![\"kh\u00f4ng](\"https:\/\/cn-hawe.com\/wp-content\/uploads\/2026\/02\/isnt-a-20-ton-hydraulic-jack-enough-to-bend-anything_w1200.jpg\")
<\/figure>\n\n\n\nB\u00e2y gi\u1edd \u0111\u00e2y l\u00e0 ph\u1ea7n m\u00e0 kh\u00f4ng ai n\u00f3i v\u1edbi b\u1ea1n: \u0111\u00e1nh gi\u00e1 20 t\u1ea5n \u0111\u00f3 l\u00e0 \u1edf ram, th\u1eb3ng \u0111\u1ee9ng, trong s\u1ef1 c\u0103n ch\u1ec9nh ho\u00e0n h\u1ea3o. N\u00f3 kh\u00f4ng n\u00f3i g\u00ec v\u1ec1 nh\u1eefng g\u00ec x\u1ea3y ra sau khi l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o thanh tr\u00ean c\u1ee7a b\u1ea1n, \u0111i qua c\u00e1c t\u1ea5m b\u00ean c\u1ee7a b\u1ea1n, v\u00e0 gi\u1ea3i quy\u1ebft \u1edf khu\u00f4n d\u01b0\u1edbi. M\u1ed7i inch c\u1ee7a s\u1ef1 u\u1ed1n trong con \u0111\u01b0\u1eddng \u0111\u00f3 l\u1ea5y \u0111i l\u1ef1c u\u1ed1n hi\u1ec7u qu\u1ea3 v\u00e0 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i trong khung.<\/p>\n\n\n\n
V\u00ec v\u1eady, b\u1ea1n ph\u1ea3i quay m\u1ea1nh h\u01a1n.<\/p>\n\n\n\n
H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: khi b\u1ea1n ti\u1ebfp t\u1ee5c b\u01a1m v\u00ec \u201cn\u00f3 ch\u01b0a u\u1ed1n\u201d, b\u1ea1n kh\u00f4ng \u0111ang th\u1eed nghi\u1ec7m th\u00e9p \u2014 b\u1ea1n \u0111ang n\u1ea1p m\u1ed9t chi\u1ebfc l\u00f2 xo m\u00e0 b\u1ea1n \u0111\u00e3 t\u1ea1o ra t\u1eeb ph\u1ebf li\u1ec7u v\u00e0 hy v\u1ecdng.<\/p>\n\n\n\n
N\u1ebfu t\u1ea5m ch\u01b0a b\u1ecb bi\u1ebfn d\u1ea1ng nh\u01b0ng khung c\u1ee7a b\u1ea1n \u0111\u00e3, b\u1ea1n ngh\u0129 \u0111i\u1ec1u g\u00ec s\u1ebd h\u1ecfng tr\u01b0\u1edbc?<\/p>\n\n\n\n
T\u1ea1i sao khung l\u1ea1i u\u1ed1n tr\u01b0\u1edbc khi t\u1ea5m kim lo\u1ea1i b\u1eaft \u0111\u1ea7u bi\u1ebfn d\u1ea1ng<\/h3>\n\n\n\n
\u0110\u1eb7t m\u1ed9t th\u01b0\u1edbc th\u1eb3ng qua m\u1ed9t thanh tr\u00ean m\u1ecfng manh tr\u01b0\u1edbc khi b\u1ea1n \u00e9p. B\u01a1m chi\u1ebfc k\u00edch \u0111\u1ebfn n\u1eeda t\u1ea3i. B\u1ea1n s\u1ebd th\u1ea5y \u00e1nh s\u00e1ng \u1edf gi\u1eefa l\u00e2u tr\u01b0\u1edbc khi t\u1ea5m xu\u1ea5t hi\u1ec7n n\u1ebfp g\u1ea5p. \u0110\u00f3 l\u00e0 s\u1ef1 l\u1ec7ch \u2014 u\u1ed1n \u0111\u00e0n h\u1ed3i c\u1ee7a khung.<\/p>\n\n\n\n Th\u00e9p bi\u1ebfn d\u1ea1ng \u1edf m\u1ed9t \u1ee9ng su\u1ea5t c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n. Khung c\u1ee7a b\u1ea1n c\u0169ng v\u1eady. Nh\u01b0ng khung c\u1ee7a b\u1ea1n th\u01b0\u1eddng c\u00f3 m\u1ed9t kho\u1ea3ng c\u00e1ch kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 d\u00e0i h\u01a1n so v\u1edbi chi ti\u1ebft c\u00f4ng vi\u1ec7c v\u00e0 c\u00f3 ti\u1ebft di\u1ec7n k\u00e9m h\u01a1n \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 u\u1ed1n. M\u1ed9t m\u1ea3nh k\u00eanh 4 inch n\u1eb1m ph\u1eb3ng r\u1ea5t t\u1ec7 trong u\u1ed1n \u0111\u1ee9ng so v\u1edbi m\u1ed9t d\u1ea7m I \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u00fang. H\u01b0\u1edbng quan tr\u1ecdng v\u00ec \u0111\u1ed9 c\u1ee9ng u\u1ed1n t\u1ef7 l\u1ec7 v\u1edbi m\u00f4 men th\u1ee9 hai c\u1ee7a di\u1ec7n t\u00edch \u2014 kh\u1ea3 n\u0103ng ch\u1ed1ng u\u1ed1n c\u1ee7a h\u00ecnh d\u1ea1ng. C\u00e1c ph\u1ea7n cao ch\u1ed1ng l\u1ea1i s\u1ef1 u\u1ed1n. C\u00e1c ph\u1ea7n ng\u1eafn, r\u1ed9ng th\u00ec g\u1eadp l\u1ea1i.<\/p>\n\n\n\n Khi khung u\u1ed1n, hai \u0111i\u1ec1u x\u1ea3y ra. \u0110\u1ea7u ti\u00ean, m\u0169i khoan v\u00e0 khu\u00f4n c\u1ee7a b\u1ea1n kh\u00f4ng c\u00f2n song song, t\u1eadp trung t\u1ea3i \u1edf gi\u1eefa. Th\u1ee9 hai, b\u1ea1n \u0111ang l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng trong khung b\u1ecb u\u1ed1n. N\u1ebfu m\u1ed9t m\u1ed1i h\u00e0n b\u1ecb tu\u1ed9t ho\u1eb7c m\u1ed9t m\u00e9p b\u1ecb cong, n\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef \u0111\u00f3 s\u1ebd gi\u1ea3i ph\u00f3ng ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 c\u00e1ch b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c m\u1ea3nh v\u1ee5n trong gara thay v\u00ec m\u1ed9t \u0111\u1ed9 u\u1ed1n 90 \u0111\u1ed9 s\u1ea1ch s\u1ebd.<\/p>\n\n\n\n Ki\u1ec3m tra Ng\u1ed1c: n\u1ebfu thanh tr\u00ean c\u1ee7a b\u1ea1n b\u1ecb l\u1ec7ch r\u00f5 r\u00e0ng tr\u01b0\u1edbc khi chi ti\u1ebft c\u00f4ng vi\u1ec7c xu\u1ea5t hi\u1ec7n d\u1ea5u, b\u1ea1n \u0111ang u\u1ed1n th\u00e9p \u2014 hay m\u00e1y c\u1ee7a b\u1ea1n?<\/p>\n\n\n\n T\u00f4i y\u00eau th\u00e9p ph\u1ebf li\u1ec7u. T\u00f4i \u0111\u00e3 x\u00e2y d\u1ef1ng m\u1ed9t n\u1eeda c\u1eeda h\u00e0ng n\u00e0y t\u1eeb n\u00f3. Nh\u01b0ng t\u00f4i bi\u1ebft n\u00f3 l\u00e0 g\u00ec.<\/p>\n\n\n\n B\u1ea1n k\u00e9o v\u1ec1 nh\u00e0 m\u1ed9t c\u00e1i khung gi\u01b0\u1eddng c\u0169, m\u1ed9t m\u1ea3nh k\u00eanh b\u00ed \u1ea9n, c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t c\u1ed9t n\u00e2ng h\u00e0ng. B\u1ea1n kh\u00f4ng bi\u1ebft lo\u1ea1i th\u00e9p, l\u1ecbch s\u1eed, hay m\u1ee9c \u0111\u1ed9 m\u1ecfi m\u00e0 n\u00f3 \u0111\u00e3 tr\u1ea3i qua. Khung gi\u01b0\u1eddng th\u01b0\u1eddng l\u00e0 nh\u1eefng th\u1ee9 c\u00f3 carbon cao, gi\u00f2n \u2014 tuy\u1ec7t v\u1eddi cho \u0111\u1ed9 c\u1ee9ng, t\u1ec7 cho vi\u1ec7c h\u00e0n. H\u00e0n sai c\u00e1ch v\u00e0 v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t s\u1ebd tr\u1edf th\u00e0nh n\u01a1i kh\u1edfi \u0111\u1ea7u cho v\u1ebft n\u1ee9t.<\/p>\n\n\n\n R\u1ed3i c\u00f2n c\u00f3 h\u00ecnh h\u1ecdc. M\u1ea3nh k\u00eanh 3 inch r\u1ec9 s\u00e9t \u0111\u00f3 tr\u00f4ng c\u00f3 v\u1ebb ch\u1eafc ch\u1eafn cho \u0111\u1ebfn khi b\u1ea1n t\u00ednh to\u00e1n v\u00e0 nh\u1eadn ra m\u00f4 \u0111un m\u1eb7t c\u1eaft c\u1ee7a n\u00f3 ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n nh\u1ecf so v\u1edbi nh\u1eefng g\u00ec m\u1ed9t thanh th\u00e9p \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ebd cung c\u1ea5p tr\u00ean c\u00f9ng m\u1ed9t kho\u1ea3ng c\u00e1ch. V\u00ec v\u1eady, b\u1ea1n b\u00f9 \u0111\u1eafp b\u1eb1ng c\u00e1c t\u1ea5m b\u00ean d\u00e0y h\u01a1n. Nhi\u1ec1u h\u00e0n h\u01a1n. Nhi\u1ec1u hy v\u1ecdng h\u01a1n.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: h\u00e0n th\u00e9p kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c v\u00e0o m\u1ed9t khung ch\u1ecbu t\u1ea3i n\u1eb7ng m\u00e0 kh\u00f4ng hi\u1ec3u c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a n\u00f3 l\u00e0 c\u00e1ch b\u1ea1n t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb ph\u00e2n m\u1ea3nh, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5.<\/p>\n\n\n\n Khung m\u00e1y \u00e9p kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t t\u00e1c ph\u1ea9m \u0111i\u00eau kh\u1eafc; n\u00f3 l\u00e0 m\u1ed9t con \u0111\u01b0\u1eddng t\u1ea3i tr\u1ecdng. M\u1ed7i m\u1ea3nh ph\u1ea3i mang t\u1ea3i tr\u1ecdng n\u00e9n v\u00e0 u\u1ed1n m\u1ed9t c\u00e1ch d\u1ef1 \u0111o\u00e1n t\u1eeb p\u00edt-t\u00f4ng \u0111\u1ebfn khu\u00f4n. Ph\u1ebf li\u1ec7u c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u2014 n\u1ebfu b\u1ea1n thi\u1ebft k\u1ebf d\u1ef1a tr\u00ean c\u00e1c l\u1ef1c th\u1ef1c t\u1ebf thay v\u00ec nh\u1eefng \u0111i\u1ec1u t\u01b0\u1edfng t\u01b0\u1ee3ng in tr\u00ean m\u1ed9t chi\u1ebfc k\u00edch.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: b\u1ea1n c\u00f3 bi\u1ebft lo\u1ea1i th\u00e9p, h\u01b0\u1edbng v\u00e0 \u0111\u01b0\u1eddng t\u1ea3i tr\u1ecdng c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac trong thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n, hay b\u1ea1n ch\u1ec9 \u0111ang x\u1ebfp ch\u1ed3ng kim lo\u1ea1i cho \u0111\u1ebfn khi n\u00f3 \u201ctr\u00f4ng m\u1ea1nh\u201d?<\/p>\n\n\n\n B\u1edfi v\u00ec m\u1ed9t khi b\u1ea1n ch\u1ea5p nh\u1eadn r\u1eb1ng chi\u1ebfc k\u00edch s\u1ebd lu\u00f4n th\u1eafng, b\u01b0\u1edbc \u0111i duy nh\u1ea5t h\u1ee3p l\u00fd c\u00f2n l\u1ea1i l\u00e0 ng\u1eebng \u0111o\u00e1n v\u00e0 t\u00ednh to\u00e1n l\u1ef1c m\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 c\u1ea7n \u0111\u1ec3 u\u1ed1n v\u1eadt li\u1ec7u c\u1ee7a m\u00ecnh ngay t\u1eeb \u0111\u1ea7u.<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 xem m\u1ed9t ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng v\u1edbi m\u1ed9t chi\u1ebfc k\u00edch 20 t\u1ea5n m\u1edbi c\u1ed1 g\u1eafng t\u1ea1o m\u1ed9t g\u00f3c 90 \u0111\u1ed9 s\u1ea1ch s\u1ebd tr\u00ean th\u00e9p m\u1ec1m 1\/8 inch, r\u1ed9ng 12 inch. Anh ta ngh\u0129, \u201cN\u00f3 m\u1ecfng. M\u1ed9t ph\u1ea7n t\u01b0 inch l\u00e0 th\u1ee9 kh\u00f3.\u201d Anh ta b\u01a1m cho \u0111\u1ebfn khi khung b\u1eaft \u0111\u1ea7u k\u00eau. T\u1ea5m th\u00e9p ch\u1ec9 ch\u1ea1m nh\u1eb9 v\u00e0o khu\u00f4n.<\/p>\n\n\n\n Anh ta kh\u00f4ng bi\u1ebft con s\u1ed1 m\u00e0 anh ta th\u1ef1c s\u1ef1 \u0111ang \u0111\u1ea5u tranh.<\/p>\n\n\n\n C\u00f3 m\u1ed9t c\u00f4ng th\u1ee9c ti\u00eau chu\u1ea9n trong c\u1eeda h\u00e0ng cho vi\u1ec7c u\u1ed1n th\u00e9p m\u1ec1m b\u1eb1ng kh\u00f4ng kh\u00ed:<\/p>\n\n\n\n Tonnage m\u1ed7i foot \u2248 (\u0110\u1ed9 d\u00e0y\u00b2 \u00d7 575) \u00f7 V-m\u1edf<\/strong><\/p>\n\n\n\n \u0110\u1ed9 d\u00e0y v\u00e0 V-m\u1edf t\u00ednh b\u1eb1ng inch. Con s\u1ed1 575 l\u00e0 m\u1ed9t h\u1eb1ng s\u1ed1 v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c t\u00ednh cho th\u00e9p m\u1ec1m. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e9p m\u00e0u. N\u00f3 l\u00e0 s\u1ee9c b\u1ec1n k\u00e9o v\u00e0 h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p l\u1ea1i.<\/p>\n\n\n\n V\u1eady h\u00e3y l\u00e0m to\u00e1n m\u00e0 b\u1ea1n \u0111\u00e3 tr\u00e1nh n\u00e9.<\/p>\n\n\n\n Th\u00e9p 1\/8 inch l\u00e0 0.125 inch. B\u00ecnh ph\u01b0\u01a1ng n\u00f3: 0.125 \u00d7 0.125 = 0.0156.<\/p>\n\n\n\n S\u1eed d\u1ee5ng m\u1ed9t V-m\u1edf th\u00f4ng th\u01b0\u1eddng cho \u0111\u1ed9 d\u00e0y \u0111\u00f3 \u2014 kho\u1ea3ng 8\u00d7 \u0111\u1ed9 d\u00e0y. 0.125 \u00d7 8 = 1.0 inch V-khu\u00f4n.<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y c\u1eafm n\u00f3 v\u00e0o:<\/p>\n\n\n\n (0.0156 \u00d7 575) \u00f7 1.0 \u2248 8.97 t\u1ea5n m\u1ed7i foot.<\/p>\n\n\n\n G\u1ecdi l\u00e0 9 t\u1ea5n m\u1ed7i foot.<\/p>\n\n\n\n M\u1ed9t foot r\u1ed9ng? Kho\u1ea3ng 9 t\u1ea5n. Hai feet r\u1ed9ng? 18 t\u1ea5n. Ba feet r\u1ed9ng? 27 t\u1ea5n.<\/p>\n\n\n\n C\u00e1i k\u00edch \u201c20 t\u1ea5n\u201d \u0111\u00f3 \u0111\u00e3 h\u1ebft s\u1ee9c tr\u01b0\u1edbc khi b\u1ea1n ho\u00e0n th\u00e0nh m\u1ed9t c\u00fa u\u1ed1n 36 inch.<\/p>\n\n\n\n V\u00e0 \u0111\u00f3 ch\u1ec9 l\u00e0 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1ef1c u\u1ed1n \u2014 kh\u00f4ng t\u00ednh \u0111\u1ebfn ma s\u00e1t, kh\u00f4ng th\u1eb3ng h\u00e0ng, ho\u1eb7c \u0111\u1ed9 linh ho\u1ea1t c\u1ee7a khung l\u1ea5y \u0111i m\u1ed9t ph\u1ea7n t\u1ea3i tr\u1ecdng tr\u01b0\u1edbc khi n\u00f3 \u0111\u1ebfn t\u1ea5m.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 ph\u1ea7n c\u00f3 th\u1ec3 l\u00e0m b\u1ea1n lo l\u1eafng: g\u1ea5p \u0111\u00f4i \u0111\u1ed9 d\u00e0y l\u00ean 1\/4\u2033 v\u00e0 b\u1ea1n kh\u00f4ng g\u1ea5p \u0111\u00f4i l\u1ef1c. B\u1ea1n ph\u1ea3i b\u00ecnh ph\u01b0\u01a1ng n\u00f3.<\/p>\n\n\n\n 0.25\u00b2 = 0.0625. \u0110\u00f3 l\u00e0 b\u1ed1n l\u1ea7n 0.0156.<\/p>\n\n\n\n T\u1ef7 l\u1ec7 V gi\u1ed1ng nhau, c\u00f9ng \u0111\u1ed9 r\u1ed9ng? B\u1ea1n v\u1eeba t\u0103ng g\u1ea5p b\u1ed1n t\u1ea5n c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n M\u1ed1i quan h\u1ec7 b\u00ecnh ph\u01b0\u01a1ng \u0111\u1ed9 d\u00e0y l\u00e0 l\u00fd do t\u1ea1i sao phanh t\u1ef1 ch\u1ebf ch\u1ebft \u0111\u1ed9t ng\u1ed9t. Ng\u01b0\u1eddi x\u00e2y d\u1ef1ng t\u0103ng quy m\u00f4 v\u1eadt li\u1ec7u \u201cm\u1ed9t ch\u00fat.\u201d T\u1ea3i tr\u1ecdng t\u0103ng l\u00ean r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n V\u00e0 kh\u00f4ng ai t\u00ednh to\u00e1n cho \u0111\u1ebfn khi c\u00f3 th\u1ee9 g\u00ec \u0111\u00f3 g\u00e3y.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: n\u1ebfu b\u1ea1n g\u1ea5p \u0111\u00f4i \u0111\u1ed9 d\u00e0y c\u1ee7a nh\u1eefng g\u00ec b\u1ea1n d\u1ef1 \u0111\u1ecbnh u\u1ed1n, b\u1ea1n \u0111\u00e3 nh\u00e2n t\u1ea5n c\u1ea7n thi\u1ebft c\u1ee7a m\u00ecnh l\u00ean b\u1ed1n l\u1ea7n \u2014 hay b\u1ea1n ch\u1ec9 gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng k\u00edch c\u1ee7a b\u1ea1n c\u00f2n \u201cnhi\u1ec1u s\u1ee9c\u201d?<\/p>\n\n\n\n H\u00e3y nh\u1ea5n m\u1ea1nh \u0111i\u1ec1u n\u00e0y v\u1edbi m\u1ed9t so s\u00e1nh khi\u1ebfn m\u1ecdi ng\u01b0\u1eddi nh\u1ea7m l\u1eabn.