{"id":2677,"date":"2024-08-06T03:54:04","date_gmt":"2024-08-06T03:54:04","guid":{"rendered":"https:\/\/www.packqc.com\/?p=2677"},"modified":"2025-09-12T09:31:38","modified_gmt":"2025-09-12T01:31:38","slug":"cof-testing-for-films-methods-and-standards","status":"publish","type":"post","link":"https:\/\/www.packqc.com\/vi\/cof-testing-for-films-methods-and-standards\/","title":{"rendered":"Hi\u1ec3u v\u1ec1 th\u1eed nghi\u1ec7m COF cho phim: Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 ti\u00eau chu\u1ea9n"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2677\" class=\"elementor elementor-2677\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a4cebd1 e-flex e-con-boxed e-con e-parent\" data-id=\"a4cebd1\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d1705d elementor-widget elementor-widget-heading\" data-id=\"6d1705d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Hi\u1ec3u v\u1ec1 th\u1eed nghi\u1ec7m COF cho phim: Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 ti\u00eau chu\u1ea9n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55bde6c elementor-widget elementor-widget-text-editor\" data-id=\"55bde6c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Gi\u1edbi thi\u1ec7u v\u1ec1 th\u1eed nghi\u1ec7m COF cho phim<\/h2><p>H\u1ec7 s\u1ed1 ma s\u00e1t (COF) l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng trong th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi m\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong bao b\u00ec, thi\u1ebft b\u1ecb y t\u1ebf, d\u01b0\u1ee3c ph\u1ea9m, ch\u1ea5t k\u1ebft d\u00ednh v\u00e0 h\u00e0ng d\u1ec7t may. Th\u1eed nghi\u1ec7m COF \u0111o l\u1ef1c c\u1ea3n g\u1eb7p ph\u1ea3i khi hai b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t v\u00e0o nhau, cung c\u1ea5p d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng, t\u1ed1i \u01b0u h\u00f3a s\u1ea3n xu\u1ea5t v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh.<\/p><h2>Hi\u1ec3u v\u1ec1 th\u1eed nghi\u1ec7m COF<\/h2><p>Ki\u1ec3m tra COF \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i ch\u00ednh:<\/p><ul><li><strong>COF t\u0129nh<\/strong>: L\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa hai b\u1ec1 m\u1eb7t.<\/li><li><strong>COF \u0111\u1ed9ng h\u1ecdc<\/strong>: L\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa hai b\u1ec1 m\u1eb7t.<\/li><\/ul><p>C\u1ea3 hai ph\u00e9p \u0111o \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a m\u00e0ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p><h2>Ti\u00eau chu\u1ea9n ASTM D1894 v\u00e0 ISO 8295<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbb4dc5 elementor-widget elementor-widget-video\" data-id=\"cbb4dc5\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/NUgXENOz8J0&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;play_on_mobile&quot;:&quot;yes&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fffc37e elementor-widget elementor-widget-text-editor\" data-id=\"fffc37e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Ti\u00eau chu\u1ea9n ASTMD1894<\/h3><p><a style=\"text-align: var(--text-align); font-size: 1rem;\" href=\"https:\/\/www.packqc.com\/vi\/product-category\/astm-standard\/astm-d1894\/\" target=\"_blank\" rel=\"noopener\">Ti\u00eau chu\u1ea9n ASTMD1894<\/a>\u00a0l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i \u0111\u1ec3 \u0111o COF c\u1ee7a m\u00e0ng nh\u1ef1a v\u00e0 t\u1ea5m nh\u1ef1a. Ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng nh\u1ea5t, \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c gi\u1eefa c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p><h4><strong>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m:<\/strong><\/h4><ol><li><strong>Chu\u1ea9n b\u1ecb m\u1eabu<\/strong>: C\u1eaft m\u1eabu th\u00e0nh c\u00e1c d\u1ea3i v\u00e0 x\u1eed l\u00fd ch\u00fang theo quy \u0111\u1ecbnh.<\/li><li><strong>Thi\u1ebft l\u1eadp th\u1eed nghi\u1ec7m<\/strong>: \u0110\u1eb7t phim l\u00ean m\u1eb7t ph\u1eb3ng n\u1eb1m ngang, k\u00e9o m\u1ed9t t\u1ea5m v\u00e1n tr\u01b0\u1ee3t ph\u1ee7 c\u00f9ng lo\u1ea1i v\u1eadt li\u1ec7u ho\u1eb7c v\u1eadt li\u1ec7u kh\u00e1c tr\u00ean m\u1eb7t ph\u1eb3ng v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i.<\/li><li><strong>\u0110o l\u01b0\u1eddng<\/strong>: Ghi l\u1ea1i c\u00e1c l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u v\u00e0 duy tr\u00ec chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh COF t\u0129nh v\u00e0 \u0111\u1ed9ng.<\/li><\/ol><h4><strong>Y\u00eau c\u1ea7u:<\/strong><\/h4><ul><li><strong>S\u1ef1 \u0111\u1ecbnh c\u1ee1<\/strong>:Vi\u1ec7c hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb th\u01b0\u1eddng xuy\u00ean l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/li><li><strong>T\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m<\/strong>: Th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf m\u1ee9c 150 mm\/ph\u00fat.<\/li><li><strong>\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/strong>: Ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/li><\/ul><h3>Ti\u00eau chu\u1ea9n ISO8295<\/h3><p><a style=\"text-align: var(--text-align); font-size: 1rem;\" href=\"https:\/\/www.packqc.com\/vi\/product-category\/iso\/iso-8295\/\" target=\"_blank\" rel=\"noopener\">Ti\u00eau chu\u1ea9n ISO8295<\/a>\u00a0l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh COF c\u1ee7a m\u00e0ng v\u00e0 t\u1ea5m nh\u1ef1a, \u0111\u1ea3m b\u1ea3o quy tr\u00ecnh th\u1eed nghi\u1ec7m th\u1ed1ng nh\u1ea5t v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n tr\u00ean to\u00e0n c\u1ea7u.<\/p><h4><strong>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m:<\/strong><\/h4><ol><li><strong>Chu\u1ea9n b\u1ecb m\u1eabu<\/strong>: Chu\u1ea9n b\u1ecb v\u00e0 x\u1eed l\u00fd m\u1eabu t\u01b0\u01a1ng t\u1ef1 nh\u01b0 ASTM D1894.<\/li><li><strong>Thi\u1ebft l\u1eadp th\u1eed nghi\u1ec7m<\/strong>: \u0110\u1eb7t m\u1eabu tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t ph\u1eb3ng, k\u00e9o m\u1ed9t chi\u1ebfc xe tr\u01b0\u1ee3t c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng x\u00e1c \u0111\u1ecbnh qua m\u1eabu v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i.<\/li><li><strong>\u0110o l\u01b0\u1eddng<\/strong>: \u0110o l\u1ef1c ma s\u00e1t t\u0129nh v\u00e0 l\u1ef1c ma s\u00e1t \u0111\u1ed9ng \u0111\u1ec3 t\u00ednh COF.<\/li><\/ol><h4><strong>Y\u00eau c\u1ea7u:<\/strong><\/h4><ul><li><strong>T\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m<\/strong>: C\u00e0i \u0111\u1eb7t trong kho\u1ea3ng 100 \u0111\u1ebfn 300 mm\/ph\u00fat, th\u00f4ng th\u01b0\u1eddng l\u00e0 100 mm\/ph\u00fat.<\/li><li><strong>Tr\u1ecdng l\u01b0\u1ee3ng xe tr\u01b0\u1ee3t tuy\u1ebft<\/strong>: \u0110\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh theo ti\u00eau chu\u1ea9n.<\/li><li><strong>\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/strong>: Th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m trong \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i.<\/li><\/ul><h2>\u1ee8ng d\u1ee5ng c\u1ee7a th\u1eed nghi\u1ec7m COF<\/h2><h3><strong>V\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i<\/strong><\/h3><p>Trong ng\u00e0nh bao b\u00ec, th\u1eed nghi\u1ec7m COF \u0111\u1ea3m b\u1ea3o r\u1eb1ng v\u1eadt li\u1ec7u kh\u00f4ng d\u00ednh v\u00e0o nhau qu\u00e1 nhi\u1ec1u ho\u1eb7c kh\u00f4ng d\u1ec5 d\u00e0ng t\u00e1ch ra, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a bao b\u00ec.