{"id":1297,"date":"2026-02-24T08:27:31","date_gmt":"2026-02-24T08:27:31","guid":{"rendered":"https:\/\/www.wrapfilmtest.com\/?p=1297"},"modified":"2026-02-24T08:27:33","modified_gmt":"2026-02-24T08:27:33","slug":"plastic-tensile-strength-test","status":"publish","type":"post","link":"https:\/\/www.wrapfilmtest.com\/vi\/plastic-tensile-strength-test","title":{"rendered":"Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a nh\u1ef1a \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i"},"content":{"rendered":"

C\u00e1c Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a<\/strong> l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u nh\u1ef1a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u00f3ng g\u00f3i. Th\u1eed nghi\u1ec7m n\u00e0y cung c\u1ea5p d\u1eef li\u1ec7u qu\u00fd gi\u00e1 v\u1ec1 l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00e9o gi\u00e3n ho\u1eb7c l\u00e0m \u0111\u1ee9t c\u00e1c v\u1eadt li\u1ec7u nh\u1ef1a, \u0111\u1ea3m b\u1ea3o t\u00ednh ph\u00f9 h\u1ee3p c\u1ee7a ch\u00fang cho c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Th\u1eed nghi\u1ec7m k\u00e9o d\u00e0i<\/strong> l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng co gi\u00e3n c\u1ee7a v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i, do \u0111\u00f3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c ng\u00e0nh nh\u01b0 \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c ph\u1ea9m v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n\n\n\n

\"Th\u1eed<\/figure>\n\n\n\n

Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i<\/strong><\/h2>\n\n\n\n

Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1ch th\u1ee9c v\u1eadt li\u1ec7u d\u1ebbo s\u1ebd ph\u1ea3n \u1ee9ng khi ch\u1ecbu l\u1ef1c. \u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t<\/strong> \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 m\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 k\u00e9o gi\u00e3n tr\u01b0\u1edbc khi b\u1ecb \u0111\u1ee9t. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 M\u00e0ng co d\u00e3n \u0111\u00fac<\/strong> V\u00e0 B\u1ecdc pallet<\/strong>, v\u1ed1n ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c k\u00e9o gi\u00e3n v\u00e0 \u00e1p l\u1ef1c trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 x\u1eed l\u00fd.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e1nh gi\u00e1 li\u1ec7u v\u1eadt li\u1ec7u c\u00f3 gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh to\u00e0n v\u1eb9n hay b\u1ecb r\u00e1ch khi ch\u1ecbu l\u1ef1c k\u00e9o hay kh\u00f4ng. Ti\u00eau chu\u1ea9n ASTMD882<\/a><\/strong>, ph\u01b0\u01a1ng ph\u00e1p th\u1eed ti\u00eau chu\u1ea9n cho t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o<\/strong> l\u00e0m t\u1eeb t\u1ea5m nh\u1ef1a m\u1ecfng, t\u1ea1o th\u00e0nh khung \u0111\u1ec3 th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m n\u00e0y. Th\u00f4ng qua th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng co gi\u00e3n m\u00e0 kh\u00f4ng b\u1ecb \u0111\u1ee9t c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt mong mu\u1ed1n.<\/p>\n\n\n\n

ASTM D882: Ti\u00eau chu\u1ea9n th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o<\/strong><\/h2>\n\n\n\n

Ti\u00eau chu\u1ea9n ASTMD882<\/strong> l\u00e0 ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i nh\u1ea5t cho Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a<\/strong>. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y quy \u0111\u1ecbnh vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc k\u00e9o c\u1ee7a v\u1eadt li\u1ec7u nh\u1ef1a m\u1ecfng, bao g\u1ed3m \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 gi\u00e3n d\u00e0i v\u00e0 m\u00f4-\u0111un \u0111\u00e0n h\u1ed3i. Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh c\u00e1ch chu\u1ea9n b\u1ecb m\u1eabu th\u1eed, c\u00e1ch ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m v\u00e0 c\u00e1ch tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3.<\/p>\n\n\n\n

Trong Ti\u00eau chu\u1ea9n ASTMD882<\/strong> Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, c\u00e1c m\u1eabu nh\u1ef1a \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0o m\u00e1y th\u1eed c\u01a1 h\u1ecdc \u0111\u1ec3 t\u1ea1o l\u1ef1c k\u00e9o cho \u0111\u1ebfn khi v\u1eadt li\u1ec7u b\u1ecb \u0111\u1ee9t. L\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u00e0m \u0111\u1ee9t v\u1eadt li\u1ec7u v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i tr\u01b0\u1edbc khi v\u1eadt li\u1ec7u b\u1ecb h\u1ecfng \u0111\u01b0\u1ee3c ghi l\u1ea1i. D\u1eef li\u1ec7u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a m\u00e0ng nh\u1ef1a, l\u00e1 nh\u1ef1a v\u00e0 c\u00e1c v\u1eadt li\u1ec7u nh\u1ef1a m\u1ecfng kh\u00e1c.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m m\u00e0ng co d\u00e3n v\u00e0 m\u00e0ng b\u1ecdc pallet<\/strong><\/h2>\n\n\n\n

