{"id":5650,"date":"2025-12-23T03:18:22","date_gmt":"2025-12-23T03:18:22","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5650"},"modified":"2025-12-23T03:18:22","modified_gmt":"2025-12-23T03:18:22","slug":"gb-t-3103-1-2002-fastener-tolerances-bolts-screws-studs-nuts","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3103-1-2002-fastener-tolerances-bolts-screws-studs-nuts\/","title":{"rendered":"Ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 Dung sai cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt: Bu l\u00f4ng, v\u00edt, \u0111inh t\u00e1n, \u0111ai \u1ed1c"},"content":{"rendered":"
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Gi\u1edbi thi\u1ec7u v\u1ec1 GB\/T 3103.1-2002<\/h2>\n

Ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 quy \u0111\u1ecbnh dung sai cho c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p, bao g\u1ed3m bu l\u00f4ng, \u1ed1c v\u00edt, \u0111inh t\u00e1n v\u00e0 \u0111ai \u1ed1c, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n trong s\u1ea3n xu\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng tr\u00ean nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. Ti\u00eau chu\u1ea9n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c ng\u00e0nh k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed, \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 x\u00e2y d\u1ef1ng, n\u01a1i \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0 t\u1ed1i quan tr\u1ecdng. N\u00f3 ph\u00e2n lo\u1ea1i s\u1ea3n ph\u1ea9m th\u00e0nh c\u00e1c c\u1ea5p A, B v\u00e0 C d\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 dung sai, trong \u0111\u00f3 A l\u00e0 ch\u1eb7t nh\u1ea5t v\u00e0 C l\u00e0 l\u1ecfng nh\u1ea5t, cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u1ef1a ch\u1ecdn \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng.<\/p>\n

T\u00e0i li\u1ec7u n\u00e0y n\u00eau r\u00f5 c\u00e1c dung sai v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh h\u1ecdc, cung c\u1ea5p h\u01b0\u1edbng d\u1eabn cho ren ngo\u00e0i v\u00e0 ren trong, c\u00e1c b\u1ed9 ph\u1eadn si\u1ebft ch\u1eb7t, chi\u1ec1u cao \u0111\u1ea7u bu l\u00f4ng, v\u00e0 nhi\u1ec1u h\u01a1n n\u1eefa. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y, c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau v\u00e0 \u0111\u1ed9 tin c\u1eady v\u1ec1 hi\u1ec7u su\u1ea5t. Ti\u00eau chu\u1ea9n n\u00e0y tham chi\u1ebfu c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nh\u01b0 GB\/T 5276 v\u1ec1 m\u00e3 k\u00edch th\u01b0\u1edbc v\u00e0 GB\/T 1182 v\u1ec1 nguy\u00ean t\u1eafc dung sai h\u00ecnh h\u1ecdc.<\/p>\n

Hi\u1ec3u r\u00f5 c\u00e1c dung sai n\u00e0y gi\u00fap ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng, gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 l\u1eafp r\u00e1p v\u00e0 n\u00e2ng cao tu\u1ed5i th\u1ecd s\u1ea3n ph\u1ea9m. V\u00ed d\u1ee5, dung sai k\u00edch th\u01b0\u1edbc \u0111\u1ea3m b\u1ea3o bu l\u00f4ng kh\u1edbp v\u1edbi \u0111ai \u1ed1c m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 r\u01a1 ho\u1eb7c c\u1ea3n tr\u1edf qu\u00e1 m\u1ee9c, trong khi dung sai h\u00ecnh h\u1ecdc ki\u1ec3m so\u00e1t h\u00ecnh d\u1ea1ng, h\u01b0\u1edbng v\u00e0 v\u1ecb tr\u00ed \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 sai l\u1ec7ch. Ti\u00eau chu\u1ea9n n\u00e0y c\u0169ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee5 th\u1ec3 nh\u01b0 v\u00e1t c\u1ea1nh, r\u00e3nh c\u1eaft v\u00e0 m\u1eb7t ch\u1ecbu l\u1ef1c, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e2n b\u1ed1 t\u1ea3i tr\u1ecdng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7.<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng gia c\u00f4ng ch\u00ednh x\u00e1c, t\u1ea1o h\u00ecnh ngu\u1ed9i ho\u1eb7c r\u00e8n n\u00f3ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c dung sai n\u00e0y, v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra bao g\u1ed3m th\u01b0\u1edbc \u0111o, th\u01b0\u1edbc \u0111o micromet v\u00e0 m\u00e1y \u0111o t\u1ecda \u0111\u1ed9. Sai l\u1ec7ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c l\u1ed7i nh\u01b0 bong ren ho\u1eb7c n\u1ee9t do m\u1ecfi. Ph\u1ea7n gi\u1edbi thi\u1ec7u n\u00e0y \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho c\u00e1c ph\u1ea7n chi ti\u1ebft v\u1ec1 t\u1eebng lo\u1ea1i \u1ed1c v\u00edt.<\/p>\n