<\/p>\n\n\n\n Bi\u1ec3u \u0111\u1ed3 ng\u00e0nh cho th\u1ea5y nh\u00f4m 1\/8\u2033 qua m\u1ed9t khe V nh\u1ecf c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n kho\u1ea3ng 3 t\u1ea5n m\u1ed7i foot<\/strong>. \u0110\u1ed9 d\u00e0y gi\u1ed1ng nhau trong th\u00e9p nh\u1eb9? 25\u201330 t\u1ea5n m\u1ed7i foot<\/strong> trong m\u1ed9t s\u1ed1 thi\u1ebft l\u1eadp nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng \u0111\u1ed9 r\u1ed9ng. M\u01b0\u1eddi l\u1ea7n l\u1ef1c.<\/p>\n\n\n\n V\u1eadt li\u1ec7u quan tr\u1ecdng v\u00ec s\u1ee9c b\u1ec1n k\u00e9o quan tr\u1ecdng. Th\u00e9p nh\u1eb9 c\u00f3 s\u1ee9c b\u1ec1n kho\u1ea3ng 36,000 psi. C\u00e1c h\u1ee3p kim nh\u00f4m th\u00f4ng th\u01b0\u1eddng th\u1ea5p h\u01a1n nhi\u1ec1u. H\u1eb1ng s\u1ed1 c\u00f4ng th\u1ee9c thay \u0111\u1ed5i v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n c\u1ee7a kim lo\u1ea1i thay \u0111\u1ed5i.<\/p>\n\n\n\n V\u00ec v\u1eady, khi ai \u0111\u00f3 n\u00f3i, \u201cT\u00f4i \u0111\u00e3 u\u1ed1n 1\/8\u2033 kh\u00f4ng v\u1ea5n \u0111\u1ec1 g\u00ec,\u201d c\u00e2u h\u1ecfi \u0111\u1ea7u ti\u00ean kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ed9 d\u00e0y.<\/p>\n\n\n\n M\u00e0 l\u00e0 kim lo\u1ea1i g\u00ec?<\/p>\n\n\n\n B\u1ea1n c\u00f3 th\u1ea5y suy ngh\u0129 ch\u1ec9 d\u1ef1a v\u00e0o \u0111\u1ed9 d\u00e0y nguy hi\u1ec3m nh\u01b0 th\u1ebf n\u00e0o kh\u00f4ng? B\u1ea1n x\u00e2y d\u1ef1ng m\u1ed9t khung c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c th\u00ed nghi\u1ec7m v\u1edbi nh\u00f4m. Sau \u0111\u00f3, b\u1ea1n l\u1eafp th\u00e9p v\u00e0o.<\/p>\n\n\n\n B\u00e2y gi\u1edd \u201cl\u00f2 xo t\u1ee9c gi\u1eadn\u201d c\u1ee7a b\u1ea1n \u0111ang l\u01b0u tr\u1eef g\u1ea5p m\u01b0\u1eddi l\u1ea7n n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: l\u1ef1c th\u1ee7y l\u1ef1c kh\u00f4ng quan t\u00e2m \u0111\u1ebfn vi\u1ec7c b\u1ea1n d\u1ef1 \u0111\u1ecbnh u\u1ed1n cong c\u00e1i g\u00ec \u2014 n\u00f3 ch\u1ec9 bi\u1ebft \u00e1p su\u1ea5t, v\u00e0 n\u00f3 s\u1ebd ti\u1ebfp t\u1ee5c t\u1ea3i khung cho \u0111\u1ebfn khi th\u00e9p b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n b\u1ecb h\u1ecfng.<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 thi\u1ebft k\u1ebf cho c\u00e1i n\u00e0o?<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 qu\u00e9t d\u1ecdn m\u1ed9t m\u00e1y u\u1ed1n kim lo\u1ea1i b\u1ecb h\u1ecfng.<\/p>\n\n\n\n Nh\u01b0ng h\u1ea7u h\u1ebft ch\u00fang kh\u00f4ng n\u1ed5 tr\u01b0\u1edbc. Ch\u00fang l\u1eeba b\u1ea1n.<\/p>\n\n\n\n Tr\u00ean nh\u1eefng phanh c\u00f4ng nghi\u1ec7p l\u1edbn \u2014 nh\u1eefng qu\u00e1i v\u1eadt 150 t\u1ea5n \u2014 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00f4ng cho ph\u00e9p b\u1ea1n s\u1eed d\u1ee5ng to\u00e0n b\u1ed9 c\u00f4ng su\u1ea5t tr\u00ean to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t. H\u1ecd s\u1ebd gi\u1edbi h\u1ea1n \u1edf m\u1ee9c kho\u1ea3ng 25 t\u1ea5n m\u1ed7i foot, ngay c\u1ea3 khi h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c c\u00f3 th\u1ec3 \u0111\u1ea9y nhi\u1ec1u h\u01a1n. T\u1ea1i sao? \u0110\u1ec3 ki\u1ec3m so\u00e1t s\u1ef1 u\u1ed1n cong<\/strong>.<\/p>\n\n\n\n S\u1ef1 u\u1ed1n cong l\u00e0 s\u1ef1 u\u1ed1n d\u1ebbo \u2014 t\u1ea1m th\u1eddi. Khung u\u1ed1n cong m\u1ed9t v\u00e0i ph\u1ea7n ngh\u00ecn. B\u1ea1n c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i g\u00f3c. C\u00f3 th\u1ec3 \u00b11.5 \u0111\u1ed9 tr\u00ean chi\u1ec1u d\u00e0i.<\/p>\n\n\n\n \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng nghe c\u00f3 v\u1ebb nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n Nh\u01b0ng n\u00f3 l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn l\u00e2u tr\u01b0\u1edbc khi th\u00e9p b\u1ecb n\u1ee9t.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 c\u01a1 ch\u1ebf: khi d\u1ea7m tr\u00ean c\u00f9ng u\u1ed1n cong, m\u0169i khoan v\u00e0 khu\u00f4n m\u1ea5t \u0111i t\u00ednh song song. T\u1ea3i tr\u1ecdng t\u1eadp trung \u1edf gi\u1eefa. Trung t\u00e2m u\u1ed1n cong nhi\u1ec1u h\u01a1n. C\u00e1c \u0111\u1ea7u ch\u1eadm l\u1ea1i. B\u1ea1n b\u01a1m qu\u00e1 m\u1ee9c \u0111\u1ec3 s\u1eeda c\u00e1c \u0111\u1ea7u. B\u00e2y gi\u1edd trung t\u00e2m b\u1ecb u\u1ed1n cong qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n B\u1ea1n b\u00f9 \u0111\u1eafp b\u1eb1ng m\u1eaft. B\u00e2y gi\u1edd m\u1ed7i b\u1ed9 ph\u1eadn \u0111\u1ec1u h\u01a1i kh\u00e1c nhau.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 s\u1ef1 u\u1ed1n cong.<\/p>\n\n\n\n S\u1ef1 h\u1ecfng l\u00e0 khi \u1ee9ng su\u1ea5t v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n trong khung c\u1ee7a b\u1ea1n \u2014 m\u1ed1i h\u00e0n b\u1ecb r\u00e1ch, m\u00e9p b\u1ecb cong, t\u1ea5m b\u1ecb n\u1ee9t. \u0110\u00f3 l\u00e0 v\u0129nh vi\u1ec5n. \u0110\u00f3 l\u00e0 m\u1ea3nh v\u1ee5n trong gara.<\/p>\n\n\n\n S\u1ef1 u\u1ed1n cong l\u00e0 m\u1ed9t c\u1ea3nh b\u00e1o. S\u1ef1 h\u1ecfng l\u00e0 h\u1eadu qu\u1ea3 c\u1ee7a vi\u1ec7c ph\u1edbt l\u1edd n\u00f3.<\/p>\n\n\n\n V\u00e0 \u0111\u00e2y l\u00e0 \u0111i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd: c\u00e1c khung DIY th\u01b0\u1eddng c\u00f3 b\u1ec1 m\u1eb7t ng\u1eafn h\u01a1n nh\u01b0ng t\u1ef7 l\u1ec7 d\u1ea7m m\u1ecfng h\u01a1n so v\u1edbi c\u00e1c m\u00e1y c\u00f4ng nghi\u1ec7p. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 s\u1ed1 t\u1ea5n cho ph\u00e9p m\u1ed7i foot c\u1ee7a ch\u00fang th\u01b0\u1eddng th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a k\u00edch.<\/p>\n\n\n\n V\u00ec v\u1eady, ngay c\u1ea3 khi k\u00edch c\u1ee7a b\u1ea1n n\u00f3i 20 t\u1ea5n, khung c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ecbu \u0111\u01b0\u1ee3c 8 ho\u1eb7c 10 t\u1ea5n m\u1ed7i foot tr\u01b0\u1edbc khi s\u1ef1 u\u1ed1n cong tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n B\u1ea1n kh\u00f4ng m\u1ea5t m\u00e1y ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n B\u1ea1n m\u1ea5t \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u01b0\u1edbc.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1edb ng\u1ea9n: b\u1ea1n c\u00f3 thi\u1ebft k\u1ebf ch\u1ec9 \u0111\u1ec3 tr\u00e1nh th\u1ea5t b\u1ea1i th\u1ea3m kh\u1ed1c, hay b\u1ea1n \u0111\u00e3 t\u00ednh to\u00e1n xem khung c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng bao nhi\u00eau \u0111\u1ed9 cong tr\u01b0\u1edbc khi c\u00e1c \u0111\u01b0\u1eddng cong c\u1ee7a b\u1ea1n b\u1ecb l\u1ec7ch?<\/p>\n\n\n\n H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng hai c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n C\u00f4ng vi\u1ec7c m\u1ed9t: t\u1ea5m 1\/4\u2033, r\u1ed9ng 6 inch. C\u00f4ng vi\u1ec7c hai: t\u1ea5m 1\/8\u2033, r\u1ed9ng 36 inch.<\/p>\n\n\n\n H\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u s\u1ee3 t\u1ea5m d\u00e0y h\u01a1n.<\/p>\n\n\n\n Ch\u1ea1y to\u00e1n.<\/p>\n\n\n\n Ch\u00fang ta \u0111\u00e3 th\u1ea5y 1\/4\u2033 kho\u1ea3ng b\u1ed1n l\u1ea7n l\u1ef1c c\u1ee7a 1\/8\u2033, m\u1ed7i foot.<\/p>\n\n\n\n Nh\u01b0ng c\u00f4ng vi\u1ec7c 1\/4\u2033 ch\u1ec9 r\u1ed9ng n\u1eeda foot. C\u00f4ng vi\u1ec7c 1\/8\u2033 r\u1ed9ng ba feet.<\/p>\n\n\n\n V\u00ec v\u1eady, t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng c\u00f3 th\u1ec3 k\u1ebft th\u00fac t\u01b0\u01a1ng t\u1ef1 \u2014 ho\u1eb7c th\u1eadm ch\u00ed cao h\u01a1n \u2014 cho t\u1ea5m m\u1ecfng h\u01a1n, r\u1ed9ng h\u01a1n.<\/p>\n\n\n\n L\u1ef1c t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi chi\u1ec1u r\u1ed9ng. G\u1ea5p \u0111\u00f4i chi\u1ec1u d\u00e0i u\u1ed1n, g\u1ea5p \u0111\u00f4i tr\u1ecdng l\u01b0\u1ee3ng. Nh\u01b0ng \u0111\u1ed9 d\u00e0y? N\u00f3 \u0111\u01b0\u1ee3c b\u00ecnh ph\u01b0\u01a1ng.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i th\u1ef1c s\u1ef1 x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng c\u1ee7a m\u00e1y c\u1ee7a b\u1ea1n: \u0111\u1ed9 d\u00e0y t\u1ed1i \u0111a \u1edf chi\u1ec1u r\u1ed9ng t\u1ed1i \u0111a<\/strong>, kh\u00f4ng ph\u1ea3i m\u1ed9t con s\u1ed1 khoe khoang n\u00e0o \u0111\u00f3.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao m\u00e1y c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo t\u1ea5n m\u1ed7i foot. M\u1ed9t m\u00e1y phanh 150 t\u1ea5n tr\u00ean 10 feet kh\u00f4ng ph\u1ea3i l\u00e0 \u201c150 t\u1ea5n \u1edf b\u1ea5t k\u1ef3 \u0111\u00e2u.\u201d N\u00f3 kho\u1ea3ng 15 t\u1ea5n m\u1ed7i foot \u2014 v\u00e0 ngay c\u1ea3 \u0111i\u1ec1u \u0111\u00f3 c\u0169ng th\u01b0\u1eddng b\u1ecb gi\u1ea3m b\u1edbt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 l\u1ec7ch.<\/p>\n\n\n\n N\u1ebfu m\u00e1y phanh trong gara c\u1ee7a b\u1ea1n c\u00f3 b\u00e0n 24 inch v\u00e0 b\u1ea1n mu\u1ed1n u\u1ed1n th\u00e9p 1\/8\u2033 to\u00e0n chi\u1ec1u r\u1ed9ng, b\u1ea1n \u0111ang nh\u00ecn v\u00e0o kho\u1ea3ng 18 t\u1ea5n y\u00eau c\u1ea7u. \u0110\u00f3 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n Kh\u00f4ng ph\u1ea3i l\u00e0 k\u00edch.<\/p>\n\n\n\n L\u00e0 v\u1eadt l\u00fd.<\/p>\n\n\n\n V\u1eady \u0111\u00e2y l\u00e0 c\u00e2u h\u1ecfi b\u1ea1n n\u00ean \u0111\u1eb7t ra ti\u1ebfp theo: n\u1ebfu c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u 18 t\u1ea5n tr\u00ean hai feet, khung ph\u1ea3i c\u1ee9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ee9a n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 m\u00e0 kh\u00f4ng b\u1ecb cong, xo\u1eafn, ho\u1eb7c l\u01b0u tr\u1eef \u0111\u1ee7 c\u01a1n gi\u1eadn \u0111\u00e0n h\u1ed3i \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1ea3nh v\u1ee5n khi c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 tr\u01b0\u1ee3t?<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 h\u1ecfi khung ph\u1ea3i c\u1ee9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c 18 t\u1ea5n tr\u00ean hai ch\u00e2n.<\/p>\n\n\n\n H\u00e3y \u0111\u01b0a ra s\u1ed1 li\u1ec7u thay v\u00ec c\u1ea3m gi\u00e1c.<\/p>\n\n\n\n M\u01b0\u1eddi t\u00e1m t\u1ea5n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 36.000 pound l\u1ef1c. Ph\u00e2n b\u1ed5 tr\u00ean 24 inch, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 1.500 pound m\u1ed7i inch \u0111\u1ea9y l\u00ean khu\u00f4n c\u1ee7a b\u1ea1n v\u00e0 \u0111\u00e8 xu\u1ed1ng b\u00faa c\u1ee7a b\u1ea1n. C\u00e1i ram kh\u00f4ng ph\u1ea3i l\u00e0 \u201c\u0111ang \u1ea5n nh\u1eb9.\u201d N\u00f3 \u0111ang n\u00e9n c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n nh\u01b0 m\u1ed9t l\u00f2 xo \u0111\u00e3 n\u1ea1p. N\u1ebfu d\u1ea7m tr\u00ean c\u00f9ng c\u1ee7a b\u1ea1n tr\u1ea3i d\u00e0i 24 inch gi\u1eefa c\u00e1c c\u1ed9t, b\u1ea1n c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a n\u00f3 nh\u01b0 m\u1ed9t d\u1ea7m h\u1ed7 tr\u1ee3 \u0111\u01a1n v\u1edbi t\u1ea3i tr\u1ecdng \u1edf gi\u1eefa. To\u00e1n h\u1ecdc c\u01a1 b\u1ea3n v\u1ec1 \u0111\u1ed9 v\u00f5ng c\u1ee7a d\u1ea7m cho bi\u1ebft \u0111\u1ed9 v\u00f5ng t\u1ef7 l\u1ec7 v\u1edbi l\u1ef1c \u00d7 kho\u1ea3ng c\u00e1ch\u00b3 \/ (E \u00d7 I)<\/strong>. E l\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a th\u00e9p (kho\u1ea3ng 29 tri\u1ec7u psi). I l\u00e0 m\u00f4 men di\u1ec7n t\u00edch l\u1ea7n hai \u2014 ph\u1ea7n m\u00e0 b\u1ea1n ki\u1ec3m so\u00e1t b\u1eb1ng k\u00edch th\u01b0\u1edbc m\u1eb7t c\u1eaft.<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n \u0111\u00e3 x\u00e2y d\u1ef1ng d\u1ea7m tr\u00ean c\u00f9ng t\u1eeb m\u1ed9t \u1ed1ng vu\u00f4ng 4x4x1\/4 inch. Gi\u00e1 tr\u1ecb I c\u1ee7a n\u00f3 l\u00e0 khi\u00eam t\u1ed1n. Ch\u1ea1y to\u00e1n v\u00e0 b\u1ea1n s\u1ebd th\u1ea5y \u0111\u1ed9 v\u00f5ng \u1edf gi\u1eefa \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng ph\u1ea7n tr\u0103m c\u1ee7a m\u1ed9t inch d\u01b0\u1edbi 36.000 pound. Nghe c\u00f3 v\u1ebb nh\u1ecf cho \u0111\u1ebfn khi b\u1ea1n nh\u1eadn ra r\u1eb1ng \u0111\u1ed9 l\u1ec7ch cong m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0 \u00b11 \u0111\u1ed9. M\u1ed9t v\u00e0i ph\u1ea7n tr\u0103m \u1edf b\u00faa chuy\u1ec3n th\u00e0nh l\u1ed7i g\u00f3c \u0111\u00e1ng ch\u00fa \u00fd \u2014 v\u00e0 t\u1ec7 h\u01a1n, n\u00f3 t\u1eadp trung t\u1ea3i tr\u1ecdng \u1edf gi\u1eefa, \u0111i\u1ec1u n\u00e0y l\u00e0m t\u0103ng c\u0103ng th\u1eb3ng c\u1ee5c b\u1ed9 v\u00e0 l\u00e0m t\u0103ng \u0111\u1ed9 v\u00f5ng.