{"id":7678,"date":"2025-12-19T15:58:42","date_gmt":"2025-12-19T07:58:42","guid":{"rendered":"https:\/\/www.qualitester.com\/?page_id=7678"},"modified":"2025-12-19T16:09:07","modified_gmt":"2025-12-19T08:09:07","slug":"trouser-tear-resistance-test","status":"publish","type":"page","link":"https:\/\/www.qualitester.com\/cs\/applications\/trouser-tear-resistance-test\/","title":{"rendered":"Test odolnosti kalhot proti roztr\u017een\u00ed"},"content":{"rendered":"

Zkou\u0161ka odolnosti plastov\u00fdch f\u00f3li\u00ed proti roztr\u017een\u00ed nohavic
\nASTM D1938<\/h1>\n
\n

Na str\u00e1nk\u00e1ch Test odolnosti kalhot proti roztr\u017een\u00ed<\/strong> je z\u00e1kladn\u00ed metodou pro hodnocen\u00ed odolnost plastov\u00fdch f\u00f3li\u00ed proti roztr\u017een\u00ed<\/strong> a tenk\u00e9 f\u00f3lie. \u0158\u00edd\u00ed se podle ASTM D1938<\/strong>, tato standardn\u00ed zkou\u0161ka poskytuje z\u00e1sadn\u00ed \u00fadaje pro pr\u016fmyslov\u00e1 odv\u011btv\u00ed, kter\u00e1 jsou z\u00e1visl\u00e1 na trvanlivosti a v\u00fdkonnosti sv\u00fdch plastov\u00fdch f\u00f3li\u00ed, jako jsou obaly, zdravotnick\u00e9 prost\u0159edky a textilie. V tomto \u010dl\u00e1nku se budeme zab\u00fdvat Zkou\u0161ka podle normy ASTM D1938<\/strong> metoda, v\u00fdznam odolnost proti roztr\u017een\u00ed<\/strong>, a jak lze tento test pou\u017e\u00edt v r\u016fzn\u00fdch odv\u011btv\u00edch.<\/p>\n

\n

<\/h2>\n

ASTM D1938: Standardn\u00ed zku\u0161ebn\u00ed metoda pro stanoven\u00ed odolnosti proti roztr\u017een\u00ed<\/h2>\n

ASTM D1938<\/strong> je standardn\u00ed zku\u0161ebn\u00ed metoda pro stanoven\u00ed odolnost proti \u0161\u00ed\u0159en\u00ed trhlin<\/strong> z plastov\u00e9 f\u00f3lie<\/strong> a tenk\u00e9 f\u00f3lie. Zkou\u0161ka zahrnuje metoda jednoho odtr\u017een\u00ed<\/strong>, kdy se ve vzorku vytvo\u0159\u00ed \u0161t\u011brbina a m\u011b\u0159\u00ed se s\u00edla pot\u0159ebn\u00e1 k \u0161\u00ed\u0159en\u00ed trhliny. Na adrese . separa\u010dn\u00ed stroj s konstantn\u00ed rychlost\u00ed uchopen\u00ed<\/strong> pou\u017eit\u00e1 v t\u00e9to metod\u011b zaji\u0161\u0165uje p\u0159esnost testu a poskytuje v\u00fdrobc\u016fm cenn\u00e9 \u00fadaje o tom, jak se jejich f\u00f3lie budou chovat p\u0159i nam\u00e1h\u00e1n\u00ed.<\/p>\n

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Co je to odolnost proti \u0161\u00ed\u0159en\u00ed trhlin?<\/h2>\n

