ednh b\u00ean trong l\u1edbn h\u01a1n? \u0110\u00e0n h\u1ed3i ng\u01b0\u1ee3c nhi\u1ec1u h\u01a1n. M\u1ed1i quan h\u1ec7 \u0111\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh v\u1edbi th\u00e9p c\u00e1n ngu\u1ed9i, n\u01a1i \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c t\u0103ng theo t\u1ef7 l\u1ec7 b\u00e1n k\u00ednh\u2011so\u2011v\u1edbi\u2011b\u1ec1 d\u00e0y, kh\u00f4ng ch\u1ec9 theo \u0111\u1ed9 b\u1ec1n.<\/p>\n\n\n\n

V\u00ec v\u1eady, n\u1ebfu b\u1ea1n t\u00ednh kh\u1ea5u tr\u1eeb u\u1ed1n d\u1ef1a tr\u00ean g\u00f3c danh ngh\u0129a 90\u00b0 r\u1ed3i t\u1ef1 tay th\u00eam 1.5\u00b0 u\u1ed1n v\u01b0\u1ee3t ngay t\u1ea1i m\u00e1y, th\u00ec b\u1ea1n \u0111\u00e3 t\u00e1ch \u0111\u00f4i ph\u1ea7n to\u00e1n h\u1ecdc c\u1ee7a m\u00ecnh. B\u1ea3n tr\u1ea3i ph\u1eb3ng ngh\u0129 m\u1ed9t ki\u1ec3u. C\u01a1 c\u1ea5u \u00e9p l\u1ea1i l\u00e0m ki\u1ec3u kh\u00e1c.<\/p>\n\n\n\n

Con s\u1ed1 n\u00e0o \u0111ang \u0111i\u1ec1u khi\u1ec3n h\u00ecnh h\u1ecdc c\u1ee7a b\u1ea1n\u2014g\u00f3c in hay g\u00f3c m\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 l\u1eadp tr\u00ecnh?<\/p>\n\n\n\n

\u0110\u1ed9 b\u1ec1n k\u00e9o v\u00e0 t\u1ef7 s\u1ed1 ch\u1ea3y: Thu\u1ed9c t\u00ednh n\u00e0o \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u nh\u1ea5t?<\/h3>\n\n\n\n

H\u00e3y thay th\u00e9p cacbon nh\u1eb9 b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 304. C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng khu\u00f4n. C\u00f9ng g\u00f3c \u0111\u00edch.<\/p>\n\n\n\n

B\u1ea1n s\u1ebd th\u1ea5y \u0111\u1ed9 h\u1ed3i l\u00f2 xo l\u1edbn h\u01a1n. Ai c\u0169ng v\u1eady. B\u1ea3n n\u0103ng l\u00e0 \u0111\u1ed5 l\u1ed7i cho \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00ec \u0111\u00f3 l\u00e0 con s\u1ed1 l\u1edbn nh\u1ea5t tr\u00ean ch\u1ee9ng ch\u1ec9. \u0110\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n, v\u1eadt li\u1ec7u ch\u1ed1ng l\u1ea1i nhi\u1ec1u h\u01a1n, g\u00f3c m\u1edf ra nhi\u1ec1u h\u01a1n.<\/p>\n\n\n\n

Nh\u01b0ng h\u00e3y xem \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi b\u1ea1n ch\u1ea1y hai m\u1ebb th\u00e9p \u201cgi\u1ed1ng h\u1ec7t nhau\u201d lo\u1ea1i 60 KSI. M\u1ed9t m\u1ebb u\u1ed1n r\u1ea5t \u1ed5n. M\u1ebb kia b\u1eadt ng\u01b0\u1ee3c th\u00eam 1 \u0111\u1ed9. \u0110\u1ed9 b\u1ec1n k\u00e9o kh\u00f4ng t\u0103ng th\u00eam 10 KSI ch\u1ec9 sau m\u1ed9t \u0111\u00eam. C\u00e1i thay \u0111\u1ed5i l\u00e0 t\u1ef7 s\u1ed1 ch\u1ea3y so v\u1edbi k\u00e9o\u2014t\u1ee9c t\u1ef7 s\u1ed1 ch\u1ea3y.<\/p>\n\n\n\n

\u0110\u1ed9 h\u1ed3i l\u00f2 xo \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi t\u1ec9 l\u1ec7 gi\u1eefa bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i v\u00e0 bi\u1ebfn d\u1ea1ng d\u1ebbo. V\u1eadt li\u1ec7u c\u00f3 gi\u1edbi h\u1ea1n ch\u1ea3y cao so v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o s\u1ebd b\u1eaft \u0111\u1ea7u bi\u1ebfn d\u1ea1ng d\u1ebbo mu\u1ed9n h\u01a1n v\u00e0 l\u01b0u tr\u1eef nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i h\u01a1n tr\u01b0\u1edbc khi ch\u1ea3y s\u00e2u. N\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u00f3 ch\u00ednh l\u00e0 th\u1ee9 l\u00e0m g\u00f3c m\u1edf ra khi t\u1ea3i \u0111\u01b0\u1ee3c th\u00e1o ra.<\/p>\n\n\n\n

H\u00ecnh h\u1ecdc khu\u1ebfch \u0111\u1ea1i hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3. L\u1ed7 khu\u00f4n l\u1edbn h\u01a1n t\u1ea1o ra b\u00e1n k\u00ednh trong l\u1edbn h\u01a1n. B\u00e1n k\u00ednh l\u1edbn h\u01a1n ngh\u0129a l\u00e0 bi\u1ebfn d\u1ea1ng d\u1ebbo nh\u1ecf h\u01a1n cho c\u00f9ng m\u1ed9t g\u00f3c. Bi\u1ebfn d\u1ea1ng d\u1ebbo th\u1ea5p h\u01a1n ngh\u0129a l\u00e0 t\u1ec9 l\u1ec7 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i cao h\u01a1n. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao u\u1ed1n theo b\u00e1n k\u00ednh v\u1edbi khu\u00f4n V r\u1ed9ng c\u00f3 th\u1ec3 b\u1eadt ng\u01b0\u1ee3c m\u1ea1nh m\u1ebd so v\u1edbi c\u00e1c thi\u1ebft l\u1eadp ch\u1eb7t 6\u00d7.<\/p>\n\n\n\n

Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf t\u1eeb th\u00f9ng ph\u1ebf: B\u1ea1n t\u1eebng d\u00f9ng khu\u00f4n r\u1ed9ng \u0111\u1ec3 gi\u1ea3m l\u1ef1c \u00e9p, \u0111\u1ea1t \u0111\u00fang g\u00f3c tr\u00ean m\u00e0n h\u00ecnh, r\u1ed3i ph\u1ea3i \u0111u\u1ed5i theo 3\u00b0 \u0111\u1ed9 b\u1eadt ng\u01b0\u1ee3c tr\u00ean m\u1ed9t chi ti\u1ebft d\u00e0i 10 foot ch\u01b0a? \u0110\u00f3 kh\u00f4ng ph\u1ea3i xui x\u1ebbo. \u0110\u00f3 l\u00e0 do bi\u1ebfn d\u1ea1ng d\u1ebbo th\u1ea5p trao l\u1ea1i quy\u1ec1n ki\u1ec3m so\u00e1t cho \u0111\u00e0n h\u1ed3i.<\/p>\n\n\n\n

V\u1eady y\u1ebfu t\u1ed1 n\u00e0o quan tr\u1ecdng h\u01a1n\u2014nh\u1eefng con s\u1ed1 \u0111\u1ed9 b\u1ec1n tr\u00ean gi\u1ea5y hay t\u1ef7 s\u1ed1 b\u00e1n k\u00ednh so v\u1edbi \u0111\u1ed9 d\u00e0y m\u00e0 b\u1ea1n ch\u1ecdn v\u1edbi d\u1ee5ng c\u1ee5 c\u1ee7a m\u00ecnh? Trong th\u1ef1c t\u1ebf, h\u00ecnh h\u1ecdc \u0111\u1ecbnh ra n\u1ec1n t\u1ea3ng. T\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh c\u1ee7a ph\u1ea3n l\u1ef1c.<\/p>\n\n\n\n

V\u00e0 n\u1ebfu ph\u1ea3n l\u1ef1c \u0111\u00f3 thay \u0111\u1ed5i, \u0111i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra v\u1edbi m\u1ecdi con s\u1ed1 ph\u00f4i ph\u1eb3ng m\u00e0 b\u1ea1n \u0111ang tin t\u01b0\u1edfng?<\/p>\n\n\n\n

C\u00e1ch \u0111\u1ed9 h\u1ed3i l\u00f2 xo kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u00e2m th\u1ea7m l\u00e0m sai l\u1ec7ch ph\u00e9p tr\u1eeb chi\u1ec1u u\u1ed1n v\u00e0 h\u1ec7 s\u1ed1 K c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n

H\u00e3y l\u1ea5y v\u00ed d\u1ee5 m\u1ed9t k\u00eanh c\u00f3 b\u1ed1n g\u00f3c u\u1ed1n. Kh\u00f4ng c\u00f3 m\u00e9p g\u1eadp ng\u01b0\u1ee3c. M\u1ed7i g\u00f3c b\u1eadt ng\u01b0\u1ee3c 2\u00b0. Kh\u00f4ng c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t. \u0110\u00f3 l\u00e0 chuy\u1ec7n b\u00ecnh th\u01b0\u1eddng trong v\u00e0i c\u00f4ng vi\u1ec7c v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y th\u1eed ch\u1ed3ng ch\u00fang l\u1ea1i.<\/p>\n\n\n\n