<\/p>\n\n\n\n Nh\u01b0ng \u0111\u00e2y l\u00e0 ph\u1ea7n m\u00e0 nh\u1eefng ng\u01b0\u1eddi x\u00e2y d\u1ef1ng xanh th\u01b0\u1eddng b\u1ecf qua: \u0111\u1ed9 v\u00f5ng kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ec1 c\u00e1c ph\u1ea7n cong. \u0110\u00f3 l\u00e0 n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef. N\u1ebfu d\u1ea7m \u0111\u00f3 cong 0.030 inch d\u01b0\u1edbi t\u1ea3i tr\u1ecdng, n\u00f3 \u0111ang gi\u1eef n\u0103ng l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i. N\u1ebfu m\u1ed9t m\u1ed1i h\u00e0n b\u1ecb r\u00e1ch ho\u1eb7c m\u1ed9t khu\u00f4n b\u1ecb tr\u01b0\u1ee3t, n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 s\u1ebd gi\u1ea3i ph\u00f3ng ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 c\u00e1ch b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c m\u1ea3nh v\u1ee5n trong gara.<\/p>\n\n\n\n Nh\u01b0ng n\u1ebfu khung b\u1ecb u\u1ed1n, n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 s\u1ebd \u0111i \u0111\u00e2u \u0111\u00f3 tr\u01b0\u1edbc ti\u00ean: v\u00e0o vi\u1ec7c u\u1ed1n c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n nh\u01b0 m\u1ed9t c\u00e2y cung.<\/p>\n\n\n\n V\u00ec v\u1eady, ch\u00fang t\u00f4i thi\u1ebft k\u1ebf ng\u01b0\u1ee3c l\u1ea1i. B\u1eaft \u0111\u1ea7u v\u1edbi 18 t\u1ea5n. Quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 v\u00f5ng m\u00e0 b\u1ea1n s\u1ebd ch\u1ea5p nh\u1eadn \u2014 gi\u1ea3 s\u1eed 0.005\u20130.010 inch \u1edf gi\u1eefa cho m\u1ed9t kho\u1ea3ng c\u00e1ch 24 inch n\u1ebfu b\u1ea1n mu\u1ed1n c\u00e1c \u0111\u1ed9 cong nh\u1ea5t qu\u00e1n. Gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh d\u1ea7m \u0111\u1ec3 t\u00ecm I c\u1ea7n thi\u1ebft. \u0110i\u1ec1u \u0111\u00f3 cho b\u1ea1n bi\u1ebft li\u1ec7u b\u1ea1n c\u1ea7n m\u1ed9t k\u00eanh 6 inch \u0111\u01b0\u1ee3c \u0111\u00f3ng h\u1ed9p v\u00e0o m\u1ed9t \u1ed1ng, m\u1ed9t d\u1ea7m t\u1ea5m laminate, ho\u1eb7c hai \u1ed1ng \u0111\u01b0\u1ee3c \u0111\u1eb7t c\u00e1ch nhau theo chi\u1ec1u d\u1ecdc \u0111\u1ec3 t\u0103ng chi\u1ec1u cao m\u1eb7t c\u1eaft. Chi\u1ec1u cao l\u00e0 vua v\u00ec I t\u0103ng theo l\u1eadp ph\u01b0\u01a1ng c\u1ee7a \u0111\u1ed9 s\u00e2u m\u1eb7t c\u1eaft. G\u1ea5p \u0111\u00f4i chi\u1ec1u cao v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n B\u1ea1n kh\u00f4ng \u0111o\u00e1n \u0111\u1ed9 c\u1ee9ng. B\u1ea1n t\u00ednh to\u00e1n n\u00f3, sau \u0111\u00f3 x\u00e2y d\u1ef1ng theo \u0111\u00f3.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: b\u1ea1n \u0111\u00e3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc d\u1ea7m tr\u00ean c\u00f9ng c\u1ee7a m\u00ecnh t\u1eeb gi\u1edbi h\u1ea1n \u0111\u1ed9 v\u00f5ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a \u2014 hay b\u1ea1n \u0111\u00e3 ch\u1ecdn th\u00e9p m\u00e0 \u201ctr\u00f4ng d\u00e0y \u0111\u1ee7\u201d?<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 c\u00f3 kh\u00e1ch h\u00e0ng mang v\u00e0o m\u1ed9t m\u00e1y \u00e9p 20 t\u1ea5n v\u1edbi m\u1ed9t khu\u00f4n t\u1ef1 ch\u1ebf h\u00e0n gi\u1eefa c\u00e1c c\u1ed9t v\u00e0 n\u00f3i, \u201cN\u00f3 \u0111\u00e3 ghi 20 t\u1ea5n r\u1ed3i.\u201d<\/p>\n\n\n\n Nh\u1eefng m\u00e1y \u00e9p \u0111\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho n\u00e9n d\u1ecdc gi\u1eefa hai t\u1ea5m, kh\u00f4ng ph\u1ea3i \u0111\u1ec3 ch\u1ed1ng l\u1ea1i t\u1ea3i tr\u1ecdng lan r\u1ed9ng ngang t\u1eeb m\u1ed9t khu\u00f4n r\u1ed9ng. C\u00e1c c\u1ed9t th\u01b0\u1eddng l\u00e0 c\u00e1c k\u00eanh C m\u1ea3nh. D\u01b0\u1edbi m\u1ed9t c\u00f4ng vi\u1ec7c \u00e9p trung t\u00e2m, th\u00ec t\u1ed1t. D\u01b0\u1edbi t\u1ea3i tr\u1ecdng phanh 24 inch, c\u00e1c c\u1ed9t c\u1ed1 g\u1eafng m\u1edf ra b\u00ean ngo\u00e0i v\u00ec c\u00e1c l\u1ef1c ph\u1ea3n \u1ee9ng c\u1ee7a khu\u00f4n \u0111\u1ea9y ngang \u1edf \u0111\u00e1y trong khi c\u00e1i ram \u0111\u1ea9y xu\u1ed1ng \u1edf tr\u00ean c\u00f9ng.<\/p>\n\n\n\n \u0110\u01b0\u1eddng \u0111i t\u1ea3i tr\u1ecdng kh\u00e1c nhau.<\/p>\n\n\n\n Trong m\u1ed9t c\u00e1i phanh, l\u1ef1c \u0111i: ram \u2192 d\u1ea7m tr\u00ean c\u00f9ng \u2192 c\u1ed9t trong n\u00e9n \u2192 d\u1ea7m d\u01b0\u1edbi c\u00f9ng trong u\u1ed1n \u2192 quay tr\u1edf l\u1ea1i c\u1ed9t. Trong khi \u0111\u00f3, khu\u00f4n t\u1ea1o ra c\u00e1c th\u00e0nh ph\u1ea7n ngang c\u1ed1 g\u1eafng l\u00e0m l\u1ec7ch khung. Khung c\u1ee7a m\u00e1y \u00e9p th\u01b0\u1eddng c\u00f3 c\u00e1c thanh ch\u00e9o \u0111\u01b0\u1ee3c ghim ho\u1eb7c h\u00e0n nh\u1eb9. N\u00f3 kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t khung m\u00f4 men c\u1ee9ng.<\/p>\n\n\n\n V\u00e0 \u0111\u00e2y l\u00e0 n\u01a1i c\u00e1c ti\u00eau chu\u1ea9n len l\u1ecfi v\u00e0o d\u00f9 b\u1ea1n th\u00edch hay kh\u00f4ng. Kho\u1ea3nh kh\u1eafc b\u1ea1n s\u1eed d\u1ee5ng m\u00e1y \u00e9p \u0111\u00f3 nh\u01b0 m\u1ed9t c\u00e1i phanh, n\u00f3 th\u1ef1c s\u1ef1 tr\u1edf th\u00e0nh m\u1ed9t m\u00e1y phanh \u00e9p. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 h\u00e0nh vi d\u1eebng l\u1ea1i, \u0111i\u1ec1u khi\u1ec3n m\u1ed9t l\u1ea7n, v\u00e0 k\u1ef3 v\u1ecdng b\u1ea3o v\u1ec7 thay \u0111\u1ed5i. C\u00e1c h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c kh\u00f4ng d\u1eebng l\u1ea1i ngay l\u1eadp t\u1ee9c. C\u00f3 \u0111\u1ed9 tr\u1ec5 \u2014 \u00edt nh\u1ea5t l\u00e0 h\u00e0ng ch\u1ee5c mili gi\u00e2y. \u1ede t\u1ed1c \u0111\u1ed9 ram \u0111i\u1ec3n h\u00ecnh tr\u00ean 10 mm\/s, kho\u1ea3ng c\u00e1ch d\u1eebng tr\u1edf n\u00ean kh\u00f4ng t\u1ea7m th\u01b0\u1eddng. N\u1ebfu thi\u1ebft k\u1ebf khung c\u1ee7a b\u1ea1n gi\u1ea3 \u0111\u1ecbnh \u201ct\u00f4i ch\u1ec9 c\u1ea7n bu\u00f4ng tay kh\u1ecfi c\u1ea7n,\u201d b\u1ea1n \u0111ang gi\u1ea3 \u0111\u1ecbnh away n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng m\u00e0 v\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: n\u1ebfu khung m\u00e1y \u00e9p c\u1ee7a b\u1ea1n ch\u1ec9 \u0111\u1ee7 c\u1ee9ng cho t\u1ea3i tr\u1ecdng t\u0129nh nh\u01b0ng kh\u00f4ng cho s\u1ef1 v\u01b0\u1ee3t qu\u00e1 \u0111\u1ed9ng \u0111\u00f3, b\u1ea1n \u0111\u00e3 x\u00e2y d\u1ef1ng m\u1ed9t c\u00e1i l\u1ed3ng l\u00f2 xo v\u1edbi m\u1ed9t c\u00e1nh c\u1eeda l\u1ecfng l\u1ebbo.<\/p>\n\n\n\n M\u1ed9t khung H chuy\u00ean d\u1ee5ng cho ph\u00e9p b\u1ea1n ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc m\u1eb7t c\u1eaft, chi\u1ec1u d\u00e0i h\u00e0n, v\u00e0 h\u00ecnh h\u1ecdc m\u1ed1i n\u1ed1i \u0111\u1ec3 \u0111\u01b0\u1eddng \u0111i t\u1ea3i tr\u1ecdng l\u00e0 li\u00ean t\u1ee5c v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00f3ng h\u1ed9p. B\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf c\u00e1c c\u1ed9t nh\u01b0 nh\u1eefng c\u1ed9t th\u1ef1c s\u1ef1 v\u1edbi m\u1eb7t c\u1eaft \u0111\u1ee7 l\u1edbn \u0111\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng u\u1ed1n, bu\u1ed9c ch\u00fang l\u1ea1i v\u1edbi nhau b\u1eb1ng m\u1ed9t d\u1ea7m d\u01b0\u1edbi c\u00f9ng \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc cho \u0111\u1ed9 c\u1ee9ng u\u1ed1n, v\u00e0 h\u00e0n ho\u00e0n to\u00e0n c\u00e1c g\u00f3c \u0111\u1ec3 t\u1ea1o ra c\u00e1c k\u1ebft n\u1ed1i m\u00f4 men thay v\u00ec c\u00e1c b\u1ea3n l\u1ec1 l\u1ecfng l\u1ebbo.<\/p>\n\n\n\n Th\u00edch \u1ee9ng l\u00e0 s\u1ef1 ti\u1ec7n l\u1ee3i. Thi\u1ebft k\u1ebf l\u00e0 s\u1ef1 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n C\u00e1i n\u00e0o \u0111\u00e1p \u1ee9ng cho th\u1ef1c t\u1ebf 36,000 pound \u0111\u1ea7y \u0111\u1ee7?<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 qu\u00e9t d\u1ecdn m\u1ed9t m\u00e1y u\u1ed1n b\u1ecb h\u1ecfng v\u00ec m\u1ed9t nh\u00e0 th\u1ea7u \u0111\u00e3 tin t\u01b0\u1edfng v\u00e0o c\u00e1c m\u1ed1i h\u00e0n g\u00f3c nh\u01b0 th\u1ec3 ch\u00fang l\u00e0 keo ma thu\u1eadt.<\/p>\n\n\n\n Kh\u00f4ng ph\u1ea3i v\u1eady.<\/p>\n\n\n\n Trong khung H c\u1ee7a b\u1ea1n, ch\u1ec9 c\u00f3 m\u1ed9t v\u00e0i y\u1ebfu t\u1ed1 ch\u1ecbu t\u1ea3i tr\u1ecdng d\u1ecdc th\u1ef1c s\u1ef1:<\/p>\n\n\n\n M\u1ecdi th\u1ee9 kh\u00e1c \u2014 c\u00e1c t\u1ea5m gia c\u01b0\u1eddng, c\u00e1c t\u1ea5m b\u00ean, c\u00e1c gi\u00e1 \u0111\u1ee1 \u2014 ch\u1ee7 y\u1ebfu gi\u1eef cho h\u00ecnh h\u1ecdc trung th\u1ef1c.<\/p>\n\n\n\n H\u00e3y n\u00f3i v\u1ec1 c\u00e1c kh\u1edbp n\u1ed1i. N\u1ebfu d\u1ea7m tr\u00ean c\u1ee7a b\u1ea1n g\u1eb7p c\u1ed9t \u0111\u1ee9ng v\u1edbi m\u1ed9t m\u1ed1i h\u00e0n g\u00f3c ng\u1eafn \u1edf g\u00f3c ngo\u00e0i, th\u00ec m\u1ed1i h\u00e0n \u0111\u00f3 b\u00e2y gi\u1edd c\u00f3 tr\u00e1ch nhi\u1ec7m chuy\u1ec3n giao m\u00f4 men u\u1ed1n t\u1eeb d\u1ea7m v\u00e0o c\u1ed9t. D\u01b0\u1edbi 36,000 pound \u1edf gi\u1eefa, m\u00f4 men cu\u1ed1i c\u00f3 th\u1ec3 l\u00ean t\u1edbi h\u00e0ng ch\u1ee5c ng\u00e0n inch-pound. M\u1ed9t m\u1ed1i h\u00e0n g\u00f3c nh\u1ecf ch\u1ecbu t\u1ea3i trong u\u1ed1n v\u00e0 c\u1eaft c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 \u1ee9ng su\u1ea5t cho ph\u00e9p r\u1ea5t nhanh.<\/p>\n\n\n\n M\u1ed9t m\u1ed1i h\u00e0n r\u00e3nh th\u1ea5u ho\u1eb7c m\u1ed9t kh\u1edbp n\u1ed1i h\u1ed9p v\u1edbi c\u00e1c \u1ed1ng b\u00ean trong ph\u00e2n t\u00e1n \u1ee9ng su\u1ea5t \u0111\u00f3 qua \u0111\u1ed9 d\u00e0y, kh\u00f4ng ch\u1ec9 d\u1ecdc theo m\u1ed9t b\u1ec1 m\u1eb7t. Bu l\u00f4ng? T\u1ed1t \u2014 n\u1ebfu ch\u00fang \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc cho c\u1eaft v\u00e0 l\u1ef1c k\u1eb9p v\u00e0 b\u1ea1n hi\u1ec3u c\u00e1c kh\u1edbp n\u1ed1i quan tr\u1ecdng v\u1ec1 tr\u01b0\u1ee3t. Nh\u01b0ng m\u1ed9t v\u00e0i bu l\u00f4ng lo\u1ea1i 5 t\u1eeb c\u1eeda h\u00e0ng ph\u1ea7n c\u1ee9ng trong c\u00e1c l\u1ed7 th\u00f4ng tho\u00e1ng kh\u00f4ng ph\u1ea3i l\u00e0 chi\u1ebfn l\u01b0\u1ee3c c\u1ea5u tr\u00fac. Ch\u00fang ch\u1ec9 l\u00e0 c\u00f4ng c\u1ee5 c\u0103n ch\u1ec9nh t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n V\u00e0 \u0111\u1eebng qu\u00ean hi\u1ec7n t\u01b0\u1ee3ng cong c\u1ed9t. M\u1ed9t c\u1ed9t \u0111\u1ee9ng r\u1ed9ng 3 inch l\u00e0m t\u1eeb \u1ed1ng t\u01b0\u1eddng d\u00e0y 1\/4 inch c\u00f3 th\u1ec3 x\u1eed l\u00fd 36,000 pound trong n\u00e9n thu\u1ea7n t\u00fay tr\u00ean gi\u1ea5y. Nh\u01b0ng th\u00eam m\u1ed9t ch\u00fat l\u1ec7ch do kh\u00f4ng c\u0103n ch\u1ec9nh v\u00e0 y\u1ebfu t\u1ed1 chi\u1ec1u d\u00e0i hi\u1ec7u qu\u1ea3 t\u0103ng v\u1ecdt. C\u00e1c c\u1ed9t m\u1ea3nh s\u1ebd cong. Khi ch\u00fang cong, \u1ee9ng su\u1ea5t t\u0103ng v\u1ecdt.<\/p>\n\n\n\n M\u1ed7i kh\u1edbp n\u1ed1i n\u00ean tr\u1ea3 l\u1eddi m\u1ed9t c\u00e2u h\u1ecfi: n\u1ebfu ram cung c\u1ea5p t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c \u0111\u1ea7y \u0111\u1ee7 c\u1ed9ng th\u00eam m\u1ed9t ch\u00fat \u0111\u1ed9 tr\u1ec5 th\u1ee7y l\u1ef1c, th\u00ec k\u1ebft n\u1ed1i n\u00e0y c\u00f3 v\u1eabn \u1edf trong ph\u1ea1m vi \u0111\u00e0n h\u1ed3i kh\u00f4ng?<\/p>\n\n\n\n N\u1ebfu b\u1ea1n kh\u00f4ng bi\u1ebft, b\u1ea1n \u0111ang \u0111o\u00e1n.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 v\u00e0o t\u1eebng m\u1ed1i h\u00e0n trong \u0111\u01b0\u1eddng t\u1ea3i c\u1ee7a b\u1ea1n v\u00e0 cho bi\u1ebft li\u1ec7u n\u00f3 \u0111ang ch\u1ecbu m\u00f4 men u\u1ed1n, c\u1eaft, hay ch\u1ec9 gi\u1eef cho c\u0103n ch\u1ec9nh \u2014 hay t\u1ea5t c\u1ea3 ch\u00fang ch\u1ec9 l\u00e0 \u201ch\u00e0n ch\u1eafc ch\u1eafn\u201d?<\/p>\n\n\n\n B\u1ea1n v\u00e0 t\u00f4i \u0111\u1ec1u bi\u1ebft r\u1eb1ng c\u00e1c m\u1ed1i h\u00e0n c\u1ee7a b\u1ea1n s\u1ebd kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u1ed1i x\u1ee9ng. C\u1ee7a t\u00f4i c\u0169ng v\u1eady, v\u00e0 t\u00f4i \u0111\u00e3 m\u1ea5t m\u1ed9t \u0111\u1ea7u ng\u00f3n tay \u0111\u1ec3 ch\u1ee9ng minh r\u1eb1ng t\u00f4i \u0111\u00e3 l\u00e0m vi\u1ec7c n\u00e0y m\u1ed9t th\u1eddi gian.<\/p>\n\n\n\n V\u00ec v\u1eady, h\u00e3y gi\u1ea3 \u0111\u1ecbnh s\u1ef1 kh\u00f4ng ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n N\u1ebfu ram ng\u1ed3i l\u1ec7ch ch\u1ec9 1\/16 inch so v\u1edbi trung t\u00e2m tr\u00ean m\u1ed9t kho\u1ea3ng c\u00e1ch 24 inch, t\u1ea3i tr\u1ecdng tr\u1edf n\u00ean l\u1ec7ch t\u00e2m. \u0110i\u1ec1u \u0111\u00f3 t\u1ea1o ra m\u1ed9t m\u00f4 men xo\u1eafn trong d\u1ea7m tr\u00ean. Gi\u1edd \u0111\u00e2y, b\u1ea1n kh\u00f4ng ch\u1ec9 u\u1ed1n theo chi\u1ec1u d\u1ecdc; b\u1ea1n \u0111ang gi\u1edbi thi\u1ec7u xo\u1eafn. H\u1ea7u h\u1ebft c\u00e1c ph\u1ea7n m\u1edf \u2014 c\u00e1c k\u00eanh, \u1ed1ng \u0111\u01a1n \u2014 y\u1ebfu trong xo\u1eafn. Ch\u00fang xo\u1eafn, \u0111i\u1ec1u n\u00e0y chuy\u1ec3n t\u1ea3i tr\u1ecdng xa h\u01a1n sang m\u1ed9t b\u00ean, l\u00e0m t\u0103ng u\u1ed1n c\u1ed9t \u1edf m\u1ed9t c\u1ed9t \u0111\u1ee9ng.