Ph\u1ea1m vi \u00e1p d\u1ee5ng bao g\u1ed3m c\u00e1c lo\u1ea1i \u1ed1c v\u00edt h\u1ec7 m\u00e9t, tr\u1eeb c\u00e1c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t tr\u1eeb khi \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m. Ti\u00eau chu\u1ea9n n\u00e0y t\u00edch h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n m\u1ea1 \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh dung sai sau khi m\u1ea1. C\u00e1c k\u1ef9 s\u01b0 ph\u1ea3i xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 rung, c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi dung sai ch\u1eb7t ch\u1ebd h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n.<\/p>\n

C\u00e1c l\u1ee3i \u00edch ch\u00ednh bao g\u1ed3m s\u1ea3n xu\u1ea5t ti\u00eau chu\u1ea9n h\u00f3a, hi\u1ec7u qu\u1ea3 chi ph\u00ed trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch to\u00e0n c\u1ea7u v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n ISO t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. B\u1ed1i c\u1ea3nh l\u1ecbch s\u1eed: B\u1ea3n s\u1eeda \u0111\u1ed5i n\u0103m 2002 n\u00e0y \u0111\u00e3 c\u1eadp nh\u1eadt c\u00e1c phi\u00ean b\u1ea3n tr\u01b0\u1edbc \u0111\u00f3 \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi th\u00f4ng l\u1ec7 qu\u1ed1c t\u1ebf, n\u00e2ng cao kh\u1ea3 n\u0103ng c\u1ea1nh tranh c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t \u1ed1c v\u00edt c\u1ee7a Trung Qu\u1ed1c.<\/p>\n

\u0110\u1ec3 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3, ng\u01b0\u1eddi d\u00f9ng n\u00ean \u0111\u1ed1i chi\u1ebfu v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u (v\u00ed d\u1ee5: GB\/T 699 cho th\u00e9p) v\u00e0 c\u1ea5p \u0111\u1ed9 b\u1ec1n (v\u00ed d\u1ee5: 8.8 cho bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao). C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m t\u1eeb l\u1eafp r\u00e1p m\u00e1y m\u00f3c \u0111\u1ebfn b\u1eaft v\u00edt k\u1ebft c\u1ea5u trong c\u1ea7u.<\/p>\n

Ti\u00eau chu\u1ea9n n\u00e0y th\u00fac \u0111\u1ea9y an to\u00e0n b\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u r\u1ee7i ro do l\u1eafp r\u00e1p kh\u00f4ng \u0111\u00fang c\u00e1ch. Vi\u1ec7c \u0111\u00e0o t\u1ea1o v\u1ec1 dung sai l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 thanh tra. C\u00e1c b\u1ea3n c\u1eadp nh\u1eadt trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 t\u00edch h\u1ee3p c\u00e1c c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn nh\u01b0 quy tr\u00ecnh in 3D.<\/p>\n

    \n
  • Ph\u00e2n lo\u1ea1i s\u1ea3n ph\u1ea9m: A (ch\u00ednh x\u00e1c), B (trung b\u00ecnh), C (th\u00f4).<\/li>\n
  • T\u00e0i li\u1ec7u tham kh\u1ea3o: GB\/T 5276, GB\/T 1182, GB\/T 16671.<\/li>\n
  • \u1ee8ng d\u1ee5ng: Bu l\u00f4ng, \u1ed1c v\u00edt, \u0111inh t\u00e1n, \u0111ai \u1ed1c.<\/li>\n<\/ul>\n

    Nh\u00ecn chung, ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 l\u00e0 n\u1ec1n t\u1ea3ng cho vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u1ed1c v\u00edt, quy \u0111\u1ecbnh chi ti\u1ebft c\u00e1c dung sai nh\u1eb1m c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t.<\/p>\n<\/section>\n

    \n

    Dung sai cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n \u2013 Dung sai k\u00edch th\u01b0\u1edbc<\/h2>\n

    Dung sai k\u00edch th\u01b0\u1edbc cho bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n trong ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 th\u00e2n, ren v\u00e0 \u0111\u1ea7u. C\u00e1c dung sai n\u00e0y \u0111\u01b0\u1ee3c ph\u00e2n chia theo c\u1ea5p \u0111\u1ed9 s\u1ea3n ph\u1ea9m: A cho \u0111\u1ed9 ch\u00ednh x\u00e1c cao, B cho ti\u00eau chu\u1ea9n v\u00e0 C cho s\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng. Th\u00e2n v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u1ed5 bi c\u00f3 dung sai ch\u1eb7t ch\u1ebd \u1edf c\u1ea5p \u0111\u1ed9 A v\u00e0 B, trong khi c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c c\u00f3 dung sai t\u1eeb ch\u1eb7t \u0111\u1ebfn l\u1ecfng.<\/p>\n

