{"id":7325,"date":"2024-10-10T02:20:28","date_gmt":"2024-10-09T18:20:28","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7325"},"modified":"2026-06-24T02:21:41","modified_gmt":"2026-06-23T18:21:41","slug":"impact-testing-for-low-temperature-fasteners-what-buyers-should-know","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/impact-testing-for-low-temperature-fasteners-what-buyers-should-know\/","title":{"rendered":"Ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng \u0111\u1ed1i v\u1edbi \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 th\u1ea5p: Nh\u1eefng \u0111i\u1ec1u ng\u01b0\u1eddi mua n\u00ean bi\u1ebft"},"content":{"rendered":"<p>Th\u1eed nghi\u1ec7m va \u0111\u1eadp \u0111\u1ed1i v\u1edbi \u1ed1c v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c minh \u0111\u1ed9 b\u1ec1n ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u1ed9 b\u1ec1n. \u0110i\u1ec1u n\u00e0y quan tr\u1ecdng v\u00ec bu l\u00f4ng, \u0111inh t\u00e1n, \u0111ai \u1ed1c, \u1ed1c v\u00edt v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn neo c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng kh\u00e1c khi l\u00e0m vi\u1ec7c \u1edf nhi\u1ec7t \u0111\u1ed9 l\u1ea1nh so v\u1edbi khi \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng.<\/p>\n\n\n\n<p>Chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 c\u1ee9ng nh\u01b0ng v\u1eabn kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi t\u00e1c \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p ho\u1eb7c t\u1ea3i s\u1ed1c. Trong m\u00f4i tr\u01b0\u1eddng l\u1ea1nh, \u0111\u1ed9 b\u1ec1n kh\u00f4ng \u0111\u1ee7 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn g\u00e3y x\u01b0\u01a1ng gi\u00f2n m\u00e0 \u00edt c\u00f3 d\u1ea5u hi\u1ec7u b\u00e1o tr\u01b0\u1edbc.<\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ng\u01b0\u1eddi mua n\u00ean coi th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng nh\u01b0 m\u1ed9t y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n ch\u1ee9 kh\u00f4ng ph\u1ea3i y\u00eau c\u1ea7u t\u00e0i li\u1ec7u v\u00e0o ph\u00fat cu\u1ed1i.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 t\u1ea3i tr\u1ecdng cao v\u00e0 d\u00e0nh cho d\u1ef1 \u00e1n, h\u00e3y xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/standard-fasteners\/\">\u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng l\u1ea1i quan tr\u1ecdng<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 d\u1ebbo dai ki\u1ec3m so\u00e1t h\u00e0nh vi g\u00e3y x\u01b0\u01a1ng<\/h3>\n\n\n\n<p>Th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng \u0111o l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng m\u00e0 v\u1eadt li\u1ec7u h\u1ea5p th\u1ee5 khi b\u1ecb va ch\u1ea1m \u0111\u1ed9t ng\u1ed9t. Trong d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, n\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5 th\u01b0\u1eddng gi\u1ea3m. M\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p c\u00f3 th\u1ec3 chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i d\u1ebbo sang tr\u1ea1ng th\u00e1i gi\u00f2n khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng.<\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y quan tr\u1ecdng \u1edf ch\u1ed7:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u01b0\u1eddng \u1ed1ng \u0111\u00f4ng l\u1ea1nh v\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/li>\n\n\n\n<li>C\u01a1 s\u1edf kh\u00ed \u0111\u1ed1t v\u00e0 LNG.<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb ngo\u00e0i kh\u01a1i.<\/li>\n\n\n\n<li>K\u1ebft c\u1ea5u th\u00e9p v\u00f9ng l\u1ea1nh.<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng l\u1ea1nh.<\/li>\n\n\n\n<li>Khai th\u00e1c m\u1ecf v\u00e0 m\u00e1y m\u00f3c ngo\u00e0i tr\u1eddi.