<\/p>\n\n\n\n S\u1ef1 c\u1ed1 chu\u1ed7i kh\u00f4ng t\u1ef1 th\u00f4ng b\u00e1o.<\/p>\n\n\n\n Ph\u01b0\u01a1ng ph\u00e1p ch\u1eefa tr\u1ecb l\u00e0 h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n V\u00e0 vi\u1ec7c ki\u1ec3m so\u00e1t l\u00e0 quan tr\u1ecdng. M\u1ed9t thi\u1ebft l\u1eadp ch\u1ed1ng l\u1eb7p ho\u1eb7c m\u1ed9t l\u1ea7n k\u00edch ho\u1ea1t \u0111\u1ea3m b\u1ea3o m\u1ed9t chu k\u1ef3 c\u00f3 ch\u1ee7 \u0111\u00edch m\u1ed7i l\u1ea7n k\u00edch ho\u1ea1t. N\u1ebfu m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n b\u1ecb k\u1eb9t v\u00e0 ram ti\u1ebfp t\u1ee5c quay v\u00f2ng, khung c\u1ee7a b\u1ea1n s\u1ebd ch\u1ecbu t\u1ea3i tr\u1ecdng c\u1ef1c \u0111\u1ea1i l\u1eb7p \u0111i l\u1eb7p l\u1ea1i \u2014 l\u00e3nh th\u1ed5 m\u1ec7t m\u1ecfi. \u0110\u00f3 l\u00e0 c\u00e1ch m\u00e0 c\u00e1c v\u1ebft n\u1ee9t b\u1eaft \u0111\u1ea7u \u1edf c\u00e1c m\u1ed1i h\u00e0n v\u00e0 ph\u00e1t tri\u1ec3n m\u1ed9t c\u00e1ch v\u00f4 h\u00ecnh.<\/p>\n\n\n\n C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t chuy\u00ean nghi\u1ec7p coi an to\u00e0n phanh l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p \u0111i l\u1eb7p l\u1ea1i v\u00ec m\u00e1y m\u00f3c th\u1ef1c s\u1ef1 ti\u1ebft l\u1ed9 nh\u1eefng \u0111i\u1ec3m y\u1ebfu th\u1ef1c s\u1ef1 theo th\u1eddi gian. B\u1ea1n kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c v\u00f2ng ph\u1ea3n h\u1ed3i \u0111\u00f3 trong m\u1ed9t gara. V\u00ec v\u1eady, b\u1ea1n x\u00e2y d\u1ef1ng \u0111\u1ed9 c\u1ee9ng qu\u00e1 m\u1ee9c, ki\u1ec3m so\u00e1t s\u1ef1 c\u0103n ch\u1ec9nh v\u00e0 gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng m\u1ed1i h\u00e0n \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n kh\u00f4ng ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n B\u1edfi v\u00ec m\u00e1y n\u00e0y l\u00e0 m\u1ed9t c\u00e1i l\u1ed3ng gi\u1eef m\u1ed9t l\u00f2 xo n\u00e9n, t\u1ee9c gi\u1eadn.<\/p>\n\n\n\n C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 l\u00e0m cho n\u00f3 m\u1ea1nh m\u1ebd m\u1ed9t l\u1ea7n. C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i \u0111\u01b0\u1eddng t\u1ea3i, m\u1ed7i m\u1ed1i n\u1ed1i, m\u1ed7i l\u1ef1a ch\u1ecdn \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec1u ch\u1ee9a l\u00f2 xo \u0111\u00f3 m\u1ed7i l\u1ea7n b\u1ea1n k\u00e9o c\u1ea7n.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: n\u1ebfu ram c\u1ee7a b\u1ea1n l\u1ec7ch 1\/16 inch v\u00e0 h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c v\u01b0\u1ee3t qu\u00e1 trong 50 mili gi\u00e2y, khung c\u1ee7a b\u1ea1n c\u00f3 gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh \u0111\u00e0n h\u1ed3i kh\u00f4ng \u2014 hay b\u1ea1n ch\u1ec9 c\u00e1ch m\u1ed9t m\u1ed1i h\u00e0n k\u00e9m m\u1ed9t b\u01b0\u1edbc \u0111\u1ec3 qu\u00e9t s\u00e0n?<\/p>\n\n\n\n B\u1ea1n mu\u1ed1n k\u00edch th\u01b0\u1edbc d\u1ea7m v\u00e0 th\u00f4ng s\u1ed1 h\u00e0n cho 18 t\u1ea5n. T\u1ed1t. Nh\u01b0ng \u0111\u00e2y l\u00e0 \u0111i\u1ec1u m\u00e0 kh\u00f4ng ai n\u00f3i v\u1edbi b\u1ea1n tr\u00ean b\u1ea3n ph\u00e1c th\u1ea3o: b\u1ea1n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t khung \u0111\u1ee7 ch\u1eafc ch\u1eafn \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c 36,000 pound v\u00e0 v\u1eabn t\u1ea1o ra c\u00e1c b\u1ed9 ph\u1eadn cong queo c\u1ea3 ng\u00e0y.<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t \u0111\u1ee9a tr\u1ebb v\u1eadn h\u00e0nh m\u1ed9t m\u00e1y \u00e9p phanh 20 t\u1ea5n v\u1edbi m\u1ed9t l\u1ed7 khu\u00f4n qu\u00e1 ch\u1eb7t cho v\u1eadt li\u1ec7u. Khung kh\u00f4ng b\u1ecb h\u1ecfng. C\u00e1c m\u1ed1i h\u00e0n gi\u1eef v\u1eefng. B\u1ed9 ph\u1eadn ra v\u1edbi b\u00e1n k\u00ednh b\u00ean trong g\u1ee3n s\u00f3ng v\u00e0 94 \u0111\u1ed9 thay v\u00ec 90. N\u00f3 \u0111\u00e3 quay m\u1ea1nh h\u01a1n. T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec n\u00f3 l\u00e0m l\u00e0 t\u1ea3i khung g\u1ea7n t\u1edbi \u0111i\u1ec3m bi\u1ebfn d\u1ea1ng trong khi h\u00ecnh h\u1ecdc ch\u1ed1ng l\u1ea1i n\u00f3. \u0110\u00f3 l\u00e0 c\u00e1ch b\u1ea1n bi\u1ebfn thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac th\u00e0nh m\u1ea3nh v\u1ee5n trong gara m\u00e0 kh\u00f4ng bao gi\u1edd l\u00e0m g\u00e3y th\u00e9p.<\/p>\n\n\n\n Khung ch\u1ee9a n\u0103ng l\u01b0\u1ee3ng. C\u00f4ng c\u1ee5 quy\u1ebft \u0111\u1ecbnh n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 l\u00e0m g\u00ec.<\/p>\n\n\n\n N\u1ebfu b\u00e1n k\u00ednh m\u0169i \u0111\u1ed9t, l\u1ed7 khu\u00f4n v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u c\u1ee7a b\u1ea1n kh\u00f4ng kh\u1edbp, b\u1ea1n kh\u00f4ng \u0111ang u\u1ed1n \u2014 b\u1ea1n \u0111ang tranh c\u00e3i v\u1edbi v\u1eadt l\u00fd. V\u00e0 v\u1eadt l\u00fd kh\u00f4ng th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n V\u00ec v\u1eady, tr\u01b0\u1edbc khi b\u1ea1n \u00e1m \u1ea3nh v\u1ec1 m\u1ed9t ph\u1ea7n t\u01b0 inch \u0111\u1ed9 d\u00e0y t\u01b0\u1eddng kh\u00e1c, ch\u00fang ta s\u1ebd n\u00f3i v\u1ec1 n\u01a1i m\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ef1c s\u1ef1 t\u1ed3n t\u1ea1i.<\/p>\n\n\n\n H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3.<\/p>\n\n\n\n L\u1ea5y th\u00e9p m\u1ec1m 1\/8 inch. Trong u\u1ed1n kh\u00f4ng kh\u00ed \u2014 c\u00f3 ngh\u0129a l\u00e0 m\u0169i \u0111\u1ed9t \u00e9p t\u1ea5m v\u00e0o m\u1ed9t khu\u00f4n V nh\u01b0ng kh\u00f4ng ch\u1ea1m \u0111\u00e1y \u2014 m\u1ed9t quy t\u1eafc ph\u1ed5 bi\u1ebfn l\u00e0 l\u1ed7 khu\u00f4n kho\u1ea3ng 8 l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. V\u00ec v\u1eady, 1\/8 inch nh\u00e2n v\u1edbi 8 cho b\u1ea1n m\u1ed9t l\u1ed7 V 1 inch. H\u00ecnh h\u1ecdc \u0111\u00f3 t\u1ea1o ra m\u1ed9t b\u00e1n k\u00ednh b\u00ean trong d\u1ef1 \u0111o\u00e1n kho\u1ea3ng 0.16 inch v\u00e0 gi\u1eef t\u1ea3i tr\u1ecdng h\u1ee3p l\u00fd.<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y si\u1ebft ch\u1eb7t khu\u00f4n \u0111\u00f3 xu\u1ed1ng 1\/2 inch v\u00ec b\u1ea1n \u201cmu\u1ed1n m\u1ed9t g\u00f3c s\u1eafc n\u00e9t h\u01a1n.\u201d<\/p>\n\n\n\n Chuy\u1ec7n g\u00ec \u0111ang x\u1ea3y ra?<\/p>\n\n\n\n Nhu c\u1ea7u v\u1ec1 tr\u1ecdng t\u1ea3i g\u1ea7n nh\u01b0 g\u1ea5p \u0111\u00f4i. \u0110\u00f4i khi c\u00f2n h\u01a1n th\u1ebf. V\u1eadt li\u1ec7u b\u1ecb \u00e9p s\u00e2u h\u01a1n tr\u01b0\u1edbc khi n\u00f3 c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean, v\u00e0 b\u1ea1n b\u1eaft \u0111\u1ea7u tr\u00f4i v\u1ec1 ph\u00eda \u0111\u00e1y \u2014 n\u01a1i t\u1ea5m ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a khu\u00f4n. Vi\u1ec7c \u0111\u00e1y c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u1ed9 h\u1ed3i l\u1ea1i, ch\u1eafc ch\u1eafn. Nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u l\u1ef1c g\u1ea5p ba \u0111\u1ebfn n\u0103m l\u1ea7n so v\u1edbi u\u1ed1n kh\u00f4ng kh\u00ed. Tr\u00ean m\u1ed9t khung DIY \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1eef \u0111\u1ed9 \u0111\u00e0n h\u1ed3i \u1edf 18 t\u1ea5n, nhu c\u1ea7u th\u00eam n\u00e0y kh\u00f4ng t\u1ef1 nhi\u00ean bi\u1ebfn m\u1ea5t. N\u00f3 chuy\u1ec3n v\u00e0o \u0111\u1ed9 bi\u1ebfn d\u1ea1ng.<\/p>\n\n\n\n Nh\u01b0ng n\u1ebfu khung b\u1ecb u\u1ed1n, n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 s\u1ebd \u0111i \u0111\u00e2u \u0111\u00f3 tr\u01b0\u1edbc ti\u00ean: v\u00e0o vi\u1ec7c u\u1ed1n c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n nh\u01b0 m\u1ed9t c\u00e2y cung.<\/p>\n\n\n\n V\u00e0 khi khung b\u1ecb cong, m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111inh v\u00e0 khu\u00f4n c\u1ee7a b\u1ea1n thay \u0111\u1ed5i gi\u1eefa ch\u1eebng. Khe h\u1edf c\u1ee7a khu\u00f4n th\u1ef1c s\u1ef1 m\u1edf r\u1ed9ng d\u01b0\u1edbi t\u1ea3i. G\u00f3c m\u00e0 b\u1ea1n ngh\u0129 m\u00ecnh \u0111ang ki\u1ec3m so\u00e1t thay \u0111\u1ed5i m\u1ed9t c\u00e1ch \u0111\u1ed9ng. B\u1ea1n kh\u00f4ng c\u00f3 m\u1ed9t g\u00f3c 90 s\u1eafc n\u00e9t. B\u1ea1n c\u00f3 m\u1ed9t g\u00f3c kho\u1ea3ng 90 m\u00e0 thay \u0111\u1ed5i theo \u00e1p l\u1ef1c h\u00e0nh tr\u00ecnh.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao t\u1ef7 l\u1ec7 \u0111inh v\u00e0 khu\u00f4n l\u00e0 ch\u00ednh x\u00e1c. Kh\u00f4ng ph\u1ea3i l\u00e0 x\u1ebfp h\u1ea1ng c\u1ee7a k\u00edch.<\/p>\n\n\n\n U\u1ed1n kh\u00f4ng kh\u00ed v\u1edbi chi\u1ec1u r\u1ed9ng V \u0111\u00fang cho b\u1ea1n l\u1ef1c th\u1ea5p h\u01a1n, b\u00e1n k\u00ednh b\u00ean trong c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 thay \u0111\u1ed5i g\u00f3c l\u1eb7p l\u1ea1i theo m\u1ed7i ph\u1ea7n ngh\u00ecn c\u1ee7a h\u00e0nh tr\u00ecnh. Coining \u2014 nghi\u1ec1n n\u00e1t v\u1eadt li\u1ec7u v\u00e0o khu\u00f4n \u2014 g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf \u0111\u1ed9 h\u1ed3i l\u1ea1i, nh\u01b0ng \u0111\u1ec9nh tr\u1ecdng t\u1ea3i th\u00ec kh\u1eafc nghi\u1ec7t. Trong m\u1ed9t m\u00e1y u\u1ed1n t\u1ef1 ch\u1ebf, vi\u1ec7c theo \u0111u\u1ed5i \u0111\u1ed9 h\u1ed3i l\u1ea1i b\u1eb1ng s\u1ee9c m\u1ea1nh th\u00f4 l\u00e0 c\u00e1ch b\u1ea1n ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n c\u1ee7a m\u1ecdi m\u1ed1i h\u00e0n m\u00e0 b\u1ea1n v\u1eeba t\u00ednh to\u00e1n.<\/p>\n\n\n\n B\u1ea1n kh\u00f4ng mua \u0111\u1ed9 ch\u00ednh x\u00e1c b\u1eb1ng \u00e1p l\u1ef1c. B\u1ea1n thi\u1ebft k\u1ebf n\u00f3 b\u1eb1ng h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: khe h\u1edf c\u1ee7a khu\u00f4n c\u1ee7a b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u2014 hay b\u1ea1n \u0111\u00e3 ch\u1ecdn n\u00f3 ch\u1ec9 v\u00ec n\u00f3 \u201ctr\u00f4ng c\u00f3 v\u1ebb \u0111\u00fang\u201d tr\u00ean b\u00e0n?<\/p>\n\n\n\n T\u00f4i t\u1eebng u\u1ed1n b\u1ed1n m\u00e9p c\u1ee7a m\u1ed9t c\u00e1i khay \u0111\u01a1n gi\u1ea3n. M\u1ed7i l\u1ea7n u\u1ed1n l\u1ec7ch ch\u1ec9 2 \u0111\u1ed9. Nghe c\u00f3 v\u1ebb kh\u00f4ng nhi\u1ec1u. \u0110\u1ebfn khi c\u1ea1nh th\u1ee9 t\u01b0 xu\u1ea5t hi\u1ec7n, c\u00e1c g\u00f3c l\u1ec7ch g\u1ea7n m\u1ed9t ph\u1ea7n t\u01b0 inch. L\u1ed7i t\u00edch l\u0169y v\u00ec m\u1ed7i l\u1ea7n u\u1ed1n thay \u0111\u1ed5i tham chi\u1ebfu cho l\u1ea7n ti\u1ebfp theo.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 s\u1ef1 t\u00edch l\u0169y.<\/p>\n\n\n\n Trong m\u1ed9t m\u00e1y u\u1ed1n th\u1ee7 c\u00f4ng, \u0111i\u1ec3m d\u1eebng 90 \u0111\u1ed9 c\u1ee7a b\u1ea1n th\u01b0\u1eddng l\u00e0 m\u1ed9t \u0111i\u1ec3m d\u1eebng v\u1eadt l\u00fd \u2014 m\u1ed9t v\u00f2ng tr\u00ean k\u00edch, m\u1ed9t tab h\u00e0n, m\u1ed9t con \u1ed1c gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh. \u0110\u1ed9ng th\u00e1i c\u1ee7a ng\u01b0\u1eddi m\u1edbi l\u00e0 thi\u1ebft l\u1eadp \u0111i\u1ec3m d\u1eebng \u0111\u00f3 d\u1ef1a tr\u00ean v\u1ecb tr\u00ed c\u1ee7a ram khi g\u00f3c \u201ctr\u00f4ng \u0111\u00fang\u201d m\u1ed9t l\u1ea7n.<\/p>\n\n\n\n Nh\u01b0ng trong u\u1ed1n kh\u00f4ng kh\u00ed, g\u00f3c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp c\u1ee7a \u0111inh v\u00e0o khu\u00f4n. M\u1ed9t v\u00e0i ph\u1ea7n ngh\u00ecn inch thay \u0111\u1ed5i trong \u0111\u1ed9 s\u00e2u c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i g\u00f3c m\u1ed9t \u0111\u1ed9 ho\u1eb7c h\u01a1n, t\u00f9y thu\u1ed9c v\u00e0o chi\u1ec1u r\u1ed9ng khu\u00f4n. N\u1ebfu khung c\u1ee7a b\u1ea1n b\u1ecb bi\u1ebfn d\u1ea1ng 0.010 inch d\u01b0\u1edbi t\u1ea3i, \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 th\u1ea9m m\u1ef9. \u0110\u00f3 l\u00e0 l\u1ed7i g\u00f3c.<\/p>\n\n\n\n V\u1eady \u0111\u00e2y l\u00e0 c\u00e1ch b\u1ea1n l\u00e0m \u0111i\u1ec1u \u0111\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ecdc CNC:<\/p>\n\n\n\n Sau \u0111\u00f3 l\u1eb7p l\u1ea1i l\u1ea7n u\u1ed1n ba l\u1ea7n.<\/p>\n\n\n\n N\u1ebfu c\u00e1c g\u00f3c c\u1ee7a b\u1ea1n thay \u0111\u1ed5i h\u01a1n n\u1eeda \u0111\u1ed9 gi\u1eefa c\u00e1c chu k\u1ef3, v\u1ea5n \u0111\u1ec1 c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec3m d\u1eebng. \u0110\u00f3 l\u00e0 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a khung, s\u1ef1 c\u0103n ch\u1ec9nh c\u1ee7a ram, ho\u1eb7c v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t.