{"id":7366,"date":"2021-08-05T03:40:53","date_gmt":"2021-08-04T19:40:53","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7366"},"modified":"2026-06-24T03:42:42","modified_gmt":"2026-06-23T19:42:42","slug":"fretting-wear-in-bolted-joints-causes-and-fastener-solutions","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/fretting-wear-in-bolted-joints-causes-and-fastener-solutions\/","title":{"rendered":"S\u1ef1 m\u00e0i m\u00f2n \u1edf c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng: Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p chi ti\u1ebft si\u1ebft ch\u1eb7t"},"content":{"rendered":"<p>S\u1ef1 m\u00e0i m\u00f2n \u1edf c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p \u1edf m\u00e1y m\u00f3c, ph\u01b0\u01a1ng ti\u1ec7n, thi\u1ebft b\u1ecb n\u0103ng l\u01b0\u1ee3ng gi\u00f3, h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng ray, m\u00e1y b\u01a1m, m\u00e1y n\u00e9n v\u00e0 k\u1ebft c\u1ea5u th\u00e9p rung. N\u00f3 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n khi hai b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c k\u1eb9p di chuy\u1ec3n nh\u1eb9 v\u00e0o nhau khi ch\u1ecbu t\u1ea3i. S\u1ef1 chuy\u1ec3n \u0111\u1ed9ng tuy nh\u1ecf nh\u01b0ng thi\u1ec7t h\u1ea1i c\u00f3 th\u1ec3 t\u0103ng l\u00ean theo th\u1eddi gian.<\/p>\n\n\n\n<p>L\u00fac \u0111\u1ea7u, v\u1ebft x\u01b0\u1edbc c\u00f3 th\u1ec3 tr\u00f4ng gi\u1ed1ng nh\u01b0 b\u1ed9t m\u00e0u \u0111en, m\u1ea3nh v\u1ee5n m\u00e0u n\u00e2u \u0111\u1ecf, kim lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng, c\u00e1c v\u1ebft r\u1ed7 nh\u1ecf ho\u1eb7c v\u1ebft s\u1eb9o tr\u00ean b\u1ec1 m\u1eb7t xung quanh l\u1ed7 bu l\u00f4ng, m\u1eb7t v\u00f2ng \u0111\u1ec7m ho\u1eb7c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac. N\u1ebfu nguy\u00ean nh\u00e2n kh\u00f4ng \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1ed5n th\u1ea5t t\u1ea3i tr\u01b0\u1edbc, n\u1ee9t do m\u1ecfi, l\u1ecfng bu l\u00f4ng, h\u01b0 h\u1ecfng b\u1ec1 m\u1eb7t v\u00e0 h\u1ecfng kh\u1edbp s\u1edbm.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi bu l\u00f4ng, v\u00f2ng \u0111\u1ec7m v\u00e0 \u1ed1c v\u00edt c\u00f3 l\u1edbp ph\u1ee7 c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u00f3 y\u00eau c\u1ea7u cao, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem x\u00e9t XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a>, <a href=\"https:\/\/xzfastener.com\/vi\/fastener-type\/washers\/\">v\u00f2ng \u0111\u1ec7m<\/a>v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> trang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">M\u1eb7c b\u0103n kho\u0103n l\u00e0 g\u00ec?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chuy\u1ec3n \u0111\u1ed9ng nh\u1ecf, h\u01b0 h\u1ecfng nhi\u1ec1u l\u1ea7n<\/h3>\n\n\n\n<p>S\u1ef1 m\u00e0i m\u00f2n x\u1ea3y ra khi hai b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac b\u1ecb tr\u01b0\u1ee3t vi m\u00f4 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. Chuy\u1ec3n \u0111\u1ed9ng c\u00f3 th\u1ec3 ch\u1ec9 v\u00e0i micron nh\u01b0ng c\u0169ng \u0111\u1ee7 \u0111\u1ec3 l\u00e0m h\u1ecfng l\u1edbp m\u00e0ng b\u1ec1 m\u1eb7t v\u00e0 t\u1ea1o ra c\u00e1c m\u1ea3nh v\u1ee5n m\u00e0i m\u00f2n.