    Dung sai ren ngo\u00e0i l\u00e0 6g cho lo\u1ea1i A v\u00e0 B, v\u00e0 8g cho lo\u1ea1i C, v\u1edbi 6g cho c\u00e1c lo\u1ea1i hi\u1ec7u su\u1ea5t 8.8 tr\u1edf l\u00ean \u1edf lo\u1ea1i C. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 kh\u1edbp n\u1ed1i ch\u00ednh x\u00e1c v\u1edbi \u0111ai \u1ed1c. K\u00edch th\u01b0\u1edbc si\u1ebft b\u1eb1ng c\u1edd l\u00ea, nh\u01b0 chi\u1ec1u r\u1ed9ng m\u1eb7t ph\u1eb3ng ngang, s\u1eed d\u1ee5ng h13\/h14 cho lo\u1ea1i A, h14\/h15\/h16\/h17 cho lo\u1ea1i B\/C t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc.<\/p>\n

    Chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng ch\u00e9o e min \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 1,13 s min \u0111\u1ed1i v\u1edbi h\u00ecnh l\u1ee5c gi\u00e1c (1,12 \u0111\u1ed1i v\u1edbi h\u00ecnh c\u00f3 g\u1edd kh\u00f4ng c\u1eaft g\u1ecdt). Chi\u1ec1u cao \u0111\u1ea7u k s\u1eed d\u1ee5ng js14 cho A, js15 cho B, js16\/js17 cho C. Chi\u1ec1u cao v\u1eb7n kw min l\u00e0 0,7 k min, v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n c\u1ee5 th\u1ec3.<\/p>\n

    C\u00e1c lo\u1ea1i c\u1edd l\u00ea b\u00ean trong nh\u01b0 \u0111\u1ea7u tu\u00fdp l\u1ee5c gi\u00e1c quy \u0111\u1ecbnh e min = 1,14 s min cho A, v\u1edbi dung sai nh\u01b0 EF8 \u0111\u1ebfn D12 cho s. Chi\u1ec1u r\u1ed9ng r\u00e3nh n s\u1eed d\u1ee5ng C13\/C14 cho A. \u0110\u1ed9 s\u00e2u t \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh t\u1ed1i thi\u1ec3u cho A, b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi \u0111\u1ed9 d\u00e0y th\u00e0nh.<\/p>\n

    C\u00e1c r\u00e3nh ch\u1eef th\u1eadp tu\u00e2n theo ti\u00eau chu\u1ea9n GB\/T 944.1 ngo\u1ea1i tr\u1eeb \u0111\u1ed9 s\u00e2u xuy\u00ean th\u1ea5u. C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m gi\u1ed1ng Torx theo ti\u00eau chu\u1ea9n GB\/T 6188. \u0110\u01b0\u1eddng k\u00ednh \u0111\u1ea7u v\u00edt: h13 cho lo\u1ea1i c\u00f3 kh\u00eda, h14 cho c\u00e1c lo\u1ea1i kh\u00e1c, v\u1edbi c\u00e1c \u0111i\u1ec1u khi\u1ec3n k\u1ebft h\u1ee3p cho lo\u1ea1i ch\u00ecm.<\/p>\n

    Chi\u1ec1u cao \u0111\u1ea7u kh\u00f4ng ph\u1ea3i h\u00ecnh l\u1ee5c gi\u00e1c: h13\/h14 cho A, kh\u00f4ng x\u00e1c \u0111\u1ecbnh cho B\/C. \u0110\u01b0\u1eddng k\u00ednh m\u1eb7t \u1ed5 \u0111\u1ee1 dw v\u00e0 chi\u1ec1u cao v\u00e1t m\u00e9p c c\u00f3 gi\u00e1 tr\u1ecb t\u1ed1i thi\u1ec3u\/t\u1ed1i \u0111a theo k\u00edch th\u01b0\u1edbc ren, v\u00ed d\u1ee5: c t\u1ed1i thi\u1ec3u 0,1-0,3 mm.<\/p>\n

    \u0110\u01b0\u1eddng k\u00ednh th\u00e2n kh\u00f4ng ren ds: h15 cho A, h14 cho B, \u00b1IT15 cho C. Chi\u1ec1u d\u00e0i danh ngh\u0129a l: js15 cho A, js17 cho B, js17\/\u00b1IT17 cho C. Chi\u1ec1u d\u00e0i ren b: c\u00e1c b\u01b0\u1edbc t\u0103ng c\u1ee5 th\u1ec3 nh\u01b0 +2P\/-P cho bu l\u00f4ng A\/B.<\/p>\n