B\u1ed1n g\u00f3c, m\u1ed7i g\u00f3c l\u1ec7ch 2\u00b0, ngh\u0129a l\u00e0 m\u00e9p cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u1ec7ch 8\u00b0 so v\u1edbi g\u1ed1c tham chi\u1ebfu \u0111\u1ea7u ti\u00ean n\u1ebfu b\u1ea1n kh\u00f4ng b\u00f9 tr\u1eeb ch\u00ednh x\u00e1c \u1edf m\u1ed7i b\u01b0\u1edbc. T\u00f4i t\u1eebng th\u1ea5y nh\u1eefng chi ti\u1ebft m\u00e0 m\u1eabu \u0111\u1ea7u ti\u00ean tr\u00f4ng \u201cg\u1ea7n \u0111\u00fang\u201d \u1edf t\u1eebng g\u00f3c, nh\u01b0ng sai s\u1ed1 t\u00edch l\u0169y l\u00e0m cho to\u00e0n b\u1ed9 c\u1ee5m b\u1ecb xo\u1eafn nh\u01b0 c\u00e1nh qu\u1ea1t.<\/p>\n\n\n\n

Ph\u00e9p tr\u1eeb chi\u1ec1u u\u1ed1n v\u00e0 h\u1ec7 s\u1ed1 K gi\u1ea3 \u0111\u1ecbnh c\u00f3 b\u00e1n k\u00ednh trong v\u00e0 g\u00f3c cu\u1ed1i c\u00f9ng \u0111\u00e3 bi\u1ebft. N\u1ebfu \u0111\u1ed9 h\u1ed3i l\u00f2 xo l\u00e0m thay \u0111\u1ed5i m\u1ed9t trong hai m\u00e0 b\u1ea1n kh\u00f4ng c\u1eadp nh\u1eadt, v\u1ecb tr\u00ed tr\u1ee5c trung h\u00f2a s\u1ebd d\u1ecbch trong th\u1ef1c t\u1ebf nh\u01b0ng kh\u00f4ng trong ph\u1ea7n m\u1ec1m. Chi\u1ec1u d\u00e0i ph\u00f4i b\u1ea1n c\u1eaft d\u1ef1a tr\u00ean chi\u1ec1u d\u00e0i cung nh\u1ecf h\u01a1n th\u1ef1c t\u1ebf sau khi v\u1eadt li\u1ec7u gi\u00e3n ra. Nh\u00e2n sai s\u1ed1 \u0111\u00f3 qua nhi\u1ec1u l\u1ea7n u\u1ed1n th\u00ec dung sai s\u1ebd bi\u1ebfn m\u1ea5t r\u1ea5t nhanh.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c h\u1ec7 s\u1ed1 K \u00e1p d\u1ee5ng cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p l\u00e0 t\u01b0\u1edfng t\u01b0\u1ee3ng. Thay \u0111\u1ed5i b\u1ec1 r\u1ed9ng khu\u00f4n, b\u1ea1n thay \u0111\u1ed5i b\u00e1n k\u00ednh. Thay \u0111\u1ed5i b\u00e1n k\u00ednh, b\u1ea1n thay \u0111\u1ed5i h\u1ed3i l\u00f2 xo. Thay \u0111\u1ed5i h\u1ed3i l\u00f2 xo, b\u1ea1n thay \u0111\u1ed5i g\u00f3c cu\u1ed1i c\u00f9ng v\u00e0 l\u01b0\u1ee3ng b\u00f9 u\u1ed1n hi\u1ec7u d\u1ee5ng. N\u1ebfu h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n kh\u00f4ng kh\u00e9p k\u00edn v\u00f2ng l\u1eb7p \u0111\u00f3\u2014\u0111o g\u00f3c v\u00e0 b\u00e1n k\u00ednh sau khi v\u1eadt li\u1ec7u gi\u00e3n, r\u1ed3i n\u1ea1p l\u1ea1i v\u00e0o ph\u00e9p tr\u1eeb\u2014th\u00ec b\u1ea1n \u0111ang c\u1eaft ph\u00f4i cho m\u1ed9t chi ti\u1ebft ch\u1ec9 t\u1ed3n t\u1ea1i khi b\u1ecb \u00e9p d\u01b0\u1edbi 200 t\u1ea5n.<\/p>\n\n\n\n

M\u00e1y ch\u1ea5n l\u00e0 chi\u1ebfc m\u00e1y s\u1ef1 th\u1eadt 200 t\u1ea5n. N\u00f3 cho b\u1ea1n bi\u1ebft v\u1eadt li\u1ec7u th\u1ef1c s\u1ef1 s\u1ebd l\u00e0m g\u00ec. Th\u00f9ng ph\u1ebf l\u00e0 v\u1ecb gi\u00e1m kh\u1ea3o cu\u1ed1i c\u00f9ng xem b\u1ea1n c\u00f3 l\u1eafng nghe hay kh\u00f4ng.<\/p>\n\n\n\n

N\u1ebfu b\u00e1n k\u00ednh c\u00f2n l\u1ea1i sau khi d\u1ee1 t\u1ea3i l\u00e0 c\u00e1i duy nh\u1ea5t quan tr\u1ecdng, t\u1ea1i sao b\u1ea1n v\u1eabn thi\u1ebft k\u1ebf ph\u00f4i ph\u1eb3ng d\u1ef1a tr\u00ean b\u00e1n k\u00ednh bi\u1ebfn m\u1ea5t ngay khi \u0111\u1ea7u \u00e9p nh\u1ea5c l\u00ean?<\/p>\n\n\n\n

T\u1eeb \u0111o\u00e1n m\u00f2 \u0111\u1ebfn ki\u1ec3m so\u00e1t: Ph\u01b0\u01a1ng ph\u00e1p 4 b\u01b0\u1edbc \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n b\u00e1n k\u00ednh u\u1ed1n trong<\/h2>\n\n\n\n

T\u00f4i \u0111\u00e3 \u0111\u1ee9ng tr\u01b0\u1edbc m\u1ed9t chi ti\u1ebft gi\u00e1 \u0111\u1ee1 d\u00e0y 10 gauge, khu\u00f4n V 1.000\u2033 b\u00ean d\u01b0\u1edbi, nh\u00ecn m\u1eabu \u0111\u1ea7u ti\u00ean ra \u1edf g\u00f3c 92\u00b0 trong khi b\u1ea3n v\u1ebd y\u00eau c\u1ea7u 90\u00b0. L\u1eadp tr\u00ecnh vi\u00ean kh\u1eb3ng \u0111\u1ecbnh ph\u00f4i ph\u1eb3ng l\u00e0 \u0111\u00fang. M\u00e1y t\u00ednh kh\u1eb3ng \u0111\u1ecbnh b\u00e1n k\u00ednh trong l\u00e0 \u201cch\u00ednh x\u00e1c.\u201d Nh\u01b0ng th\u00f9ng ph\u1ebf th\u00ec ch\u1eb3ng quan t\u00e2m.<\/p>\n\n\n\n

B\u1ea1n mu\u1ed1n bi\u1ebft c\u00e1ch \u0111\u01b0a d\u1eef li\u1ec7u h\u1ed3i l\u00f2 xo th\u1ef1c v\u00e0o l\u1ea1i ph\u00e9p tr\u1eeb chi\u1ec1u u\u1ed1n v\u00e0 h\u1ec7 s\u1ed1 K \u0111\u1ec3 ph\u00f4i ph\u1eb3ng kh\u1edbp v\u1edbi chi ti\u1ebft sau khi gi\u00e3n. T\u1ed1t. B\u1edfi v\u00ec cho \u0111\u1ebfn khi b\u1ea1n kh\u00e9p \u0111\u01b0\u1ee3c v\u00f2ng l\u1eb7p \u0111\u00f3, b\u1ea1n ch\u01b0a ph\u1ea3i \u0111ang t\u00ednh to\u00e1n\u2014b\u1ea1n \u0111ang \u0111\u00e1nh c\u01b0\u1ee3c v\u1edbi t\u1ea5m kim lo\u1ea1i.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00f4i s\u1eed d\u1ee5ng tr\u00ean m\u1ed9t \u201cc\u1ed7 m\u00e1y s\u1ef1 th\u1eadt\u201d 200 t\u1ea5n \u2013 n\u00f3 ch\u1eb3ng h\u1ec1 ki\u00ean nh\u1eabn v\u1edbi nh\u1eefng c\u00f4ng th\u1ee9c \u0111\u1eb9p \u0111\u1ebd.<\/p>\n\n\n\n

B\u01b0\u1edbc 1: B\u1eaft \u0111\u1ea7u v\u1edbi t\u1ef7 l\u1ec7 c\u1ee7a khu\u00f4n \u2013 kh\u00f4ng ph\u1ea3i b\u00e1n k\u00ednh b\u1ea1n \u201cmu\u1ed1n\u201d th\u1ea5y tr\u00ean b\u1ea3n v\u1ebd.<\/h3>\n\n\n\n

\u0110\u1eb7t m\u1ed9t mi\u1ebfng th\u00e9p m\u1ec1m d\u00e0y 0.125\u2033 l\u00ean hai khu\u00f4n: m\u1ed9t khu\u00f4n ch\u1eef V 0.750\u2033, m\u1ed9t khu\u00f4n ch\u1eef V 1.000\u2033. C\u00f9ng m\u1ed9t ch\u00e0y, c\u00f9ng g\u00f3c m\u1ee5c ti\u00eau. C\u00e1c chi ti\u1ebft kh\u00f4ng cho ra c\u00f9ng b\u00e1n k\u00ednh trong. Kh\u00f4ng th\u1ec3. \u0110\u1ed9 m\u1edf c\u1ee7a khu\u00f4n quy\u1ebft \u0111\u1ecbnh h\u00ecnh h\u1ecdc c\u1ee7a c\u00e1ch t\u1ea5m kim lo\u1ea1i \u0111\u01b0\u1ee3c ph\u00e9p ch\u1ea3y.<\/p>\n\n\n\n