<\/p>\n\n\n\n<p>Trong c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi l\u1ef1c k\u1eb9p kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 d\u1ecbch chuy\u1ec3n gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>V\u1ecb tr\u00ed \u0111\u00e1ng lo ng\u1ea1i<\/th><th>D\u1ea5u hi\u1ec7u chung<\/th><th>K\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 x\u1ea3y ra<\/th><\/tr><\/thead><tbody><tr><td>D\u01b0\u1edbi \u0111\u1ea7u bu l\u00f4ng<\/td><td>V\u00f2ng \u0111\u00e1nh b\u00f3ng, m\u1ea3nh v\u1ee5n t\u1ed1i<\/td><td>M\u1ea5t t\u1ea3i tr\u01b0\u1edbc<\/td><\/tr><tr><td>D\u01b0\u1edbi v\u00f2ng \u0111\u1ec7m<\/td><td>\u0110\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t ho\u1eb7c b\u1ed9t r\u1ec9 s\u00e9t<\/td><td>Thi\u1ec7t h\u1ea1i b\u1ec1 m\u1eb7t \u1ed5 tr\u1ee5c<\/td><\/tr><tr><td>Xung quanh l\u1ed7 bu l\u00f4ng<\/td><td>V\u1ebft m\u00f2n h\u00ecnh b\u1ea7u d\u1ee5c<\/td><td>Tr\u01b0\u1ee3t kh\u1edbp<\/td><\/tr><tr><td>Gi\u1eefa c\u00e1c t\u1ea5m<\/td><td>B\u1ed9t s\u1eabm m\u00e0u ho\u1eb7c r\u1ed7 c\u1ee5c b\u1ed9<\/td><td>B\u1eaft \u0111\u1ea7u v\u1ebft n\u1ee9t m\u1ecfi<\/td><\/tr><tr><td>Khu v\u1ef1c ti\u1ebfp x\u00fac ch\u1ee7 \u0111\u1ec1<\/td><td>M\u1eb7c ho\u1eb7c n\u00f4n nao<\/td><td>L\u1eafp r\u00e1p kh\u00f3 kh\u0103n ho\u1eb7c l\u1ecfng l\u1ebbo<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>S\u1ef1 b\u0103n kho\u0103n kh\u00f4ng gi\u1ed1ng nh\u01b0 s\u1ef1 \u0103n m\u00f2n th\u00f4ng th\u01b0\u1eddng. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh m\u00e0i m\u00f2n v\u00e0 oxy h\u00f3a k\u1ebft h\u1ee3p do chuy\u1ec3n \u0111\u1ed9ng nh\u1ecf l\u1eb7p \u0111i l\u1eb7p l\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao l\u1ea1i x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng b\u0103n kho\u0103n \u1edf c\u00e1c m\u1ed1i n\u1ed1i b\u1eaft v\u00edt<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u1edbp \u0111ang di chuy\u1ec3n khi kh\u00f4ng n\u00ean<\/h3>\n\n\n\n<p>M\u1ed1i n\u1ed1i bu l\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p s\u1ebd gi\u1eef cho c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c k\u1eb9p kh\u00f4ng b\u1ecb tr\u01b0\u1ee3t khi ch\u1ecbu t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c. Khi rung \u0111\u1ed9ng b\u00ean ngo\u00e0i, t\u1ea3i tr\u1ecdng c\u1eaft, chu tr\u00ecnh nhi\u1ec7t ho\u1eb7c t\u00e1c \u0111\u1ed9ng v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng ma s\u00e1t c\u1ee7a kh\u1edbp, chuy\u1ec3n \u0111\u1ed9ng vi m\u00f4 s\u1ebd b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>nguy\u00ean nh\u00e2n<\/th><th>L\u00e0m th\u1ebf n\u00e0o n\u00f3 d\u1eabn \u0111\u1ebfn b\u0103n kho\u0103n<\/th><\/tr><\/thead><tbody><tr><td>T\u1ea3i tr\u01b0\u1edbc th\u1ea5p<\/td><td>C\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c k\u1eb9p c\u00f3 th\u1ec3 tr\u01b0\u1ee3t<\/td><\/tr><tr><td>Ki\u1ec3m so\u00e1t m\u00f4-men xo\u1eafn k\u00e9m<\/td><td>L\u1ef1c k\u1eb9p kh\u00e1c nhau gi\u1eefa c\u00e1c bu l\u00f4ng<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m m\u1ec1m ho\u1eb7c v\u1eadt li\u1ec7u n\u1ec1n<\/td><td>B\u1ec1 m\u1eb7t v\u00f2ng bi nh\u00fang v\u00e0 gi\u1ea3m t\u1ea3i tr\u01b0\u1edbc<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i tay c\u1ea7m ng\u1eafn<\/td><td>Kh\u1edbp k\u00e9m \u0111\u00e0n h\u1ed3i v\u00e0 