{"id":5837,"date":"2025-12-25T02:54:14","date_gmt":"2025-12-25T02:54:14","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5837"},"modified":"2025-12-25T02:58:30","modified_gmt":"2025-12-25T02:58:30","slug":"stainless-steel-eye-bolts-nuts-din-580-582","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/stainless-steel-eye-bolts-nuts-din-580-582\/","title":{"rendered":"Bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c m\u00f3c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 DIN 580\/582"},"content":{"rendered":"
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Gi\u1edbi thi\u1ec7u<\/h2>\n

Bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c m\u00f3c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, tu\u00e2n theo ti\u00eau chu\u1ea9n DIN 580 v\u00e0 DIN 582, l\u00e0 nh\u1eefng b\u1ed9 ph\u1eadn thi\u1ebft y\u1ebfu trong c\u00e1c \u1ee9ng d\u1ee5ng n\u00e2ng h\u1ea1 v\u00e0 l\u1eafp \u0111\u1eb7t trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. C\u00e1c lo\u1ea1i \u1ed1c v\u00edt n\u00e0y cung c\u1ea5p \u0111i\u1ec3m g\u1eafn k\u1ebft ch\u1eafc ch\u1eafn cho x\u00edch, d\u00e2y th\u1eebng ho\u1eb7c c\u00e1p, \u0111\u1ea3m b\u1ea3o vi\u1ec7c x\u1eed l\u00fd t\u1ea3i tr\u1ecdng an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n cao. Ti\u00eau chu\u1ea9n DIN 580 quy \u0111\u1ecbnh bu l\u00f4ng m\u00f3c c\u00f3 ren ngo\u00e0i, trong khi DIN 582 quy \u0111\u1ecbnh \u0111ai \u1ed1c m\u00f3c c\u00f3 ren trong. \u0110\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb \u200b\u200bc\u00e1c v\u1eadt li\u1ec7u nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 AISI 304 ho\u1eb7c 316, c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y c\u00f3 \u0111\u1ed9 b\u1ec1n cao trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t ho\u1eb7c k\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, quy tr\u00ecnh s\u1ea3n xu\u1ea5t, t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t, d\u1ef1a tr\u00ean c\u00e1c h\u01b0\u1edbng d\u1eabn \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp c\u1ee7a Vi\u1ec7n Ti\u00eau chu\u1ea9n h\u00f3a \u0110\u1ee9c (DIN). B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 v\u00e0 k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i \u1ed1c v\u00edt ph\u00f9 h\u1ee3p \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro, n\u00e2ng cao hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh an to\u00e0n qu\u1ed1c t\u1ebf nh\u01b0 c\u00e1c ti\u00eau chu\u1ea9n ISO v\u00e0 EN.<\/p>\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y n\u1eb1m \u1edf kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng \u0111\u1ed9ng m\u00e0 kh\u00f4ng b\u1ecb h\u1ecfng. V\u00ed d\u1ee5, trong x\u00e2y d\u1ef1ng, ch\u00fang h\u1ed7 tr\u1ee3 n\u00e2ng h\u1ea1 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng, trong khi \u1edf c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i kh\u01a1i, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n do n\u01b0\u1edbc m\u1eb7n l\u00e0 r\u1ea5t quan tr\u1ecdng. Thi\u1ebft k\u1ebf \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o h\u00ecnh d\u1ea1ng c\u1ee7a m\u1eaft m\u00f3c ph\u00e2n b\u1ed5 \u1ee9ng su\u1ea5t \u0111\u1ed3ng \u0111\u1ec1u, ng\u0103n ng\u1eeba bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng. H\u01b0\u1edbng d\u1eabn n\u00e0y nh\u1eb1m cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft to\u00e0n di\u1ec7n, bao g\u1ed3m b\u1ea3ng k\u00edch th\u01b0\u1edbc v\u00e0 h\u1ec7 s\u1ed1 an to\u00e0n, \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t trong mua s\u1eafm v\u00e0 \u1ee9ng d\u1ee5ng.<\/p>\n<\/section>\n

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Bu l\u00f4ng m\u00f3c DIN 580<\/h2>\n