Trong u\u1ed1n kh\u00ed, \u0111\u1ed9 m\u1edf khu\u00f4n ph\u1ea7n l\u1edbn chi ph\u1ed1i b\u00e1n k\u00ednh trong k\u1ebft qu\u1ea3. M\u1ed9t quy t\u1eafc kh\u1edfi \u0111\u1ea7u ph\u1ed5 bi\u1ebfn trong th\u1ef1c t\u1ebf l\u00e0 t\u1ef7 l\u1ec7 V\u2011v\u1edbi\u2011\u0111\u1ed9\u2011d\u00e0y 6:1 cho th\u00e9p m\u1ec1m m\u1ecfng, 8:1 khi \u0111\u1ed9 d\u00e0y t\u0103ng l\u00ean. V\u1eady v\u1eadt li\u1ec7u 0.125\u2033? Th\u00f4ng th\u01b0\u1eddng b\u1ea1n d\u00f9ng khu\u00f4n V trong kho\u1ea3ng 0.750\u2033 \u0111\u1ebfn 1.000\u2033. T\u1ef7 l\u1ec7 \u0111\u00f3 kh\u00f4ng ph\u1ea3i g\u1ee3i \u00fd \u2013 n\u00f3 l\u00e0 v\u00f9ng bi\u1ebfn d\u1ea1ng cho ph\u00e9p. Qu\u00e1 h\u1eb9p th\u00ec c\u00f3 nguy c\u01a1 n\u1ee9t. Qu\u00e1 r\u1ed9ng th\u00ec gi\u1ea3m bi\u1ebfn d\u1ea1ng d\u1ebbo v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c m\u1ea1nh h\u01a1n.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y xem \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi ai \u0111\u00f3 b\u1eaft \u0111\u1ea7u t\u1eeb b\u1ea3n v\u1ebd. \u201cT\u00f4i c\u1ea7n b\u00e1n k\u00ednh 0.125.\u201d \u0110\u01b0\u1ee3c th\u00f4i. Nh\u01b0ng n\u1ebfu b\u1ea1n ch\u1ecdn khu\u00f4n V 1.250\u2033 \u0111\u1ec3 ti\u1ebft ki\u1ec7m l\u1ef1c \u00e9p, b\u00e1n k\u00ednh u\u1ed1n kh\u00ed t\u1ef1 nhi\u00ean c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 n\u1eb1m g\u1ea7n 0.200\u2033+ tu\u1ef3 theo v\u1eadt li\u1ec7u. Kh\u00f4ng c\u00f3 s\u1ef1 t\u01b0\u1edfng t\u01b0\u1ee3ng n\u00e0o thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3. H\u00ecnh h\u1ecdc \u0111\u00e3 \u0111\u1ecbnh s\u1eb5n.<\/p>\n\n\n\n

Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf t\u1eeb th\u00f9ng ph\u1ebf li\u1ec7u: T\u00f4i t\u1eebng th\u1ea5y c\u00e1c x\u01b0\u1edfng c\u1ed1 d\u00f9ng khu\u00f4n r\u1ed9ng v\u00ec n\u00f3 \u0111\u00e3 s\u1eb5n tr\u00ean m\u00e1y, \u0111\u1ea1t g\u00f3c theo m\u00e0n h\u00ecnh, r\u1ed3i nh\u00ecn th\u1ea5y m\u00e9p g\u1eadp d\u00e0i ra v\u00ec b\u00e1n k\u00ednh sau khi th\u01b0 gi\u00e3n l\u1edbn h\u01a1n so v\u1edbi b\u1ea3n ph\u1eb3ng d\u1ef1 t\u00ednh. C\u00f4ng th\u1ee9c kh\u00f4ng sai. Gi\u1ea3 \u0111\u1ecbnh ban \u0111\u1ea7u m\u1edbi sai.<\/p>\n\n\n\n

N\u1ebfu \u0111\u1ed9 r\u1ed9ng khu\u00f4n \u0111\u1eb7t ra \u0111i\u1ec1u ki\u1ec7n bi\u1ebfn d\u1ea1ng, t\u1ea1i sao b\u1ea1n l\u1ea1i b\u1eaft \u0111\u1ea7u v\u1edbi b\u00e1n k\u00ednh m\u1ee5c ti\u00eau t\u00e1ch r\u1eddi kh\u1ecfi khu\u00f4n \u0111\u00f3?<\/p>\n\n\n\n

B\u01b0\u1edbc 2: \u01af\u1edbc t\u00ednh b\u00e1n k\u00ednh l\u00fd thuy\u1ebft t\u1eeb \u0111\u1ed9 m\u1edf V (v\u00e0 ch\u1ea5p nh\u1eadn n\u00f3 ch\u1ec9 l\u00e0 gi\u00e1 tr\u1ecb c\u01a1 s\u1edf)<\/h3>\n\n\n\n

M\u1ed9t khi khu\u00f4n \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn, gi\u1edd b\u1ea1n m\u1edbi \u0111\u01b0\u1ee3c ph\u00e9p n\u00f3i \u0111\u1ebfn to\u00e1n h\u1ecdc.<\/p>\n\n\n\n

U\u1ed1n kh\u00ed kh\u00f4ng khi\u1ebfn m\u0169i ch\u00e0y \u0111i ho\u00e0n to\u00e0n v\u00e0o ch\u1eef V. Ch\u00e0y \u0111\u1ea9y t\u1ea5m kim lo\u1ea1i xu\u1ed1ng gi\u1eefa hai vai khu\u00f4n, nh\u01b0ng kh\u00f4ng \u00e9p v\u1eadt li\u1ec7u ho\u00e0n to\u00e0n v\u00e0o \u0111\u00e1y ch\u1eef V. T\u1ea5m kim lo\u1ea1i t\u1ea1o c\u1ea7u n\u1ed1i gi\u1eefa hai vai. C\u1ea7u n\u1ed1i \u0111\u00f3 t\u1ea1o n\u00ean m\u1ed1i quan h\u1ec7 c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n gi\u1eefa \u0111\u1ed9 m\u1edf V v\u00e0 b\u00e1n k\u00ednh trong khi ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n

V\u1edbi th\u00e9p m\u1ec1m, m\u1ed9t gi\u00e1 tr\u1ecb c\u01a1 s\u1edf ph\u1ed5 bi\u1ebfn l\u00e0 b\u00e1n k\u00ednh trong khi ch\u1ecbu t\u1ea3i s\u1ebd n\u1eb1m kho\u1ea3ng 16\u201320% \u0111\u1ed9 m\u1edf ch\u1eef V. V\u1eady khu\u00f4n V 1.000\u2033 c\u00f3 th\u1ec3 cho b\u00e1n k\u00ednh kho\u1ea3ng 0.160\u2033\u20130.200\u2033 khi \u0111\u1ea7u \u00e9p \u0111ang h\u1ea1 xu\u1ed1ng. Kh\u00f4ng ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i. Ch\u1ec9 l\u00e0 kho\u1ea3ng. V\u00ec \u0111\u1ed9 d\u00e0y, \u0111\u1ed9 b\u1ec1n v\u00e0 b\u00e1n k\u00ednh vai khu\u00f4n \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng nh\u1eb9.<\/p>\n\n\n\n

Ch\u00fa \u00fd nh\u1eefng g\u00ec ta v\u1eeba l\u00e0m: ta li\u00ean h\u1ec7 b\u00e1n k\u00ednh v\u1edbi \u0111\u1ed9 r\u1ed9ng khu\u00f4n tr\u01b0\u1edbc, ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u1edbi (V \u2212 MT)\/2, c\u0169ng kh\u00f4ng ph\u1ea3i v\u1edbi m\u0169i ch\u00e0y. C\u00f4ng th\u1ee9c c\u0169 (V \u2212 MT)\/2 c\u00f3 th\u1ec3 cho ra con s\u1ed1 tr\u00f4ng c\u00f3 v\u1ebb ch\u00ednh x\u00e1c, nh\u01b0ng n\u1ebfu t\u1ef7 l\u1ec7 V\/T thay \u0111\u1ed5i t\u1eeb 6:1 sang 8:1, ph\u00e2n b\u1ed1 bi\u1ebfn d\u1ea1ng c\u1ee7a b\u1ea1n thay \u0111\u1ed5i v\u00e0 k\u1ebft qu\u1ea3 tr\u00f4ng \u201cg\u1ecdn g\u00e0ng\u201d \u0111\u00f3 s\u1ebd nhanh ch\u00f3ng l\u1ec7ch kh\u1ecfi th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

V\u00e0 \u0111\u00e2y v\u1eabn l\u00e0 khi \u0111ang ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n

B\u00e1n k\u00ednh c\u01a1 s\u1edf l\u00e0 b\u1ee9c \u1ea3nh ch\u1ee5p t\u1ea1i 200 t\u1ea5n. Chi ti\u1ebft b\u1ea1n giao l\u00e0 chi ti\u1ebft sau khi \u0111\u1ea7u \u00e9p n\u00e2ng l\u00ean. V\u1eady \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i d\u1ef1 tr\u1eef \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng?<\/p>\n\n\n\n

B\u01b0\u1edbc 3: \u00c1p d\u1ee5ng b\u00f9 tr\u1eeb \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c theo v\u1eadt li\u1ec7u \u0111\u1ec3 t\u00ecm b\u00e1n k\u00ednh th\u01b0 gi\u00e3n th\u1ef1c t\u1ebf<\/h3>\n\n\n\n

L\u1ea5y th\u00e9p c\u00e1n ngu\u1ed9i d\u00e0y 0.125\u2033 trong khu\u00f4n V 1.000\u2033. Khi ch\u1ecbu t\u1ea3i, b\u1ea1n \u0111o \u0111\u01b0\u1ee3c g\u00f3c 90\u00b0. Th\u1ea3 ra, b\u1ea1n th\u1ea5y 91.5\u00b0. Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c 1.5\u00b0 n\u00e0y cho b\u1ea1n bi\u1ebft \u0111i\u1ec1u s\u00e2u h\u01a1n: b\u00e1n k\u00ednh c\u0169ng \u0111\u00e3 t\u0103ng l\u00ean.<\/p>\n\n\n\n

Khi g\u00f3c m\u1edf ra, b\u00e1n k\u00ednh trong t\u0103ng l\u00ean. Tr\u1ee5c trung h\u00f2a d\u1ecbch nh\u1eb9 v\u00ec ph\u1ea7n bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i h\u1ed3i ph\u1ee5c. V\u1eadt li\u1ec7u c\u00f3 gi\u1edbi h\u1ea1n ch\u1ea3y cao so v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o s\u1ebd t\u00edch tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i nhi\u1ec1u h\u01a1n tr\u01b0\u1edbc khi ch\u1ea3y d\u1ebbo ho\u00e0n to\u00e0n. Inox th\u01b0\u1eddng s\u1ebd b\u1eadt ng\u01b0\u1ee3c m\u1ea1nh h\u01a1n th\u00e9p m\u1ec1m trong c\u00f9ng khu\u00f4n. Nh\u00f4m c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n b\u1ea5t ng\u1edd khi t\u1ef7 l\u1ec7 b\u00e1n k\u00ednh\u2011v\u1edbi\u2011\u0111\u1ed9\u2011d\u00e0y t\u0103ng.<\/p>\n\n\n\n