<\/p>\n\n\n\n L\u1eafng nghe t\u00f4i k\u1ef9: \u0111\u1eebng bao gi\u1edd thi\u1ebft l\u1eadp \u0111i\u1ec3m d\u1eebng c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch \u201cb\u01a1m cho \u0111\u1ebfn khi n\u00f3 tr\u00f4ng \u0111\u00fang\u201d trong khi m\u1eb7t b\u1ea1n \u1edf tr\u00ean c\u00f4ng vi\u1ec7c. N\u1ebfu c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 tr\u01b0\u1ee3t \u1edf t\u1ea3i tr\u1ecdng \u0111\u1ea7y \u0111\u1ee7, c\u00e1i \u0111inh \u0111\u00f3 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt th\u1ec3 bay nhanh h\u01a1n b\u1ea1n c\u00f3 th\u1ec3 ch\u1edbp m\u1eaft.<\/p>\n\n\n\n M\u1ed9t thi\u1ebft l\u1eadp \u0111\u00e1ng tin c\u1eady 90 trong m\u1ed9t c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng l\u00e0 v\u1ec1 vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u d\u01b0\u1edbi t\u1ea3i tr\u1ecdng \u1ed5n \u0111\u1ecbnh \u2014 \u0111i\u1ec1u n\u00e0y ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng n\u1ebfu khung c\u1ee7a b\u1ea1n v\u1eabn n\u1eb1m trong ph\u1ea1m vi \u0111\u00e0n h\u1ed3i m\u00e0 b\u1ea1n \u0111\u00e3 thi\u1ebft k\u1ebf. H\u00ecnh h\u1ecdc v\u00e0 \u0111\u1ed9 c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau. Kh\u00f4ng ph\u1ea3i l\u00e0 \u0111o\u00e1n m\u00f2 v\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a c\u00e1nh tay.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: b\u1ea1n c\u00f3 th\u1ec3 m\u00f4 t\u1ea3 ch\u00ednh x\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd n\u00e0o gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh c\u1ee7a ram \u2014 v\u00e0 n\u00f3 c\u00f3 ph\u1ea3i l\u00e0 \u1ed5 bi tr\u00ean th\u00e9p r\u1eafn, hay ch\u1ec9 l\u00e0 c\u00e1c ren trong t\u00ecnh tr\u1ea1ng c\u0103ng?<\/p>\n\n\n\n B\u1ea1n u\u1ed1n th\u00e9p m\u1ec1m 1\/8 inch \u0111\u1ebfn m\u1ee9c \u0111\u1ecdc \u0111\u01b0\u1ee3c 88 \u0111\u1ed9 d\u01b0\u1edbi \u00e1p l\u1ef1c. B\u1ea1n th\u1ea3 ra. N\u00f3 m\u1edf ra 92.<\/p>\n\n\n\n S\u1ef1 thay \u0111\u1ed5i 4 \u0111\u1ed9 \u0111\u00f3 l\u00e0 \u0111\u1ed9 h\u1ed3i ph\u1ee5c \u2014 s\u1ef1 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i khi c\u00e1c \u1ee9ng su\u1ea5t b\u00ean trong ph\u00e2n b\u1ed1 l\u1ea1i khi t\u1ea3i tr\u1ecdng \u0111\u01b0\u1ee3c g\u1ee1 b\u1ecf.<\/p>\n\n\n\n T\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra?<\/p>\n\n\n\n B\u1edfi v\u00ec trong qu\u00e1 tr\u00ecnh u\u1ed1n, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i c\u1ee7a t\u1ea5m \u0111i v\u00e0o t\u00ecnh tr\u1ea1ng c\u0103ng, c\u00f2n b\u00ean trong th\u00ec b\u1ecb n\u00e9n. Khi b\u1ea1n th\u1ea3 khu\u00f4n, ph\u1ea7n \u0111\u00e0n h\u1ed3i c\u1ee7a \u1ee9ng su\u1ea5t \u0111\u00f3 ph\u1ee5c h\u1ed3i. B\u00e1n k\u00ednh b\u00ean trong c\u00e0ng ch\u1eb7t so v\u1edbi \u0111\u1ed9 d\u00e0y, th\u00ec \u0111\u1ed9 bi\u1ebfn d\u1ea1ng d\u1ebbo c\u00e0ng cao v\u00e0 \u0111\u1ed9 h\u1ed3i ph\u1ee5c c\u00e0ng \u00edt. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c d\u1eadp g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf n\u00f3. N\u00f3 \u00e1p \u0111\u1ea3o \u0111\u1ed9 \u0111\u00e0n h\u1ed3i b\u1eb1ng bi\u1ebfn d\u1ea1ng d\u1ebbo.<\/p>\n\n\n\n Nh\u01b0ng ch\u00fang ta kh\u00f4ng \u0111ang d\u1eadp. Ch\u00fang ta \u0111ang ch\u1ee9a n\u0103ng l\u01b0\u1ee3ng, kh\u00f4ng ph\u1ea3i l\u00e0m t\u0103ng n\u00f3.<\/p>\n\n\n\n V\u00ec v\u1eady b\u1ea1n b\u00f9 tr\u1eeb.<\/p>\n\n\n\n U\u1ed1n qu\u00e1 90 \u0111\u1ebfn c\u00f3 th\u1ec3 86 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng, th\u1ea3 ra, \u0111o. N\u1ebfu n\u00f3 d\u1eebng l\u1ea1i \u1edf 90.5, \u0111i\u1ec1u ch\u1ec9nh. Ti\u1ebfn g\u1ea7n \u0111\u1ebfn n\u00f3. Ghi ch\u00fa: lo\u1ea1i v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y, chi\u1ec1u r\u1ed9ng khu\u00f4n, \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n Sau v\u00e0i l\u1ea7n ch\u1ea1y, b\u1ea1n s\u1ebd bi\u1ebft r\u1eb1ng khu\u00f4n V 1 inch c\u1ee7a b\u1ea1n v\u1edbi th\u00e9p A36 1\/8 inch c\u1ea7n kho\u1ea3ng 2 \u0111\u1ebfn 3 \u0111\u1ed9 u\u1ed1n qu\u00e1. Chuy\u1ec3n sang th\u00e9p kh\u00f4ng g\u1ec9? Con s\u1ed1 \u0111\u00f3 t\u0103ng l\u00ean. L\u00f4 th\u00e9p kh\u00e1c? N\u00f3 l\u1ea1i thay \u0111\u1ed5i.<\/p>\n\n\n\n B\u1ea1n \u0111ang x\u00e2y d\u1ef1ng b\u1ea3ng c\u1ee7a ri\u00eang b\u1ea1n th\u00f4ng qua s\u1ef1 l\u1eb7p l\u1ea1i c\u00f3 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n B\u00e2y gi\u1edd v\u1ec1 \u201cm\u1eb9o kh\u00f4ng h\u1ed3i ph\u1ee5c\u201d m\u00e0 t\u00f4i \u0111\u00e3 th\u1ea5y \u2014 c\u1eaft m\u1ed9t r\u00e3nh n\u00f4ng d\u1ecdc theo \u0111\u01b0\u1eddng u\u1ed1n tr\u01b0\u1edbc khi t\u1ea1o h\u00ecnh. \u0110\u00fang, vi\u1ec7c lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u l\u00e0m gi\u1ea3m s\u1ee9c c\u1ea3n v\u00e0 c\u00f3 th\u1ec3 g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf \u0111\u1ed9 h\u1ed3i ph\u1ee5c. N\u00f3 c\u0169ng l\u00e0m m\u1ecfng ph\u1ea7n ngay n\u01a1i b\u1ea1n c\u1ea7n s\u1ee9c m\u1ea1nh. \u0110\u1ed1i v\u1edbi c\u00e1c gi\u00e1 \u0111\u1ee1 mang t\u1ea3i, r\u00e3nh \u0111\u00f3 tr\u1edf th\u00e0nh \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u cho s\u1ef1 n\u1ee9t.<\/p>\n\n\n\n \u0110\u1ed9 ch\u00ednh x\u00e1c l\u00e0m y\u1ebfu ph\u1ea7n kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u00f3 l\u00e0 s\u1ef1 ph\u00e1 ho\u1ea1i \u0111\u01b0\u1ee3c kho\u00e1c l\u00ean v\u1ebb th\u00f4ng minh.<\/p>\n\n\n\n M\u1ed9t phanh DIY \u0111\u00e1ng tin c\u1eady ch\u1ea5p nh\u1eadn r\u1eb1ng \u0111\u1ed9 h\u1ed3i ph\u1ee5c t\u1ed3n t\u1ea1i v\u00e0 qu\u1ea3n l\u00fd n\u00f3 b\u1eb1ng h\u00ecnh h\u1ecdc v\u00e0 u\u1ed1n qu\u00e1 c\u00f3 ki\u1ec3m so\u00e1t \u2014 t\u1ea5t c\u1ea3 trong khi gi\u1eef t\u1ea3i tr\u1ecdng trong kh\u1ea3 n\u0103ng \u0111\u00e0n h\u1ed3i c\u1ee7a khung m\u00e0 b\u1ea1n \u0111\u00e3 thi\u1ebft k\u1ebf.<\/p>\n\n\n\n B\u1edfi v\u00ec m\u1ed7i \u0111\u1ed9 u\u1ed1n qu\u00e1 l\u00e0 n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong l\u00f2 xo t\u1ee9c gi\u1eadn c\u1ee7a m\u1ed9t c\u1ed7 m\u00e1y.<\/p>\n\n\n\n V\u00e0 n\u1ebfu m\u1ed9t ng\u00e0y n\u00e0o \u0111\u00f3 c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 trong \u0111\u01b0\u1eddng t\u1ea3i \u0111\u00f3 b\u1ecb g\u00e3y, n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u00f3 s\u1ebd kh\u00f4ng bi\u1ebfn m\u1ea5t m\u1ed9t c\u00e1ch l\u1ecbch s\u1ef1.<\/p>\n\n\n\n N\u00f3 s\u1ebd \u0111i \u0111\u00e2u \u0111\u00f3.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: khi b\u1ea1n u\u1ed1n qu\u00e1 \u0111\u1ec3 b\u00f9 cho \u0111\u1ed9 h\u1ed3i ph\u1ee5c, b\u1ea1n c\u00f3 bi\u1ebft th\u00eam bao nhi\u00eau t\u1ea3i tr\u1ecdng m\u00e0 \u0111i\u1ec1u \u0111\u00f3 th\u00eam v\u00e0o khung c\u1ee7a b\u1ea1n \u2014 hay b\u1ea1n ch\u1ec9 \u0111ang d\u1ef1a v\u00e0o c\u1ea7n g\u1ea1t v\u00e0 hy v\u1ecdng?<\/p>\n\n\n\n B\u1ea1n \u0111\u00e3 h\u1ecfi c\u00e1ch thi\u1ebft k\u1ebf khung sao cho \u0111\u1ed9 bi\u1ebfn d\u1ea1ng \u0111\u1ee7 th\u1ea5p \u0111\u1ec3 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1eb7p l\u1ea1i.<\/p>\n\n\n\n T\u1ed1t. B\u00e2y gi\u1edd ch\u00fang ta n\u00f3i v\u1ec1 nh\u1eefng g\u00ec x\u1ea3y ra khi n\u00f3 kh\u00f4ng di\u1ec5n ra nh\u01b0 v\u1eady.<\/p>\n\n\n\n Nh\u1eefng g\u00ec b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang x\u00e2y d\u1ef1ng kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 u\u1ed1n. \u0110\u00f3 l\u00e0 m\u1ed9t c\u00e1i l\u1ed3ng cho n\u0103ng l\u01b0\u1ee3ng t\u00edch tr\u1eef \u0111ang c\u1ed1 g\u1eafng tho\u00e1t ra.<\/p>\n\n\n\n Khi b\u1ea1n b\u01a1m c\u00e1i k\u00edch chai, b\u1ea1n \u0111ang n\u00e9n ch\u1ea5t l\u1ecfng th\u1ee7y l\u1ef1c, k\u00e9o d\u00e0i c\u00e1c th\u00e0nh ph\u1ea7n th\u00e9p, t\u1ea3i c\u00e1c m\u1ed1i h\u00e0n trong t\u00ecnh tr\u1ea1ng c\u0103ng, v\u00e0 \u00e9p m\u1ed9t t\u1ea5m kim lo\u1ea1i v\u00e0o bi\u1ebfn d\u1ea1ng d\u1ebbo. T\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u \u0111\u00f3 l\u00e0 n\u0103ng l\u01b0\u1ee3ng ng\u1ed3i y\u00ean \u0111\u00f3, im l\u1eb7ng, ch\u1edd \u0111\u1ee3i s\u1ef1 c\u00e2n b\u1eb1ng. N\u1ebfu \u0111\u01b0\u1eddng d\u1eabn t\u1ea3i s\u1ea1ch v\u00e0 khung v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh \u0111\u00e0n h\u1ed3i, n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng m\u1ed9t c\u00e1ch c\u00f3 ki\u1ec3m so\u00e1t khi b\u1ea1n m\u1edf van. N\u1ebfu c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 b\u1ecb g\u00e3y, l\u1ec7ch ho\u1eb7c tr\u01b0\u1ee3t, n\u0103ng l\u01b0\u1ee3ng s\u1ebd tho\u00e1t ra \u1edf n\u01a1i m\u00e0 l\u1ef1c c\u1ea3n gi\u1ea3m \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 v\u00f9ng m\u1ea3nh v\u1ee1.<\/p>\n\n\n\n T\u00f4i \u0111\u00e3 d\u1ecdn d\u1eb9p m\u1ed9t m\u00e1y u\u1ed1n b\u1ecb h\u1ecfng. Kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u00f3n \u0111\u1ed3 DIY \u2014 m\u00e0 l\u00e0 m\u1ed9t m\u00e1y trong x\u01b0\u1edfng. C\u00f4ng c\u1ee5 b\u1ecb chip, chi ti\u1ebft c\u00f4ng vi\u1ec7c b\u1eadt l\u00ean, v\u00e0 ch\u00fang t\u00f4i t\u00ecm th\u1ea5y c\u00e1c m\u1ea3nh v\u1ee1 b\u1ecb ch\u00f4n v\u00f9i trong t\u01b0\u1eddng kh\u00f4 c\u00e1ch \u0111\u00f3 m\u01b0\u1eddi feet. Kh\u00f4ng ai ch\u1ebft. \u0110\u00f3 l\u00e0 may m\u1eafn, kh\u00f4ng ph\u1ea3i thi\u1ebft k\u1ebf.<\/p>\n\n\n\n V\u00ec v\u1eady, khi t\u00f4i n\u00f3i \u201cthi\u1ebft k\u1ebf ng\u01b0\u1ee3c t\u1eeb l\u1ef1c,\u201d \u0111\u00e2y l\u00e0 \u0111i\u1ec1u t\u00f4i mu\u1ed1n n\u00f3i: b\u1ea1n t\u00ednh to\u00e1n kh\u00f4ng ch\u1ec9 xem c\u1ea7n bao nhi\u00eau t\u1ea3i \u0111\u1ec3 u\u1ed1n th\u00e9p, m\u00e0 c\u00f2n bao nhi\u00eau n\u0103ng l\u01b0\u1ee3ng t\u00edch tr\u1eef c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n ph\u1ea3i ch\u1ee9a n\u1ebfu c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 trong x\u1ebfp ch\u1ed3ng b\u1ecb h\u1ecfng.<\/p>\n\n\n\n B\u1edfi v\u00ec cu\u1ed1i c\u00f9ng th\u00ec \u0111i\u1ec1u g\u00ec \u0111\u00f3 c\u0169ng s\u1ebd x\u1ea3y ra.<\/p>\n\n\n\n B\u1ea1n ngh\u0129 r\u1eb1ng th\u00e9p c\u1ee9ng c\u00f3 ngh\u0129a l\u00e0 kh\u00f4ng th\u1ec3 ph\u00e1 h\u1ee7y.<\/p>\n\n\n\n N\u00f3 c\u00f3 ngh\u0129a l\u00e0 gi\u00f2n.<\/p>\n\n\n\n C\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng \u0111\u1ec3 ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 gi\u1eef h\u00ecnh d\u1ea1ng d\u01b0\u1edbi t\u1ea3i. Nh\u01b0ng \u0111\u1ed9 c\u1ee9ng \u0111\u00e1nh \u0111\u1ed5i \u0111\u1ed9 d\u1ebbo \u2014 kh\u1ea3 n\u0103ng k\u00e9o d\u00e0i tr\u01b0\u1edbc khi g\u00e3y. Khi b\u1ea1n v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng c\u1ee7a khu\u00f4n, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi m\u1ed9t khe V qu\u00e1 h\u1eb9p ho\u1eb7c m\u1ed9t c\u00e1i \u0111inh l\u1ec7ch, c\u0103ng th\u1eb3ng t\u1eadp trung \u1edf vai c\u1ee7a V \u0111\u00f3. Kh\u00f4ng \u0111\u1ec1u. T\u1ea1i ch\u1ed7.<\/p>\n\n\n\n V\u00e0 c\u00e1c v\u1eadt li\u1ec7u gi\u00f2n kh\u00f4ng nh\u01b0\u1eddng b\u01b0\u1edbc m\u1ed9t c\u00e1ch duy\u00ean d\u00e1ng. Ch\u00fang b\u1ecb g\u00e3y.<\/p>\n\n\n\n Kh\u00f4ng c\u00f3 u\u1ed1n ch\u1eadm. Kh\u00f4ng c\u00f3 c\u1ea3nh b\u00e1o. M\u1ed9t v\u1ebft n\u1ee9t si\u00eau nh\u1ecf tr\u1edf th\u00e0nh m\u1ed9t v\u1ebft n\u1ee9t ch\u1ea1y, v\u00e0 khu\u00f4n t\u00e1ch ra v\u1edbi n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i v\u1eabn c\u00f2n trong h\u1ec7 th\u1ed1ng. N\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 \u0111\u00e3 c\u00f3 trong khung, trong k\u00edch, trong x\u1ebfp ch\u1ed3ng c\u00f4ng c\u1ee5 b\u1ecb n\u00e9n. Khi khu\u00f4n b\u1ecb g\u00e3y, s\u1ef1 r\u00e0ng bu\u1ed9c bi\u1ebfn m\u1ea5t trong v\u00e0i mili gi\u00e2y.<\/p>\n\n\n\n H\u1ec7 th\u1ed1ng gi\u1ea3i ph\u00f3ng m\u1ed9t c\u00e1ch b\u1ea1o l\u1ef1c.<\/p>\n\n\n\n C\u00e1c m\u1ea3nh v\u1ee1 \u0111i theo h\u01b0\u1edbng c\u00f3 \u00edt l\u1ef1c c\u1ea3n nh\u1ea5t \u2014 th\u01b0\u1eddng l\u00e0 ngang theo \u0111\u01b0\u1eddng khu\u00f4n, \u0111\u00f4i khi l\u00e0 l\u00ean theo m\u1eb7t \u0111inh. N\u1ebfu chi ti\u1ebft c\u00f4ng vi\u1ec7c v\u1eabn c\u00f2n m\u1ed9t ph\u1ea7n tham gia, n\u00f3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t c\u1ea7n g\u1ea1t \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng s\u1ef1 gi\u1ea3i ph\u00f3ng \u0111\u00f3.