    \n\n\n\n\n\n\n
    Ph\u1ea7n<\/th>\nC\u1ea5p \u0111\u1ed9 s\u1ea3n ph\u1ea9m<\/th>\n<\/tr>\n
    M\u1ed8T<\/th>\nB<\/th>\nC<\/th>\n<\/tr>\n
    Tr\u1ee5c v\u00e0 \u1ed5 tr\u1ee5c<\/td>\nCh\u1eb7t<\/td>\nCh\u1eb7t<\/td>\nL\u1ecfng l\u1ebbo<\/td>\n<\/tr>\n
    C\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c<\/td>\nCh\u1eb7t<\/td>\nL\u1ecfng l\u1ebbo<\/td>\nL\u1ecfng l\u1ebbo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n\n\n\n\n
    C\u1ea5p \u0111\u1ed9 s\u1ea3n ph\u1ea9m<\/th>\nM\u1ed8T<\/th>\nB<\/th>\nC<\/th>\n<\/tr>\n
    S\u1ee9c ch\u1ecbu \u0111\u1ef1ng<\/td>\n6g<\/td>\n6g<\/td>\n8g1<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    1. \u0110\u1ed1i v\u1edbi c\u1ea5p \u0111\u1ed9 hi\u1ec7u su\u1ea5t 8.8 tr\u1edf l\u00ean, dung sai ren l\u00e0 6g. (M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 quy \u0111\u1ecbnh c\u00e1c c\u1ea5p \u0111\u1ed9 dung sai ren kh\u00e1c trong c\u00e1c ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m v\u00e0 l\u1edbp ph\u1ee7 li\u00ean quan.)<\/div>\n

    C\u00e1c dung sai n\u00e0y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c l\u1eafp r\u00e1p \u0111\u00e1ng tin c\u1eady, ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 k\u1eb9t ho\u1eb7c l\u1eafp r\u00e1p l\u1ecfng l\u1ebbo. Trong m\u00f4i tr\u01b0\u1eddng rung \u0111\u1ed9ng cao, \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n gi\u00fap gi\u1ea3m nguy c\u01a1 m\u1ecfi v\u1eadt li\u1ec7u. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t hi\u1ec7u chu\u1ea9n d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, v\u00e0 vi\u1ec7c ki\u1ec3m tra \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n.<\/p>\n

      \n
    1. Ch\u1ecdn c\u1ea5p \u0111\u1ed9 d\u1ef1a tr\u00ean t\u1ea3i tr\u1ecdng c\u1ee7a \u1ee9ng d\u1ee5ng.<\/li>\n
    2. Ki\u1ec3m tra dung sai sau khi m\u1ea1.<\/li>\n
    3. H\u00e3y s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 \u0111o ren ph\u00f9 h\u1ee3p.<\/li>\n<\/ol>\n

      Vi\u1ec7c t\u00edch h\u1ee3p v\u1edbi ph\u1ea7n m\u1ec1m thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 ph\u00e2n t\u00edch s\u1ef1 t\u00edch l\u0169y dung sai, t\u1ed1i \u01b0u h\u00f3a c\u00e1c c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n<\/section>\n

      \n

      Dung sai cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n \u2013 Dung sai h\u00ecnh h\u1ecdc<\/h2>\n

      Dung sai h\u00ecnh h\u1ecdc ki\u1ec3m so\u00e1t h\u00ecnh d\u1ea1ng, h\u01b0\u1edbng, v\u1ecb tr\u00ed v\u00e0 \u0111\u1ed9 l\u1ec7ch t\u00e2m c\u1ee7a bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n theo ti\u00eau chu\u1ea9n GB\/T 1182 v\u00e0 GB\/T 16671. Ch\u00fang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng m\u00e0 kh\u00f4ng c\u1ea7n quy tr\u00ecnh \u0111\u1eb7c bi\u1ec7t, s\u1eed d\u1ee5ng t\u1ed1i \u0111a l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft. Tr\u1ee5c ren \u0111\u00f3ng vai tr\u00f2 l\u00e0 m\u1ed1c chu\u1ea9n, v\u1edbi MD l\u00e0 tr\u1ee5c \u0111\u01b0\u1eddng k\u00ednh l\u1edbn.<\/p>\n

      Dung sai v\u1ecb tr\u00ed chi ti\u1ebft si\u1ebft bu l\u00f4ng: 2IT13 cho A trong h\u1ea7u h\u1ebft c\u00e1c h\u00ecnh v\u1ebd, thay \u0111\u1ed5i t\u00f9y theo c\u1ea5p \u0111\u1ed9 v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m nh\u01b0 h\u00ecnh l\u1ee5c gi\u00e1c ho\u1eb7c r\u00e3nh. C\u00e1c m\u1ed1c chu\u1ea9n n\u1eb1m g\u1ea7n \u0111\u1ea7u, kh\u00f4ng bao g\u1ed3m c\u00e1c \u0111i\u1ec3m chuy\u1ec3n ti\u1ebfp.<\/p>\n