Nh\u01b0ng \u0111\u00e2y l\u00e0 ph\u1ea7n m\u00e0 s\u00e1ch gi\u00e1o khoa th\u01b0\u1eddng b\u1ecf qua: \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c t\u1ef7 l\u1ec7 m\u1ea1nh v\u1edbi t\u1ef7 l\u1ec7 b\u00e1n k\u00ednh\u2011v\u1edbi\u2011\u0111\u1ed9\u2011d\u00e0y. M\u1edf khu\u00f4n r\u1ed9ng h\u01a1n, b\u1ea1n t\u0103ng b\u00e1n k\u00ednh trong. T\u0103ng b\u00e1n k\u00ednh, b\u1ea1n gi\u1ea3m bi\u1ebfn d\u1ea1ng d\u1ebbo cho c\u00f9ng m\u1ed9t g\u00f3c. Gi\u1ea3m bi\u1ebfn d\u1ea1ng d\u1ebbo ngh\u0129a l\u00e0 ph\u1ea7n \u0111\u00e0n h\u1ed3i ph\u1ee5c h\u1ed3i l\u1edbn h\u01a1n. \u0110\u00e0n h\u1ed3i ng\u01b0\u1ee3c nhi\u1ec1u h\u01a1n. \u0110\u00f3 l\u00e0 h\u00ecnh h\u1ecdc khu\u1ebfch \u0111\u1ea1i h\u00e0nh vi v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

V\u1eady tr\u00ecnh t\u1ef1 b\u00f9 tr\u1eeb s\u1ebd nh\u01b0 sau:<\/p>\n\n\n\n

    \n
  1. Ch\u1ecdn khu\u00f4n (x\u00e1c \u0111\u1ecbnh t\u1ef7 l\u1ec7 V\/T v\u00e0 \u0111i\u1ec1u ki\u1ec7n bi\u1ebfn d\u1ea1ng).<\/li>\n\n\n\n
  2. \u01af\u1edbc t\u00ednh b\u00e1n k\u00ednh d\u01b0\u1edbi t\u1ea3i t\u1eeb V.<\/li>\n\n\n\n
  3. \u01af\u1edbc t\u00ednh g\u00f3c h\u1ed3i \u0111\u00e0n h\u1ed3i d\u1ef1a tr\u00ean c\u1ea5p v\u1eadt li\u1ec7u v\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa b\u00e1n k\u00ednh v\u1edbi \u0111\u1ed9 d\u00e0y.<\/li>\n\n\n\n
  4. Chuy\u1ec3n g\u00f3c t\u0103ng th\u00eam \u0111\u00f3 th\u00e0nh b\u00e1n k\u00ednh th\u01b0 gi\u00e3n \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh.<\/li>\n<\/ol>\n\n\n\n

    Gi\u1edd h\u00e3y c\u1eadp nh\u1eadt gi\u00e1 tr\u1ecb kh\u1ea5u tr\u1eeb u\u1ed1n v\u00e0 h\u1ec7 s\u1ed1 K c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u00e1n k\u00ednh v\u00e0 g\u00f3c th\u01b0 gi\u00e3n cu\u1ed1i c\u00f9ng\u2014kh\u00f4ng ph\u1ea3i h\u00ecnh h\u1ecdc d\u01b0\u1edbi t\u1ea3i. \u0110\u00f3 l\u00e0 v\u00f2ng l\u1eb7p kh\u00e9p k\u00edn. N\u1ebfu h\u1ed3i \u0111\u00e0n h\u1ed3i \u0111o \u0111\u01b0\u1ee3c l\u00e0 1,5\u00b0, m\u1eabu ph\u1eb3ng c\u1ee7a b\u1ea1n ph\u1ea3i ph\u1ea3n \u00e1nh chi\u1ec1u d\u00e0i cung c\u1ee7a chi ti\u1ebft \u1edf 90\u00b0 th\u01b0 gi\u00e3n, kh\u00f4ng ph\u1ea3i 88,5\u00b0 d\u01b0\u1edbi t\u1ea3i.<\/p>\n\n\n\n

    X\u00e9t r\u1eb1ng danh m\u1ee5c s\u1ea3n ph\u1ea9m c\u1ee7a CN-HAWE l\u00e0 CNC 100% v\u00e0 bao ph\u1ee7 c\u00e1c k\u1ecbch b\u1ea3n cao c\u1ea5p trong c\u1eaft laser, u\u1ed1n, r\u00e3nh, c\u1eaft, d\u00e0nh cho \u0111\u1ed9c gi\u1ea3 mu\u1ed1n t\u00e0i li\u1ec7u chi ti\u1ebft, T\u1edd r\u01a1i<\/a> l\u00e0 m\u1ed9t t\u00e0i nguy\u00ean h\u1eefu \u00edch \u0111\u1ec3 theo d\u00f5i sau.<\/p>\n\n\n\n

    Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf th\u00f9ng ph\u1ebf li\u1ec7u: T\u00f4i \u0111\u00e3 th\u1ea5y c\u00e1c k\u00eanh c\u00f3 b\u1ed1n ch\u1ed7 u\u1ed1n sai l\u1ec7ch chi\u1ec1u r\u1ed9ng t\u1ed5ng th\u1ec3 h\u01a1n 0,060\u2033 ch\u1ec9 v\u00ec ng\u01b0\u1eddi l\u1eadp tr\u00ecnh s\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 K c\u1ed1 \u0111\u1ecbnh t\u1eeb b\u1ea3ng trong khi t\u1ef7 l\u1ec7 khu\u00f4n \u0111\u00e3 thay \u0111\u1ed5i. C\u00f9ng v\u1eadt li\u1ec7u. Kh\u00e1c V. Kh\u00e1c b\u00e1n k\u00ednh th\u01b0 gi\u00e3n. C\u00e1c ph\u00e9p t\u00ednh kh\u00f4ng h\u1ec1 bi\u1ebft \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

    N\u1ebfu h\u1ed3i \u0111\u00e0n h\u1ed3i ph\u1ee5 thu\u1ed9c c\u1ea3 v\u00e0o \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u v\u00e0 b\u00e1n k\u00ednh b\u1ea1n t\u1ea1o ra b\u1eb1ng khu\u00f4n, t\u1ea1i sao m\u1ed9t h\u1ec7 s\u1ed1 K t\u0129nh duy nh\u1ea5t l\u1ea1i c\u00f3 th\u1ec3 \u0111\u00fang cho m\u1ecdi c\u00f4ng vi\u1ec7c?<\/p>\n\n\n\n

    B\u01b0\u1edbc 4: X\u00e1c th\u1ef1c b\u1eb1ng u\u1ed1n th\u1eed c\u00f3 ki\u1ec3m so\u00e1t thay v\u00ec th\u1eed v\u00e0 sai tr\u00ean to\u00e0n b\u1ed9 s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n

    C\u1eaft m\u1ed9t d\u1ea3i r\u1ed9ng 2\u2033. C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng h\u01b0\u1edbng h\u1ea1t v\u1eadt li\u1ec7u nh\u01b0 s\u1ea3n xu\u1ea5t. U\u1ed1n trong khu\u00f4n \u0111\u00e3 ch\u1ecdn \u0111\u1ebfn g\u00f3c v\u01b0\u1ee3t m\u1ee9c m\u00e0 b\u1ea1n l\u1eadp tr\u00ecnh\u2014gi\u1ea3 s\u1eed 88,5\u00b0 n\u1ebfu b\u1ea1n d\u1ef1 \u0111o\u00e1n h\u1ed3i \u0111\u00e0n h\u1ed3i 1,5\u00b0. \u0110o g\u00f3c th\u01b0 gi\u00e3n v\u00e0 \u0111o b\u00e1n k\u00ednh b\u00ean trong b\u1eb1ng c\u00e1c \u0111\u1ed3ng h\u1ed3 \u0111o ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

    Gi\u1edd b\u1ea1n c\u00f3 ba con s\u1ed1 th\u1ef1c t\u1ebf: chi\u1ec1u r\u1ed9ng khu\u00f4n, g\u00f3c th\u01b0 gi\u00e3n, b\u00e1n k\u00ednh th\u01b0 gi\u00e3n.<\/p>\n\n\n\n

    \u0110\u01b0a c\u00e1c th\u00f4ng s\u1ed1 \u0111\u00f3 v\u00e0o t\u00ednh to\u00e1n \u0111\u1ed9 cho ph\u00e9p u\u1ed1n c\u1ee7a b\u1ea1n. \u0110i\u1ec1u ch\u1ec9nh h\u1ec7 s\u1ed1 K cho \u0111\u1ebfn khi chi\u1ec1u d\u00e0i m\u00e9p \u0111\u01b0\u1ee3c t\u00ednh kh\u1edbp v\u1edbi m\u1eabu th\u1eed \u0111\u00e3 \u0111o. H\u1ec7 s\u1ed1 K \u0111\u00e3 hi\u1ec7u chu\u1ea9n \u0111\u00f3 s\u1ebd c\u00f3 gi\u00e1 tr\u1ecb cho m\u1ebb v\u1eadt li\u1ec7u, khu\u00f4n, \u0111\u1ed9 d\u00e0y v\u00e0 c\u00e1ch thi\u1ebft l\u1eadp \u0111\u00f3.<\/p>\n\n\n\n

    \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 \u0111o\u00e1n m\u00f2. \u0110\u00e2y l\u00e0 qu\u00e1 tr\u00ecnh l\u1eb7p c\u00f3 ki\u1ec3m so\u00e1t. Hy sinh m\u1ed9t d\u1ea3i \u0111\u1ec3 c\u1ee9u s\u1ed1ng h\u00e0ng tr\u0103m chi ti\u1ebft.<\/p>\n\n\n\n