<\/li>\n\n\n\n<li>B\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch v\u00e0 ph\u1ee5 ki\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Property<\/th><th>Nh\u1eefng g\u00ec n\u00f3 hi\u1ec3n th\u1ecb<\/th><th>Limitation<\/th><\/tr><\/thead><tbody><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>S\u1ee9c k\u00e9o t\u1ed1i \u0111a<\/td><td>Kh\u00f4ng ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u1ebbo dai \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/td><\/tr><tr><td>S\u1ee9c m\u1ea1nh n\u0103ng su\u1ea5t<\/td><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n<\/td><td>Kh\u00f4ng ph\u1ea3i l\u00e0 k\u1ebft qu\u1ea3 t\u00e1c \u0111\u1ed9ng<\/td><\/tr><tr><td>Hardness<\/td><td>\u0110i\u1ec1u ki\u1ec7n x\u1eed l\u00fd nhi\u1ec7t<\/td><td>\u0110\u1ed9 c\u1ee9ng cao c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo dai<\/td><\/tr><tr><td>Elongation<\/td><td>\u0110\u1ed9 d\u1ebbo khi t\u1ea3i ch\u1eadm<\/td><td>Kh\u00f4ng gi\u1ed1ng nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng s\u1ed1c<\/td><\/tr><tr><td>N\u0103ng l\u01b0\u1ee3ng t\u00e1c \u0111\u1ed9ng<\/td><td>\u0110\u1ed9 d\u1ebbo dai khi t\u1ea3i \u0111\u1ed9t ng\u1ed9t<\/td><td>Ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra \u1edf nhi\u1ec7t \u0111\u1ed9 y\u00eau c\u1ea7u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Kh\u00f4ng s\u1eed d\u1ee5ng k\u1ebft qu\u1ea3 ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o \u0111\u1ec3 thay th\u1ebf cho ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng khi d\u1ef1 \u00e1n ch\u1ec9 \u0111\u1ecbnh d\u1ecbch v\u1ee5 ngu\u1ed9i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng chung<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Charpy V-Nott l\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o th\u00f4ng th\u01b0\u1eddng<\/h3>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng Charpy. M\u1ed9t m\u1eabu c\u00f3 kh\u00eda \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m quy \u0111\u1ecbnh, sau \u0111\u00f3 b\u1ecb ph\u00e1 v\u1ee1 b\u1eb1ng m\u00e1y t\u00e1c \u0111\u1ed9ng con l\u1eafc. N\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c ghi l\u1ea1i.<\/p>\n\n\n\n<p>C\u00e1c t\u00e0i li\u1ec7u tham kh\u1ea3o ph\u1ed5 bi\u1ebfn bao g\u1ed3m ASTM E23 v\u00e0 ISO 148-1. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n c\u0169ng c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m, k\u00edch th\u01b0\u1edbc m\u1eabu, h\u01b0\u1edbng, gi\u00e1 tr\u1ecb n\u0103ng l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u v\u00e0 \u0111\u1ecbnh d\u1ea1ng b\u00e1o c\u00e1o.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Chi ti\u1ebft ki\u1ec3m tra<\/th><th>Ng\u01b0\u1eddi Mua Ph\u1ea3i X\u00e1c Nh\u1eadn<\/th><\/tr><\/thead><tbody><tr><td>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed<\/td><td>ASTM E23, ISO 148-1, ho\u1eb7c ti\u00eau chu\u1ea9n d\u1ef1 \u00e1n<\/td><\/tr><tr><td>Ki\u1ec3u kh\u00eda<\/td><td>V- Notch ho\u1eb7c U- Notch n\u1ebfu \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m<\/td><td>T\u01b0\u01a1ng t\u1ef1 nh\u01b0 y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n, ch\u1eb3ng h\u1ea1n nh\u01b0 -20\u00b0C, -46\u00b0C, ho\u1eb7c th\u1ea5p h\u01a1n<\/td><\/tr><tr><td>N\u0103ng l\u01b0\u1ee3ng t\u00e1c \u0111\u1ed9ng t\u1ed1i thi\u1ec3u<\/td><td>Gi\u00e1 tr\u1ecb n\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5 c\u1ea7n thi\u1ebft<\/td><\/tr><tr><td>K\u00edch th\u01b0\u1edbc m\u1eabu v\u1eadt<\/td><td>M\u1eabu v\u1eadt c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c k\u00edch th\u01b0\u1edbc ph\u1ee5<\/td><\/tr><tr><td>V\u1ecb tr\u00ed m\u1eabu<\/td><td>Thanh, bu l\u00f4ng, ch\u1ed1t ho\u1eb7c l\u00f4 s\u1ea3n xu\u1ea5t theo y\u00eau c\u1ea7u<\/td><\/tr><tr><td>Ch\u1ee9ng ch\u1ec9<\/td><td>S\u1ed1 nhi\u1ec7t v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c l\u00f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>N\u1ebfu