Odolnost proti \u0161\u00ed\u0159en\u00ed trhlin<\/strong> ozna\u010duje schopnost materi\u00e1lu odol\u00e1vat \u0161\u00ed\u0159en\u00ed trhliny, jakmile se za\u010dne \u0161\u00ed\u0159it. . Test odolnosti kalhot proti roztr\u017een\u00ed<\/strong> je \u00fa\u010dinn\u00fd zp\u016fsob m\u011b\u0159en\u00ed t\u00e9to vlastnosti v plastov\u00e9 f\u00f3lie<\/strong> a tenk\u00e9 f\u00f3lie<\/strong>. Zkou\u0161ka m\u011b\u0159\u00ed, jak snadno pokra\u010duje trh\u00e1n\u00ed nap\u0159\u00ed\u010d materi\u00e1lem p\u0159i p\u016fsoben\u00ed s\u00edly. Materi\u00e1l s vy\u0161\u0161\u00ed odolnost proti roztr\u017een\u00ed<\/strong> odol\u00e1 roztr\u017een\u00ed, co\u017e je d\u016fle\u017eit\u00e9 pro materi\u00e1ly pou\u017e\u00edvan\u00e9 v obalov\u00fdch a bezpe\u010dnostn\u00edch aplikac\u00edch.<\/p>\n

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Zku\u0161ebn\u00ed postup: Metoda roztr\u017een\u00ed kalhot<\/h2>\n

Na str\u00e1nk\u00e1ch Test trh\u00e1n\u00ed kalhot<\/strong> se \u0159\u00edd\u00ed strukturovan\u00fdm postupem hodnocen\u00ed odolnost proti roztr\u017een\u00ed<\/strong>:<\/p>\n

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  1. \n

    P\u0159\u00edprava vzork\u016f<\/strong>: Z materi\u00e1lu se vy\u0159\u00edzne obd\u00e9ln\u00edkov\u00fd vzorek a uprost\u0159ed se ud\u011bl\u00e1 \u0161t\u011brbina. Vzorek mus\u00ed spl\u0148ovat specifick\u00e9 rozm\u011bry, jak je uvedeno v \u010d\u00e1sti ASTM D1938<\/strong>.<\/p>\n<\/li>\n

  2. \n

    Odd\u011blen\u00ed \u00fachopu<\/strong>: Vzorek se dr\u017e\u00ed mezi dv\u011bma \u00fachyty v dr\u017e\u00e1ku. separa\u010dn\u00ed stroj s konstantn\u00ed rychlost\u00ed uchopen\u00ed<\/strong>, s po\u010d\u00e1te\u010dn\u00edm odstupem 50 mm (2 palce).<\/p>\n<\/li>\n

  3. \n

    Aplikace s\u00edly<\/strong>: Stroj p\u016fsob\u00ed silou s \u0159\u00edzenou rychlost\u00ed odd\u011blov\u00e1n\u00ed (250 mm\/min), co\u017e zp\u016fsobuje \u0161\u00ed\u0159en\u00ed trhliny nap\u0159\u00ed\u010d vzorkem.<\/p>\n<\/li>\n

  4. \n

    Sb\u011br dat<\/strong>: Zaznamen\u00e1v\u00e1 se s\u00edla pot\u0159ebn\u00e1 k \u0161\u00ed\u0159en\u00ed trhliny a tyto \u00fadaje se pou\u017eij\u00ed k v\u00fdpo\u010dtu s\u00edly pot\u0159ebn\u00e9 k \u0161\u00ed\u0159en\u00ed trhliny. odolnost proti \u0161\u00ed\u0159en\u00ed trhlin<\/strong> materi\u00e1lu.<\/p>\n<\/li>\n

  5. \n

    Sm\u011br testu<\/strong>: Zkou\u0161ka se prov\u00e1d\u00ed jak ve sm\u011bru stroje, tak v p\u0159\u00ed\u010dn\u00e9m sm\u011bru materi\u00e1lu, co\u017e zaji\u0161\u0165uje, \u017ee v\u00fdsledky odr\u00e1\u017eej\u00ed chov\u00e1n\u00ed materi\u00e1lu v r\u016fzn\u00fdch orientac\u00edch.<\/p>\n<\/li>\n<\/ol>\n

    \n

    V\u00fdznam zkou\u0161ek odolnosti proti \u0161\u00ed\u0159en\u00ed trhlin<\/h2>\n

    Odolnost proti roztr\u017een\u00ed<\/strong> je kritickou vlastnost\u00ed pro plastov\u00e9 f\u00f3lie<\/strong> a tenk\u00e9 f\u00f3lie<\/strong> pou\u017e\u00edvan\u00e9 v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch. Nap\u0159\u00edklad:<\/p>\n