<\/p><h3><strong>Y t\u1ebf v\u00e0 D\u01b0\u1ee3c ph\u1ea9m<\/strong><\/h3><p>\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 bao b\u00ec d\u01b0\u1ee3c ph\u1ea9m, vi\u1ec7c ki\u1ec3m so\u00e1t COF r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n, ch\u1ee9c n\u0103ng v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh.<\/p><h3><strong>D\u1ec7t may v\u00e0 ch\u1ea5t k\u1ebft d\u00ednh<\/strong><\/h3><p>Trong h\u00e0ng d\u1ec7t may, COF \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3m gi\u00e1c v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a v\u1ea3i. \u0110\u1ed1i v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh, n\u00f3 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft v\u00e0 kh\u1ea3 n\u0103ng d\u1ec5 s\u1eed d\u1ee5ng.<\/p><h2>Thi\u1ebft b\u1ecb ki\u1ec3m tra COF t\u1eeb Cell Instruments<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55e87da elementor-widget elementor-widget-image\" data-id=\"55e87da\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.packqc.com\/vi\/product\/coefficient-of-friction-testing-equipment\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.packqc.com\/wp-content\/uploads\/elementor\/thumbs\/ASTM-D1894-COF-testing-for-films-coefficient-of-friction-plastic-on-plastic-ISO-8295-qs6ylneon3q219ukr5115ggziujtnqsejws8fhhncg.jpg\" title=\"ASTM D1894 Ki\u1ec3m tra COF cho m\u00e0ng h\u1ec7 s\u1ed1 ma s\u00e1t nh\u1ef1a tr\u00ean nh\u1ef1a ISO 8295\" alt=\"ASTM D1894 Ki\u1ec3m tra COF cho m\u00e0ng h\u1ec7 s\u1ed1 ma s\u00e1t nh\u1ef1a tr\u00ean nh\u1ef1a ISO 8295\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba9252e elementor-widget elementor-widget-text-editor\" data-id=\"ba9252e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>T\u1ea1i Cell Instruments, ch\u00fang t\u00f4i cung c\u1ea5p c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn\u00a0<a href=\"https:\/\/www.packqc.com\/vi\/product-category\/coefficient-of-friction-tester\/\" target=\"_blank\" rel=\"noopener\">Thi\u1ebft b\u1ecb ki\u1ec3m tra COF<\/a>\u00a0\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a kh\u00e1ch h\u00e0ng. Thi\u1ebft b\u1ecb c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o th\u1eed nghi\u1ec7m ch\u00ednh x\u00e1c, \u0111\u00e1ng tin c\u1eady v\u00e0 linh ho\u1ea1t cho nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u.<\/p><h3><strong>C\u00e1c t\u00ednh n\u0103ng v\u00e0 l\u1ee3i \u00edch ch\u00ednh:<\/strong><\/h3><ul><li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/strong>: Cung c\u1ea5p ph\u00e9p \u0111o COF ch\u00ednh x\u00e1c v\u1edbi \u0111\u1ed9 bi\u1ebfn thi\u00ean t\u1ed1i thi\u1ec3u.<\/li><li><strong>Giao di\u1ec7n th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng<\/strong>: \u0110i\u1ec1u khi\u1ec3n d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 ph\u1ea7n m\u1ec1m tr\u1ef1c quan.<\/li><li><strong>T\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh<\/strong>: Gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p cho c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m c\u1ee5 th\u1ec3.<\/li><li><strong>Thi\u1ebft k\u1ebf m\u1ea1nh m\u1ebd<\/strong>: B\u1ec1n b\u1ec9 v\u00e0 \u00edt b\u1ea3o tr\u00ec, mang l\u1ea1i \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i.