chi ti\u1ebft si\u1ebft ch\u1eb7t qu\u00e1 nh\u1ecf \u0111\u1ed1i v\u1edbi m\u1eabu c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u1ea7y \u0111\u1ee7, ng\u01b0\u1eddi mua v\u00e0 k\u1ef9 s\u01b0 ph\u1ea3i x\u00e1c nh\u1eadn xem th\u1eed nghi\u1ec7m k\u00edch th\u01b0\u1edbc ph\u1ee5, th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u g\u1ed1c ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t kh\u00e1c c\u00f3 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn hay kh\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t cho d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng \u0111\u00fang ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u<\/h3>\n\n\n\n<p>C\u00e1c \u1ed1c v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p ph\u1ea3i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh theo ti\u00eau chu\u1ea9n v\u00e0 c\u1ea5p \u0111\u1ed9 th\u00edch h\u1ee3p. ASTM A320\/A320M th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho v\u1eadt li\u1ec7u bu l\u00f4ng b\u1eb1ng th\u00e9p h\u1ee3p kim v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ee5c v\u1ee5 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong b\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch v\u00e0 ph\u1ee5 ki\u1ec7n.<\/p>\n\n\n\n<p>C\u00e1c v\u00ed d\u1ee5 ph\u1ed5 bi\u1ebfn bao g\u1ed3m ASTM A320 L7, L43, v\u00e0 c\u00e1c lo\u1ea1i kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng. Lo\u1ea1i ch\u00ednh x\u00e1c ph\u1ea3i d\u1ef1a tr\u00ean \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n, kh\u00f4ng ch\u1ec9 d\u1ef1a tr\u00ean vi\u1ec7c so s\u00e1nh gi\u00e1 c\u1ea3.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Y\u00eau c\u1ea7u chi ti\u1ebft si\u1ebft ch\u1eb7t<\/th><th>Ki\u1ec3m tra ng\u01b0\u1eddi mua \u0111i\u1ec3n h\u00ecnh<\/th><\/tr><\/thead><tbody><tr><td>Th\u00e9p h\u1ee3p kim nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/td><td>Confirm ASTM A320 grade<\/td><\/tr><tr><td>Bu l\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9<\/td><td>X\u00e1c nh\u1eadn c\u1ea5p, h\u1ea1ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 d\u1ecbch v\u1ee5<\/td><\/tr><tr><td>Bu l\u00f4ng m\u1eb7t b\u00edch<\/td><td>Ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a \u0111\u01b0\u1eddng \u1ed1ng, van ho\u1eb7c m\u1eb7t b\u00edch<\/td><\/tr><tr><td>D\u1ecbch v\u1ee5 l\u1ea1nh k\u1ebft c\u1ea5u<\/td><td>Tu\u00e2n theo m\u00e3 d\u1ef1 \u00e1n v\u00e0 ph\u00ea duy\u1ec7t k\u1ef9 s\u01b0<\/td><\/tr><tr><td>Chi ti\u1ebft si\u1ebft ch\u1eb7t t\u00f9y ch\u1ec9nh<\/td><td>X\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng v\u00e0 ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ec3 so s\u00e1nh ch\u1ea5t li\u1ec7u, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem l\u1ea1i XZ Fastener <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>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u ng\u01b0\u1eddi mua th\u01b0\u1eddng b\u1ecf l\u1ee1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng kh\u00f4ng t\u1ef1 \u0111\u1ed9ng<\/h3>\n\n\n\n<p>\u0110\u1eebng cho r\u1eb1ng m\u1ecdi chi ti\u1ebft si\u1ebft ch\u1eb7t c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u1ec1u bao g\u1ed3m vi\u1ec7c ki\u1ec3m tra va \u0111\u1eadp. C\u00e1c bu l\u00f4ng 8.8, 10.9 ho\u1eb7c 12.9 ti\u00eau chu\u1ea9n kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng ki\u1ec3m tra va \u0111\u1eadp \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p tr\u1eeb khi ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh, \u0111\u01a1n \u0111\u1eb7t h\u00e0ng ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n<p>Nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ch\u1ec9 y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 c\u1ee9ng.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng sau khi s\u1ea3n xu\u1ea5t.