M\u00e0ng co d\u00e3n \u0111\u00fac<\/strong> V\u00e0 B\u1ecdc pallet<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f3ng g\u00f3i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong v\u1eadn chuy\u1ec3n h\u00e0ng h\u00f3a. C\u00e1c v\u1eadt li\u1ec7u n\u00e0y ph\u1ea3i \u0111\u1ee7 b\u1ec1n \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c v\u1ebft th\u1ee7ng, r\u00e1ch v\u00e0 c\u00e1c h\u00ecnh th\u1ee9c h\u01b0 h\u1ecfng kh\u00e1c khi b\u1ecb k\u00e9o c\u0103ng trong qu\u00e1 tr\u00ecnh qu\u1ea5n.<\/p>\n\n\n\n

C\u00e1c Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a<\/strong> \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u n\u00e0y bao g\u1ed3m vi\u1ec7c \u0111o l\u01b0\u1eddng l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00e9o gi\u00e3n v\u1eadt li\u1ec7u tr\u01b0\u1edbc khi n\u00f3 b\u1ecb \u0111\u1ee9t. Ngo\u00e0i ra, th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i<\/strong> l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u kh\u1ea3 n\u0103ng co gi\u00e3n v\u00e0 th\u00edch \u1ee9ng v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng kh\u00f4ng \u0111\u1ec1u c\u1ee7a v\u1eadt li\u1ec7u m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u1ee7a n\u00f3.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m cung c\u1ea5p th\u00f4ng tin qu\u00fd gi\u00e1 v\u1ec1 t\u00ednh n\u0103ng c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u n\u00e0y \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u1ea7n thi\u1ebft v\u1ec1 hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a bao b\u00ec. B\u1eb1ng c\u00e1ch \u0111\u00e1nh gi\u00e1 c\u1ea3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a v\u1eadt li\u1ec7u bao b\u00ec c\u1ee7a m\u00ecnh \u0111\u1ec3 b\u1ea3o v\u1ec7 s\u1ea3n ph\u1ea9m t\u1ed1t h\u01a1n trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 l\u01b0u kho.<\/p>\n\n\n\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o nh\u1ef1a trong ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/strong><\/h2>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i nh\u01b0 M\u00e0ng co d\u00e3n \u0111\u00fac<\/strong> V\u00e0 B\u1ecdc pallet<\/strong>, c\u00e1c Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a<\/strong> l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00f4ng t\u00e1c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng. Th\u1eed nghi\u1ec7m n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u00f3ng g\u00f3i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed v\u1ec1 t\u00ednh n\u0103ng c\u1ea7n thi\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng gi\u00e3n, \u0111\u1ee9t v\u00e0 r\u00e1ch khi ch\u1ecbu l\u1ef1c.<\/p>\n\n\n\n

C\u00e1c Th\u1eed nghi\u1ec7m k\u00e9o d\u00e0i<\/strong> c\u0169ng cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 \u0111\u1ed9 linh ho\u1ea1t c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u1ea3m b\u1ea3o r\u1eb1ng v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac c\u1ee7a n\u00f3. Vi\u1ec7c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean d\u1ef1a tr\u00ean c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 Ti\u00eau chu\u1ea9n ASTMD882<\/strong> \u0111\u1ea3m b\u1ea3o c\u00e1c v\u1eadt li\u1ec7u s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 mong \u0111\u1ee3i, mang \u0111\u1ebfn c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00f3ng g\u00f3i \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n

C\u00e1c Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a<\/strong> V\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i<\/strong> l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 Ti\u00eau chu\u1ea9n ASTMD882<\/strong> nh\u1edd c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 M\u00e0ng co d\u00e3n \u0111\u00fac<\/strong> V\u00e0 B\u1ecdc pallet<\/strong> \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 c\u1ee9ng. C\u00e1c th\u1eed nghi\u1ec7m n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap t\u1ed1i \u01b0u h\u00f3a v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o ch\u00fang ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf, mang l\u1ea1i s\u1ef1 b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n cho s\u1ea3n ph\u1ea9m trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 l\u01b0u kho.<\/p>\n\n\n\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ki\u1ec3m tra ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady, c\u00e1c doanh nghi\u1ec7p c\u00f3 th\u1ec3 tin t\u01b0\u1edfng v\u00e0o c\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m tra ti\u00ean ti\u1ebfn nh\u01b0 M\u00e1y th\u1eed \u0111\u1ed9 b\u1ec1n k\u00e9o Cell Instruments<\/strong>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p c\u00e1c k\u1ebft qu\u1ea3 \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c v\u1ec1 c\u1ea3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t cho v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i.<\/p>","protected":false},"excerpt":{"rendered":"

Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u1ef1a \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ee9c ch\u1ecbu l\u1ef1c c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u nh\u1ef1a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u00f3ng g\u00f3i. Th\u1eed nghi\u1ec7m n\u00e0y cung c\u1ea5p d\u1eef li\u1ec7u qu\u00fd gi\u00e1 v\u1ec1 l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00e9o gi\u00e3n ho\u1eb7c l\u00e0m \u0111\u1ee9t v\u1eadt li\u1ec7u nh\u1ef1a, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o t\u00ednh ph\u00f9 h\u1ee3p c\u1ee7a ch\u00fang cho c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. 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