Bu l\u00f4ng m\u00f3c DIN 580 l\u00e0 thi\u1ebft b\u1ecb n\u00e2ng \u0111\u01b0\u1ee3c r\u00e8n, c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 v\u00f2ng m\u00f3c v\u00e0 th\u00e2n ren, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu t\u1ea3i tr\u1ecdng d\u1ecdc tr\u1ee5c trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u00e2ng h\u1ea1. C\u00e1c bu l\u00f4ng n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c ren ho\u00e0n to\u00e0n v\u00e0o v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i t\u1ed1i \u01b0u, v\u1edbi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0103n kh\u1edbp ch\u1eafc ch\u1eafn \u0111\u1ec3 tr\u00e1nh t\u1eadp trung \u1ee9ng su\u1ea5t. C\u00f3 s\u1eb5n b\u1eb1ng th\u00e9p carbon m\u1ea1 k\u1ebdm cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 (AISI 304 ho\u1eb7c 316) cho m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, ch\u00fang tu\u00e2n th\u1ee7 c\u00e1c dung sai s\u1ea3n xu\u1ea5t nghi\u00eam ng\u1eb7t. Ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh c\u00e1c k\u00edch th\u01b0\u1edbc t\u1eeb M6 \u0111\u1ebfn M100, v\u1edbi gi\u1edbi h\u1ea1n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c (WLL) \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n d\u1ef1a tr\u00ean h\u1ec7 s\u1ed1 an to\u00e0n 4:1 ho\u1eb7c cao h\u01a1n, t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng. \u0110\u1ed1i v\u1edbi c\u00e1c bi\u1ebfn th\u1ec3 th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u1ed9 b\u1ec1n ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 210 MPa \u0111\u1ed1i v\u1edbi A2-50 \u0111\u1ebfn 700 MPa \u0111\u1ed1i v\u1edbi A4-80, mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady d\u01b0\u1edbi \u1ee9ng su\u1ea5t k\u00e9o v\u00e0 c\u1eaft.<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, vi\u1ec7c l\u1eafp \u0111\u1eb7t y\u00eau c\u1ea7u c\u0103n ch\u1ec9nh vu\u00f4ng g\u00f3c v\u1edbi h\u01b0\u1edbng t\u1ea3i \u0111\u1ec3 ng\u0103n ng\u1eeba m\u00f4men u\u1ed1n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng. Vi\u1ec7c ki\u1ec3m tra tr\u1ef1c quan c\u00e1c v\u1ebft n\u1ee9t ho\u1eb7c bi\u1ebfn d\u1ea1ng l\u00e0 b\u1eaft bu\u1ed9c tr\u01b0\u1edbc m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng, theo h\u01b0\u1edbng d\u1eabn c\u1ee7a DIN. Bu l\u00f4ng m\u1eaft b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i trong ng\u00e0nh ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m ho\u1eb7c d\u01b0\u1ee3c ph\u1ea9m, n\u01a1i v\u1ec7 sinh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c ch\u1ea5t t\u1ea9y r\u1eeda l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. Vi\u1ec7c l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p c\u1ea7n xem x\u00e9t g\u00f3c t\u1ea3i; v\u00ed d\u1ee5, \u1edf g\u00f3c 45 \u0111\u1ed9, t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c an to\u00e0n (WLL) gi\u1ea3m \u0111i 30-50% \u0111\u1ec3 t\u00ednh \u0111\u1ebfn \u1ee9ng su\u1ea5t t\u0103ng l\u00ean.<\/p>\n<\/section>\n

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\u0110ai \u1ed1c m\u1eaft DIN 582<\/h2>\n