<\/li>\n\n\n\n<li>Kh\u00f4ng n\u00eau r\u00f5 nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n<li>Ch\u1ea5p nh\u1eadn ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb t\u00e1c \u0111\u1ed9ng.<\/li>\n\n\n\n<li>Tr\u1ed9n r\u1ea5t nhi\u1ec1u m\u00e0 kh\u00f4ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng l\u1edbp thay th\u1ebf m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ch\u1ea5p thu\u1eadn c\u1ee7a k\u1ef9 s\u01b0.<\/li>\n\n\n\n<li>B\u1ecf qua l\u1edbp ph\u1ee7 v\u00e0 nguy c\u01a1 gi\u00f2n do hydro.<\/li>\n<\/ol>\n\n\n\n<p>Vi\u1ec7c th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng ph\u1ea3i \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t ho\u1eb7c c\u1eaft nguy\u00ean li\u1ec7u, \u0111\u1eb7c bi\u1ec7t khi c\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t l\u01b0\u1ee3ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">R\u1ee7i ro v\u1ec1 l\u1edbp ph\u1ee7 v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1ecbch v\u1ee5 l\u1ea1nh v\u1eabn c\u1ea7n b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/h3>\n\n\n\n<p>C\u00e1c \u1ed1c v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p th\u01b0\u1eddng l\u00e0m vi\u1ec7c ngo\u00e0i tr\u1eddi, ngo\u00e0i kh\u01a1i ho\u1eb7c trong c\u00e1c nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn. L\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c g\u00e2y ra nh\u1eefng r\u1ee7i ro m\u1edbi.<\/p>\n\n\n\n<p>M\u1ea1 \u0111i\u1ec7n tr\u00ean th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao c\u00f3 th\u1ec3 l\u00e0m t\u0103ng m\u1ed1i lo ng\u1ea1i v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng gi\u00f2n do hydro n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u00fang c\u00e1ch. M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 kh\u00edt c\u1ee7a ren. PTFE l\u1edbp ph\u1ee7 thay \u0111\u1ed5i h\u00e0nh vi ma s\u00e1t v\u00e0 m\u00f4-men xo\u1eafn. L\u1edbp ph\u1ee7 v\u1ea3y k\u1ebdm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t khi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 gi\u00f2n l\u00e0 quan tr\u1ecdng.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>K\u1ebft th\u00fac<\/th><th>M\u1ed1i quan t\u00e2m c\u1ee7a ng\u01b0\u1eddi mua<\/th><\/tr><\/thead><tbody><tr><td>M\u1ea1 k\u1ebdm<\/td><td>Ki\u1ec3m so\u00e1t \u0111\u1ed9 gi\u00f2n hydro cho c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 \u0111\u1ed9 b\u1ec1n cao<\/td><\/tr><tr><td>M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/td><td>Ph\u1ee5 c\u1ea5p ren v\u00e0 \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7<\/td><\/tr><tr><td>PTFE l\u1edbp ph\u1ee7<\/td><td>Thay \u0111\u1ed5i m\u00f4 men xo\u1eafn v\u00e0 gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9<\/td><\/tr><tr><td>v\u1ea3y k\u1ebdm<\/td><td>Y\u00eau c\u1ea7u ph\u00ea duy\u1ec7t v\u00e0 \u0103n m\u00f2n quy tr\u00ecnh<\/td><\/tr><tr><td>Th\u1ee5 \u0111\u1ed9ng kh\u00f4ng g\u1ec9<\/td><td>\u0110\u00fang lo\u1ea1i kh\u00f4ng g\u1ec9 v\u1eabn c\u00f2n quan tr\u1ecdng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ec3 l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7, h\u00e3y xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/teflon-coating\/\">PTFE l\u1edbp ph\u1ee7<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra cho c\u00e1c \u1ed1c v\u00edt \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m va \u0111\u1eadp<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Bao g\u1ed3m c\u00e1c chi ti\u1ebft n\u00e0y tr\u01b0\u1edbc khi b\u00e1o gi\u00e1<\/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, k\u00edch th\u01b0\u1edbc, ti\u00eau chu\u1ea9n v\u00e0 b\u1ea3n v\u1ebd.<\/li>\n\n\n\n<li>C\u1ea5p v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 thi\u1ebft k\u1ebf ho\u1eb7c d\u1ecbch v\u1ee5 t\u1ed1i thi\u1ec3u.