    V\u00e0 \u0111\u00fang v\u1eady, c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m m\u00e1y m\u00f3c r\u1ea5t quan tr\u1ecdng. M\u00f2n vai khu\u00f4n, \u0111\u1ed9 l\u1ec7ch p\u00edt-t\u00f4ng, c\u00e0i \u0111\u1eb7t \u0111\u1ed9 cong\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch chi ti\u1ebft th\u1ef1c s\u1ef1 bi\u1ebfn d\u1ea1ng. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fd do t\u1ea1i sao u\u1ed1n th\u1eed ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean c\u00f9ng m\u00e1y, c\u00f9ng b\u1ed9 khu\u00f4n, c\u00f9ng thi\u1ebft l\u1eadp. B\u1ea1n \u0111ang hi\u1ec7u chu\u1ea9n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, kh\u00f4ng ch\u1ec9 l\u00e0 c\u00f4ng th\u1ee9c.<\/p>\n\n\n\n

    V\u00ec s\u1ef1 th\u1eadt l\u00e0: ngay c\u1ea3 chu\u1ed7i d\u1ef1 \u0111o\u00e1n t\u1ed1t c\u0169ng c\u00f3 th\u1ec3 b\u1ecb ph\u00e1 h\u1ee7y b\u1edfi c\u00e1c bi\u1ebfn b\u1ea1n ch\u01b0a m\u00f4 ph\u1ecfng.<\/p>\n\n\n\n

    V\u00ec v\u1eady, khi b\u1ea1n \u0111\u00e3 c\u1ed1 \u0111\u1ecbnh t\u1ef7 l\u1ec7 khu\u00f4n, b\u00e1n k\u00ednh chu\u1ea9n, ph\u1ea7n b\u00f9 h\u1ed3i \u0111\u00e0n h\u1ed3i v\u00e0 h\u1ec7 s\u1ed1 K \u0111\u00e3 x\u00e1c th\u1ef1c, th\u00ec nh\u1eefng y\u1ebfu t\u1ed1 \u1ea9n n\u00e0o v\u1eabn \u0111ang ch\u1edd \u0111\u1ec3 l\u00e0m sai l\u1ec7ch m\u1eabu ph\u1eb3ng \u201cho\u00e0n h\u1ea3o\u201d c\u1ee7a b\u1ea1n \u0111\u1ebfn ba m\u01b0\u01a1i ph\u1ea7n ngh\u00ecn\u2014v\u00e0 b\u1ea1n s\u1eb5n l\u00f2ng l\u00e3ng ph\u00ed bao nhi\u00eau v\u1eadt li\u1ec7u \u0111\u1ec3 t\u00ecm ra \u0111i\u1ec1u \u0111\u00f3?<\/p>\n\n\n\n

    Khi CN-HAWE \u0111\u1ea7u t\u01b0 h\u01a1n 8% doanh thu h\u00e0ng n\u0103m v\u00e0o nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n. ADH v\u1eadn h\u00e0nh n\u0103ng l\u1ef1c R&D tr\u00ean c\u00e1c m\u00e1y ch\u1ea5n t\u00f4n, n\u1ebfu b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 trao \u0111\u1ed5i tr\u1ef1c ti\u1ebfp v\u1edbi nh\u00f3m, Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> l\u00e0 \u0111i\u1ec1u ph\u00f9 h\u1ee3p nh\u1ea5t \u1edf \u0111\u00e2y.<\/p>\n\n\n\n

    Nh\u1eefng bi\u1ebfn s\u1ed1 v\u00f4 h\u00ecnh ph\u00e1 h\u1ee7y c\u00e1c ph\u00e9p to\u00e1n ho\u00e0n h\u1ea3o<\/h2>\n\n\n\n

    B\u1ea1n \u0111\u00e3 ch\u1ecdn khu\u00f4n. B\u1ea1n \u0111\u00e3 \u0111o h\u1ed3i \u0111\u00e0n h\u1ed3i. B\u1ea1n \u0111\u00e3 tinh ch\u1ec9nh h\u1ec7 s\u1ed1 K cho \u0111\u1ebfn khi d\u1ea3i th\u1eed ph\u00f9 h\u1ee3p v\u1edbi b\u1ea3n v\u1ebd.<\/p>\n\n\n\n

    V\u00e0 l\u00f4 s\u1ea3n xu\u1ea5t v\u1eabn b\u1ecb l\u1ec7ch.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 l\u00fac \u201cc\u1ed7 m\u00e1y s\u1ef1 th\u1eadt 200 t\u1ea5n\u201d th\u1ec3 hi\u1ec7n gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3. B\u1ea1n c\u00f3 th\u1ec3 cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o ch\u00ednh x\u00e1c, b\u00e1n k\u00ednh \u0111\u00e3 hi\u1ec7u chu\u1ea9n, g\u00f3c v\u01b0\u1ee3t t\u1ea3i \u0111\u00e3 \u0111o \u2014 nh\u01b0ng n\u00f3 v\u1eabn s\u1ebd ph\u01a1i b\u00e0y nh\u1eefng gi\u1ea3 \u0111\u1ecbnh y\u1ebfu \u1ea9n trong kim lo\u1ea1i ho\u1eb7c trong ph\u1ea7n c\u1ee9ng li\u00ean k\u1ebft. C\u00f4ng th\u1ee9c kh\u00f4ng th\u1ea5t b\u1ea1i m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng. C\u00e1c chi ti\u1ebft ch\u1ec9 \u0111\u01a1n gi\u1ea3n \u201cm\u1ecdc ch\u00e2n\u201d v\u00e0 v\u01b0\u1ee3t sai s\u1ed1.<\/p>\n\n\n\n

    Khi t\u1eadp kh\u00e1ch h\u00e0ng c\u1ee7a CN-HAWE bao ph\u1ee7 c\u00e1c ng\u00e0nh nh\u01b0 m\u00e1y m\u00f3c x\u00e2y d\u1ef1ng, s\u1ea3n xu\u1ea5t \u00f4 t\u00f4, \u0111\u00f3ng t\u00e0u, c\u1ea7u, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00f3m \u0111ang \u0111\u00e1nh gi\u00e1 c\u00e1c l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf \u1edf \u0111\u00e2y, M\u00e1y c\u1eaft laser<\/a> l\u00e0 b\u01b0\u1edbc ti\u1ebfp theo ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

    To\u00e1n h\u1ecdc ho\u00e0n h\u1ea3o ch\u1ec9 t\u1ed3n t\u1ea1i trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n

    V\u1ea5n \u0111\u1ec1 l\u00e0, kh\u00f4ng c\u00f3 g\u00ec trong m\u1ed9t x\u01b0\u1edfng gia c\u00f4ng kim lo\u1ea1i gi\u1eef \u0111\u01b0\u1ee3c s\u1ef1 ho\u00e0n h\u1ea3o l\u00e2u d\u00e0i.<\/p>\n\n\n\n

    V\u1eady c\u00f2n l\u1ea1i \u0111i\u1ec1u g\u00ec c\u00f3 th\u1ec3 thay \u0111\u1ed5i b\u00e1n k\u00ednh u\u1ed1n c\u1ee7a b\u1ea1n sau khi b\u1ea1n \u0111\u00e3 \u201cl\u00e0m m\u1ecdi th\u1ee9 \u0111\u00fang c\u00e1ch\u201d?<\/p>\n\n\n\n

    H\u01b0\u1edbng th\u1edb: C\u00e1ch h\u01b0\u1edbng c\u00e1n th\u00e9p thay \u0111\u1ed5i g\u00f3c u\u1ed1n v\u01b0\u1ee3t c\u1ea7n thi\u1ebft<\/h3>\n\n\n\n

    Th\u00e9p kh\u00f4ng ph\u1ea3i v\u1eadt li\u1ec7u \u0111\u1eb3ng h\u01b0\u1edbng. \u0110\u00f3 l\u00e0 c\u00e1ch n\u00f3i trong s\u00e1ch gi\u00e1o khoa cho m\u1ed9t th\u1ef1c t\u1ebf \u0111\u01a1n gi\u1ea3n t\u1ea1i x\u01b0\u1edfng: n\u00f3 d\u1ec5 u\u1ed1n theo m\u1ed9t chi\u1ec1u h\u01a1n chi\u1ec1u kia.<\/p>\n\n\n\n

    Khi t\u1ea5m th\u00e9p \u0111\u01b0\u1ee3c c\u00e1n t\u1ea1i nh\u00e0 m\u00e1y, c\u00e1c th\u1edb h\u1ea1t k\u00e9o d\u00e0i theo h\u01b0\u1edbng c\u00e1n. U\u1ed1n vu\u00f4ng g\u00f3c v\u1edbi h\u01b0\u1edbng th\u1edb khi\u1ebfn v\u1eadt li\u1ec7u gi\u00e3n ra tr\u00ean c\u00e1c s\u1ee3i h\u1ea1t k\u00e9o d\u00e0i \u0111\u00f3. U\u1ed1n song song v\u1edbi th\u1edb l\u00e0 b\u1ea1n \u0111ang c\u1ed1 m\u1edf ch\u00fang ra nh\u01b0 k\u00e9o kho\u00e1. C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng khu\u00f4n u\u1ed1n. Nh\u01b0ng \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ph\u1ee5c kh\u00e1c nhau.<\/p>\n\n\n\n

    T\u00f4i \u0111\u00e3 th\u1ea5y th\u00e9p kh\u00f4ng g\u1ec9 d\u00e0y 0.125\u2033 u\u1ed1n \u0111\u00fang 90\u00b0 theo h\u01b0\u1edbng ngang th\u1edb \u2014 r\u1ed3i b\u1eadt tr\u1edf l\u1ea1i g\u1ea7n m\u1ed9t \u0111\u1ed9 khi u\u1ed1n theo chi\u1ec1u th\u1edb trong c\u00f9ng khu\u00f4n V 1.000\u2033. Kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c thay \u0111\u1ed5i. C\u00f9ng ch\u01b0\u01a1ng tr\u00ecnh. C\u00f9ng ng\u01b0\u1eddi v\u1eadn h\u00e0nh. C\u00f9ng h\u1ec7 s\u1ed1 K \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n t\u1eeb m\u1eabu th\u1eed.<\/p>\n\n\n\n