<\/p>\n\n\n\n B\u00e2y gi\u1edd \u0111\u00e2y l\u00e0 ph\u1ea7n m\u00e0 nh\u1eefng ng\u01b0\u1eddi m\u1edbi th\u01b0\u1eddng b\u1ecf l\u1ee1: s\u1ef1 th\u1ea5t b\u1ea1i c\u1ee7a khu\u00f4n kh\u00f4ng ch\u1ec9 li\u00ean quan \u0111\u1ebfn t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng. V\u01b0\u1ee3t qu\u00e1 chi\u1ec1u r\u1ed9ng khu\u00f4n V th\u00edch h\u1ee3p \u2014 quy t\u1eafc \u201ct\u00e1m l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u\u201d m\u00e0 b\u1ea1n v\u1eabn nghe \u2014 v\u00e0 b\u1ea1n s\u1ebd t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u0103ng th\u1eb3ng c\u1ee5c b\u1ed9 ngay c\u1ea3 khi khung c\u1ee7a b\u1ea1n l\u00fd thuy\u1ebft c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec1u t\u1ea3i h\u01a1n. B\u1ea1n kh\u00f4ng l\u00e0m qu\u00e1 t\u1ea3i m\u00e1y. B\u1ea1n \u0111\u00e3 l\u00e0m qu\u00e1 t\u1ea3i h\u00ecnh h\u1ecdc ti\u1ebfp x\u00fac.<\/p>\n\n\n\n H\u00ecnh h\u1ecdc c\u00f4ng c\u1ee5 c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng tr\u01b0\u1edbc khi khung c\u1ee7a b\u1ea1n k\u00eau ca.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: tr\u01b0\u1edbc m\u1ed7i phi\u00ean l\u00e0m vi\u1ec7c, h\u00e3y ki\u1ec3m tra khu\u00f4n c\u1ee7a b\u1ea1n xem c\u00f3 b\u1ecb chip, v\u1ebft n\u1ee9t t\u00f3c, ho\u1eb7c c\u00e1c c\u1ea1nh b\u1ecb n\u1edf kh\u00f4ng. M\u1ed9t khu\u00f4n b\u1ecb t\u1ed5n th\u01b0\u01a1ng d\u01b0\u1edbi t\u1ea3i kh\u00f4ng ph\u1ea3i l\u00e0 \u201cc\u00f3 th\u1ec3 \u1ed5n.\u201d N\u00f3 l\u00e0 m\u1ea3nh v\u1ee1 \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e9n.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1edb ng\u1ea9n: b\u1ea1n c\u00f3 \u0111ang ch\u1ecdn chi\u1ec1u r\u1ed9ng khu\u00f4n t\u1eeb \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u2014 hay b\u1ea1n \u0111ang t\u0103ng \u00e1p su\u1ea5t cho \u0111\u1ebfn khi u\u1ed1n \u201ctr\u00f4ng \u0111\u00fang\u201d v\u00e0 \u0111\u1ed5 l\u1ed7i cho th\u00e9p?<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y n\u00f3i v\u1ec1 t\u1ea5m kim lo\u1ea1i.<\/p>\n\n\n\n Khi b\u1ea1n u\u1ed1n th\u00e9p carbon nh\u1eb9, c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i k\u00e9o d\u00e0i, b\u00ean trong n\u00e9n l\u1ea1i, v\u00e0 m\u1ed9t kh\u1edbp nh\u1ef1a h\u00ecnh th\u00e0nh t\u1ea1i \u0111\u01b0\u1eddng u\u1ed1n. Khi b\u1ea1n nh\u1ea3 \u00e1p l\u1ef1c, \u1ee9ng su\u1ea5t \u0111\u00e0n h\u1ed3i ph\u1ee5c h\u1ed3i v\u00e0 ph\u1ea7n \u0111\u00f3 b\u1eadt m\u1edf m\u1ed9t v\u00e0i \u0111\u1ed9. D\u1ec5 d\u1ef1 \u0111o\u00e1n. C\u00f3 th\u1ec3 qu\u1ea3n l\u00fd.<\/p>\n\n\n\n Cho \u0111\u1ebfn khi n\u00f3 kh\u00f4ng c\u00f2n nh\u01b0 v\u1eady.<\/p>\n\n\n\n N\u1ebfu b\u1ea1n \u0111ang u\u1ed1n v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n cao ho\u1eb7c gi\u00f2n \u1edf m\u1ed9t b\u00e1n k\u00ednh trong ch\u1eb7t, b\u1ea1n gi\u1ea3m l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng nh\u1ef1a v\u00e0 t\u0103ng ph\u1ea7n \u0111\u00e0n h\u1ed3i c\u1ee7a n\u0103ng l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong ch\u00ednh t\u1ea5m kim lo\u1ea1i. N\u1ebfu m\u1ed9t v\u1ebft n\u1ee9t xu\u1ea5t hi\u1ec7n \u1edf b\u1ec1 m\u1eb7t k\u00e9o c\u0103ng b\u00ean ngo\u00e0i trong qu\u00e1 tr\u00ecnh u\u1ed1n, v\u1ebft n\u1ee9t \u0111\u00f3 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng qua chi\u1ec1u r\u1ed9ng.<\/p>\n\n\n\n T\u1ea5m kim lo\u1ea1i ng\u1eebng h\u00e0nh x\u1eed nh\u01b0 m\u1ed9t kh\u1edbp.<\/p>\n\n\n\n N\u00f3 h\u00e0nh x\u1eed nh\u01b0 m\u1ed9t l\u00f2 xo b\u1ecb g\u00e3y.<\/p>\n\n\n\n H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t d\u1ea3i d\u00e0i b\u1eafc qua khu\u00f4n V. C\u00e1i \u0111\u1ee5c \u00e9p n\u00f3 xu\u1ed1ng. C\u00e1c \u0111\u1ea7u kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 ngo\u00e0i c\u00e1c vai khu\u00f4n. N\u1ebfu c\u00f3 s\u1ef1 g\u00e3y x\u1ea3y ra \u1edf t\u1ea3i tr\u1ecdng c\u1ef1c \u0111\u1ea1i, t\u1ea5m kim lo\u1ea1i c\u00f3 th\u1ec3 xoay quanh c\u00e1c c\u1ea1nh khu\u00f4n v\u00e0 b\u1eadt l\u00ean. H\u01b0\u1edbng \u0111i kh\u00f4ng ph\u1ea3i ng\u1eabu nhi\u00ean \u2014 n\u00f3 theo \u0111\u1ed9 cong \u0111\u00e3 l\u01b0u tr\u1eef v\u00e0 h\u00ecnh h\u1ecdc c\u1ee7a s\u1ef1 h\u1ed7 tr\u1ee3. H\u01b0\u1edbng v\u1ec1 ph\u00eda ng\u01b0\u1eddi v\u1eadn h\u00e0nh l\u00e0 ph\u1ed5 bi\u1ebfn v\u00ec \u0111\u00f3 l\u00e0 ph\u00eda m\u1edf c\u1ee7a m\u00e1y.<\/p>\n\n\n\n Nh\u01b0ng khung c\u1ee7a b\u1ea1n th\u01b0\u1eddng c\u00f3 m\u1ed9t kho\u1ea3ng c\u00e1ch kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 d\u00e0i h\u01a1n v\u1eadt li\u1ec7u l\u00e0m vi\u1ec7c v\u00e0 m\u1ed9t m\u1eb7t c\u1eaft ngang t\u1ed3i t\u1ec7 h\u01a1n \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 u\u1ed1n.<\/p>\n\n\n\n V\u00ec v\u1eady, n\u1ebfu khung u\u1ed1n cong \u0111\u00e1ng k\u1ec3, n\u00f3 s\u1ebd th\u00eam v\u00e0o n\u0103ng l\u01b0\u1ee3ng h\u1ec7 th\u1ed1ng \u0111\u00e3 l\u01b0u tr\u1eef. Khi t\u1ea5m kim lo\u1ea1i nh\u1ea3 ra, khung c\u0169ng b\u1eadt l\u1ea1i. Hai l\u00f2 xo c\u00f9ng gi\u1ea3i ph\u00f3ng.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 c\u00e1ch m\u00e0 l\u1ef1c ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao th\u1ee7y l\u1ef1c kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 an to\u00e0n. C\u00e1c m\u00e1y \u00e9p c\u01a1 kh\u00ed l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng trong b\u00e1nh \u0111\u00e0; th\u1ee7y l\u1ef1c l\u01b0u tr\u1eef n\u00f3 trong ch\u1ea5t l\u1ecfng n\u00e9n v\u00e0 th\u00e9p k\u00e9o d\u00e0i. Ph\u01b0\u01a1ng ti\u1ec7n kh\u00e1c nhau. C\u00f9ng m\u1ed9t v\u1eadt l\u00fd.<\/p>\n\n\n\n N\u1ebfu b\u1ea1n \u0111ang nghi\u00eang ng\u01b0\u1eddi qua \u0111\u01b0\u1eddng khu\u00f4n khi c\u00f3 th\u1ee9 g\u00ec \u0111\u00f3 g\u00e3y, b\u1ea1n \u0111ang \u0111\u1ee9ng tr\u01b0\u1edbc c\u1eeda tho\u00e1t hi\u1ec3m.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: khi b\u1ea1n \u0111\u1ecbnh v\u1ecb m\u1ed9t v\u1eadt li\u1ec7u l\u00e0m vi\u1ec7c d\u00e0i, b\u1ea1n c\u00f3 \u0111\u1ee9ng b\u00ean c\u1ea1nh \u0111\u01b0\u1eddng khu\u00f4n \u2014 hay \u1edf gi\u1eefa nh\u01b0 th\u1ec3 b\u1ea1n \u0111ang c\u0103n ch\u1ec9nh m\u1ed9t ph\u00e1t s\u00fang?<\/p>\n\n\n\n H\u00e3y bi\u1ebfn \u0111i\u1ec1u n\u00e0y th\u00e0nh th\u1ef1c t\u1ebf.<\/p>\n\n\n\n V\u1ebd m\u1ed9t n\u1eeda v\u00f2ng tr\u00f2n trung t\u00e2m tr\u00ean \u0111\u01b0\u1eddng khu\u00f4n v\u1edbi b\u00e1n k\u00ednh b\u1eb1ng chi\u1ec1u d\u00e0i kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 d\u00e0i nh\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n. \u0110o\u1ea1n cung \u0111\u00f3 l\u00e0 khu v\u1ef1c \u0111\u1ee9ng xa c\u1ee7a b\u1ea1n. N\u1ebfu m\u1ed9t d\u1ea3i d\u00e0i 30 inch \u0111ang b\u1eafc qua khu\u00f4n, gi\u1ea3 s\u1eed n\u00f3 c\u00f3 th\u1ec3 qu\u00e9t 30 inch trong tr\u01b0\u1eddng h\u1ee3p x\u1ea5u nh\u1ea5t. Th\u00eam m\u1ed9t kho\u1ea3ng c\u00e1ch cho s\u1ef1 ngu ng\u1ed1c c\u1ee7a ch\u00ednh b\u1ea1n.<\/p>\n\n\n\n \u0110\u1ee9ng b\u00ean ngo\u00e0i \u0111o\u1ea1n cung \u0111\u00f3.<\/p>\n\n\n\n B\u00e2y gi\u1edd l\u00e0 ba ki\u1ec3m tra tr\u01b0\u1edbc khi b\u1ea1n b\u01a1m k\u00edch.<\/p>\n\n\n\n \u0110\u1ea7u ti\u00ean: t\u00ednh li\u00ean t\u1ee5c c\u1ee7a \u0111\u01b0\u1eddng t\u1ea3i. K\u00edch ph\u1ea3i ch\u1ecbu l\u1ef1c vu\u00f4ng g\u00f3c v\u00e0o th\u00e9p r\u1eafn, chuy\u1ec3n t\u1ea3i tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c th\u00e0nh vi\u00ean th\u1eb3ng \u0111\u1ee9ng, kh\u00f4ng qua c\u00e1c ren trong u\u1ed1n ho\u1eb7c c\u00e1c tab trong c\u1eaft. N\u1ebfu ch\u00e2n ram c\u00f3 th\u1ec3 nghi\u00eang, b\u1ea1n \u0111ang gi\u1edbi thi\u1ec7u t\u1ea3i tr\u1ecdng l\u1ec7ch t\u00e2m \u2014 l\u1ef1c kh\u00f4ng trung t\u00e2m \u2014 \u0111i\u1ec1u n\u00e0y l\u00e0m t\u0103ng c\u0103ng th\u1eb3ng \u1edf m\u1ed9t c\u1ed9t v\u00e0 gi\u1ea3m n\u00f3 \u1edf c\u1ed9t kh\u00e1c. C\u0103ng th\u1eb3ng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u l\u00e0 c\u00e1ch m\u00e0 c\u00e1c khu\u00f4n b\u1ecb chip v\u00e0 khung b\u1ecb xo\u1eafn.<\/p>\n\n\n\n Th\u1ee9 hai: ki\u1ec3m tra \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a khung. Nh\u00ecn v\u00e0o th\u00e0nh vi\u00ean ngang d\u00e0i nh\u1ea5t c\u1ee7a b\u1ea1n. \u0110\u00f3 l\u00e0 thanh tr\u00ean c\u00f9ng ho\u1eb7c thanh ch\u00e9o. N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y \u00e1nh s\u00e1ng ban ng\u00e0y d\u01b0\u1edbi m\u1ed9t th\u01b0\u1edbc th\u1eb3ng khi n\u00f3 kh\u00f4ng t\u1ea3i, b\u1ea1n \u0111\u00e3 t\u1ea1o ra m\u1ed9t \u0111\u1ed9 cong. D\u01b0\u1edbi t\u1ea3i, \u0111\u1ed9 cong \u0111\u00f3 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng th\u00eam. Th\u00eam c\u00e1c g\u00f3c \u1edf c\u00e1c kh\u1edbp c\u1ed9t. T\u0103ng chi\u1ec1u s\u00e2u m\u1eb7t c\u1eaft thay v\u00ec \u0111\u1ed9 d\u00e0y khi c\u00f3 th\u1ec3; \u0111\u1ed9 c\u1ee9ng u\u1ed1n t\u0103ng m\u1ea1nh v\u1edbi chi\u1ec1u cao c\u1ee7a m\u1eb7t c\u1eaft. B\u1ea1n \u0111ang ch\u1ed1ng l\u1ea1i s\u1ef1 u\u1ed1n cong, kh\u00f4ng ch\u1ec9 l\u00e0 \u0111\u1ed9 ch\u1ea3y.<\/p>\n\n\n\n Th\u1ee9 ba: t\u00ecnh tr\u1ea1ng c\u00f4ng c\u1ee5 v\u00e0 s\u1ef1 c\u0103n ch\u1ec9nh. \u0110\u1ea7u d\u1eadp \u0111\u01b0\u1ee3c c\u0103n gi\u1eefa trong khu\u00f4n. Kh\u00f4ng c\u00f3 m\u1ea3nh v\u1ee5n trong V. Kh\u00f4ng c\u00f3 h\u01b0 h\u1ea1i c\u1ea1nh nh\u00ecn th\u1ea5y. Quy t\u1eafc 8 \u0111\u01b0\u1ee3c t\u00f4n tr\u1ecdng tr\u1eeb khi b\u1ea1n \u0111\u00e3 ch\u1ea1y s\u1ed1 li\u1ec7u v\u00e0 bi\u1ebft l\u00fd do t\u1ea1i sao b\u1ea1n ph\u00e1 v\u1ee1 n\u00f3.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9 l\u01b0\u1ee1ng: \u0111\u1eebng bao gi\u1edd gi\u1ea3 \u0111\u1ecbnh \u201cn\u00f3 \u0111\u00e3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c h\u00f4m qua\u201d c\u00f3 ngh\u0129a l\u00e0 h\u00f4m nay n\u00f3 an to\u00e0n. Th\u00e9p b\u1ecb m\u1ecfi. H\u00e0n b\u1ecb n\u1ee9t. Bu l\u00f4ng b\u1ecb l\u1ecfng. N\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef kh\u00f4ng quan t\u00e2m \u0111\u1ebfn s\u1ef1 l\u1ea1c quan c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n M\u1ed9t chi\u1ebfc phanh DIY \u0111\u00e1ng tin c\u1eady kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ec1 vi\u1ec7c theo \u0111u\u1ed5i kh\u1ea3 n\u0103ng u\u1ed1n t\u1ed1i \u0111a. N\u00f3 l\u00e0 v\u1ec1 vi\u1ec7c x\u00e1c \u0111\u1ecbnh m\u1ed9t gi\u1edbi h\u1ea1n m\u00e0 b\u1ea1n t\u1eeb ch\u1ed1i v\u01b0\u1ee3t qua \u2014 d\u1ef1a tr\u00ean h\u00ecnh h\u1ecdc c\u00f4ng c\u1ee5, \u0111\u1ed9 c\u1ee9ng c\u1ee7a khung v\u00e0 s\u1ef1 s\u1eb5n s\u00e0ng c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ee9ng ngo\u00e0i b\u00e1n k\u00ednh \u0111\u00f3.<\/p>\n\n\n\n B\u1edfi v\u00ec m\u1ed9t khi b\u1ea1n hi\u1ec3u khu v\u1ef1c m\u1ea3nh v\u1ee5n, c\u00e2u h\u1ecfi ti\u1ebfp theo kh\u00f4ng ph\u1ea3i l\u00e0 \u201cN\u00f3 c\u00f3 th\u1ec3 u\u1ed1n bao nhi\u00eau?\u201d<\/p>\n\n\n\n M\u00e0 l\u00e0 \u201cT\u00f4i v\u1ebd \u0111\u01b0\u1eddng gi\u1edbi h\u1ea1n \u1edf \u0111\u00e2u tr\u01b0\u1edbc khi c\u00e1i n\u00e0y ch\u1ea3y m\u00e1u?\u201d<\/p>\n\n\n\n B\u1ea1n mu\u1ed1n m\u1ed9t con s\u1ed1 c\u1ee5 th\u1ec3. Kh\u00f4ng ph\u1ea3i c\u1ea3m gi\u00e1c. Kh\u00f4ng ph\u1ea3i \u201cn\u00f3 \u0111\u00e3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c l\u1ea7n tr\u01b0\u1edbc.\u201d M\u1ed9t gi\u1edbi h\u1ea1n.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 quy t\u1eafc t\u00f4i s\u1eed d\u1ee5ng trong x\u01b0\u1edfng c\u1ee7a m\u00ecnh khi ch\u00fang t\u00f4i \u0111i\u1ec1u ch\u1ec9nh khung m\u00e1y \u00e9p cho nhi\u1ec7m v\u1ee5 phanh: n\u1ebfu t\u00ednh to\u00e1n u\u1ed1n c\u1ee7a b\u1ea1n cho bi\u1ebft b\u1ea1n c\u1ea7n 10 t\u1ea5n m\u1ed7i foot, b\u1ea1n thi\u1ebft k\u1ebf khung \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c 13, v\u00e0 b\u1ea1n v\u1eadn h\u00e0nh n\u00f3 \u1edf 9. \u0110\u00f3 l\u00e0 quy t\u1eafc 90% trong th\u00e9p \u0111\u01a1n gi\u1ea3n \u2014 \u0111\u1eebng bao gi\u1edd l\u00ean k\u1ebf ho\u1ea1ch s\u1eed d\u1ee5ng nhi\u1ec1u h\u01a1n 90% c\u1ee7a b\u1ea1n c\u00f4ng su\u1ea5t<\/em> c\u1ea5u tr\u00fac an to\u00e0n \u0111\u00e3 t\u00ednh to\u00e1n, v\u00e0 \u0111\u1eebng bao gi\u1edd thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac nh\u1ecf h\u01a1n 120\u2013130% c\u1ee7a t\u1ea3i tr\u1ecdng u\u1ed1n d\u1ef1 \u0111o\u00e1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n T\u1ea1i sao l\u1ea1i c\u00f3 kho\u1ea3ng c\u00e1ch \u0111\u00f3?