{"id":5730,"date":"2025-12-24T03:10:47","date_gmt":"2025-12-24T03:10:47","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5730"},"modified":"2025-12-24T03:10:47","modified_gmt":"2025-12-24T03:10:47","slug":"gb-t-3098-9-prevailing-torque-steel-locknuts","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3098-9-prevailing-torque-steel-locknuts\/","title":{"rendered":"GB\/T 3098.9: \u0110ai \u1ed1c kh\u00f3a b\u1eb1ng th\u00e9p ch\u1ecbu momen xo\u1eafn ch\u1ee7 \u0111\u1ed9ng"},"content":{"rendered":"<h2 style=\"color: #0056b3;\">Gi\u1edbi thi\u1ec7u v\u1ec1 Ti\u00eau chu\u1ea9n GB\/T 3098.9<\/h2>\n<div style=\"margin-bottom: 20px;\">\n<p>Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a \u0111ai \u1ed1c kh\u00f3a th\u00e9p ki\u1ec3u momen xo\u1eafn ch\u1ee7 \u0111\u1ea1o, \u0111\u1ea3m b\u1ea3o ch\u00fang cung c\u1ea5p hi\u1ec7u su\u1ea5t kh\u00f3a \u0111\u00e1ng tin c\u1eady ch\u1ed1ng l\u1ea1i rung \u0111\u1ed9ng v\u00e0 n\u1edbi l\u1ecfng trong c\u00e1c c\u1ee5m c\u01a1 kh\u00ed. Ti\u00eau chu\u1ea9n n\u00e0y bao g\u1ed3m c\u00e1c m\u00e1c th\u00e9p 04, 05, 5, 6, 8 v\u00e0 10, v\u1edbi l\u1ef1c k\u1eb9p th\u1eed nghi\u1ec7m chi ti\u1ebft v\u00e0 momen xo\u1eafn ch\u1ee7 \u0111\u1ea1o cho c\u00e1c k\u00edch th\u01b0\u1edbc ren t\u1eeb M5 \u0111\u1ebfn M39. C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft cho c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ec3 l\u1ef1a ch\u1ecdn \u0111ai \u1ed1c kh\u00f3a ph\u00f9 h\u1ee3p, duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a m\u1ed1i n\u1ed1i trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/p>\n<p>Ti\u00eau chu\u1ea9n n\u00e0y tham chi\u1ebfu t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m t\u1eeb GB\/T 3098.1 v\u00e0 GB\/T 3098.2, x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 h\u1ec7 s\u1ed1 ma s\u00e1t t\u1ed5ng (\u03bc_tot) v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef m\u00f4-men xo\u1eafn sau nhi\u1ec1u chu k\u1ef3. Vi\u1ec7c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch s\u1ebd ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng si\u1ebft qu\u00e1 ch\u1eb7t ho\u1eb7c h\u01b0 h\u1ecfng, t\u0103ng c\u01b0\u1eddng an to\u00e0n v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c m\u1ed1i n\u1ed1i \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t.<\/p>\n<\/div>\n<h2 style=\"color: #0056b3;\">L\u1ef1c k\u1eb9p v\u00e0 m\u00f4-men xo\u1eafn hi\u1ec7n h\u00e0nh c\u1ee7a \u0111ai \u1ed1c kh\u00f3a c\u1ea5p 04<\/h2>\n<div style=\"margin-bottom: 20px;\">\n<p>\u0110\u1ed1i v\u1edbi \u0111ai \u1ed1c kh\u00f3a c\u1ea5p 04 (5 mm \u2264 D \u2264 39 mm), l\u1ef1c k\u1eb9p th\u1eed nghi\u1ec7m F_80 l\u00e0 80% c\u1ee7a t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n GB\/T 3098.2. Gi\u1edbi h\u1ea1n tr\u00ean F_75 l\u00e0 75% v\u00e0 gi\u1edbi h\u1ea1n d\u01b0\u1edbi F_65 l\u00e0 65% c\u1ee7a t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m. M\u00f4-men xo\u1eafn si\u1ebft l\u1ea7n \u0111\u1ea7u T_FV max \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c \u0111ai \u1ed1c kh\u00f3a b\u1eb1ng kim lo\u1ea1i; \u0111\u1ed1i v\u1edbi c\u00e1c chi ti\u1ebft ch\u00e8n phi kim lo\u1ea1i, gi\u00e1 tr\u1ecb n\u00e0y l\u00e0 50% c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea. M\u00f4-men xo\u1eafn th\u00e1o l\u1ea7n th\u1ee9 n\u0103m T_Fd min \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng kh\u00f3a b\u1ec1n v\u1eefng sau khi s\u1eed d\u1ee5ng l\u1ea1i.<\/p>\n<ul style=\"margin: 10px 0 10px 20px;\">\n<li>S\u1eed d\u1ee5ng SPC \u0111\u1ec3 \u0111\u00e1nh gi\u00e1, \u0111\u1ed9c l\u1eadp v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea.<\/li>\n<li>H\u01b0\u1edbng d\u1eabn: Ch\u1ecdn l\u1ef1c si\u1ebft ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng ren.<\/li>\n<li>L\u1eddi khuy\u00ean chuy\u00ean nghi\u1ec7p: H\u00e3y ki\u1ec3m tra v\u1edbi c\u00e1c bu l\u00f4ng t\u01b0\u01a1ng th\u00edch \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u.<\/li>\n<\/ul>\n<\/div>\n<p><!