      C\u00e1c v\u1ecb tr\u00ed v\u00e0 \u0111\u1ed9 l\u1ec7ch kh\u00e1c: 2IT13 cho A \u1edf ph\u1ea7n \u0111\u1ea7u, IT13 cho ph\u1ea7n \u0111u\u00f4i. \u0110\u1ed9 th\u1eb3ng: 0,002l + 0,05 mm cho d\u22648 mm \u1edf A\/B, g\u1ea5p \u0111\u00f4i cho C.<\/p>\n

      T\u1ed5ng gi\u00e1 tr\u1ecb \u0111\u1ed9 l\u1ec7ch t\u00e2m \u0111\u01b0\u1ee3c l\u1eadp b\u1ea3ng theo k\u00edch th\u01b0\u1edbc ren, v\u00ed d\u1ee5: 0,04 mm cho ren 1,6-2 mm \u1edf lo\u1ea1i A\/B. \u0110\u1ed9 l\u1ec7ch m\u1eb7t ti\u1ebfp x\u00fac: 0,005d cho t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i.<\/p>\n

      Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 th\u1eb3ng h\u00e0ng, gi\u1ea3m s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t. V\u00ed d\u1ee5, \u0111\u1ed9 th\u1eb3ng k\u00e9m g\u00e2y ra t\u1ea3i tr\u1ecdng u\u1ed1n, d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng.<\/p>\n

      \n\n\n\n\n\n\n\n
      B\u1ed9 ph\u1eadn s\u1ea3n ph\u1ea9m<\/th>\nH\u00ecnh A<\/th>\nH\u00ecnh B<\/th>\nH\u00ecnh C<\/th>\nH\u00ecnh D<\/th>\nH\u00ecnh E<\/th>\nH\u00ecnh F<\/th>\nH\u00ecnh G<\/th>\nH\u00ecnh H<\/th>\nH\u00ecnh I<\/th>\nH\u00ecnh J<\/th>\nH\u00ecnh K<\/th>\nH\u00ecnh L<\/th>\n<\/tr>\n
      Dung sai t<\/td>\nM\u1ed8T<\/td>\n2IT13<\/td>\n2IT12<\/td>\n2IT13<\/td>\n<\/tr>\n
      B<\/td>\n2IT14<\/td>\n<\/td>\n2IT13<\/td>\n<\/td>\n<\/tr>\n
      C<\/td>\n2IT15<\/td>\n<\/td>\n2IT14<\/td>\n<\/td>\n<\/tr>\n
      K\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n cho t<\/td>\nS<\/td>\nd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

      Vi\u1ec7c ki\u1ec3m tra s\u1eed d\u1ee5ng m\u00e1y \u0111o t\u1ecda \u0111\u1ed9 (CMM) ho\u1eb7c c\u00e1c d\u1ee5ng c\u1ee5 \u0111o ch\u1ee9c n\u0103ng. C\u00e1c \u1ee9ng d\u1ee5ng trong m\u00e1y m\u00f3c ch\u00ednh x\u00e1c \u0111\u00f2i h\u1ecfi c\u1ea5p \u0111\u1ed9 A \u0111\u1ec3 c\u00f3 \u0111\u1ed9 r\u01a1 t\u1ed1i thi\u1ec3u.<\/p>\n

        \n
      • Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111i\u1ec3m chu\u1ea9n r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o.<\/li>\n
      • \u0110\u1ed9 l\u1ec7ch t\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng l\u00e0m k\u00edn c\u1ee7a c\u00e1c m\u1ed1i n\u1ed1i ren.<\/li>\n
      • \u0110\u1ed9 th\u1eb3ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c bu l\u00f4ng d\u00e0i trong \u0111\u1ed9ng c\u01a1.<\/li>\n<\/ul>\n

        Ki\u1ec3m so\u00e1t h\u00ecnh h\u1ecdc b\u1ed5 sung cho ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng to\u00e0n di\u1ec7n. Sai l\u1ec7ch \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn truy\u1ec1n m\u00f4-men xo\u1eafn v\u00e0 tu\u1ed5i th\u1ecd m\u1ecfi.<\/p>\n<\/section>\n