    Ch\u1ec9 kh\u00e1c \u1edf h\u01b0\u1edbng \u0111\u1eb7t v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

    Ki\u1ec3m tra th\u1ef1c t\u1ebf t\u1ea1i th\u00f9ng ph\u1ebf li\u1ec7u: N\u1ebfu d\u1ea3i th\u1eed c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c c\u1eaft ngang th\u1edb nh\u01b0ng ph\u00f4i s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp sao cho th\u1edb ch\u1ea1y d\u1ecdc \u0111\u1ec3 \u201cti\u1ebft ki\u1ec7m v\u1eadt li\u1ec7u\u201d, th\u00ec b\u00f9 g\u00f3c u\u1ed1n c\u1ee7a b\u1ea1n sai ngay tr\u01b0\u1edbc c\u00fa u\u1ed1n \u0111\u1ea7u ti\u00ean. M\u00e1y \u00e9p kh\u00f4ng quan t\u00e2m h\u01b0\u1edbng n\u00e0o r\u1ebb h\u01a1n \u0111\u1ec3 s\u1eafp ph\u00f4i.<\/p>\n\n\n\n

    C\u00e1c m\u00e1y hi\u1ec7n \u0111\u1ea1i c\u00f3 \u0111\u1ea7u d\u00f2 g\u00f3c c\u00f3 th\u1ec3 t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh theo th\u1eddi gian th\u1ef1c. T\u1ed1t. \u0110i\u1ec1u \u0111\u00f3 ch\u1ee9ng minh nh\u1eadn \u0111\u1ecbnh. N\u1ebfu h\u01b0\u1edbng th\u1edb kh\u00f4ng quan tr\u1ecdng, ch\u00fang \u0111\u00e3 kh\u00f4ng c\u1ea7n \u0111o \u1edf m\u1ed7i l\u1ea7n u\u1ed1n. Nh\u01b0ng n\u1ebfu b\u1ea1n b\u01b0\u1edbc v\u00e0o h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng gia c\u00f4ng hi\u1ec7n \u0111\u1ea1i, b\u1ea1n s\u1ebd th\u1ea5y \u2014 r\u1ea5t nhi\u1ec1u m\u00e1y v\u1eabn \u0111ang ch\u1ea1y m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ch\u1ec9nh g\u00f3c tr\u1ef1c ti\u1ebfp, ch\u1ec9 tin v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a ng\u00e0y h\u00f4m qua.<\/p>\n\n\n\n

    N\u1ebfu ch\u00ednh kim lo\u1ea1i thay \u0111\u1ed5i \u0111\u1ed9 c\u1ee9ng t\u00f9y theo h\u01b0\u1edbng, l\u00e0m sao c\u00f4ng th\u1ee9c b\u00e1n k\u00ednh c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 gi\u1ea3 v\u1edd r\u1eb1ng t\u1ea5m kim lo\u1ea1i kh\u00f4ng mang k\u00fd \u1ee9c v\u1ec1 c\u00e1ch n\u00f3 \u0111\u01b0\u1ee3c sinh ra?<\/p>\n\n\n\n

    C\u00e1i b\u1eaby t\u1ea3i tr\u1ecdng: T\u1ea1i sao t\u0103ng \u00e1p l\u1ef1c m\u00e1y \u0111\u1ec3 s\u1eeda m\u1ed9t t\u00ednh to\u00e1n sai l\u1ea1i t\u1ea1o ra v\u1ea5n \u0111\u1ec1 t\u1ed3i t\u1ec7 h\u01a1n<\/h3>\n\n\n\n

    \u0110\u00e2y l\u00e0 \u0111\u1ed9ng t\u00e1c t\u00f4i th\u01b0\u1eddng th\u1ea5y khi g\u00f3c m\u1edf ra nhi\u1ec1u h\u01a1n d\u1ef1 ki\u1ebfn: t\u0103ng t\u1ea3i tr\u1ecdng.<\/p>\n\n\n\n

    Nhi\u1ec1u \u00e1p l\u1ef1c mang l\u1ea1i c\u1ea3m gi\u00e1c ki\u1ec3m so\u00e1t. Nh\u01b0ng th\u1eadt ra kh\u00f4ng ph\u1ea3i v\u1eady.<\/p>\n\n\n\n

    Trong u\u1ed1n kh\u00f4ng kh\u00ed, t\u1ea3i tr\u1ecdng kh\u00f4ng tr\u1ef1c ti\u1ebfp quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh \u2014 chi\u1ec1u r\u1ed9ng khu\u00f4n u\u1ed1n m\u1edbi l\u00e0 y\u1ebfu t\u1ed1. M\u0169i ch\u00e0y \u0111\u1ea9y t\u1ea5m xu\u1ed1ng gi\u1eefa hai vai khu\u00f4n, nh\u01b0ng kh\u00f4ng bao gi\u1edd \u00e9p v\u1eadt li\u1ec7u ho\u00e0n to\u00e0n v\u00e0o \u0111\u00e1y h\u00ecnh ch\u1eef V. B\u1ea1n \u0111ang t\u1ea1o h\u00ecnh b\u1eb1ng h\u00ecnh h\u1ecdc, kh\u00f4ng ph\u1ea3i b\u1eb1ng s\u1ee9c m\u1ea1nh th\u00f4. T\u0103ng \u00e1p l\u1ef1c v\u01b0\u1ee3t m\u1ee9c c\u1ea7n thi\u1ebft kh\u00f4ng khi\u1ebfn b\u1ea1n \u201ckh\u00f3a ch\u1eb7t\u201d g\u00f3c u\u1ed1n m\u1ed9t c\u00e1ch k\u1ef3 di\u1ec7u. B\u1ea1n b\u1eaft \u0111\u1ea7u ch\u1ea1m \u0111\u1ebfn tr\u1ea1ng th\u00e1i g\u1ea7n \u00e9p s\u00e1t, d\u1eadp, v\u00e0 t\u1ea1o ra s\u1ef1 bi\u1ebfn d\u1ea1ng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u d\u1ecdc theo \u0111\u01b0\u1eddng u\u1ed1n.<\/p>\n\n\n\n

    Gi\u1edd th\u00ec c\u00f4ng th\u1ee9c u\u1ed1n kh\u00f4ng kh\u00ed \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh c\u1ee7a b\u1ea1n l\u1ea1i b\u1ecb pha tr\u1ed9n v\u1edbi h\u00e0nh vi g\u1ea7n u\u1ed1n s\u00e1t khu\u00f4n.<\/p>\n\n\n\n

    Ki\u1ec3m tra th\u1ef1c t\u1ebf t\u1ea1i th\u00f9ng ph\u1ebf li\u1ec7u: T\u00f4i \u0111\u00e3 th\u1ea5y ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u1ed1 g\u1eafng kh\u1eafc ph\u1ee5c \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ph\u1ee5c n\u1eeda \u0111\u1ed9 b\u1eb1ng c\u00e1ch th\u00eam t\u1ea3i tr\u1ecdng, nh\u01b0ng k\u1ebft qu\u1ea3 l\u00e0 g\u00f3c \u1edf hai \u0111\u1ea7u ch\u1eb7t h\u01a1n v\u00e0 \u1edf gi\u1eefa l\u1ecfng h\u01a1n do \u0111\u1ed9 cong nh\u1ecf v\u00e0 ti\u1ebfp x\u00fac kh\u00f4ng \u0111\u1ec1u. C\u00e1c chi ti\u1ebft tr\u00f4ng \u1ed5n khi r\u1eddi kh\u1ecfi m\u00e1y u\u1ed1n. Nh\u01b0ng khi l\u1eafp r\u00e1p th\u00ec kh\u00f4ng kh\u1edbp.<\/p>\n\n\n\n

    Nhi\u1ec1u l\u1ef1c h\u01a1n l\u00e0m khu\u1ebfch \u0111\u1ea1i nh\u1eefng sai l\u1ec7ch nh\u1ecf trong thi\u1ebft l\u1eadp. \u0110\u1ed9 cong nh\u1eb9 c\u1ee7a khu\u00f4n. Bi\u1ebfn thi\u00ean nh\u1eb9 v\u1ec1 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. \u0110\u1ed9 v\u00f5ng nh\u1eb9 c\u1ee7a b\u00e0n tr\u01b0\u1ee3t. Th\u1ee9 t\u1eebng l\u00e0 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ph\u1ee5c d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c 1.5\u00b0 gi\u1edd tr\u1edf th\u00e0nh 1.2\u00b0 \u1edf \u0111\u00e2y v\u00e0 1.8\u00b0 \u1edf ch\u1ed7 kia. B\u1ea1n kh\u00f4ng s\u1eeda c\u00f4ng th\u1ee9c \u2014 b\u1ea1n l\u00e0m m\u1edd m\u1eabu bi\u1ebfn d\u1ea1ng.<\/p>\n\n\n\n

    N\u1ebfu ph\u01b0\u01a1ng ph\u00e1p b\u00f9 tr\u1eeb c\u1ee7a b\u1ea1n ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t kho\u1ea3ng \u00e1p l\u1ef1c duy nh\u1ea5t, li\u1ec7u \u0111\u00f3 c\u00f3 th\u1ef1c s\u1ef1 l\u00e0 b\u00f9 tr\u1eeb \u2014 hay ch\u1ec9 l\u00e0 may m\u1eafn trong m\u1ed9t v\u00f9ng h\u1eb9p?<\/p>\n\n\n\n

    M\u00f2n d\u1ee5ng c\u1ee5 v\u00e0 sai l\u1ec7ch c\u0103n ch\u1ec9nh: \u0110i\u1ec1u g\u00ec x\u1ea3y ra khi khu\u00f4n th\u1ef1c t\u1ebf kh\u00f4ng c\u00f2n kh\u1edbp v\u1edbi d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o c\u1ee7a m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n