\u0110ai \u1ed1c m\u00f3c DIN 582 b\u1ed5 sung cho bu l\u00f4ng m\u00f3c b\u1eb1ng c\u00e1ch cung c\u1ea5p \u0111i\u1ec3m n\u00e2ng c\u00f3 ren trong, l\u00fd t\u01b0\u1edfng \u0111\u1ec3 g\u1eafn v\u00e0o thanh ren ho\u1eb7c bu l\u00f4ng. \u0110\u01b0\u1ee3c r\u00e8n t\u1eeb th\u00e9p carbon ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng cao, c\u00e1c \u0111ai \u1ed1c n\u00e0y c\u00f3 thi\u1ebft k\u1ebf m\u00f3c ch\u1eafc ch\u1eafn \u0111\u1ec3 x\u1eed l\u00fd t\u1ea3i tr\u1ecdng n\u00e2ng m\u1ed9t c\u00e1ch an to\u00e0n. Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c cho s\u1ef1 \u0103n kh\u1edbp ren, \u0111\u1ea3m b\u1ea3o ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u1edbi bu l\u00f4ng gh\u00e9p n\u1ed1i \u0111\u1ec3 ph\u00e2n b\u1ed5 l\u1ef1c \u0111\u1ec1u. C\u00e1c t\u00f9y ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9, ch\u1eb3ng h\u1ea1n nh\u01b0 AISI 304 \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n n\u00f3i chung ho\u1eb7c AISI 316 v\u1edbi h\u00e0m l\u01b0\u1ee3ng molypden cao h\u01a1n \u0111\u1ec3 ch\u1ed1ng r\u1ed7, \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. Gi\u00e1 tr\u1ecb WLL \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n, v\u00e0 c\u00e1c \u0111ai \u1ed1c kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho t\u1ea3i tr\u1ecdng ngang tr\u1eeb khi \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 r\u00f5 r\u00e0ng.<\/p>\n

Quy tr\u00ecnh s\u1ea3n xu\u1ea5t bao g\u1ed3m r\u00e8n d\u1eadp \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111\u1ed9 r\u1ed7 v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ef1 th\u1eb3ng h\u00e0ng c\u1ee7a d\u00f2ng h\u1ea1t nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n t\u1ed1i \u0111a. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t nh\u01b0 th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc. Trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 l\u1eafp \u0111\u1eb7t c\u1ea7n c\u1ea9u ho\u1eb7c m\u00e1y m\u00f3c, \u0111ai \u1ed1c m\u00f3c gi\u00fap k\u1ebft n\u1ed1i nhanh ch\u00f3ng, nh\u01b0ng ng\u01b0\u1eddi s\u1eed d\u1ee5ng ph\u1ea3i ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a ren v\u00e0 tr\u00e1nh qu\u00e1 t\u1ea3i. N\u00ean ki\u1ec3m tra m\u00f4-men xo\u1eafn th\u01b0\u1eddng xuy\u00ean v\u00e0 ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y, ch\u1eb3ng h\u1ea1n nh\u01b0 ki\u1ec3m tra b\u1eb1ng h\u1ea1t t\u1eeb t\u00ednh, \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n theo th\u1eddi gian.<\/p>\n<\/section>\n

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V\u1eadt li\u1ec7u v\u00e0 S\u1ea3n xu\u1ea5t<\/h2>\n

V\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o bu l\u00f4ng m\u1eaft DIN 580 v\u00e0 \u0111ai \u1ed1c m\u1eaft DIN 582 bao g\u1ed3m th\u00e9p cacbon th\u1ea5p (v\u00ed d\u1ee5: C15E) cho c\u00e1c l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit nh\u01b0 A2 (304) ho\u1eb7c A4 (316) cho kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i. C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00ean \u0111\u1ebfn 800 MPa, v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh gi\u00e3n d\u00e0i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 d\u1ebbo d\u01b0\u1edbi t\u1ea3i tr\u1ecdng va \u0111\u1eadp. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t bao g\u1ed3m r\u00e8n, gia c\u00f4ng v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t: r\u00e8n d\u1eadp \u1edf 900-1200\u00b0C gi\u00fap s\u1eafp x\u1ebfp c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a kim lo\u1ea1i, ti\u1ebfp theo l\u00e0 c\u00e1n ren \u0111\u1ec3 t\u1ea1o ra c\u00e1c ren ch\u00ednh x\u00e1c, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi. \u0110\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, qu\u00e1 tr\u00ecnh \u1ee7 gi\u00fap gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong, v\u00e0 qu\u00e1 tr\u00ecnh \u0111i\u1ec7n ph\u00e2n ho\u1eb7c th\u1ee5 \u0111\u1ed9ng h\u00f3a lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n khe h\u1edf.<\/p>\n