        \n

        Dung sai cho \u0111ai \u1ed1c \u2013 Dung sai k\u00edch th\u01b0\u1edbc<\/h2>\n

        Dung sai k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111ai \u1ed1c trong ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 bao g\u1ed3m ren trong, si\u1ebft ch\u1eb7t, chi\u1ec1u cao v\u00e0 b\u1ec1 m\u1eb7t. C\u00e1c c\u1ea5p A\/B\/C c\u00f3 m\u1ee9c \u0111\u1ed9 si\u1ebft ch\u1eb7t\/l\u1ecfng kh\u00e1c nhau cho \u1ed5 tr\u1ee5c\/c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c.<\/p>\n

        Ren trong: 6H cho A\/B, 7H cho C. \u0110\u01b0\u1eddng k\u00ednh ren nh\u1ecf \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf c\u00e1c chi\u1ec1u cao c\u1ee5 th\u1ec3. K\u00edch th\u01b0\u1edbc ren: h13\/h14 cho A, h14-h17 cho B\/C t\u00f9y theo k\u00edch th\u01b0\u1edbc. \u0110\u01b0\u1eddng k\u00ednh ren ch\u00e9o t\u1ed1i thi\u1ec3u \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/p>\n

        Chi\u1ec1u cao m: h14-h16 cho A\/B g\u1ea7n D, h17 cho C. Chi\u1ec1u cao si\u1ebft \u1ed1c mw: c\u00f4ng th\u1ee9c nh\u01b0 0,65 m t\u1ed1i \u0111a cho c\u00e1c lo\u1ea1i \u1ed1c m\u1ecfng.<\/p>\n

        \u0110\u1ed9 l\u1ec7ch t\u00e2m \u1ed5 tr\u1ee5c t\u1ed1i thi\u1ec3u: s t\u1ed1i thi\u1ec3u \u2013 IT16 ho\u1eb7c 0,95 s t\u1ed1i thi\u1ec3u. V\u00e1t m\u00e9p c: t\u1ed1i thi\u1ec3u\/t\u1ed1i \u0111a theo ren. \u0110\u1ed9 l\u1ec7ch t\u00e2m l\u1edbn t\u1ed1i \u0111a: 1,15D \u0111\u1ebfn 1,08D cho A\/B.<\/p>\n

        C\u00e1c lo\u1ea1i \u0111ai \u1ed1c \u0111\u1eb7c bi\u1ec7t c\u00f3 dung sai \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho de, m, n, w.<\/p>\n

        \n\n\n\n\n\n\n
        Ph\u1ea7n<\/th>\nC\u1ea5p \u0111\u1ed9 s\u1ea3n ph\u1ea9m<\/th>\n<\/tr>\n
        M\u1ed8T<\/th>\nB<\/th>\nC<\/th>\n<\/tr>\n
        M\u1eb7t \u1ed5 tr\u1ee5c<\/td>\nCh\u1eb7t<\/td>\nCh\u1eb7t<\/td>\nL\u1ecfng l\u1ebbo<\/td>\n<\/tr>\n
        C\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c<\/td>\nCh\u1eb7t<\/td>\nL\u1ecfng l\u1ebbo<\/td>\nL\u1ecfng l\u1ebbo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

        Nh\u1eefng chi ti\u1ebft n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111ai \u1ed1c ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng. \u0110\u1ed1i v\u1edbi \u0111ai \u1ed1c kh\u00f3a, dung sai gi\u00fap duy tr\u00ec m\u00f4-men xo\u1eafn hi\u1ec7n h\u00e0nh.<\/p>\n

          \n
        1. Ch\u1ecdn lo\u1ea1i \u0111ai \u1ed1c ph\u00f9 h\u1ee3p v\u1edbi bu l\u00f4ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/li>\n
        2. H\u00e3y xem x\u00e9t t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1edbp ph\u1ee7 l\u00ean s\u1ee3i ch\u1ec9.<\/li>\n
        3. S\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu rung \u0111\u1ed9ng.<\/li>\n<\/ol>\n

          Dung sai t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u, gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n<\/section>\n

          \n

          Dung sai cho \u0111ai \u1ed1c \u2013 Dung sai h\u00ecnh h\u1ecdc<\/h2>\n

          Dung sai h\u00ecnh h\u1ecdc cho \u0111ai \u1ed1c theo ti\u00eau chu\u1ea9n GB\/T 1182\/16671 s\u1eed d\u1ee5ng tr\u1ee5c \u0111\u01b0\u1eddng k\u00ednh b\u01b0\u1edbc ren l\u00e0m chu\u1ea9n, v\u1edbi y\u00eau c\u1ea7u v\u1eadt li\u1ec7u t\u1ed1i \u0111a.<\/p>\n

          Ki\u1ec3u\/v\u1ecb tr\u00ed v\u1eb7n: 2IT13 cho A trong c\u00e1c h\u00ecnh d\u1ea1ng. C\u00e1c v\u1ecb tr\u00ed kh\u00e1c: 2IT14 cho m\u1eb7t b\u00edch, v.v.<\/p>\n