    M\u00e1y t\u00ednh c\u1ee7a b\u1ea1n cho r\u1eb1ng b\u1ea1n \u0111ang u\u1ed1n trong khu\u00f4n ch\u1eef V 1.000\u2033 v\u1edbi c\u00e1c vai s\u1eafc n\u00e9t, \u0111\u1ed3ng nh\u1ea5t.<\/p>\n\n\n\n

    H\u00e3y \u0111i \u0111o l\u1ea1i khu\u00f4n \u0111\u00f3 sau hai n\u0103m s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

    Vai khu\u00f4n b\u1ecb m\u00f2n. Ch\u00fang h\u01a1i b\u1eb9t ra, \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng l\u00e1ng, m\u1edf r\u1ed9ng th\u00eam v\u00e0i ph\u1ea7n ngh\u00ecn inch. M\u1ed9t khu\u00f4n \u201c1.000 inch\u201d gi\u1edd c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 1.020\u2033 t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac ph\u00eda tr\u00ean. \u0110i\u1ec1u \u0111\u00f3 m\u1edf r\u1ed9ng t\u1ef7 l\u1ec7 V\/T hi\u1ec7u d\u1ee5ng. T\u1ef7 l\u1ec7 r\u1ed9ng h\u01a1n ngh\u0129a l\u00e0 b\u00e1n k\u00ednh khi ch\u1ecbu t\u1ea3i l\u1edbn h\u01a1n. B\u00e1n k\u00ednh l\u1edbn h\u01a1n ngh\u0129a l\u00e0 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i sau u\u1ed1n (springback) t\u0103ng l\u00ean.<\/p>\n\n\n\n

    C\u00e1c ph\u00e9p t\u00ednh c\u1ee7a b\u1ea1n v\u1eabn \u0111ang d\u00f9ng h\u00ecnh h\u1ecdc c\u1ee7a ng\u00e0y h\u00f4m qua.<\/p>\n\n\n\n

    Sau \u0111\u00f3 c\u1ed9ng d\u1ed3n dung sai: m\u1ed9t ch\u00fat l\u1ec7ch tr\u00e1i\u2011ph\u1ea3i trong d\u1ee5ng c\u1ee5 chia \u0111o\u1ea1n, m\u1ed9t mi\u1ebfng shim d\u01b0\u1edbi m\u1ed9t \u0111o\u1ea1n khu\u00f4n, ho\u1eb7c m\u1ed9t k\u1eb9p ch\u01b0a \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t ho\u00e0n to\u00e0n. Gi\u1edd \u0111\u00e2y, \u0111\u01b0\u1eddng u\u1ed1n kh\u00f4ng c\u00f2n ch\u1ecbu c\u00f9ng \u0111i\u1ec1u ki\u1ec7n tr\u00ean to\u00e0n chi\u1ec1u d\u00e0i n\u1eefa. H\u1ec7 s\u1ed1 K duy nh\u1ea5t c\u1ee7a b\u1ea1n \u0111ang c\u1ed1 m\u00f4 t\u1ea3 m\u1ed9t m\u1ee5c ti\u00eau \u0111ang di chuy\u1ec3n.<\/p>\n\n\n\n

    Th\u1ef1c t\u1ebf trong th\u00f9ng ph\u1ebf li\u1ec7u: Khi chi\u1ec1u d\u00e0i c\u00e1nh (flange) b\u1eaft \u0111\u1ea7u sai l\u1ec7ch h\u00e0ng hai m\u01b0\u01a1i hay ba m\u01b0\u01a1i ph\u1ea7n ngh\u00ecn tr\u00ean m\u1ed9t chi ti\u1ebft d\u00e0i, c\u00e1c x\u01b0\u1edfng th\u01b0\u1eddng \u0111\u1ed5 l\u1ed7i cho l\u1eadp tr\u00ecnh vi\u00ean. M\u1ed9t n\u1eeda s\u1ed1 l\u1ea7n, ch\u1ec9 c\u1ea7n thay \u0111o\u1ea1n khu\u00f4n m\u1edbi l\u00e0 h\u1ebft. B\u1ea3ng t\u00ednh ch\u01b0a bao gi\u1edd c\u00f3 c\u01a1 h\u1ed9i s\u1eeda \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

    \u0110\u00fang, c\u00e1c m\u00e1y phanh \u00e9p ki\u1ec3u n\u00e2ng m\u1edbi h\u01a1n v\u00e0 h\u1ec7 th\u1ed1ng ch\u1ed1ng v\u00f5ng th\u00f4ng minh h\u01a1n \u0111\u00e3 gi\u1ea3m c\u00e1c v\u1ea5n \u0111\u1ec1 bi\u1ebfn d\u1ea1ng truy\u1ec1n th\u1ed1ng. M\u00e1y t\u1ed1t gi\u00fap thu h\u1eb9p kho\u1ea3ng sai s\u1ed1. Nh\u01b0ng ch\u00fang kh\u00f4ng lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c v\u1eadt l\u00fd. D\u1ee5ng c\u1ee5 v\u1eabn m\u00f2n. B\u1ec1 m\u1eb7t v\u1eabn bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u1ea3i. Th\u00e9p v\u1eabn c\u00f3 th\u1edb.<\/p>\n\n\n\n

    M\u00e1y phanh \u00e9p l\u00e0 b\u00e0i ki\u1ec3m tra c\u0103ng th\u1eb3ng cho nh\u1eefng gi\u1ea3 \u0111\u1ecbnh c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

    B\u1ea1n c\u00f3 th\u1ec3 theo \u0111u\u1ed5i c\u00f4ng th\u1ee9c b\u00e1n k\u00ednh \u201cph\u1ed5 qu\u00e1t\u201d su\u1ed1t s\u1ef1 nghi\u1ec7p, ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111i\u1ec1u m\u00e0 m\u00e1y lu\u00f4n n\u00f3i v\u1edbi b\u1ea1n: b\u00e1n k\u00ednh kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t con s\u1ed1 \u0111\u1ec3 t\u00ednh m\u1ed9t l\u1ea7n \u2014 n\u00f3 l\u00e0 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, theo d\u00f5i v\u00e0 hi\u1ec7u ch\u1ec9nh.<\/p>\n\n\n\n

    V\u1eady n\u1ebfu th\u1edb v\u1eadt li\u1ec7u l\u00e0m thay \u0111\u1ed5i \u0111\u1ed9 c\u1ee9ng, l\u1ef1c \u00e9p l\u00e0m r\u1ed1i bi\u1ebfn d\u1ea1ng, v\u00e0 h\u00ecnh h\u1ecdc c\u1ee7a d\u1ee5ng c\u1ee5 thay \u0111\u1ed5i theo th\u1eddi gian, t\u1ea1i sao ch\u00fang ta v\u1eabn gi\u1ea3 v\u1edd r\u1eb1ng m\u1ed9t ph\u01b0\u01a1ng tr\u00ecnh t\u0129nh c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 ta kh\u1ecfi th\u00f9ng ph\u1ebf li\u1ec7u?<\/p>\n\n\n\n

    Ng\u1eebng ch\u1ea1y theo con s\u1ed1: X\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng t\u00ednh b\u00e1n k\u00ednh th\u1ef1c s\u1ef1 hi\u1ec7u qu\u1ea3<\/h2>\n\n\n\n

    B\u1ea1n kh\u00f4ng th\u1ec3 s\u1eeda m\u1ed9t b\u00e1n k\u00ednh thay \u0111\u1ed5i b\u1eb1ng m\u1ed9t m\u00e1y t\u00ednh t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

    B\u1ea1n s\u1eeda n\u00f3 b\u1eb1ng c\u00e1ch x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng m\u00e1y phanh \u00e9p s\u1ebd \u201cn\u00f3i d\u1ed1i\u201d b\u1ea1n tr\u1eeb khi b\u1ea1n x\u00e1c minh n\u00f3.<\/p>\n\n\n\n

    T\u00f4i \u0111\u00e3 t\u1eebng \u0111\u1ee9ng b\u00ean m\u1ed9t gi\u00e1 \u0111\u1ee1 th\u00e9p 10 gauge, sau 1.000 chi ti\u1ebft trong m\u1ed9t \u0111\u01a1n h\u00e0ng, ch\u1ee9ng ki\u1ebfn g\u00f3c u\u1ed1n tr\u00f4i n\u1eeda \u0111\u1ed9 khi \u0111\u1ed9 c\u1ee9ng cu\u1ed9n thay \u0111\u1ed5i t\u1eeb \u0111\u1ea7u pallet \u0111\u1ebfn cu\u1ed1i. C\u00f4ng th\u1ee9c kh\u00f4ng \u0111\u1ed5i. Khu\u00f4n V kh\u00f4ng \u0111\u1ed5i. Ch\u1ec9 v\u1eadt li\u1ec7u thay \u0111\u1ed5i. \u0110\u00f3 l\u00e0 l\u00fac b\u1ea1n nh\u1eadn ra: b\u1ea1n kh\u00f4ng \u0111ang gi\u1ea3i cho m\u1ed9t con s\u1ed1 \u2014 b\u1ea1n \u0111ang ki\u1ec3m so\u00e1t m\u1ed9t quy tr\u00ecnh lu\u00f4n d\u1ecbch chuy\u1ec3n.<\/p>\n\n\n\n

    M\u00e1y phanh \u00e9p l\u00e0 c\u1ed7 m\u00e1y ch\u00e2n l\u00fd 200 t\u1ea5n. N\u00f3 ph\u01a1i b\u00e0y c\u00e1c gi\u1ea3 \u0111\u1ecbnh y\u1ebfu k\u00e9m gi\u1ed1ng nh\u01b0 c\u00e1ch th\u00ed nghi\u1ec7m k\u00e9o ph\u01a1i b\u00e0y th\u00e9p y\u1ebfu. N\u1ebfu \u201cc\u00f4ng th\u1ee9c b\u00e1n k\u00ednh\u201d c\u1ee7a b\u1ea1n ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng khi m\u1ecdi th\u1ee9 \u0111\u1ec1u tr\u00f9ng kh\u1edbp \u2014 c\u00f9ng m\u1ebb th\u00e9p, c\u00f9ng h\u01b0\u1edbng th\u1edb, c\u00f9ng \u0111\u1ed9 m\u00f2n khu\u00f4n, c\u00f9ng c\u1eeda s\u1ed5 t\u1ea3i tr\u1ecdng \u2014 th\u00ec b\u1ea1n kh\u00f4ng c\u00f3 c\u00f4ng th\u1ee9c. B\u1ea1n ch\u1ec9 c\u00f3 m\u1ed9t s\u1ef1 tr\u00f9ng h\u1ee3p.<\/p>\n\n\n\n