m\u1ea5t t\u1ea3i tr\u01b0\u1edbc nhanh h\u01a1n<\/td><\/tr><tr><td>Vibration<\/td><td>Chuy\u1ec3n \u0111\u1ed9ng ngang l\u1eb7p \u0111i l\u1eb7p l\u1ea1i<\/td><\/tr><tr><td>\u0110i xe \u0111\u1ea1p nhi\u1ec7t<\/td><td>S\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i l\u00e0m gi\u1ea3m s\u1ef1 \u1ed5n \u0111\u1ecbnh<\/td><\/tr><tr><td>\u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t kh\u00f4ng ph\u00f9 h\u1ee3p<\/td><td>\u0110i\u1ec3m cao c\u1ee5c b\u1ed9 m\u1eb7c \u0111\u1ea7u ti\u00ean<\/td><\/tr><tr><td>n\u00e9n l\u1edbp ph\u1ee7<\/td><td>L\u1ef1c k\u1eb9p th\u01b0 gi\u00e3n sau khi l\u1eafp \u0111\u1eb7t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>S\u1ef1 b\u0103n kho\u0103n th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ed5 l\u1ed7i cho bu l\u00f4ng, nh\u01b0ng thi\u1ebft k\u1ebf to\u00e0n b\u1ed9 kh\u1edbp n\u1ed1i th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t l\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao b\u0103n kho\u0103n l\u00e0 r\u1ee7i ro<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00f3 c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u c\u00e1c v\u1ebft n\u1ee9t m\u1ecfi<\/h3>\n\n\n\n<p>Nguy c\u01a1 nghi\u00eam tr\u1ecdng nh\u1ea5t kh\u00f4ng ch\u1ec9 l\u00e0 m\u00e0i m\u00f2n b\u1ec1 m\u1eb7t. S\u1ef1 b\u0103n kho\u0103n t\u1ea1o ra nh\u1eefng v\u00f9ng h\u01b0 h\u1ecfng nh\u1ecf c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u v\u1ebft n\u1ee9t. Trong rung \u0111\u1ed9ng chu k\u1ef3 cao, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd m\u1ecfi.<\/p>\n\n\n\n<p>S\u1ef1 b\u0103n kho\u0103n c\u0169ng c\u00f3 th\u1ec3 \u0111\u00e1nh l\u1eeba \u0111\u1ed9i b\u1ea3o tr\u00ec. Kh\u1edbp c\u00f3 th\u1ec3 tr\u00f4ng ch\u1eb7t nh\u01b0ng t\u1ea3i tr\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u00e3 gi\u1ea3m. \u0110ai \u1ed1c c\u00f3 th\u1ec3 v\u1eabn \u1edf \u0111\u00fang v\u1ecb tr\u00ed trong khi c\u00e1c b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c k\u1eb9p \u0111ang chuy\u1ec3n \u0111\u1ed9ng ch\u1eadm.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>R\u1ee7i ro<\/th><th>T\u00e1c \u0111\u1ed9ng th\u1ef1c t\u1ebf<\/th><\/tr><\/thead><tbody><tr><td>M\u1ea5t t\u1ea3i tr\u01b0\u1edbc<\/td><td>Kh\u1edbp l\u1ecfng l\u1ebbo v\u00e0 tr\u01b0\u1ee3t<\/td><\/tr><tr><td>Thi\u1ec7t h\u1ea1i b\u1ec1 m\u1eb7t<\/td><td>Ti\u1ebfp x\u00fac k\u00e9m v\u00e0 ki\u1ec3m so\u00e1t ma s\u00e1t th\u1ea5p h\u01a1n<\/td><\/tr><tr><td>V\u1ebft n\u1ee9t m\u1ecfi<\/td><td>Th\u1ea5t b\u1ea1i \u0111\u1ed9t ng\u1ed9t sau chu k\u1ef3 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i<\/td><\/tr><tr><td>T\u0103ng t\u1ed1c \u0103n m\u00f2n<\/td><td>C\u00e1c m\u1ea3nh v\u1ee5n oxit v\u00e0 l\u1edbp ph\u1ee7 b\u1ecb h\u01b0 h\u1ecfng<\/td><\/tr><tr><td>M\u1ea5t li\u00ean k\u1ebft<\/td><td>\u0110\u1ed9 rung c\u1ee7a m\u00e1y m\u00f3c t\u0103ng l\u00ean<\/td><\/tr><tr><td>Kh\u00f3 b\u1ea3o tr\u00ec<\/td><td>B\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac b\u1ecb gi\u1eef l\u1ea1i ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Trong m\u00e1y quay ho\u1eb7c rung, hi\u1ec7n t\u01b0\u1ee3ng b\u0103n kho\u0103n l\u00e0 d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o. N\u00f3 kh\u00f4ng n\u00ean b\u1ecb b\u1ecf