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  • Th\u00e9p cacbon:<\/strong> \u0110\u01b0\u1ee3c m\u1ea1 k\u1ebdm \u0111\u1ec3 ch\u1ed1ng g\u1ec9, th\u00edch h\u1ee3p s\u1eed d\u1ee5ng trong nh\u00e0 ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u1eb9, v\u1edbi gi\u1edbi h\u1ea1n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c (WLL) d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n k\u00e9o 235 MPa.<\/li>\n
  • Th\u00e9p kh\u00f4ng g\u1ec9 304:<\/strong> Ch\u1ed1ng oxy h\u00f3a v\u00e0 axit nh\u1eb9, l\u00fd t\u01b0\u1edfng cho nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 300\u00b0C, nh\u01b0ng d\u1ec5 b\u1ecb n\u1ee9t do \u1ee9ng su\u1ea5t clorua.<\/li>\n
  • Th\u00e9p kh\u00f4ng g\u1ec9 316:<\/strong> \u0110\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng th\u00eam molypden \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n ho\u1eb7c h\u00f3a ch\u1ea5t, duy tr\u00ec \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb -200\u00b0C \u0111\u1ebfn 400\u00b0C.<\/li>\n
  • \u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng:<\/strong> Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n EN 10204 v\u1ec1 ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u, bao g\u1ed3m th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m c\u01a1 h\u1ecdc nh\u01b0 \u0111\u1ed9 c\u1ee9ng (HV 120-220) v\u00e0 x\u00e1c minh t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m.<\/li>\n<\/ul>\n

    C\u00e1c quy tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n DIN, v\u1edbi kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c t\u1eeb nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ebfn th\u00e0nh ph\u1ea9m. C\u00e1c l\u1edbp ph\u1ee7 t\u00f9y ch\u1ec9nh, nh\u01b0 m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng cho th\u00e9p carbon, c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi.<\/p>\n<\/section>\n

    \n

    Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 b\u1ea3ng bi\u1ec3u<\/h2>\n

    C\u00e1c b\u1ea3ng sau \u0111\u00e2y n\u00eau r\u00f5 c\u00e1c k\u00edch th\u01b0\u1edbc ch\u00ednh c\u1ee7a bu l\u00f4ng m\u00f3c DIN 580 v\u00e0 \u0111ai \u1ed1c m\u00f3c DIN 582, d\u1ef1a tr\u00ean c\u00e1c ti\u00eau chu\u1ea9n ch\u00ednh th\u1ee9c. T\u1ea5t c\u1ea3 c\u00e1c ph\u00e9p \u0111o \u0111\u1ec1u t\u00ednh b\u1eb1ng milim\u00e9t, v\u1edbi dung sai theo ti\u00eau chu\u1ea9n DIN. C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 an to\u00e0n trong c\u00e1c thi\u1ebft l\u1eadp n\u00e2ng h\u1ea1. \u0110\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n ISO 3506, ch\u1eb3ng h\u1ea1n nh\u01b0 A4-70 bi\u1ec3u th\u1ecb \u0111\u1ed9 b\u1ec1n k\u00e9o 700 MPa.<\/p>\n