<\/p>\n\n\n\n B\u1edfi v\u00ec to\u00e1n h\u1ecdc u\u1ed1n c\u1ee7a b\u1ea1n gi\u1ea3 \u0111\u1ecbnh \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u ho\u00e0n h\u1ea3o, h\u00ecnh h\u1ecdc khu\u00f4n ho\u00e0n h\u1ea3o, s\u1ef1 c\u0103n ch\u1ec9nh ho\u00e0n h\u1ea3o. Th\u00e9p th\u1ef1c t\u1ebf c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng. \u0110\u1ed9 d\u00e0y c\u00f3 th\u1ec3 thay \u0111\u1ed5i m\u1ed9t ph\u1ea7n m\u01b0\u1eddi milim\u00e9t v\u00e0 thay \u0111\u1ed5i \u0111\u1ed9 \u0111\u00e0n h\u1ed3i \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n b\u1ea3n n\u0103ng \u201cb\u01a1m th\u00eam m\u1ed9t ch\u00fat.\u201d M\u1ed9t ch\u00fat th\u00eam \u0111\u00f3 l\u00e0 c\u00e1ch m\u00e0 khung b\u1ecb tr\u01b0\u1ee3t t\u1eeb \u0111\u1ed9 bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i v\u00e0o n\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef m\u00e0 b\u1ea1n kh\u00f4ng t\u00ednh \u0111\u1ebfn.<\/p>\n\n\n\n C\u00e1c chuy\u00ean gia th\u01b0\u1eddng l\u00e0m qu\u00e1 k\u00edch th\u01b0\u1edbc m\u00e1y c\u1ee7a h\u1ecd th\u00eam 20\u201330% v\u00ec l\u00fd do n\u00e0y. V\u00e0 \u0111\u00f3 l\u00e0 nh\u1eefng con qu\u00e1i v\u1eadt \u0111\u01b0\u1ee3c h\u00e0n, gi\u1ea3i t\u1ecfa c\u0103ng th\u1eb3ng, c\u0103n ch\u1ec9nh CNC v\u1edbi c\u00e1c xi lanh \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 v\u00e0 b\u1ea3ng tonnage \u0111\u00e3 hi\u1ec7u ch\u1ec9nh. Khung gara c\u1ee7a b\u1ea1n, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb th\u00e9p c\u00e1n n\u00f3ng v\u00e0 hy v\u1ecdng, kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p ho\u1ea1t \u0111\u1ed9ng \u1edf r\u00eca.<\/p>\n\n\n\n N\u1ebfu b\u1ea1n th\u1ef1c s\u1ef1 c\u1ea7n 100% c\u1ee7a x\u1ebfp h\u1ea1ng c\u1ee7a k\u00edch \u0111\u1ec3 t\u1ea1o ra m\u1ed9t u\u1ed1n, khung c\u1ee7a b\u1ea1n \u0111\u00e3 \u1edf m\u1ed9t m\u1ed1i h\u00e0n x\u1ea5u kh\u1ecfi vi\u1ec7c tr\u1edf th\u00e0nh m\u1ea3nh v\u1ee5n trong gara.<\/p>\n\n\n\n V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea1n thi\u1ebft l\u1eadp gi\u1edbi h\u1ea1n c\u1ee9ng?<\/p>\n\n\n\n Jack c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t c\u00e1i b\u01a1m. Khung c\u1ee7a b\u1ea1n l\u00e0 c\u00e1i l\u1ed3ng gi\u1eef l\u00f2 xo n\u00e9n. C\u00e1i l\u1ed3ng x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n.<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y n\u00f3i v\u1ec1 \u0111i\u1ec1u \u0111\u00f3 th\u1ef1c s\u1ef1 c\u00f3 ngh\u0129a l\u00e0 g\u00ec trong c\u00e1c t\u1ea5m m\u00e0 b\u1ea1n kh\u00f4ng bao gi\u1edd n\u00ean ch\u1ea1m v\u00e0o.<\/p>\n\n\n\n \u0110\u1ed9 d\u00e0y l\u00e0 y\u1ebfu t\u1ed1 nh\u00e2n th\u1ea7m l\u1eb7ng. L\u1ef1c u\u1ed1n t\u1ef7 l\u1ec7 v\u1edbi b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a \u0111\u1ed9 d\u00e0y. G\u1ea5p \u0111\u00f4i \u0111\u1ed9 d\u00e0y, b\u1ea1n \u0111ang m\u1ea1o hi\u1ec3m v\u1edbi b\u1ed1n l\u1ea7n l\u1ef1c.<\/p>\n\n\n\n \u0110\u00f3 l\u00e0 c\u00e1ch m\u00e0 nh\u1eefng ng\u01b0\u1eddi t\u1eeb vi\u1ec7c u\u1ed1n th\u00e9p nh\u1eb9 1\/8 inch m\u1ed9t c\u00e1ch vui v\u1ebb l\u1ea1i g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng n\u1ee9t m\u1ed1i h\u00e0n tr\u00ean th\u00e9p 1\/4 inch v\u00e0 kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng jack \u201cc\u1ea3m th\u1ea5y \u1ed5n.\u201d<\/p>\n\n\n\n Jack lu\u00f4n c\u1ea3m th\u1ea5y \u1ed5n. N\u00f3 l\u00e0 th\u1ee7y l\u1ef1c. N\u00f3 kh\u00f4ng ph\u00e0n n\u00e0n khi khung c\u1ee7a b\u1ea1n h\u01a1i bi\u1ebfn d\u1ea1ng m\u1ed9t ch\u00fat.<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c ti\u1ec5n.<\/p>\n\n\n\n L\u1ea5y v\u1eadt li\u1ec7u d\u00e0y nh\u1ea5t m\u00e0 b\u1ea1n \u0111\u00e3 u\u1ed1n th\u00e0nh c\u00f4ng<\/em> m\u00e0 kh\u00f4ng c\u00f3 bi\u1ebfn d\u1ea1ng khung nh\u00ecn th\u1ea5y \u2014 v\u00e0 t\u00f4i c\u00f3 ngh\u0129a l\u00e0 \u0111o b\u1eb1ng th\u01b0\u1edbc \u0111\u1ed3ng h\u1ed3 ho\u1eb7c \u00edt nh\u1ea5t l\u00e0 th\u01b0\u1edbc \u0111o khe h\u1edf \u1edf gi\u1eefa, kh\u00f4ng ph\u1ea3i \u01b0\u1edbc l\u01b0\u1ee3ng b\u1eb1ng m\u1eaft. G\u1ecdi \u0111\u00f3 l\u00e0 c\u01a1 s\u1edf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh c\u1ee7a b\u1ea1n. B\u00e2y gi\u1edd gi\u1ea3m n\u00f3 m\u1ed9t k\u00edch th\u01b0\u1edbc d\u00e0y h\u01a1n tr\u00ean gi\u1ea5y v\u00e0 t\u00ednh to\u00e1n t\u1ea5n c\u1ea7n thi\u1ebft m\u1edbi. N\u1ebfu s\u1ed1 m\u1edbi \u0111\u00f3 \u0111\u1ea9y khung c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qu\u00e1 90% c\u1ee7a kh\u1ea3 n\u0103ng c\u1ea5u tr\u00fac, th\u00ec \u0111\u1ed9 d\u00e0y \u0111\u00f3 tr\u1edf th\u00e0nh gi\u1edbi h\u1ea1n c\u1ee9ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n Kh\u00f4ng ph\u1ea3i \u201cth\u1eed m\u1ed9t l\u1ea7n.\u201d Kh\u00f4ng ph\u1ea3i \u201cu\u1ed1n ng\u1eafn th\u00f4i.\u201d Gi\u1edbi h\u1ea1n.<\/p>\n\n\n\n U\u1ed1n ng\u1eafn \u0111\u1eb7c bi\u1ec7t d\u1ec5 g\u00e2y hi\u1ec3u l\u1ea7m. Vi\u1ec7c qu\u00e1 t\u1ea3i m\u1ed9t \u0111o\u1ea1n 4 inch t\u1eadp trung t\u1ea3i tr\u1ecdng d\u01b0\u1edbi ram v\u00e0 c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n m\u1eb7t ram ho\u1eb7c l\u00e0m cong d\u1ea7m ngang t\u1ea1i ch\u1ed7. H\u01b0 h\u1ecfng ti\u1ebfn tri\u1ec3n. H\u00f4m nay l\u00e0 m\u1ed9t ph\u1ea7n ngh\u00ecn. Th\u00e1ng sau l\u00e0 s\u1ef1 kh\u00f4ng th\u1eb3ng h\u00e0ng. T\u00f4i \u0111\u00e3 d\u1ecdn d\u1eb9p m\u1ed9t m\u00e1y u\u1ed1n b\u1ecb h\u1ecfng, v\u00e0 n\u00f3 kh\u00f4ng n\u1ed5 tung ngay l\u1eadp t\u1ee9c \u2014 n\u00f3 suy gi\u1ea3m cho \u0111\u1ebfn khi m\u1ed9t ng\u00e0y x\u1ea5u \u0111\u00e3 ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: \u0111\u1eebng bao gi\u1edd th\u1eed nghi\u1ec7m \u0111\u1ed9 d\u00e0y t\u1ed1i \u0111a m\u1edbi v\u1edbi m\u1eb7t b\u1ea1n \u1edf tr\u00ean \u0111\u01b0\u1eddng khu\u00f4n v\u00e0 c\u01a1 th\u1ec3 b\u1ea1n \u1edf gi\u1eefa tr\u01b0\u1edbc c\u00f4ng vi\u1ec7c. T\u1ea3i tr\u1ecdng l\u1ea7n \u0111\u1ea7u l\u00e0 n\u01a1i m\u00e0 nh\u1eefng gi\u1ea3 \u0111\u1ecbnh sai l\u1ea7m \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa m\u1ed9t c\u00e1ch b\u1ea1o l\u1ef1c.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch: b\u1ea1n c\u00f3 \u0111ang x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u00e0y t\u1ed1i \u0111a c\u1ee7a m\u00ecnh t\u1eeb h\u00e0nh vi khung \u0111o \u0111\u01b0\u1ee3c \u2014 hay t\u1eeb vi\u1ec7c tay c\u1ea7m jack v\u1eabn di chuy\u1ec3n \u0111\u01b0\u1ee3c bao xa?<\/p>\n\n\n\n Nh\u01b0ng n\u1ebfu ph\u1ea7n b\u1ea1n mu\u1ed1n ch\u1ec9 v\u1eeba v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n \u0111\u00f3 th\u00ec sao?<\/p>\n\n\n\n \u0110\u00e2y l\u00e0 n\u01a1i m\u00e0 nh\u1eefng nh\u00e0 ch\u1ebf t\u1ea1o tr\u01b0\u1edfng th\u00e0nh t\u00e1ch bi\u1ec7t m\u00ecnh kh\u1ecfi nh\u1eefng ng\u01b0\u1eddi ch\u1ec9 thu th\u1eadp m\u1ea3nh v\u1ee5n trong gara.<\/p>\n\n\n\n N\u1ebfu \u0111\u1ed9 u\u1ed1n b\u1ea1n c\u1ea7n \u0111\u1ea9y b\u1ea1n v\u01b0\u1ee3t qu\u00e1 90%, b\u1ea1n kh\u00f4ng \u201cg\u1eedi n\u00f3.\u201d B\u1ea1n thay \u0111\u1ed5i ph\u1ea7n \u0111\u00f3.<\/p>\n\n\n\n B\u1ea1n c\u00f3 th\u1ec3 t\u0103ng b\u00e1n k\u00ednh b\u00ean trong kh\u00f4ng? M\u1ed9t khu\u00f4n V l\u1edbn h\u01a1n gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ea5n c\u1ea7n thi\u1ebft. B\u1ea1n c\u00f3 th\u1ec3 chia thi\u1ebft k\u1ebf th\u00e0nh hai m\u1ea3nh m\u1ecfng h\u01a1n v\u00e0 h\u00e0n l\u1ea1i kh\u00f4ng? Th\u00eam m\u1ed9t m\u00e9p thay v\u00ec u\u1ed1n m\u1ed9t k\u00eanh s\u00e2u t\u1eeb t\u1ea5m d\u00e0y? Thay \u0111\u1ed5i lo\u1ea1i v\u1eadt li\u1ec7u th\u00e0nh th\u1ee9 g\u00ec \u0111\u00f3 d\u1ec5 u\u1ed1n h\u01a1n?<\/p>\n\n\n\n M\u1ed7i t\u00f9y ch\u1ecdn \u0111\u00f3 gi\u1ea3m n\u0103ng l\u01b0\u1ee3ng t\u00edch tr\u1eef trong h\u1ec7 th\u1ed1ng. \u0110\u00f3 m\u1edbi l\u00e0 ch\u1ec9 s\u1ed1 th\u1ef1c s\u1ef1. Kh\u00f4ng ph\u1ea3i t\u1ef1 h\u00e0o.<\/p>\n\n\n\n Nh\u1edb nh\u1eefng g\u00ec ch\u00fang ta \u0111\u00e3 n\u00f3i tr\u01b0\u1edbc \u0111\u00e2y: Nh\u01b0ng n\u1ebfu khung b\u1ecb u\u1ed1n, th\u00ec n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 s\u1ebd \u0111i \u0111\u00e2u \u0111\u00f3 tr\u01b0\u1edbc ti\u00ean: v\u00e0o vi\u1ec7c u\u1ed1n cong c\u1ea5u tr\u00fac c\u1ee7a b\u1ea1n nh\u01b0 m\u1ed9t c\u00e2y cung. V\u00e0 khi b\u1ea1n th\u1ea3 \u00e1p l\u1ef1c, c\u00e2y cung \u0111\u00f3 mu\u1ed1n th\u1eb3ng l\u1ea1i. Nh\u01b0ng khung c\u1ee7a b\u1ea1n th\u01b0\u1eddng c\u00f3 m\u1ed9t kho\u1ea3ng kh\u00f4ng h\u1ed7 tr\u1ee3 d\u00e0i h\u01a1n so v\u1edbi chi ti\u1ebft c\u00f4ng vi\u1ec7c v\u00e0 m\u1ed9t m\u1eb7t c\u1eaft ngang t\u1ed3i t\u1ec7 h\u01a1n \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 u\u1ed1n cong. V\u00ec v\u1eady, n\u00f3 l\u01b0u tr\u1eef nhi\u1ec1u h\u01a1n b\u1ea1n ngh\u0129.<\/p>\n\n\n\n Thi\u1ebft k\u1ebf l\u1ea1i ph\u1ea7n kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 y\u1ebfu \u0111u\u1ed1i. \u0110\u00f3 l\u00e0 vi\u1ec7c ch\u1ecdn n\u01a1i m\u00e0 c\u0103ng th\u1eb3ng t\u1ed3n t\u1ea1i.<\/p>\n\n\n\n N\u1ebfu c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 t\u1ea1o ra s\u1ef1 u\u1ed1n cong l\u00e0 ph\u1ea3i ch\u1ea1y b\u01a1m \u0111\u1ebfn \u0111i\u1ec3m d\u1eebng v\u00e0 r\u00ean r\u1ec9 n\u1eeda \u0111\u1ed9 cu\u1ed1i c\u00f9ng v\u00e0o v\u1ecb tr\u00ed, b\u1ea1n kh\u00f4ng c\u00f2n t\u1ea1o h\u00ecnh kim lo\u1ea1i n\u1eefa. B\u1ea1n \u0111ang \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o m\u1ed1i h\u00e0n c\u1ee7a m\u00ecnh ch\u1ed1ng l\u1ea1i v\u1eadt l\u00fd.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1edb ng\u1ea9n: b\u1ea1n \u0111ang c\u1ed1 g\u1eafng ch\u1ee9ng minh m\u00e1y c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3 \u2014 hay r\u1eb1ng thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n c\u00f3 l\u00fd?<\/p>\n\n\n\n V\u00e0 \u0111\u00f4i khi c\u00e2u tr\u1ea3 l\u1eddi trung th\u1ef1c l\u00e0 kh\u00f4ng c\u00e1i n\u00e0o. \u0110\u00f4i khi b\u01b0\u1edbc \u0111i th\u00f4ng minh l\u00e0 kh\u00f4ng ch\u1ea1y n\u00f3 ch\u00fat n\u00e0o.<\/p>\n\n\n\n H\u00e3y \u0111\u1ec3 c\u00e1i t\u00f4i sang m\u1ed9t b\u00ean trong m\u1ed9t gi\u00e2y.<\/p>\n\n\n\n N\u1ebfu c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c g\u00f3c li\u00ean t\u1ee5c ch\u1eb7t h\u01a1n m\u1ed9t \u0111\u1ed9 tr\u00ean nhi\u1ec1u ph\u1ea7n, phanh th\u1ee7 c\u00f4ng c\u1ee7a b\u1ea1n \u0111\u00e3 n\u1eb1m ngo\u00e0i v\u00f9ng tho\u1ea3i m\u00e1i c\u1ee7a n\u00f3. C\u00e1c m\u00e1y c\u00f4ng nghi\u1ec7p \u0111\u1ea1t \u0111\u01b0\u1ee3c trung b\u00ecnh n\u1eeda \u0111\u1ed9 v\u00ec ch\u00fang ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 b\u00f9 \u0111\u1eafp cho s\u1ef1 bi\u1ebfn \u0111\u1ed5i v\u1eadt li\u1ec7u. B\u1ea1n \u0111ang b\u01a1m m\u1ed9t b\u01a1m v\u00e0 \u0111\u1ecdc \u0111\u1ed9 h\u1ed3i l\u1ea1i b\u1eb1ng m\u1eaft.<\/p>\n\n\n\n B\u00e2y gi\u1edd h\u00e3y x\u1ebfp ch\u1ed3ng r\u1ee7i ro l\u00ean tr\u00ean \u0111\u00f3.<\/p>\n\n\n\n N\u1ebfu t\u1ea3i u\u1ed1n m\u00e0 b\u1ea1n t\u00ednh to\u00e1n \u2014 v\u1edbi bi\u00ean \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i \u2014 v\u01b0\u1ee3t qu\u00e1 nh\u1eefng g\u00ec khung c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecbu \u1edf 90%, v\u00e0 vi\u1ec7c thi\u1ebft k\u1ebf l\u1ea1i l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng c\u1ee7a ph\u1ea7n, th\u00ec to\u00e1n h\u1ecdc s\u1ebd thay \u0111\u1ed5i. Chi ph\u00ed c\u1ee7a m\u1ed9t khung b\u1ecb h\u1ecfng, m\u1ed9t khu\u00f4n b\u1ecb chip, ho\u1eb7c m\u1ed9t chuy\u1ebfn \u0111i \u0111\u1ebfn ph\u00f2ng c\u1ea5p c\u1ee9u s\u1ebd l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi m\u1ee9c gi\u00e1 c\u1ee7a c\u1eeda h\u00e0ng cho m\u1ed9t v\u00e0i l\u1ea7n u\u1ed1n.