{"id":9312,"date":"2026-02-02T11:24:03","date_gmt":"2026-02-02T03:24:03","guid":{"rendered":"https:\/\/www.packqc.com\/applications\/trouser-tear-test\/"},"modified":"2026-03-16T16:24:19","modified_gmt":"2026-03-16T08:24:19","slug":"trouser-tear-test","status":"publish","type":"applications","link":"https:\/\/www.packqc.com\/vi\/applications\/trouser-tear-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m r\u00e1ch qu\u1ea7n"},"content":{"rendered":"

C\u00e1c Ti\u00eau chu\u1ea9n ASTMD1938<\/strong><\/a> Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m l\u00e0 ti\u00eau chu\u1ea9n quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 Kh\u1ea3 n\u0103ng ch\u1ed1ng lan truy\u1ec1n v\u1ebft n\u1ee9t<\/strong> c\u1ee7a m\u00e0ng nh\u1ef1a v\u00e0 t\u1ea5m m\u1ecfng. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Th\u1eed nghi\u1ec7m r\u00e1ch qu\u1ea7n<\/strong>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra v\u1ebft r\u00e1ch tr\u00ean v\u1eadt li\u1ec7u nh\u1ef1a, cung c\u1ea5p th\u00f4ng tin qu\u00fd gi\u00e1 v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y bao g\u1ed3m vi\u1ec7c \u00e1p d\u1ee5ng m\u1ed9t Ph\u01b0\u01a1ng ph\u00e1p m\u1ed9t l\u1ea7n x\u00e9<\/strong>, n\u01a1i m\u1ed9t v\u1ebft r\u00e1ch \u0111\u01b0\u1ee3c t\u1ea1o ra tr\u00ean v\u1eadt li\u1ec7u, v\u00e0 l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 lan truy\u1ec1n v\u1ebft r\u00e1ch \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u00e1y t\u00e1ch v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh. \u0110\u00e2y l\u00e0 m\u1ed9t th\u1eed nghi\u1ec7m quan tr\u1ecdng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, nh\u01b0 \u0111\u00f3ng g\u00f3i, th\u1ef1c ph\u1ea9m v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf, n\u01a1i kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng h\u00e0ng \u0111\u1ea7u.<\/p>\n\n\n\n

C\u01a1 b\u1ea3n v\u1ec1 b\u00e0i ki\u1ec3m tra r\u00e1ch qu\u1ea7n<\/h2>\n\n\n\n

C\u00e1c Th\u1eed nghi\u1ec7m r\u00e1ch qu\u1ea7n<\/strong> Quy tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c k\u1eb9p m\u1ed9t m\u00e0ng nh\u1ef1a ho\u1eb7c t\u1ea5m m\u1ecfng b\u1eb1ng hai k\u1eb9p c\u00f3 m\u1ed9t v\u1ebft c\u1eaft s\u1eb5n \u1edf gi\u1eefa v\u1eadt li\u1ec7u. C\u00e1c k\u1eb9p \u0111\u01b0\u1ee3c t\u00e1ch ra v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh, khi\u1ebfn v\u1ebft r\u00e1ch lan truy\u1ec1n qua v\u1eadt li\u1ec7u. L\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 ti\u1ebfp t\u1ee5c v\u1ebft r\u00e1ch \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng, cung c\u1ea5p th\u00f4ng tin v\u1ec1... \u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a m\u00e0ng nh\u1ef1a<\/strong>.<\/p>\n\n\n\n

C\u00e1c Kh\u1ea3 n\u0103ng ch\u1ed1ng lan truy\u1ec1n v\u1ebft n\u1ee9t<\/strong> \u0110i\u1ec1u n\u00e0y c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng trong vi\u1ec7c hi\u1ec3u m\u1ee9c \u0111\u1ed9 kh\u00e1ng r\u00e1ch c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng cho vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, nh\u01b0 h\u00e0ng r\u00e0o b\u1ea3o v\u1ec7, bao b\u00ec ho\u1eb7c m\u00e0ng y t\u1ebf.<\/p>\n\n\n\n

C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u00e0i ki\u1ec3m tra ASTM D1938<\/h2>\n\n\n\n

Quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc:<\/strong><\/h3>\n\n\n\n
    \n
  1. Chu\u1ea9n b\u1ecb m\u1eabu<\/strong>M\u1ed9t v\u1ebft c\u1eaft \u0111\u01b0\u1ee3c t\u1ea1o ra \u1edf v\u1ecb tr\u00ed trung t\u00e2m tr\u00ean m\u1eabu th\u1eed, t\u1ea1o th\u00e0nh hai ch\u00e2n. Hai ch\u00e2n n\u00e0y \u0111\u01b0\u1ee3c k\u1eb9p b\u1edfi m\u1ed9t m\u00e1y, v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c k\u1eb9p \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i.<\/li>\n\n\n\n
  2. T\u00e1ch bi\u1ec7t v\u00e0 \u0110o l\u01b0\u1eddng<\/strong>Th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch li\u00ean t\u1ee5c t\u00e1ch c\u00e1c m\u1ea5u k\u1eb9p, v\u00e0 l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 lan truy\u1ec1n v\u1ebft r\u00e1ch \u0111\u01b0\u1ee3c ghi l\u1ea1i trong su\u1ed1t qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n
  3. K\u1ebft qu\u1ea3 ki\u1ec3m tra<\/strong>D\u1eef li\u1ec7u th\u1eddi gian t\u1ea3i \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh x\u00e1c \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u. Kh\u1ea3 n\u0103ng ch\u1ed1ng lan truy\u1ec1n v\u1ebft n\u1ee9t<\/strong>, \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb l\u1ef1c \u0111o \u0111\u01b0\u1ee3c v\u00e0 kho\u1ea3ng c\u00e1ch t\u00e1ch r\u1eddi c\u1ee7a k\u1eb9p.<\/li>\n<\/ol>\n\n\n\n

    C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3:<\/strong><\/h3>\n\n\n\n