<\/li>\n\n\n\n<li>Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 ASTM E23 ho\u1eb7c ISO 148-1.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n<li>Gi\u00e1 tr\u1ecb n\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5 t\u1ed1i thi\u1ec3u<\/li>\n\n\n\n<li>C\u1ee1 m\u1eabu v\u00e0 y\u00eau c\u1ea7u l\u1ea5y m\u1eabu.<\/li>\n\n\n\n<li>S\u1ed1 nhi\u1ec7t v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c l\u00f4.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 \u0111ai \u1ed1c, v\u00f2ng \u0111\u1ec7m v\u00e0 l\u1eafp r\u00e1p.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 gi\u00f2n.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 ch\u1ee9ng ch\u1ec9, ch\u1eb3ng h\u1ea1n nh\u01b0 MTC ho\u1eb7c EN 10204 3.1.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u ki\u1ec3m tra c\u1ee7a b\u00ean th\u1ee9 ba n\u1ebfu c\u00f3.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ed1c v\u00edt d\u1ecbch v\u1ee5 ngu\u1ed9i t\u00f9y ch\u1ec9nh, h\u00e3y g\u1eedi b\u1ea3n v\u1ebd, ti\u00eau chu\u1ea9n v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u00f4ng 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>Th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng \u0111\u1ed1i v\u1edbi \u1ed1c v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p nh\u1eb1m x\u00e1c minh \u0111\u1ed9 b\u1ec1n khi ch\u1ecbu t\u1ea3i \u0111\u1ed9t ng\u1ed9t \u1edf nhi\u1ec7t \u0111\u1ed9 x\u00e1c \u0111\u1ecbnh. N\u00f3 kh\u00f4ng thay th\u1ebf vi\u1ec7c ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o, ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng, ki\u1ec3m tra k\u00edch th\u01b0\u1edbc ho\u1eb7c x\u00e1c minh l\u1edbp ph\u1ee7.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c chi ti\u1ebft l\u1eafp ch\u1eb7t trong nh\u00e0 th\u00f4ng th\u01b0\u1eddng, c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n th\u1eed va \u0111\u1eadp. \u0110\u1ed1i v\u1edbi c\u00e1c k\u1ebft c\u1ea5u v\u00f9ng l\u1ea1nh, h\u1ec7 th\u1ed1ng LNG, thi\u1ebft b\u1ecb ngo\u00e0i kh\u01a1i, b\u00ecnh \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch, ph\u1ee5 ki\u1ec7n v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p kh\u00e1c, c\u1ea7n x\u00e1c \u0111\u1ecbnh \u1edf giai \u0111o\u1ea1n RFQ.<\/p>\n\n\n\n<p>Quy t\u1eafc mua h\u00e0ng an to\u00e0n nh\u1ea5t l\u00e0 tr\u1ef1c ti\u1ebfp: ch\u1ec9 \u0111\u1ecbnh lo\u1ea1i v\u1eadt li\u1ec7u, nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng, ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m, y\u00eau c\u1ea7u v\u1ec1 n\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5, ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng. \u0110\u00f3 l\u00e0 c\u00e1ch ng\u01b0\u1eddi mua tr\u00e1nh \u0111\u01b0\u1ee3c r\u1ee7i ro g\u00e3y x\u01b0\u01a1ng gi\u00f2n v\u00e0 ghi l\u1ea1i c\u00e1c v\u1ea5n \u0111\u1ec1 sau khi v\u1eadn chuy\u1ec3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Impact testing for low-temperature fasteners is used to verify toughness, not just strength. This matters because bolts, studs, nuts, screws, and anchor components may behave differently in cold service than they do at room temperature. A fastener can meet tensile strength and hardness requirements but still be unsuitable for low-temperature impact or shock loading. In [&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":[509],"class_list":["post-7325","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-quality-inspection-testing"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7325","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=7325"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7325\/revisions"}],"predecessor-version":[{"id":7326,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7325\/revisions\/7326"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}