          \u0110\u1ed9 l\u1ec7ch t\u00e2m t\u1ed5ng th\u1ec3: \u0110\u01b0\u1ee3c l\u1eadp b\u1ea3ng theo k\u00edch th\u01b0\u1edbc, v\u00ed d\u1ee5: 0,04 mm cho \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf D.<\/p>\n

          \n\n\n\n\n\n\n\n
          Ph\u1ea7n<\/th>\nM\u1ed8T<\/th>\nB<\/th>\nC<\/th>\nK\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n<\/th>\n<\/tr>\n
          Dung sai t<\/th>\n<\/tr>\n
          H\u00ecnh A<\/td>\n2IT13<\/td>\n2IT14<\/td>\n2IT15<\/td>\nS<\/td>\n<\/tr>\n
          H\u00ecnh B<\/td>\n2IT13<\/td>\n2IT14<\/td>\n<\/td>\nS<\/td>\n<\/tr>\n
          H\u00ecnh C<\/td>\n2IT13<\/td>\n2IT14<\/td>\n2IT15<\/td>\nS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          C\u00e1c b\u1ed9 ph\u1eadn \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 vu\u00f4ng g\u00f3c, gi\u1ea3m thi\u1ec3u t\u1ea3i tr\u1ecdng kh\u00f4ng \u0111\u1ec1u. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i \u0111ai \u1ed1c c\u00f3 momen xo\u1eafn cao.<\/p>\n

            \n
          • V\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 kh\u00edt c\u1ee7a c\u1edd l\u00ea.<\/li>\n
          • \u0110\u1ed9 l\u1ec7ch t\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ti\u1ebfp x\u00fac \u1ed5 tr\u1ee5c.<\/li>\n
          • H\u00ecnh d\u1ea1ng chu\u1ea9n gi\u00fap tr\u00e1nh b\u1ecb lung lay.<\/li>\n<\/ul>\n

            T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 tin c\u1eady trong \u0111i\u1ec1u ki\u1ec7n t\u1ea3i tr\u1ecdng \u0111\u1ed9ng.<\/p>\n<\/section>\n

            \n

            Dung sai cho v\u00edt t\u1ef1 ren<\/h2>\n

            Dung sai c\u1ee7a v\u00edt t\u1ef1 ren t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ea1o ren, v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 k\u00edch th\u01b0\u1edbc\/h\u00ecnh h\u1ecdc t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh cho ch\u1ee9c n\u0103ng t\u1ea1o ren. Ren c\u00f3 c\u00e1c bi\u00ean d\u1ea1ng c\u1ee5 th\u1ec3 \u0111\u1ec3 xuy\u00ean th\u1ea5u v\u1eadt li\u1ec7u.<\/p>\n

            K\u00edch th\u01b0\u1edbc: Ren ngo\u00e0i theo t\u1eebng c\u1ea5p, v\u1edbi ren l\u1ecfng h\u01a1n cho lo\u1ea1i C. \u0110\u1ea7u v\u00e0 th\u00e2n ren tu\u00e2n theo ki\u1ec3u b\u1ed1 tr\u00ed bu l\u00f4ng nh\u01b0ng c\u00f3 t\u00ednh \u0111\u1ebfn vi\u1ec7c t\u1ea1o ren.<\/p>\n

            V\u1ec1 m\u1eb7t h\u00ecnh h\u1ecdc: \u0110\u1ecbnh v\u1ecb\/\u0111\u1ed9 l\u1ec7ch t\u00e2m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thao t\u00e1c g\u00f5 th\u1eb3ng, tr\u00e1nh l\u00e0m g\u00e3y.<\/p>\n

            C\u00e1c \u1ee9ng d\u1ee5ng trong gia c\u00f4ng kim lo\u1ea1i t\u1ea5m\/nh\u1ef1a \u0111\u00f2i h\u1ecfi dung sai ch\u00ednh x\u00e1c cao cho vi\u1ec7c l\u1eafp l\u1ed7. C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 d\u1ec5 l\u1eafp \u0111\u1eb7t v\u00e0 \u0111\u1ed9 b\u1ec1n gi\u1eef.<\/p>\n

            Vi\u1ec7c ki\u1ec3m tra bao g\u1ed3m c\u1ea3 c\u00e1c th\u1eed nghi\u1ec7m m\u00f4-men xo\u1eafn. \u200b\u200bDung sai gi\u00fap ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t ren ho\u1eb7c l\u1eafp r\u00e1p l\u1ecfng l\u1ebbo \u1edf c\u00e1c v\u1eadt li\u1ec7u m\u1ec1m.<\/p>\n