    K\u00edch th\u01b0\u1edbc bu l\u00f4ng m\u00f3c DIN 580<\/h3>\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc danh ngh\u0129a (d1)<\/th>\nd2<\/th>\nd3<\/th>\ne<\/th>\nh<\/th>\nk<\/th>\nWLL (t) \u2013 Th\u00e9p<\/th>\nWLL (t) \u2013 Th\u00e9p kh\u00f4ng g\u1ec9 A4<\/th>\n<\/tr>\n<\/thead>\n
    M6<\/td>\n20<\/td>\n36<\/td>\n8.5<\/td>\n18<\/td>\n8<\/td>\n0.07<\/td>\n0.05<\/td>\n<\/tr>\n
    M8<\/td>\n20<\/td>\n36<\/td>\n8.5<\/td>\n18<\/td>\n8<\/td>\n0.14<\/td>\n0.10<\/td>\n<\/tr>\n
    M10<\/td>\n25<\/td>\n45<\/td>\n10<\/td>\n22.5<\/td>\n10<\/td>\n0.23<\/td>\n0.17<\/td>\n<\/tr>\n
    M12<\/td>\n30<\/td>\n54<\/td>\n11<\/td>\n26<\/td>\n12<\/td>\n0.34<\/td>\n0.24<\/td>\n<\/tr>\n
    M16<\/td>\n35<\/td>\n63<\/td>\n13<\/td>\n31<\/td>\n14<\/td>\n0.70<\/td>\n0.50<\/td>\n<\/tr>\n
    M20<\/td>\n40<\/td>\n72<\/td>\n16<\/td>\n35<\/td>\n16<\/td>\n1.20<\/td>\n0.86<\/td>\n<\/tr>\n
    M24<\/td>\n50<\/td>\n90<\/td>\n20<\/td>\n45<\/td>\n20<\/td>\n1.80<\/td>\n1.29<\/td>\n<\/tr>\n
    M30<\/td>\n65<\/td>\n108<\/td>\n24<\/td>\n55<\/td>\n24<\/td>\n3.60<\/td>\n2.58<\/td>\n<\/tr>\n
    M36<\/td>\n75<\/td>\n126<\/td>\n28<\/td>\n64<\/td>\n28<\/td>\n5.10<\/td>\n3.65<\/td>\n<\/tr>\n
    M42<\/td>\n85<\/td>\n144<\/td>\n32<\/td>\n73<\/td>\n32<\/td>\n7.00<\/td>\n5.00<\/td>\n<\/tr>\n
    M48<\/td>\n100<\/td>\n166<\/td>\n38<\/td>\n85<\/td>\n38<\/td>\n8.60<\/td>\n6.14<\/td>\n<\/tr>\n
    M56<\/td>\n120<\/td>\n184<\/td>\n44<\/td>\n98<\/td>\n44<\/td>\n11.50<\/td>\n8.21<\/td>\n<\/tr>\n
    M64<\/td>\n120<\/td>\n206<\/td>\n44<\/td>\n98<\/td>\n44<\/td>\n16.00<\/td>\n11.43<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    L\u01b0u \u00fd: Gi\u00e1 tr\u1ecb WLL \u00e1p d\u1ee5ng cho t\u1ea3i tr\u1ecdng n\u00e2ng th\u1eb3ng \u0111\u1ee9ng v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 4. Gi\u1ea3m gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng nghi\u00eang. Sai s\u1ed1 cho ph\u00e9p: \u00b10,5 mm \u0111\u1ed1i v\u1edbi k\u00edch th\u01b0\u1edbc l\u00ean \u0111\u1ebfn 50 mm.<\/p>\n