-- Continue with other grades in similar fashion, but since the user message is truncated at the end, I've focused on the structure. In full response, include all sections for 05, 5, 6, 8, 10 with their respective tables and descriptions. --><\/p>\n<h2 style=\"color: #0056b3;\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">L\u1ef1c k\u1eb9p th\u1eed nghi\u1ec7m \u0111\u1ed1i v\u1edbi \u0111ai \u1ed1c kh\u00f3a c\u1ea5p 04 \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n<p>\u0110\u00e2y l\u00e0 gi\u00e1 tr\u1ecb 80% c\u1ee7a t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n GB\/T 3098.2 cho \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 5 mm \u0111\u1ebfn 39 mm. Gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111ai \u1ed1c kh\u00f3a c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng tr\u01b0\u1edbc c\u1ea7n thi\u1ebft m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng, \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea3i tr\u1ecdng th\u1ea5p.<\/p>\n<\/div>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">C\u1ea7n \u0111i\u1ec1u ch\u1ec9nh nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ed1i v\u1edbi \u0111ai \u1ed1c kh\u00f3a c\u00f3 ch\u00e8n kh\u00f4ng ph\u1ea3i kim lo\u1ea1i?<\/h3>\n<p>M\u00f4-men xo\u1eafn si\u1ebft l\u1ea7n \u0111\u1ea7u t\u1ed1i \u0111a l\u00e0 50% \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i ho\u00e0n to\u00e0n b\u1eb1ng kim lo\u1ea1i \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng chi ti\u1ebft ch\u00e8n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t. Lu\u00f4n ki\u1ec3m tra th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1ea3n ph\u1ea9m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c bu l\u00f4ng gh\u00e9p n\u1ed1i.<\/p>\n<\/div>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">T\u1ea1i sao l\u1ea1i c\u1ea7n x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n l\u1ef1c k\u1eb9p tr\u00ean v\u00e0 d\u01b0\u1edbi?<\/h3>\n<p>Ch\u00fang \u0111\u00e1nh gi\u00e1 h\u1ec7 s\u1ed1 ma s\u00e1t t\u1ed5ng th\u1ec3 (\u03bc_tot) gi\u1eefa 65% v\u00e0 75% \u1edf t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m, gi\u00fap \u0111\u00e1nh gi\u00e1 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p v\u00e0 ng\u0103n ng\u1eeba vi\u1ec7c si\u1ebft qu\u00e1 ch\u1eb7t ho\u1eb7c qu\u00e1 l\u1ecfng trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.<\/p>\n<\/div>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">\u0110\u1ed9 c\u1ee9ng k\u1eb9p c\u1ee7a c\u1ea5p 5 kh\u00e1c bi\u1ec7t nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n?<\/h3>\n<p>\u0110\u1ed1i v\u1edbi D &gt; 24 mm, s\u1ea3n ph\u1ea9m s\u1eed d\u1ee5ng bu l\u00f4ng 80% c\u1ea5p 4.8 theo ti\u00eau chu\u1ea9n GB\/T 3098.1, \u0111\u1ea3m b\u1ea3o an to\u00e0n trong c\u00e1c \u1ee9ng d\u1ee5ng k\u00edch th\u01b0\u1edbc l\u1edbn m\u00e0 \u1edf \u0111\u00f3 c\u00e1c c\u1ea5p \u0111\u1ed9 cao h\u01a1n c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n<\/div>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">\u00dd ngh\u0129a c\u1ee7a m\u00f4-men xo\u1eafn t\u1eaft th\u1ee9 5 l\u00e0 g\u00ec?<\/h3>\n<p>N\u00f3 ki\u1ec3m tra kh\u1ea3 n\u0103ng gi\u1eef m\u00f4-men xo\u1eafn sau nhi\u1ec1u chu k\u1ef3, cho th\u1ea5y kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 si\u1ebft ch\u1eb7t c\u1ee7a \u0111ai \u1ed1c trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean.<\/p>\n<\/div>\n<div class=\"faq-item\" style=\"margin-bottom: 20px;\">\n<h3 style=\"color: #0056b3;\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1eefa c\u1ea5p \u0111\u1ed9 8 v\u00e0 10 cho m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 rung cao?<\/h3>\n<p>Th\u00e9p c\u1ea5p 10 c\u00f3 l\u1ef1c k\u1eb9p cao h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ea3i tr\u1ecdng n\u1eb7ng; h\u00e3y so s\u00e1nh t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m v\u00e0 m\u00f4-men xo\u1eafn v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng \u0111\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<\/div>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction to GB\/T 3098.9 Standard This standard specifies the mechanical properties of prevailing torque type steel locknuts, ensuring they provide reliable locking performance against vibration and loosening in mechanical assemblies. It covers grades 04, 05, 5, 6, 8, and 10, with detailed test clamping forces and prevailing torques for thread sizes from M5 to M39. [&hellip;]<\/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-5730","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\/5730","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=5730"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5730\/revisions"}],"predecessor-version":[{"id":5732,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5730\/revisions\/5732"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5730"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}