qua nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u1ea9m m\u1ef9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p chi ti\u1ebft si\u1ebft ch\u1eb7t \u0111\u1ec3 ki\u1ec3m so\u00e1t phi\u1ec1n to\u00e1i<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1eaft \u0111\u1ea7u v\u1edbi t\u1ea3i tr\u01b0\u1edbc v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a kh\u1edbp<\/h3>\n\n\n\n<p>Gi\u1ea3i ph\u00e1p chi ti\u1ebft si\u1ebft ch\u1eb7t t\u1ed1t nh\u1ea5t th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn \u0111\u1eb7c bi\u1ec7t. N\u00f3 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng bu\u1ed9c ch\u1eb7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<p>C\u00e1c \u0111i\u1ec1u khi\u1ec3n ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng \u0111\u00fang k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5p bu l\u00f4ng.<\/li>\n\n\n\n<li>\u00c1p d\u1ee5ng t\u1ea3i tr\u01b0\u1edbc ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eaft ch\u1eb7t ph\u00f9 h\u1ee3p.<\/li>\n\n\n\n<li>Ch\u1ecdn v\u00f2ng \u0111\u1ec7m c\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 di\u1ec7n t\u00edch ch\u1ecbu l\u1ef1c th\u00edch h\u1ee3p.<\/li>\n\n\n\n<li>Tr\u00e1nh c\u00e1c b\u1ec1 m\u1eb7t m\u1ec1m d\u01b0\u1edbi t\u1ea3i k\u1eb9p cao.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng kh\u00f3a khi rung \u0111\u1ed9ng y\u00eau c\u1ea7u ch\u00fang.<\/li>\n\n\n\n<li>X\u00e1c nh\u1eadn t\u00e1c d\u1ee5ng c\u1ee7a l\u1edbp ph\u1ee7 v\u00e0 b\u00f4i tr\u01a1n \u0111\u1ed1i v\u1edbi m\u00f4-men xo\u1eafn.<\/li>\n\n\n\n<li>Ki\u1ec3m tra m\u1ed1i n\u1ed1i sau l\u1ea7n b\u1ea3o d\u01b0\u1ee1ng \u0111\u1ea7u ti\u00ean n\u1ebfu \u1ee9ng d\u1ee5ng n\u00e0y quan tr\u1ecdng.<\/li>\n<\/ol>\n\n\n\n<p>\u0110\u1ec3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u, XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/fastener-material\/carbon-steel\/\">\u1ed1c v\u00edt th\u00e9p carbon<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-material\/stainless-steel\/\">\u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/a> c\u00e1c trang c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi mua so s\u00e1nh c\u00e1c l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1ef1a ch\u1ecdn b\u1ec1 m\u1eb7t v\u00f2ng \u0111\u1ec7m v\u00e0 v\u00f2ng bi<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00f2ng \u0111\u1ec7m c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ho\u1eb7c l\u00e0m h\u1ecfng kh\u1edbp<\/h3>\n\n\n\n<p>V\u00f2ng \u0111\u1ec7m th\u01b0\u1eddng b\u1ecb b\u1ecf qua trong c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u00e1ng lo ng\u1ea1i. V\u00f2ng \u0111\u1ec7m m\u1ec1m c\u00f3 th\u1ec3 nh\u00fang d\u01b0\u1edbi t\u1ea3i, gi\u1ea3m t\u1ea3i tr\u01b0\u1edbc. V\u00f2ng \u0111\u1ec7m c\u00f3 \u0111\u1ed9 ph\u1eb3ng k\u00e9m c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 ti\u1ebfp x\u00fac kh\u00f4ng \u0111\u1ec1u. V\u00f2ng \u0111\u1ec7m qu\u00e1 nh\u1ecf c\u00f3 th\u1ec3 t\u1eadp trung \u00e1p l\u1ef1c.