    K\u00edch th\u01b0\u1edbc \u0111ai \u1ed1c m\u1eaft DIN 582<\/h3>\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc danh ngh\u0129a (d1)<\/th>\nd2<\/th>\nd3<\/th>\nd4<\/th>\ne<\/th>\nh<\/th>\nk<\/th>\nWLL (t) \u2013 Th\u00e9p<\/th>\nWLL (t) \u2013 Th\u00e9p kh\u00f4ng g\u1ec9 A4<\/th>\n<\/tr>\n<\/thead>\n
    M6<\/td>\n20<\/td>\n36<\/td>\n20<\/td>\n8.5<\/td>\n36<\/td>\n8<\/td>\n0.07<\/td>\n0.05<\/td>\n<\/tr>\n
    M8<\/td>\n20<\/td>\n36<\/td>\n20<\/td>\n8.5<\/td>\n36<\/td>\n8<\/td>\n0.14<\/td>\n0.10<\/td>\n<\/tr>\n
    M10<\/td>\n25<\/td>\n45<\/td>\n25<\/td>\n10<\/td>\n45<\/td>\n10<\/td>\n0.23<\/td>\n0.17<\/td>\n<\/tr>\n
    M12<\/td>\n30<\/td>\n54<\/td>\n30<\/td>\n11<\/td>\n53<\/td>\n12<\/td>\n0.34<\/td>\n0.24<\/td>\n<\/tr>\n
    M16<\/td>\n35<\/td>\n63<\/td>\n35<\/td>\n13<\/td>\n62<\/td>\n14<\/td>\n0.70<\/td>\n0.50<\/td>\n<\/tr>\n
    M20<\/td>\n40<\/td>\n72<\/td>\n40<\/td>\n16<\/td>\n71<\/td>\n16<\/td>\n1.20<\/td>\n0.86<\/td>\n<\/tr>\n
    M24<\/td>\n50<\/td>\n90<\/td>\n50<\/td>\n20<\/td>\n90<\/td>\n20<\/td>\n1.80<\/td>\n1.29<\/td>\n<\/tr>\n
    M30<\/td>\n60<\/td>\n108<\/td>\n65<\/td>\n24<\/td>\n109<\/td>\n24<\/td>\n3.60<\/td>\n2.58<\/td>\n<\/tr>\n
    M36<\/td>\n75<\/td>\n126<\/td>\n75<\/td>\n28<\/td>\n128<\/td>\n28<\/td>\n5.10<\/td>\n3.65<\/td>\n<\/tr>\n
    M42<\/td>\n85<\/td>\n144<\/td>\n85<\/td>\n32<\/td>\n147<\/td>\n32<\/td>\n7.00<\/td>\n5.00<\/td>\n<\/tr>\n
    M48<\/td>\n100<\/td>\n166<\/td>\n100<\/td>\n38<\/td>\n168<\/td>\n38<\/td>\n8.60<\/td>\n6.14<\/td>\n<\/tr>\n
    M56<\/td>\n110<\/td>\n184<\/td>\n110<\/td>\n44<\/td>\n187<\/td>\n44<\/td>\n11.50<\/td>\n8.21<\/td>\n<\/tr>\n
    M64<\/td>\n120<\/td>\n206<\/td>\n120<\/td>\n50<\/td>\n206<\/td>\n50<\/td>\n16.00<\/td>\n11.43<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    L\u01b0u \u00fd: K\u00edch th\u01b0\u1edbc ch\u1ec9 mang t\u00ednh danh ngh\u0129a; tham kh\u1ea3o b\u1ea3ng ti\u00eau chu\u1ea9n DIN \u0111\u1ec3 bi\u1ebft dung sai (th\u01b0\u1eddng l\u00e0 \u00b10,5 mm). T\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c an to\u00e0n (WLL) ch\u1ec9 \u00e1p d\u1ee5ng cho t\u1ea3i tr\u1ecdng d\u1ecdc tr\u1ee5c; c\u1ea7n gi\u1ea3m t\u1ea3i \u0111\u1ed1i v\u1edbi c\u00e1c thanh g\u00f3c.<\/p>\n<\/section>\n

    \n

    H\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng v\u00e0 an to\u00e0n<\/h2>\n

    Bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c m\u00f3c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 theo ti\u00eau chu\u1ea9n DIN 580\/582 r\u1ea5t \u0111a d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111i\u1ec3m n\u00e2ng an to\u00e0n. Trong k\u1ef9 thu\u1eadt h\u00e0ng h\u1ea3i, c\u00e1c bi\u1ebfn th\u1ec3 AISI 316 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n n\u01b0\u1edbc m\u1eb7n, th\u00edch h\u1ee3p cho vi\u1ec7c l\u1eafp \u0111\u1eb7t tr\u00ean t\u00e0u ho\u1eb7c gi\u00e0n khoan ngo\u00e0i kh\u01a1i. C\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p bao g\u1ed3m l\u1eafp \u0111\u1eb7t m\u00e1y m\u00f3c trong nh\u00e0 m\u00e1y, n\u01a1i c\u00e1c l\u1ef1a ch\u1ecdn th\u00e9p carbon m\u1ea1 k\u1ebdm l\u00e0 \u0111\u1ee7 cho m\u00f4i tr\u01b0\u1eddng kh\u00f4 r\u00e1o. Trong x\u00e2y d\u1ef1ng, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 neo v\u00e1n khu\u00f4n ho\u1eb7c n\u00e2ng c\u00e1c c\u1ea5u ki\u1ec7n \u0111\u00fac s\u1eb5n, v\u1edbi c\u00e1c c\u00e2n nh\u1eafc v\u1ec1 t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c an to\u00e0n (WLL) r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng tr\u00ean cao. C\u00e1c h\u01b0\u1edbng d\u1eabn an to\u00e0n y\u00eau c\u1ea7u ki\u1ec3m tra h\u00e0ng n\u0103m v\u1ec1 \u0111\u1ed9 m\u00e0i m\u00f2n, \u0103n m\u00f2n ho\u1eb7c gi\u00e3n n\u1edf, theo ti\u00eau chu\u1ea9n EN 13414. Kh\u00f4ng bao gi\u1edd v\u01b0\u1ee3t qu\u00e1 WLL v\u00e0 s\u1eed d\u1ee5ng d\u00e2y c\u00e1p \u1edf g\u00f3c kh\u00f4ng qu\u00e1 45 \u0111\u1ed9 m\u00e0 kh\u00f4ng gi\u1ea3m t\u1ea3i (v\u00ed d\u1ee5: kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a 70% \u1edf g\u00f3c 45\u00b0). Vi\u1ec7c \u0111\u00e0o t\u1ea1o v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt n\u00e2ng h\u1ea1 \u0111\u00fang c\u00e1ch, nh\u01b0 \u0111\u01b0\u1ee3c n\u00eau trong ASME B30.9, gi\u00fap ng\u0103n ng\u1eeba tai n\u1ea1n. \u0110\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, tr\u00e1nh tr\u1ed9n l\u1eabn v\u1edbi c\u00e1c kim lo\u1ea1i kh\u00e1c lo\u1ea1i \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a. Nh\u1eefng th\u1ef1c h\u00e0nh n\u00e0y \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh an to\u00e0n lao \u0111\u1ed9ng nh\u01b0 OSHA.<\/p>\n

      \n
    1. Ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n g\u1ed1c xu\u1ea5t x\u1ee9 v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh.<\/li>\n
    2. T\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 \u0111\u1ed9ng (v\u00ed d\u1ee5: 1,5 l\u1ea7n t\u1ea3i tr\u1ecdng t\u0129nh \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng va \u0111\u1eadp).<\/li>\n
    3. L\u1eafp \u0111\u1eb7t b\u1eb1ng c\u1edd l\u00ea l\u1ef1c theo \u0111\u00fang gi\u00e1 tr\u1ecb quy \u0111\u1ecbnh (v\u00ed d\u1ee5: 10 Nm cho M8).<\/li>\n
    4. B\u1ea3o qu\u1ea3n n\u01a1i kh\u00f4 r\u00e1o \u0111\u1ec3 gi\u1eef g\u00ecn b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m.<\/li>\n
    5. H\u00e3y v\u1ee9t b\u1ecf ngay nh\u1eefng v\u1eadt d\u1ee5ng b\u1ecb h\u01b0 h\u1ecfng \u0111\u1ec3 tr\u00e1nh r\u1ee7i ro.<\/li>\n<\/ol>\n

      B\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0y v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady, gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 n\u00e2ng cao an to\u00e0n trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00f2i h\u1ecfi cao.<\/p>\n<\/section>\n

      \n

      C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
      \n
      S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa bu l\u00f4ng m\u00f3c DIN 580 v\u00e0 \u0111ai \u1ed1c m\u00f3c DIN 582 l\u00e0 g\u00ec?<\/dt>\n
      Ti\u00eau chu\u1ea9n DIN 580 c\u00f3 ren ngo\u00e0i \u0111\u1ec3 b\u1eaft v\u00edt v\u00e0o v\u1eadt li\u1ec7u, trong khi ti\u00eau chu\u1ea9n DIN 582 c\u00f3 ren trong \u0111\u1ec3 g\u1eafn v\u00e0o \u0111inh t\u00e1n, c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 n\u00e2ng theo tr\u1ee5c v\u1edbi t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c t\u01b0\u01a1ng t\u1ef1.<\/dd>\n<\/dl>\n