              \n
            • Dung sai ren \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 gia c\u00f4ng.<\/li>\n
            • Dung sai \u0111\u1ea7u xi lanh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1edbi tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n.<\/li>\n
            • Chi\u1ec1u d\u00e0i t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ed9 s\u00e2u xuy\u00ean th\u1ea5u.<\/li>\n<\/ul>\n

              Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh linh ho\u1ea1t tr\u00ean nhi\u1ec1u ch\u1ea5t li\u1ec7u kh\u00e1c nhau nh\u01b0 g\u1ed7\/kim lo\u1ea1i.<\/p>\n<\/section>\n

              C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
              \n
              S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m A, B v\u00e0 C trong ti\u00eau chu\u1ea9n GB\/T 3103.1-2002 l\u00e0 g\u00ec?<\/dt>\n
              Lo\u1ea1i A c\u00f3 dung sai ch\u1eb7t ch\u1ebd nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao, lo\u1ea1i B d\u00e0nh cho s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n, v\u00e0 lo\u1ea1i C d\u00e0nh cho m\u1ee5c \u0111\u00edch chung v\u1edbi \u0111\u1ed9 l\u1eafp gh\u00e9p l\u1ecfng h\u01a1n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t.<\/dd>\n
              Dung sai ren \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u1ed1c v\u00edt nh\u01b0 th\u1ebf n\u00e0o?<\/dt>\n
              Dung sai ch\u1eb7t ch\u1ebd h\u01a1n nh\u01b0 6g \u0111\u1ea3m b\u1ea3o s\u1ef1 gh\u00e9p n\u1ed1i t\u1ed1t h\u01a1n, gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng l\u1ecfng l\u1ebbo do rung \u0111\u1ed9ng v\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u00e2n b\u1ed1 t\u1ea3i tr\u1ecdng trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p quan tr\u1ecdng.<\/dd>\n
              Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra n\u00e0o \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c dung sai n\u00e0y?<\/dt>\n
              S\u1eed d\u1ee5ng th\u01b0\u1edbc \u0111o ren, th\u01b0\u1edbc \u0111o micromet v\u00e0 m\u00e1y \u0111o t\u1ecda \u0111\u1ed9 (CMM) \u0111\u1ec3 \u0111o k\u00edch th\u01b0\u1edbc; s\u1eed d\u1ee5ng m\u00e1y so s\u00e1nh quang h\u1ecdc \u0111\u1ec3 \u0111o h\u00ecnh h\u1ecdc nh\u1eb1m x\u00e1c minh s\u1ef1 ph\u00f9 h\u1ee3p.<\/dd>\n
              C\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh dung sai cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 kh\u00f4ng?<\/dt>\n
              V\u00e2ng, h\u00e3y tham kh\u1ea3o c\u00e1c ti\u00eau chu\u1ea9n m\u1ea1; l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111i\u1ec1u ch\u1ec9nh dung sai tr\u01b0\u1edbc khi m\u1ea1 \u0111\u1ec3 duy tr\u00ec th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt cu\u1ed1i c\u00f9ng.<\/dd>\n
              T\u1ea1i sao dung sai \u0111\u1ed9 th\u1eb3ng l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c bu l\u00f4ng d\u00e0i?<\/dt>\n
              N\u00f3 ng\u0103n ng\u1eeba \u1ee9ng su\u1ea5t u\u1ed1n, \u0111\u1ea3m b\u1ea3o t\u1ea3i tr\u1ecdng ph\u00e2n b\u1ed1 \u0111\u1ec1u v\u00e0 gi\u1ea3m nguy c\u01a1 h\u01b0 h\u1ecfng trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu k\u00e9o nh\u01b0 c\u1ea7u.<\/dd>\n
              Ti\u00eau chu\u1ea9n n\u00e0y x\u1eed l\u00fd c\u00e1c t\u00ednh n\u0103ng \u0111\u1eb7c bi\u1ec7t nh\u01b0 m\u1eb7t b\u00edch nh\u01b0 th\u1ebf n\u00e0o?<\/dt>\n
              C\u00e1c m\u1eb7t b\u00edch c\u00f3 gi\u00e1 tr\u1ecb dw t\u1ed1i thi\u1ec3u; dung sai \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng.<\/dd>\n<\/dl>\n<\/div>","protected":false},"excerpt":{"rendered":"

              Introduction to GB\/T 3103.1-2002 The GB\/T 3103.1-2002 standard specifies tolerances for fasteners, including bolts, screws, studs, and nuts, ensuring consistency in manufacturing and application across various industries. This standard is crucial for mechanical engineering, automotive, aerospace, and construction sectors where precise fitting and reliability are paramount. It categorizes products into grades A, B, and C […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5650","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/comments?post=5650"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5650\/revisions"}],"predecessor-version":[{"id":5651,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5650\/revisions\/5651"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5650"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}