<\/p>\n\n\n\n \u0110i\u1ec1u n\u00e0y kh\u00f4ng ph\u1ea3i v\u1ec1 kh\u1ea3 n\u0103ng. N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n M\u1ed9t m\u00e1y phanh l\u00e0 m\u1ed9t c\u00e1i l\u1ed3ng gi\u1eef m\u1ed9t l\u00f2 xo n\u00e9n, t\u1ee9c gi\u1eadn. C\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n v\u1edbi t\u01b0 c\u00e1ch l\u00e0 ng\u01b0\u1eddi x\u00e2y d\u1ef1ng kh\u00f4ng ph\u1ea3i l\u00e0 xem b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m cho n\u00f3 t\u1ee9c gi\u1eadn \u0111\u1ebfn m\u1ee9c n\u00e0o. \u0110\u00f3 l\u00e0 quy\u1ebft \u0111\u1ecbnh xem c\u00e1i l\u1ed3ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 gi\u1eef bao nhi\u00eau c\u01a1n gi\u1eadn m\u1ed9t c\u00e1ch an to\u00e0n \u2014 v\u00e0 d\u1eebng l\u1ea1i \u1edf \u0111\u00f3.<\/p>\n\n\n\n H\u00e3y l\u1eafng nghe t\u00f4i k\u1ef9: kh\u00f4ng c\u00f3 m\u00e1y phanh t\u1ef1 ch\u1ebf n\u00e0o \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 c\u00f4ng nghi\u1ec7p. B\u1ea1n kh\u00f4ng c\u00f3 r\u00e8m \u00e1nh s\u00e1ng. B\u1ea1n kh\u00f4ng c\u00f3 \u0111i\u1ec1u khi\u1ec3n ch\u1ed1ng bu\u1ed9c hai tay. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 bi\u00ean \u0111\u1ed9 an to\u00e0n c\u1ee7a b\u1ea1n ph\u1ea3i l\u00e0 c\u1ea5u tr\u00fac v\u00e0 h\u00e0nh vi, kh\u00f4ng ph\u1ea3i \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 g\u00f3c nh\u00ecn m\u00e0 t\u00f4i mu\u1ed1n b\u1ea1n mang theo.<\/p>\n\n\n\n C\u00f4ng su\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u00e1nh gi\u00e1 c\u1ee7a b\u01a1m. C\u00f4ng su\u1ea5t l\u00e0 t\u1ea3i cao nh\u1ea5t m\u00e0 khung c\u1ee7a b\u1ea1n v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c s\u1ef1 nh\u00e0m ch\u00e1n.<\/p>\n\n\n\n Kh\u00f4ng c\u00f3 ti\u1ebfng \u1ed3n m\u1edbi. Kh\u00f4ng c\u00f3 s\u1ef1 ph\u00e1t tri\u1ec3n \u0111\u1ed9 u\u1ed1n r\u00f5 r\u00e0ng. Kh\u00f4ng c\u00f3 \u201cch\u1eafc c\u00f3 l\u1ebd \u1ed5n th\u00f4i.\u201d<\/p>\n\n\n\n Khi m\u00e1y c\u1ee7a b\u1ea1n \u0111ang nh\u00e0m ch\u00e1n \u1edf 90%, b\u1ea1n \u0111ang \u1edf b\u00ean trong c\u00e1i l\u1ed3ng. Khi b\u1ea1n theo \u0111u\u1ed5i 100%, b\u1ea1n \u0111ang cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho l\u00f2 xo v\u00e0 hy v\u1ecdng c\u00e1c thanh gi\u1eef \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n Ki\u1ec3m tra ng\u1edb ng\u1ea9n: b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1y c\u00f3 th\u1ec3 s\u1ed1ng s\u00f3t tr\u01b0\u1edbc tham v\u1ecdng c\u1ee7a b\u1ea1n \u2014 hay m\u1ed9t c\u00e1i ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 ki\u1ec1m ch\u1ebf c\u1ee7a b\u1ea1n trong m\u1ed7i l\u1ea7n k\u00e9o?<\/p>","protected":false},"excerpt":{"rendered":" I\u2019ve swept up a press brake that failed. Not the sheet metal. The brake. Twenty-ton bottle jack still pumped solid, handle proud in the air, while the top beam peeled upward like a sardine can and the side plates split at the welds. Nobody hurt. Pure luck. The builder kept saying, \u201cBut it\u2019s a 20-ton […]<\/p>\n","protected":false},"author":1,"featured_media":845,"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-844","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\/844","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/comments?post=844"}],"version-history":[{"count":2,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/844\/revisions"}],"predecessor-version":[{"id":1096,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/844\/revisions\/1096"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media\/845"}],"wp:attachment":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media?parent=844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/categories?post=844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/tags?post=844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"T\u1ea1i](\"https:\/\/cn-hawe.com\/wp-content\/uploads\/2026\/02\/Why-the-frame-bows-before-the-sheet-metal-even-starts-to-yield_w1200.jpg\")
<\/figure>\n\n\n\nSai l\u1ea7m \u201c\u0111\u1ed1ng ph\u1ebf li\u1ec7u\u201d: Khi t\u00e1i ch\u1ebf th\u00e9p c\u0169 tr\u1edf th\u00e0nh m\u1ed1i nguy hi\u1ec3m c\u1ea5u tr\u00fac<\/h3>\n\n\n\n
![\"Sai](\"https:\/\/cn-hawe.com\/wp-content\/uploads\/2026\/02\/The-scrap-pile-mistake-When-repurposing-old-steel-becomes-a-structural-hazard_w1200.jpg\")
<\/figure>\n\n\n\nTo\u00e1n h\u1ecdc Tonnage m\u00e0 kh\u00f4ng ai l\u00e0m cho \u0111\u1ebfn khi c\u00f3 th\u1ee9 g\u00ec \u0111\u00f3 g\u00e3y<\/h2>\n\n\n\n
Th\u1ef1c s\u1ef1 c\u1ea7n bao nhi\u00eau l\u1ef1c \u0111\u1ec3 u\u1ed1n th\u00e9p 1\/8\u2033?<\/h3>\n\n\n\n
S\u1ef1 u\u1ed1n cong c\u1ee7a khung so v\u1edbi s\u1ef1 h\u1ecfng khung: T\u1ea1i sao \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f9ng m\u1ed9t v\u1ea5n \u0111\u1ec1<\/h3>\n\n\n\n
Ph\u1ea7n k\u1ebft th\u00fac<\/th> N\u1ed9i dung<\/th><\/tr><\/thead> Ti\u00eau \u0111\u1ec1<\/td> S\u1ef1 u\u1ed1n cong c\u1ee7a khung so v\u1edbi s\u1ef1 h\u1ecfng khung: T\u1ea1i sao \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f9ng m\u1ed9t v\u1ea5n \u0111\u1ec1<\/td><\/tr> Tuy\u00ean b\u1ed1 M\u1edf \u0111\u1ea7u<\/td> T\u00f4i \u0111\u00e3 d\u1ecdn d\u1eb9p m\u1ed9t m\u00e1y b\u1ebb kim lo\u1ea1i b\u1ecb h\u1ecfng. Nh\u01b0ng h\u1ea7u h\u1ebft ch\u00fang kh\u00f4ng n\u1ed5 tr\u01b0\u1edbc. Ch\u00fang l\u1eeba b\u1ea1n.<\/td><\/tr> Gi\u1edbi h\u1ea1n Phanh C\u00f4ng nghi\u1ec7p<\/td> Tr\u00ean c\u00e1c m\u00e1y phanh c\u00f4ng nghi\u1ec7p l\u1edbn \u2014 m\u00e1y 150 t\u1ea5n \u2014 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t h\u1ea1n ch\u1ebf c\u00f4ng su\u1ea5t t\u1ed1i \u0111a tr\u00ean to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t, th\u01b0\u1eddng gi\u1edbi h\u1ea1n \u1edf kho\u1ea3ng 25 t\u1ea5n m\u1ed7i foot, ngay c\u1ea3 khi h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c c\u00f3 th\u1ec3 \u0111\u1ea9y nhi\u1ec1u h\u01a1n. \u0110i\u1ec1u n\u00e0y nh\u1eb1m ki\u1ec3m so\u00e1t \u0111\u1ed9 cong.<\/td><\/tr> \u0110\u1ed9 Cong L\u00e0 G\u00ec?<\/td> \u0110\u1ed9 cong l\u00e0 s\u1ef1 u\u1ed1n d\u1ebbo (t\u1ea1m th\u1eddi). Khung b\u1ecb cong nh\u1eb9, g\u00e2y ra s\u1ef1 bi\u1ebfn \u0111\u1ed5i g\u00f3c \u2014 c\u00f3 th\u1ec3 \u00b11.5 \u0111\u1ed9 tr\u00ean chi\u1ec1u d\u00e0i.<\/td><\/tr> T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng<\/td> N\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng nghe c\u00f3 v\u1ebb nghi\u00eam tr\u1ecdng, nh\u01b0ng n\u00f3 l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn l\u00e2u tr\u01b0\u1edbc khi n\u00f3 l\u00e0m n\u1ee9t th\u00e9p.<\/td><\/tr> C\u01a1 Ch\u1ebf U\u1ed1n<\/td> Khi thanh tr\u00ean b\u1ecb cong, m\u0169i v\u00e0 khu\u00f4n m\u1ea5t \u0111i t\u00ednh song song. T\u1ea3i tr\u1ecdng t\u1eadp trung \u1edf gi\u1eefa. Ph\u1ea7n gi\u1eefa u\u1ed1n nhi\u1ec1u h\u01a1n; c\u00e1c \u0111\u1ea7u ch\u1eadm l\u1ea1i. B\u1ea1n b\u01a1m qu\u00e1 m\u1ee9c \u0111\u1ec3 s\u1eeda c\u00e1c \u0111\u1ea7u, l\u00e0m u\u1ed1n qu\u00e1 m\u1ee9c ph\u1ea7n gi\u1eefa.<\/td><\/tr> V\u1ea5n \u0110\u1ec1 Ph\u00e1t Sinh<\/td> B\u1ea1n b\u00f9 \u0111\u1eafp b\u1eb1ng m\u1eaft, v\u00e0 b\u00e2y gi\u1edd m\u1ed7i b\u1ed9 ph\u1eadn \u0111\u1ec1u h\u01a1i kh\u00e1c nhau. \u0110\u00f3 l\u00e0 \u0111\u1ed9 u\u1ed1n.<\/td><\/tr> Th\u1ea5t B\u1ea1i L\u00e0 G\u00ec?<\/td> Th\u1ea5t b\u1ea1i x\u1ea3y ra khi \u1ee9ng su\u1ea5t v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n ch\u1ea3y \u2014 m\u1ed1i h\u00e0n b\u1ecb r\u00e1ch, m\u00e9p b\u1ecb cong, t\u1ea5m b\u1ecb n\u1ee9t. Thi\u1ec7t h\u1ea1i n\u00e0y l\u00e0 v\u0129nh vi\u1ec5n v\u00e0 nguy hi\u1ec3m.<\/td><\/tr> \u0110\u1ed9 U\u1ed1n so v\u1edbi Th\u1ea5t B\u1ea1i<\/td> S\u1ef1 u\u1ed1n cong l\u00e0 m\u1ed9t c\u1ea3nh b\u00e1o. S\u1ef1 h\u1ecfng l\u00e0 h\u1eadu qu\u1ea3 c\u1ee7a vi\u1ec7c ph\u1edbt l\u1edd n\u00f3.<\/td><\/tr> R\u1ee7i Ro Khung T\u1ef1 L\u00e0m<\/td> Khung t\u1ef1 l\u00e0m th\u01b0\u1eddng c\u00f3 b\u1ec1 m\u1eb7t ng\u1eafn h\u01a1n nh\u01b0ng thanh m\u1ecfng h\u01a1n t\u1ef7 l\u1ec7 so v\u1edbi c\u00e1c m\u00e1y c\u00f4ng nghi\u1ec7p, d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a k\u00edch.<\/td><\/tr> \u00dd Ngh\u0129a Th\u1ef1c Ti\u1ec5n<\/td> Ngay c\u1ea3 khi m\u1ed9t k\u00edch \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 20 t\u1ea5n, khung c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ecbu \u0111\u1ef1ng 8\u201310 t\u1ea5n m\u1ed7i foot tr\u01b0\u1edbc khi \u0111\u1ed9 cong tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/td><\/tr> Nh\u1eefng G\u00ec B\u1ea1n M\u1ea5t \u0110\u1ea7u Ti\u00ean<\/td> B\u1ea1n kh\u00f4ng m\u1ea5t m\u00e1y ngay l\u1eadp t\u1ee9c \u2014 b\u1ea1n m\u1ea5t \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u01b0\u1edbc ti\u00ean.<\/td><\/tr> Ki\u1ec3m tra ng\u1ed1c ngh\u1ebfch<\/td> B\u1ea1n c\u00f3 \u0111ang thi\u1ebft k\u1ebf ch\u1ec9 \u0111\u1ec3 tr\u00e1nh th\u1ea5t b\u1ea1i th\u1ea3m kh\u1ed1c, hay b\u1ea1n \u0111\u00e3 t\u00ednh to\u00e1n xem khung c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng bao nhi\u00eau \u0111\u1ed9 l\u1ec7ch tr\u01b0\u1edbc khi c\u00e1c \u0111\u01b0\u1eddng cong c\u1ee7a b\u1ea1n b\u1ecb cong v\u00eanh?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Chi\u1ec1u r\u1ed9ng so v\u1edbi \u0111\u1ed9 d\u00e0y: S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng th\u1ef1c s\u1ef1 c\u1ee7a m\u00e1y c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n
Thi\u1ebft k\u1ebf t\u1eeb L\u1ef1c Ng\u01b0\u1ee3c l\u1ea1i: M\u1ed9t B\u1ea3n thi\u1ebft k\u1ebf An to\u00e0n trong Gara<\/h2>\n\n\n\n
Th\u00edch \u1ee9ng m\u1ed9t m\u00e1y \u00e9p 20 t\u1ea5n so v\u1edbi h\u00e0n m\u1ed9t khung H chuy\u00ean d\u1ee5ng<\/h3>\n\n\n\n
C\u00e1i n\u00e0o kh\u1edbp n\u1ed1i ch\u1ecbu t\u1ea3i tr\u1ecdng d\u1ecdc l\u1edbn (v\u00e0 c\u00e1i n\u00e0o ch\u1ec9 gi\u1eef c\u00e1c m\u1ea3nh l\u1ea1i v\u1edbi nhau)<\/h3>\n\n\n\n
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Gi\u1eef cho ram \u1edf gi\u1eefa khi c\u00e1c m\u1ed1i h\u00e0n trong gara c\u1ee7a b\u1ea1n kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u1ed1i x\u1ee9ng<\/h3>\n\n\n\n
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\u0110\u1ed9 ch\u00ednh x\u00e1c kh\u00f4ng c\u1ea7n CNC: H\u00ecnh h\u1ecdc Punch, Die v\u00e0 Springback<\/h2>\n\n\n\n
T\u1ef7 l\u1ec7 punch v\u00e0 die: N\u01a1i m\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ef1c s\u1ef1 t\u1ed3n t\u1ea1i trong m\u1ed9t thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng<\/h3>\n\n\n\n
C\u00e1ch thi\u1ebft l\u1eadp m\u1ed9t \u0111i\u1ec3m d\u1eebng 90 \u0111\u1ed9 \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng c\u1ea7n \u0111o\u00e1n s\u1ed1 k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n
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\u0110i\u1ec1u ch\u1ec9nh b\u00f9 \u0111\u1ed9 h\u1ed3i ph\u1ee5c m\u00e0 kh\u00f4ng c\u00f3 b\u1ea3ng tham chi\u1ebfu<\/h3>\n\n\n\n
Khu v\u1ef1c Shrapnel: Qu\u1ea3n l\u00fd N\u0103ng l\u01b0\u1ee3ng L\u01b0u tr\u1eef v\u00e0 \u0110\u1ea9y l\u1ea1i<\/h2>\n\n\n\n
Th\u1ef1c s\u1ef1 th\u00ec \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi m\u1ed9t khu\u00f4n th\u00e9p c\u1ee9ng b\u1ecb v\u1ee1 d\u01b0\u1edbi \u00e1p l\u1ef1c?<\/h3>\n\n\n\n
H\u00ecnh h\u1ecdc ph\u1ea3n l\u1ef1c c\u1ee7a chi ti\u1ebft c\u00f4ng vi\u1ec7c: T\u1ea1i sao kim lo\u1ea1i t\u1ea5m l\u1ea1i di chuy\u1ec3n m\u1ea1nh m\u1ebd v\u1ec1 ph\u00eda m\u1eb7t b\u1ea1n.<\/h3>\n\n\n\n
B\u00e1n k\u00ednh \u201c\u0111\u1ee9ng xa\u201d v\u00e0 ba ki\u1ec3m tra c\u1ea5u tr\u00fac c\u1ea7n th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc m\u1ed7i phi\u00ean l\u00e0m vi\u1ec7c<\/h3>\n\n\n\n
Quy t\u1eafc 90%: Bi\u1ebft Gi\u1edbi H\u1ea1n Th\u1ef1c S\u1ef1 C\u1ee7a M\u00e1y C\u1ee7a B\u1ea1n<\/h2>\n\n\n\n
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Gi\u1edbi h\u1ea1n \u0111\u1ed9 d\u00e0y: Nh\u1eefng g\u00ec m\u00e0 m\u00e1y u\u1ed1n t\u1ef1 ch\u1ebf c\u1ee7a b\u1ea1n kh\u00f4ng bao gi\u1edd n\u00ean ch\u1ea1m v\u00e0o<\/h3>\n\n\n\n
Khi n\u00e0o th\u00ec vi\u1ec7c thi\u1ebft k\u1ebf l\u1ea1i ph\u1ea7n \u0111\u00f3 c\u00f3 \u00fd ngh\u0129a h\u01a1n l\u00e0 \u00e9p bu\u1ed9c u\u1ed1n?<\/h3>\n\n\n\n
T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0o th\u00ec th\u1ef1c s\u1ef1 r\u1ebb h\u01a1n v\u00e0 an to\u00e0n h\u01a1n \u0111\u1ec3 ch\u1ec9 tr\u1ea3 ti\u1ec1n cho m\u1ed9t c\u1eeda h\u00e0ng gia c\u00f4ng \u0111\u1ecba ph\u01b0\u01a1ng?<\/h3>\n\n\n\n