<\/li><\/ul><h2>Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2><p>Ki\u1ec3m tra COF cho m\u00e0ng phim l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, hi\u1ec7u su\u1ea5t v\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p chu\u1ea9n h\u00f3a nh\u01b0 ASTM D1894 v\u00e0 ISO 8295, v\u00e0 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb ti\u00ean ti\u1ebfn t\u1eeb Cell Instruments, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n, t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh c\u1ee7a h\u1ecd v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a ng\u00e0nh.<\/p><h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2><p><strong>1. T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c th\u1eed nghi\u1ec7m COF \u0111\u1ed1i v\u1edbi phim l\u00e0 g\u00ec?<\/strong><\/p><p>Ki\u1ec3m tra COF r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u00ednh ch\u1ea5t ma s\u00e1t c\u1ee7a m\u00e0ng phim, \u0111\u1ea3m b\u1ea3o ch\u00fang ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng d\u1ef1 \u0111\u1ecbnh v\u00e0 duy tr\u00ec c\u00e1c ti\u00eau chu\u1ea9n ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng.<\/p><p><strong>2. ASTM D1894 kh\u00e1c v\u1edbi ISO 8295 nh\u01b0 th\u1ebf n\u00e0o trong th\u1eed nghi\u1ec7m COF?<\/strong><\/p><p>ASTM D1894 v\u00e0 ISO 8295 \u0111\u1ec1u cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p chu\u1ea9n h\u00f3a \u0111\u1ec3 th\u1eed nghi\u1ec7m COF, nh\u01b0ng ch\u00fang kh\u00e1c nhau v\u1ec1 c\u00e1c chi ti\u1ebft c\u1ee5 th\u1ec3 nh\u01b0 t\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m v\u00e0 y\u00eau c\u1ea7u chu\u1ea9n b\u1ecb m\u1eabu.<\/p><p><strong>3. Ng\u00e0nh c\u00f4ng nghi\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i nhi\u1ec1u nh\u1ea5t t\u1eeb th\u1eed nghi\u1ec7m COF?<\/strong><\/p><p>C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p bao g\u1ed3m bao b\u00ec, thi\u1ebft b\u1ecb y t\u1ebf, d\u01b0\u1ee3c ph\u1ea9m, ch\u1ea5t k\u1ebft d\u00ednh, d\u1ec7t may v\u00e0 c\u00e1c c\u01a1 quan ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i \u0111\u00e1ng k\u1ec3 t\u1eeb th\u1eed nghi\u1ec7m COF.<\/p><p><strong>4. Thi\u1ebft b\u1ecb ki\u1ec3m tra COF n\u00ean \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n bao l\u00e2u m\u1ed9t l\u1ea7n?<\/strong><\/p><p>Hi\u1ec7u chu\u1ea9n th\u01b0\u1eddng xuy\u00ean l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c. T\u1ea7n su\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb h\u00e0ng th\u00e1ng \u0111\u1ebfn h\u00e0ng n\u0103m.<\/p><p><strong>5. Ki\u1ec3m tra COF c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh cho c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau kh\u00f4ng?<\/strong><\/p><p>C\u00f3, th\u1eed nghi\u1ec7m COF c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh cho nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u kh\u00e1c nhau b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u00f4ng s\u1ed1 th\u1eed nghi\u1ec7m, s\u1eed d\u1ee5ng c\u00e1c tr\u1ecdng l\u01b0\u1ee3ng xe tr\u01b0\u1ee3t kh\u00e1c nhau v\u00e0 tu\u00e2n theo c\u00e1c giao th\u1ee9c x\u1eed l\u00fd c\u1ee5 th\u1ec3.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d04a61b e-flex e-con-boxed e-con e-parent\" data-id=\"d04a61b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4abf8a8 elementor-widget elementor-widget-text-editor\" data-id=\"4abf8a8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>S\u1ea3n ph\u1ea9m li\u00ean quan<\/h2><p><a href=\"https:\/\/www.packqc.com\/vi\/product\/coefficient-of-friction-testing-equipment\/\">Thi\u1ebft b\u1ecb ki\u1ec3m tra h\u1ec7 s\u1ed1 ma s\u00e1t<\/a><\/p><h2>B\u00e0i vi\u1ebft li\u00ean quan<\/h2><p><a href=\"https:\/\/www.packqc.com\/vi\/dynamic-friction-testing-machine-improve-quality\/\" target=\"_blank\" rel=\"noopener\">M\u00e1y