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>L\u1ef1a ch\u1ecdn v\u00f2ng \u0111\u1ec7m<\/th><th>T\u00e1c d\u1ee5ng ki\u1ec3m so\u00e1t phi\u1ec1n to\u00e1i<\/th><\/tr><\/thead><tbody><tr><td>V\u00f2ng \u0111\u1ec7m c\u1ee9ng<\/td><td>Gi\u1ea3m nh\u00fang d\u01b0\u1edbi t\u1ea3i tr\u01b0\u1edbc cao<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m l\u1edbn<\/td><td>Tr\u1ea3i t\u1ea3i tr\u00ean v\u1eadt li\u1ec7u m\u1ec1m h\u01a1n<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m kh\u00f3a n\u00eam<\/td><td>Gi\u00fap ch\u1ed1ng rung n\u1edbi l\u1ecfng<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m ph\u1eb3ng<\/td><td>H\u1ed7 tr\u1ee3 \u1ed5 tr\u1ee5c c\u01a1 b\u1ea3n<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m m\u00f9a xu\u00e2n<\/td><td>H\u1ed7 tr\u1ee3 h\u1ea1n ch\u1ebf trong rung \u0111\u1ed9ng nghi\u00eam tr\u1ecdng<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m tr\u00e1ng<\/td><td>L\u1edbp ph\u1ee7 bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c ph\u1ea3i ph\u00f9 h\u1ee3p<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c m\u1ed1i n\u1ed1i b\u1eaft v\u00edt c\u00f3 \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u00f2ng \u0111\u1ec7m ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5p \u0111\u1ed9 bu l\u00f4ng v\u00e0 y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1edbp ph\u1ee7, b\u00f4i tr\u01a1n v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n thay \u0111\u1ed5i ma s\u00e1t<\/h3>\n\n\n\n<p>L\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 \u0103n m\u00f2n nh\u01b0ng n\u00f3 c\u0169ng l\u00e0m thay \u0111\u1ed5i ma s\u00e1t. M\u1ea1 k\u1ebdm, m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng, v\u1ea3y k\u1ebdm, l\u1edbp ph\u1ee7 d\u1ea1ng Dacromet, PTFE, oxit \u0111en v\u00e0 l\u1edbp ho\u00e0n thi\u1ec7n photphat \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau trong qu\u00e1 tr\u00ecnh si\u1ebft ch\u1eb7t.<\/p>\n\n\n\n<p>N\u1ebfu gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn \u0111\u01b0\u1ee3c sao ch\u00e9p t\u1eeb tr\u1ea1ng th\u00e1i l\u1edbp ph\u1ee7 kh\u00e1c, t\u1ea3i tr\u01b0\u1edbc c\u00f3 th\u1ec3 qu\u00e1 th\u1ea5p ho\u1eb7c qu\u00e1 cao. Qu\u00e1 th\u1ea5p c\u00f3 th\u1ec3 khi\u1ebfn kh\u1edbp b\u1ecb tr\u01b0\u1ee3t. Qu\u00e1 cao c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ren ho\u1eb7c l\u00e0m n\u00e1t b\u1ec1 m\u1eb7t kh\u1edbp.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>T\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t<\/th><th>M\u1ed1i quan t\u00e2m b\u0103n kho\u0103n<\/th><\/tr><\/thead><tbody><tr><td>Th\u00e9p kh\u00f4<\/td><td>Ma s\u00e1t cao h\u01a1n, t\u1ea3i tr\u01b0\u1edbc kh\u00f4ng ch\u1eafc ch\u1eafn<\/td><\/tr><tr><td>Ch\u1ee7 \u0111\u1ec1 b\u00f4i tr\u01a1n<\/td><td>T\u1ea3i tr\u01b0\u1edbc cao h\u01a1n \u1edf c\u00f9ng m\u00f4-men xo\u1eafn<\/td><\/tr><tr><td>PTFE l\u1edbp ph\u1ee7<\/td><td>Ma s\u00e1t th\u1ea5p; m\u00f4-men xo\u1eafn ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c minh<\/td><\/tr><tr><td>L\u1edbp ph\u1ee7 v\u1ea3y k\u1ebdm<\/td><td>H\u1eefu \u00edch khi v\u1ea5n \u0111\u1ec1 ki\u1ec3m so\u00e1t \u0103n m\u00f2n v\u00e0 ma s\u00e1t<\/td><\/tr><tr><td>M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/td><td>B\u1ec1 m\u1eb7t nh\u00e1m h\u01a1n v\u00e0 \u0111\u1ed9 kh\u00edt c\u1ee7a ren ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra<\/td><\/tr><tr><td>L\u1edbp ph\u1ee7 b\u1ecb h\u01b0 h\u1ecfng<\/td><td>\u0110i\u1ec3m \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n c\u1ee5c b\u1ed9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ec3 tham kh\u1ea3o v\u1ec1 l\u1edbp ph\u1ee7, h\u00e3y xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/teflon-coating\/\">PTFE l\u1edbp ph\u1ee7<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/zinc-aluminum-coating\/\">l\u1edbp ph\u1ee7 nh\u00f4m k\u1ebdm<\/a> trang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra thi\u1ebft k\u1ebf v\u00e0 ki\u1ec3m tra<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ng\u0103n ch\u1eb7n b\u0103n kho\u0103n tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n<p>M\u1ed1i n\u1ed1i bu-l\u00f4ng ch\u1ed1ng m\u00e0i m\u00f2n ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t ho\u1eb7c l\u1eafp \u0111\u1eb7t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Ki\u1ec3m tra m\u1ee5c<\/th><th>H\u00e0nh \u0111\u1ed9ng c\u1ee7a Ng\u01b0\u1eddi mua ho\u1eb7c K\u1ef9 s\u01b0<\/th><\/tr><\/thead><tbody><tr><td>H\u01b0\u1edbng t\u1ea3i<\/td><td>X\u00e1c nh\u1eadn \u0111\u1ed9 rung k\u00e9o, c\u1eaft ho\u1eb7c rung ngang<\/td><\/tr><tr><td>T\u1ea3i tr\u01b0\u1edbc m\u1ee5c ti\u00eau<\/td><td>X\u00e1c \u0111\u1ecbnh m\u00f4-men xo\u1eafn, g\u00f3c ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p c\u0103ng<\/td><\/tr><tr><td>Y\u00eau c\u1ea7u v\u00f2ng \u0111\u1ec7m<\/td><td>Ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed9 c\u1ee9ng, k\u00edch th\u01b0\u1edbc v\u00e0 l\u1edbp ph\u1ee7<\/td><\/tr><tr><td>T\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t<\/td><td>X\u00e1c nh\u1eadn l\u1edbp ph\u1ee7 v\u00e0 b\u00f4i tr\u01a1n<\/td><\/tr><tr><td>V\u1eadt li\u1ec7u chung<\/td><td>Ki\u1ec3m tra \u0111\u1ed9 m\u1ec1m, s\u01a1n, l\u1edbp ph\u1ee7 v\u00e0 \u0111\u1ed9 ph\u1eb3ng<\/td><\/tr><tr><td>Ph\u01b0\u01a1ng ph\u00e1p kh\u00f3a<\/td><td>Th\u00eam \u0111ai \u1ed1c kh\u00f3a, v\u00f2ng \u0111\u1ec7m n\u00eam, ch\u1ea5t k\u1ebft d\u00ednh ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c n\u1ebfu c\u1ea7n<\/td><\/tr><tr><td>K\u1ebf ho\u1ea1ch ki\u1ec3m tra<\/td><td>Ki\u1ec3m tra t\u1ea3i tr\u01b0\u1edbc, hao m\u00f2n th\u1ecb gi\u00e1c v\u00e0 kho\u1ea3ng th\u1eddi gian ph\u1ee5c v\u1ee5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>N\u1ebfu ph\u00e1t hi\u1ec7n th\u1ea5y v\u1ebft x\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec, h\u00e3y ki\u1ec3m tra k\u1ef9 h\u01a1n chi ti\u1ebft si\u1ebft ch\u1eb7t. Ki\u1ec3m tra t\u00ecnh tr\u1ea1ng l\u1ed7, ti\u1ebfp x\u00fac t\u1ea5m, c\u0103n ch\u1ec9nh, \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 ngu\u1ed3n rung.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng g\u00ec ng\u01b0\u1eddi mua n\u00ean ch\u1ec9 \u0111\u1ecbnh<\/h3>\n\n\n\n<p>M\u1ed9t RFQ ho\u00e0n ch\u1ec9nh n\u00ean bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lo\u1ea1i chi ti\u1ebft si\u1ebft ch\u1eb7t, ti\u00eau chu\u1ea9n, k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5p \u0111\u1ed9.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m.<\/li>\n\n\n\n<li>B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u00f4i tr\u01a1n.<\/li>\n\n\n\n<li>T\u1ea3i \u1ee9ng d\u1ee5ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n rung.<\/li>\n\n\n\n<li>M\u00f4-men xo\u1eafn ho\u1eb7c t\u1ea3i tr\u01b0\u1edbc c\u1ea7n thi\u1ebft.