{"id":9838,"date":"2026-02-24T15:11:44","date_gmt":"2026-02-24T07:11:44","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/astm-d202-2\/"},"modified":"2026-04-16T09:53:05","modified_gmt":"2026-04-16T01:53:05","slug":"astm-d202","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/cs\/standard\/astm-d202\/","title":{"rendered":"ASTM D202"},"content":{"rendered":"

Zkou\u0161ka sou\u010dinitele t\u0159en\u00ed pro pap\u00edr<\/h2>\n\n\n\n

Pochopen\u00ed a kontrola koeficient t\u0159en\u00ed pap\u00edru<\/em> je z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed konzistence v\u00fdkonu v izola\u010dn\u00edch aplikac\u00edch, zejm\u00e9na tam, kde se pap\u00edr pou\u017e\u00edv\u00e1 v elektrick\u00fdch p\u0159\u00edstroj\u00edch. ASTM D202<\/strong><\/a> poskytuje standardizovan\u00e9 postupy pro m\u011b\u0159en\u00ed povrchov\u00e9ho t\u0159en\u00ed neo\u0161et\u0159en\u00e9ho pap\u00edru metodou naklon\u011bn\u00e9 roviny. Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 principem zkou\u0161ky, po\u017eadavky na vybaven\u00ed, zku\u0161ebn\u00edmi postupy a zp\u016fsobem pou\u017eit\u00ed p\u0159\u00edstroj\u016f, jako je nap\u0159. tester \u00fahlu skluzu<\/strong> m\u016f\u017ee pomoci tyto standardy splnit - a z\u00e1rove\u0148 doporu\u010dit profesion\u00e1ln\u00ed \u0159e\u0161en\u00ed, jako je nap\u0159\u00edklad Bun\u011b\u010dn\u00e9 n\u00e1stroje COF-03<\/a><\/strong> pro optimalizovan\u00fd v\u00fdkon testu.<\/p>\n\n\n\n

V\u00fdznam m\u011b\u0159en\u00ed sou\u010dinitele t\u0159en\u00ed pap\u00edru<\/h2>\n\n\n\n

T\u0159en\u00ed hraje rozhoduj\u00edc\u00ed roli p\u0159i pou\u017eit\u00ed pap\u00edrov\u00fdch p\u00e1sek v mechanick\u00fdch nebo elektrick\u00fdch za\u0159\u00edzen\u00edch. Vysok\u00e1 nebo nest\u00e1l\u00e1 koeficient t\u0159en\u00ed pap\u00edru<\/strong> m\u016f\u017ee zp\u016fsobit prokluzov\u00e1n\u00ed, zvln\u011bn\u00ed nebo \u0161patn\u00e9 nan\u00e1\u0161en\u00ed p\u0159i nav\u00edjen\u00ed nebo oh\u00fdb\u00e1n\u00ed. Str\u00e1nka dynamick\u00fd koeficient t\u0159en\u00ed<\/strong> stanoven\u00e1 podle normy ASTM D202 odr\u00e1\u017e\u00ed kluznou interakci mezi dv\u011bma povrchy pap\u00edru nebo mezi pap\u00edrem a hladk\u00fdm kovem.<\/p>\n\n\n\n

Tyto \u00fadaje pom\u00e1haj\u00ed v\u00fdrobc\u016fm zajistit spolehlivost v\u00fdrobk\u016f b\u011bhem:<\/p>\n\n\n\n

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  • Vysokorychlostn\u00ed balen\u00ed izolace<\/li>\n\n\n\n
  • Oh\u00fdb\u00e1n\u00ed vodi\u010d\u016f zabalen\u00fdch v pap\u00edru<\/li>\n\n\n\n
  • Procesy balen\u00ed a laminace<\/li>\n<\/ul>\n\n\n\n

    Shrnut\u00ed zku\u0161ebn\u00edho postupu podle normy ASTM D202<\/h2>\n\n\n\n
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    1. P\u0159\u00edprava vzorku<\/strong>:
      \u0158ez\u00e1n\u00ed vzork\u016f na po\u017eadovan\u00e9 rozm\u011bry (nap\u0159. 63 \u00d7 170 mm a 200 \u00d7 250 mm), p\u0159i\u010dem\u017e je t\u0159eba zajistit orientaci ve sm\u011bru stroje nebo k\u0159\u00ed\u017ee stroje. Ozna\u010dte stranu dr\u00e1tu\/plsti a sm\u011br stroje zna\u010dkami.<\/li>\n\n\n\n
    2. Kondice<\/strong>:
      Vzorky mus\u00ed b\u00fdt upraveny podle odd\u00edlu 15 normy.<\/li>\n\n\n\n
    3. Nastaven\u00ed testu<\/strong>:
      Jeden vzorek p\u0159ipevn\u011bte k naklon\u011bn\u00e9 rovin\u011b a druh\u00fd k posuvn\u00e9mu bloku. Ujist\u011bte se, \u017ee nedo\u0161lo k \u017e\u00e1dn\u00e9mu zvr\u00e1sn\u011bn\u00ed nebo zne\u010di\u0161t\u011bn\u00ed.<\/li>\n\n\n\n
    4. P\u0159edb\u011b\u017en\u00fd test<\/strong>:
      Opatrn\u011b zvedn\u011bte rovinu a klepejte na blok, dokud se neposune. Zaznamenejte p\u0159edb\u011b\u017en\u00fd \u00fahel skluzu.<\/li>\n\n\n\n
    5. Z\u00e1v\u011bre\u010dn\u00fd test<\/strong>:
      Opakujte s nov\u00fdm vzorkem a zvedn\u011bte rovinu na \u00fahel o 1\u00b0 men\u0161\u00ed, ne\u017e byl \u00fahel p\u0159edb\u011b\u017en\u00fd. Zaznamenejte \u00fahel, pod kter\u00fdm blok sklouzne bez poklep\u00e1n\u00ed.<\/li>\n\n\n\n
    6. Hl\u00e1\u0161en\u00ed<\/strong>:
      V\u00fdsledky uv\u00e1d\u011bjte jako pr\u016fm\u011br alespo\u0148 t\u0159\u00ed m\u011b\u0159en\u00ed. Pro dynamick\u00fd sou\u010dinitel t\u0159en\u00ed vypo\u010d\u00edtejte tangens kone\u010dn\u00e9ho \u00fahlu t\u0159en\u00ed.<\/li>\n<\/ol>\n\n\n\n
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