ki\u1ec3m tra ma s\u00e1t \u0111\u1ed9ng<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/film-friction-coefficient-tester-for-plastic-films\/\" target=\"_blank\" rel=\"noopener\">M\u00e1y ki\u1ec3m tra h\u1ec7 s\u1ed1 ma s\u00e1t m\u00e0ng<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/coefficient-of-friction-of-plastic-films\/\" target=\"_blank\" rel=\"noopener\">H\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a m\u00e0ng nh\u1ef1a<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/measure-the-coefficient-of-friction-of-paper\/\" target=\"_blank\" rel=\"noopener\">H\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a gi\u1ea5y<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/friction-test-method-for-packaging-films\/\" target=\"_blank\" rel=\"noopener\">Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra ma s\u00e1t cho m\u00e0ng \u0111\u00f3ng g\u00f3i<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/how-to-conduct-paper-friction-testing-with-astm-d1894\/\" target=\"_blank\" rel=\"noopener\">M\u00e1y ki\u1ec3m tra ma s\u00e1t cho gi\u1ea5y<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/friction-testing-for-paper-products-astm-d1894-iso-8295\/\" target=\"_blank\" rel=\"noopener\">Ki\u1ec3m tra ma s\u00e1t cho c\u00e1c s\u1ea3n ph\u1ea9m gi\u1ea5y<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/best-friction-test-equipment-for-paper-products\/\" target=\"_blank\" rel=\"noopener\">Thi\u1ebft b\u1ecb ki\u1ec3m tra ma s\u00e1t cho s\u1ea3n ph\u1ea9m gi\u1ea5y<\/a><\/p><p><a href=\"https:\/\/www.packqc.com\/vi\/importance-of-friction-coefficient-tester-for-paper\/\" target=\"_blank\" rel=\"noopener\">M\u00e1y ki\u1ec3m tra h\u1ec7 s\u1ed1 ma s\u00e1t cho gi\u1ea5y<\/a><\/p><h2>Th\u1ea9m quy\u1ec1n gi\u1ea3i quy\u1ebft<\/h2><p><a href=\"https:\/\/www.iso.org\/standard\/20760.html\" rel=\"nofollow noopener\" target=\"_blank\">Ti\u00eau chu\u1ea9n ISO8295<\/a><\/p><p><a href=\"https:\/\/www.astm.org\/d1894-14.html\" rel=\"nofollow noopener\" target=\"_blank\">Ti\u00eau chu\u1ea9n ASTMD1894<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u v\u1ec1 th\u1eed nghi\u1ec7m h\u1ec7 s\u1ed1 ma s\u00e1t (COF) \u0111\u1ed1i v\u1edbi m\u00e0ng m\u1ecfng: Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 ti\u00eau chu\u1ea9n Gi\u1edbi thi\u1ec7u v\u1ec1 th\u1eed nghi\u1ec7m h\u1ec7 s\u1ed1 ma s\u00e1t (COF) \u0111\u1ed1i v\u1edbi m\u00e0ng m\u1ecfng H\u1ec7 s\u1ed1 ma s\u00e1t (COF) l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng trong th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i m\u00e0ng m\u1ecfng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong bao b\u00ec, thi\u1ebft b\u1ecb y t\u1ebf, d\u01b0\u1ee3c ph\u1ea9m, ch\u1ea5t k\u1ebft d\u00ednh v\u00e0 d\u1ec7t may. Th\u1eed nghi\u1ec7m COF \u0111o l\u01b0\u1eddng l\u1ef1c c\u1ea3n ph\u00e1t sinh khi hai b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t tr\u00ean nhau, cung c\u1ea5p d\u1eef li\u1ec7u thi\u1ebft y\u1ebfu cho [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2677","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/posts\/2677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/comments?post=2677"}],"version-history":[{"count":0,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/posts\/2677\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media?parent=2677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/categories?post=2677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/tags?post=2677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}