<\/li>\n\n\n\n<li>Th\u00f4ng tin v\u1ec1 b\u1ec1 m\u1eb7t \u1ed5 tr\u1ee5c ho\u1eb7c v\u1eadt li\u1ec7u m\u1ed1i n\u1ed1i.<\/li>\n\n\n\n<li>Ph\u01b0\u01a1ng ph\u00e1p kh\u00f3a n\u1ebfu \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 ho\u1eb7c y\u00eau c\u1ea7u ma s\u00e1t.<\/li>\n\n\n\n<li>C\u00e1c y\u00eau c\u1ea7u v\u1ec1 ch\u1ee9ng nh\u1eadn, ki\u1ec3m tra v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c.<\/li>\n\n\n\n<li>Th\u1eed nghi\u1ec7m m\u1eabu ho\u1eb7c th\u1eed nghi\u1ec7m l\u1eafp r\u00e1p n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi bu l\u00f4ng, v\u00f2ng \u0111\u1ec7m, \u0111ai \u1ed1c kh\u00f3a, \u1ed1c v\u00edt \u0111\u01b0\u1ee3c ph\u1ee7 ho\u1eb7c c\u1ee5m l\u1eafp r\u00e1p t\u00f9y ch\u1ec9nh d\u00e0nh ri\u00eang cho d\u1ef1 \u00e1n, h\u00e3y g\u1eedi b\u1ea3n v\u1ebd v\u00e0 \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 qua <a href=\"https:\/\/xzfastener.com\/vi\/home\/contact-us\/\">XZ Fastener Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>S\u1ef1 m\u00e0i m\u00f2n \u1edf c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng l\u00e0 do chuy\u1ec3n \u0111\u1ed9ng nh\u1ecf l\u1eb7p \u0111i l\u1eb7p l\u1ea1i gi\u1eefa c\u00e1c b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c k\u1eb9p. Gi\u1ea3i ph\u00e1p th\u1ef1c s\u1ef1 l\u00e0 ng\u0103n ch\u1eb7n chuy\u1ec3n \u0111\u1ed9ng \u0111\u00f3 th\u00f4ng qua t\u1ea3i tr\u01b0\u1edbc th\u00edch h\u1ee3p, l\u1ef1a ch\u1ecdn v\u00f2ng \u0111\u1ec7m, ki\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t, thi\u1ebft k\u1ebf m\u1ed1i n\u1ed1i v\u00e0 qu\u1ea3n l\u00fd \u0111\u1ed9 rung.<\/p>\n\n\n\n<p>Ch\u1ec9 m\u1ed9t bu-l\u00f4ng m\u1ea1nh h\u01a1n c\u00f3 th\u1ec3 kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 phi\u1ec1n to\u00e1i. Ch\u1ec9 m\u1ed9t l\u1edbp ph\u1ee7 t\u1ed1t h\u01a1n c\u0169ng kh\u00f4ng th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1. H\u1ec7 th\u1ed1ng bu\u1ed9c ch\u1eb7t ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 m\u1ed9t kh\u1edbp ho\u00e0n ch\u1ec9nh. Khi t\u1ea3i tr\u01b0\u1edbc, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t, gi\u00e1 \u0111\u1ee1 v\u00f2ng \u0111\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u00f3a \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t c\u00f9ng nhau, nguy c\u01a1 g\u00e2y phi\u1ec1n to\u00e1i s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fretting wear in bolted joints is a common problem in machinery, vehicles, wind power equipment, rail systems, pumps, compressors, and vibrating steel structures. It usually appears where two clamped surfaces move slightly against each other under load. The movement is small, but the damage can grow over time. At first, fretting may look like dark [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[492],"class_list":["post-7366","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-anti-loosening-vibration-resistance"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=7366"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7366\/revisions"}],"predecessor-version":[{"id":7367,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7366\/revisions\/7367"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}