    V\u1eady m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho th\u1ef1c t\u1ebf ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00fd thuy\u1ebft tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n

    T\u1ea1i sao m\u1ed9t c\u00f4ng th\u1ee9c chung duy nh\u1ea5t lu\u00f4n th\u1ea5t b\u1ea1i gi\u1eefa c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 \u0111\u1ed9 d\u00e0y kh\u00e1c nhau<\/h3>\n\n\n\n

    B\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c b\u01b0\u1edbc nh\u1ea3y \u0111\u1ed9 d\u00e0y.<\/p>\n\n\n\n

    \u0110\u1ed1i v\u1edbi th\u00e9p t\u1ea5m trung b\u00ecnh \u2014 v\u00ed d\u1ee5 d\u00e0y 6 \u0111\u1ebfn 12 mm \u2014 b\u1ea1n th\u01b0\u1eddng th\u1ea5y b\u00e1n k\u00ednh trong \u0111\u1ea1t kho\u1ea3ng 1,5\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u khi u\u1ed1n t\u1ef1 do v\u1edbi t\u1ef7 l\u1ec7 khu\u00f4n th\u00f4ng th\u01b0\u1eddng. V\u01b0\u1ee3t qu\u00e1 12 mm v\u00e0 b\u00e1n k\u00ednh \u0111\u00f3 c\u00f3 th\u1ec3 t\u0103ng l\u00ean \u0111\u1ebfn kho\u1ea3ng 3\u00d7 \u0111\u1ed9 d\u00e0y, ngay c\u1ea3 khi b\u1ea1n \u0111\u00e3 t\u1ef7 l\u1ec7 h\u00f3a \u0111\u1ed9 m\u1edf khu\u00f4n \u201c\u0111\u00fang c\u00e1ch.\u201d \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i l\u00e0m tr\u00f2n. \u0110\u00f3 l\u00e0 h\u00e0nh vi phi tuy\u1ebfn t\u00ednh.<\/p>\n\n\n\n

    Nh\u1eefng ng\u01b0\u1eddi theo c\u00f4ng th\u1ee9c (V \u2212 MT)\/2 cho r\u1eb1ng v\u1eadt li\u1ec7u t\u1ec9 l\u1ec7 m\u01b0\u1ee3t m\u00e0. Th\u00e9p th\u1eadt th\u00ec kh\u00f4ng.<\/p>\n\n\n\n

    Khi \u0111\u1ed9 d\u00e0y t\u0103ng l\u00ean, b\u1ea1n kh\u00f4ng ch\u1ec9 u\u1ed1n nhi\u1ec1u v\u1eadt li\u1ec7u h\u01a1n \u2014 b\u1ea1n \u0111ang thay \u0111\u1ed5i ph\u00e2n b\u1ed1 bi\u1ebfn d\u1ea1ng qua ti\u1ebft di\u1ec7n. Tr\u1ee5c trung h\u00f2a d\u1ecbch chuy\u1ec3n. L\u01b0\u1ee3ng l\u1ef1c c\u1ea7n thi\u1ebft t\u0103ng l\u00ean. Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c t\u0103ng v\u00ec c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i l\u01b0u gi\u1eef nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i h\u01a1n. C\u00f9ng t\u1ef7 l\u1ec7 V\/T tr\u00ean l\u00fd thuy\u1ebft, nh\u01b0ng bi\u1ec3u \u0111\u1ed3 \u1ee9ng su\u1ea5t b\u00ean trong l\u1ea1i kh\u00e1c h\u1eb3n khi ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n

    B\u00e2y gi\u1edd th\u00eam y\u1ebfu t\u1ed1 c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o v\u00e0o.<\/p>\n\n\n\n

    M\u1ed9t t\u1ea5m nh\u00f4m 5052 c\u00f3 gi\u1edbi h\u1ea1n ch\u1ea3y th\u1ea5p v\u00e0 m\u1ed9t t\u1ea5m th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao trong c\u00f9ng khu\u00f4n \u00e9p s\u1ebd kh\u00f4ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c nh\u01b0 nhau. V\u1eadt li\u1ec7u m\u1ea1nh h\u01a1n l\u01b0u tr\u1eef nhi\u1ec1u bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i h\u01a1n tr\u01b0\u1edbc khi ch\u1ea3y. N\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 b\u1eadt ng\u01b0\u1ee3c l\u1ea1i khi ch\u00e0y \u00e9p n\u00e2ng l\u00ean. N\u1ebfu ph\u00e9p t\u00ednh b\u00e1n k\u00ednh c\u1ee7a b\u1ea1n kh\u00f4ng t\u00ednh \u0111\u1ebfn gi\u1edbi h\u1ea1n ch\u1ea3y, th\u00ec n\u00f3 \u0111ang \u201cm\u00f9\u201d.<\/p>\n\n\n\n

    Ki\u1ec3m ch\u1ee9ng th\u1ef1c t\u1ebf t\u1ea1i th\u00f9ng ph\u1ebf: T\u00f4i \u0111\u00e3 th\u1ea5y hai m\u1ebb \u201cc\u00f9ng lo\u1ea1i\u201d A36 c\u00f3 h\u00e0nh vi kh\u00e1c nhau \u0111\u1ee7 \u0111\u1ec3 l\u00e0m thay \u0111\u1ed5i chi\u1ec1u d\u00e0i b\u00edch t\u1edbi ba m\u01b0\u01a1i ph\u1ea7n ngh\u00ecn sau b\u1ed1n l\u1ea7n u\u1ed1n. B\u1ea3ng t\u00ednh cho c\u00f9ng \u0111\u1ea7u v\u00e0o. C\u00e1c chi ti\u1ebft th\u1ef1c t\u1ebf l\u1ea1i n\u00f3i kh\u00e1c.<\/p>\n\n\n\n

    V\u00e0 ch\u00fang ta c\u00f2n ch\u01b0a \u0111\u1ee5ng \u0111\u1ebfn sai s\u1ed1 ph\u1ea7n c\u1ee9ng. Sai l\u1ec7ch khu\u00f4n ch\u1ec9 m\u1ed9t ph\u1ea7n m\u01b0\u1eddi milimet c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch g\u00f3c h\u01a1n n\u1eeda \u0111\u1ed9. C\u00f4ng th\u1ee9c ph\u1ed5 qu\u00e1t c\u1ee7a b\u1ea1n gi\u1ea3 \u0111\u1ecbnh h\u00ecnh h\u1ecdc ho\u00e0n h\u1ea3o. S\u00e0n x\u01b0\u1edfng c\u1ee7a b\u1ea1n th\u00ec kh\u00f4ng.<\/p>\n\n\n\n

    N\u1ebfu c\u00e1c c\u1ea5p \u0111\u1ed9 d\u00e0y kh\u00f4ng h\u00e0nh x\u1eed tuy\u1ebfn t\u00ednh, c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o l\u00e0m thay \u0111\u1ed5i \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c v\u00e0 s\u1ef1 l\u1ec7ch c\u0103n ch\u1ec9nh d\u1ee5ng c\u1ee5 tr\u00f4i m\u1ed7i ng\u00e0y, th\u00ec r\u1ed1t cu\u1ed9c c\u00f4ng th\u1ee9c \u201cg\u1ecdn g\u00e0ng\u201d \u1ea5y \u0111ang \u0111\u1ea1i di\u1ec7n cho \u0111i\u1ec1u g\u00ec?<\/p>\n\n\n\n

    T\u1ea1o bi\u1ec3u \u0111\u1ed3 b\u00e1n k\u00ednh ri\u00eang cho t\u1eebng v\u1eadt li\u1ec7u d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf<\/h3>\n\n\n\n

    B\u1ea1n ng\u1eebng ph\u1ecfng \u0111o\u00e1n v\u00e0 b\u1eaft \u0111\u1ea7u \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n

    Ch\u1ecdn c\u00e1c t\u1ef7 l\u1ec7 khu\u00f4n ti\u00eau chu\u1ea9n \u2014 nh\u1eefng lo\u1ea1i b\u1ea1n th\u1ef1c s\u1ef1 d\u00f9ng h\u1eb1ng ng\u00e0y. V\u1edbi m\u1ed7i c\u1ea5p v\u1eadt li\u1ec7u v\u00e0 ph\u1ea1m vi \u0111\u1ed9 d\u00e0y, c\u1eaft c\u00e1c d\u1ea3i th\u1eed c\u00f3 ghi h\u01b0\u1edbng th\u1edb. U\u1ed1n t\u1ef1 do \u0111\u1ebfn m\u1ed9t g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. \u0110o b\u00e1n k\u00ednh b\u00ean trong sau khi \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c b\u1eb1ng th\u01b0\u1edbc \u0111o b\u00e1n k\u00ednh ho\u1eb7c ki\u1ec3m tra quang h\u1ecdc. Ghi l\u1ea1i l\u01b0\u1ee3ng qu\u00e1 u\u1ed1n th\u1ef1c t\u1ebf c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t g\u00f3c 90\u00b0 \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 do.<\/p>\n\n\n\n

    Th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y m\u1ed9t l\u1ea7n cho m\u1ed7i nh\u00f3m v\u1eadt li\u1ec7u v\u00e0 c\u1ea5p \u0111\u1ed9 d\u00e0y. Kh\u00f4ng ph\u1ea3i m\u1ed7i c\u00f4ng vi\u1ec7c. M\u00e0 l\u00e0 m\u1ed7i \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

    B\u00e2y gi\u1edd b\u1ea1n x\u00e2y d\u1ef1ng m\u1ed9t b\u1ea3ng cho bi\u1ebft, ch\u1eb3ng h\u1ea1n (s\u1ed1 li\u1ec7u gi\u1ea3 \u0111\u1ecbnh):<\/p>\n\n\n\n