       <\/p>\n

      \n
      T\u00f4i n\u00ean ch\u1ecdn lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 304 hay 316 cho bu l\u00f4ng m\u00f3c nh\u01b0 th\u1ebf n\u00e0o?<\/dt>\n
      Ch\u1ecdn th\u00e9p 304 \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed5ng qu\u00e1t; ch\u1ecdn th\u00e9p 316 trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua nh\u01b0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n ho\u1eb7c nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t v\u00ec h\u00e0m l\u01b0\u1ee3ng molypden c\u1ee7a n\u00f3 gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n r\u1ed7.<\/dd>\n<\/dl>\n

       <\/p>\n

      \n
      H\u1ec7 s\u1ed1 an to\u00e0n n\u00e0o \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho gi\u1edbi h\u1ea1n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c?<\/dt>\n
      H\u1ec7 s\u1ed1 an to\u00e0n t\u1ed1i thi\u1ec3u 4:1 l\u00e0 ti\u00eau chu\u1ea9n, ngh\u0129a l\u00e0 t\u1ea3i tr\u1ecdng ph\u00e1 v\u1ee1 g\u1ea5p b\u1ed1n l\u1ea7n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c an to\u00e0n (WLL); c\u1ea7n gi\u1ea3m t\u1ea3i tr\u1ecdng h\u01a1n n\u1eefa \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng nghi\u00eang ho\u1eb7c t\u1ea3i tr\u1ecdng \u0111\u1ed9ng theo h\u01b0\u1edbng d\u1eabn c\u1ee7a DIN.<\/dd>\n<\/dl>\n

       <\/p>\n

      \n
      C\u00e1c lo\u1ea1i \u1ed1c v\u00edt n\u00e0y c\u00f3 th\u1ec3 d\u00f9ng cho t\u1ea3i tr\u1ecdng ngang kh\u00f4ng?<\/dt>\n
      Kh\u00f4ng, ch\u00fang ch\u1ec9 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u1ea3i tr\u1ecdng d\u1ecdc tr\u1ee5c; t\u1ea3i tr\u1ecdng ngang c\u00f3 th\u1ec3 g\u00e2y ra h\u01b0 h\u1ecfng do u\u1ed1n cong, v\u00ec v\u1eady h\u00e3y s\u1eed d\u1ee5ng kh\u1edbp xoay ho\u1eb7c thi\u1ebft b\u1ecb n\u00e2ng h\u1ea1 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4ng theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng.<\/dd>\n<\/dl>\n

       <\/p>\n

      \n
      C\u1ea7n th\u1ef1c hi\u1ec7n nh\u1eefng cu\u1ed9c ki\u1ec3m tra n\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c s\u1eed d\u1ee5ng li\u00ean t\u1ee5c?<\/dt>\n
      Ti\u1ebfn h\u00e0nh ki\u1ec3m tra tr\u1ef1c quan c\u00e1c v\u1ebft n\u1ee9t, \u0103n m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng ren tr\u01b0\u1edbc m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng; ki\u1ec3m tra chuy\u00ean nghi\u1ec7p h\u00e0ng n\u0103m, bao g\u1ed3m c\u1ea3 th\u1eed t\u1ea3i, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n.<\/dd>\n<\/dl>\n

       <\/p>\n

      \n
      C\u00f3 th\u1ec3 \u0111\u1eb7t h\u00e0ng k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh ngo\u00e0i c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau chu\u1ea9n DIN kh\u00f4ng?<\/dt>\n
      C\u00f3, nh\u01b0ng ch\u00fang ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u0111\u01b0\u01a1ng; h\u00e3y li\u00ean h\u1ec7 v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 c\u00f3 c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh v\u1edbi c\u00e1c ch\u1ee9ng nh\u1eadn ki\u1ec3m nghi\u1ec7m.<\/dd>\n<\/dl>\n

       <\/p>\n<\/section>\n

       <\/p>","protected":false},"excerpt":{"rendered":"

      Introduction Stainless steel eye bolts and nuts, conforming to DIN 580 and DIN 582 standards, are essential components in lifting and rigging applications across various industries. These fasteners provide secure attachment points for chains, ropes, or cables, ensuring safe handling of loads in environments demanding corrosion resistance and high strength. DIN 580 specifies eye bolts […]<\/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-5837","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\/5837","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=5837"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5837\/revisions"}],"predecessor-version":[{"id":5838,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5837\/revisions\/5838"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5837"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}