{"id":1301,"date":"2026-03-02T06:56:21","date_gmt":"2026-03-02T06:56:21","guid":{"rendered":"https:\/\/www.wrapfilmtest.com\/?p=1301"},"modified":"2026-03-02T06:56:24","modified_gmt":"2026-03-02T06:56:24","slug":"pvc-cling-film-dart-impact-test","status":"publish","type":"post","link":"https:\/\/www.wrapfilmtest.com\/lt\/pvc-cling-film-dart-impact-test","title":{"rendered":"PVC klijuojamosios pl\u0117vel\u0117s sm\u016bgio str\u0117lyte bandymas ir ASTM D1709 plastikin\u0117s pl\u0117vel\u0117s atsparumo bandymas"},"content":{"rendered":"

\u012evadas \u012f PVC klijuojamosios pl\u0117vel\u0117s sm\u016bgio bandym\u0105 str\u0117l\u0117mis<\/h3>\n\n\n\n

The PVC lipnios pl\u0117vel\u0117s sm\u016bginis bandymas<\/strong> yra labai svarbus vertinant PVC pl\u0117veli\u0173, kurios paprastai naudojamos pakuot\u0117ms, atsparum\u0105 sm\u016bgiams. \u0160iuo bandymu matuojamas pl\u0117vel\u0117s atsparumas laisvai krintan\u010di\u0173 objekt\u0173 sm\u016bgiams, imituojant realias s\u0105lygas, kai pl\u0117vel\u0117 gali patirti staig\u0173 ir stipr\u0173 sm\u016bg\u012f. Supratimas apie plastikin\u0117s pl\u0117vel\u0117s atsparumas<\/strong> atsparumas tokiems poveikiams yra labai svarbus siekiant u\u017etikrinti j\u0173 patikimum\u0105 ir ilgaam\u017ei\u0161kum\u0105, ypa\u010d tokiose pramon\u0117s \u0161akose kaip maisto produkt\u0173 pakuot\u0117s, medicinin\u0117s pakuot\u0117s ir kt.<\/p>\n\n\n\n

\"PVC<\/a><\/figure>\n\n\n\n

ASTM D1709 standarto supratimas ir jo taikymas PVC lipniajai pl\u0117velei<\/h3>\n\n\n\n

The ASTM D1709<\/strong> standarte apra\u0161yti du pagrindiniai bandym\u0173 metodai, kuriais nustatomas plastikini\u0173 pl\u0117veli\u0173, \u012fskaitant PVC lipnias pl\u0117veles, atsparumas sm\u016bgiams. \u0160ie metodai, A bandymo metodas<\/strong> ir Bandymo metodas B<\/strong>, laisvai krintan\u010dia str\u0117le pataikykite \u012f pl\u0117vel\u0119 ir \u012fvertinkite jos atsparum\u0105 sm\u016bgiui.<\/p>\n\n\n\n

    \n
  1. A bandymo metodas:<\/strong> 38,10 mm skersmens pusrutuli\u0161ka str\u0117l\u0117, paleista i\u0161 0,66 m auk\u0161\u010dio.<\/li>\n\n\n\n
  2. B bandymo metodas:<\/strong> Naudojama didesn\u0117 50,80 mm skersmens str\u0117l\u0117, paleista i\u0161 1,52 m auk\u0161\u010dio.<\/li>\n<\/ol>\n\n\n\n

    Abu metodai leid\u017eia gamintojams apskai\u010diuoti sm\u016bgio gedimo svoris<\/strong> (svoris, d\u0117l kurio 50% bandiniai sugenda) nurodytomis sm\u016bgio s\u0105lygomis. \u0160is pa\u017eeidimo svoris padeda nustatyti, kiek pl\u0117vel\u0117 yra atspari pa\u017eeidimams j\u0105 naudojant realiomis s\u0105lygomis.<\/p>\n\n\n\n

    Plastikin\u0117s pl\u0117vel\u0117s atsparumas: Pagrindiniai veiksniai<\/h3>\n\n\n\n

    The plastikin\u0117s pl\u0117vel\u0117s atsparumas<\/strong> poveikis priklauso nuo daugelio veiksni\u0173, pvz:<\/p>\n\n\n\n

      \n
    • Pl\u0117vel\u0117s storis:<\/strong> Storesn\u0117s pl\u0117vel\u0117s paprastai b\u016bna atsparesn\u0117s sm\u016bgiams, ta\u010diau n\u0117ra paprastos koreliacijos tarp storio ir atsparumo sm\u016bgiams.<\/li>\n\n\n\n
    • Med\u017eiagos sud\u0117tis:<\/strong> PVC pl\u0117vel\u0117s pasi\u017eymi unikaliomis savyb\u0117mis, kurios turi \u012ftakos j\u0173 geb\u0117jimui sugerti sm\u016bgio energij\u0105. Pavyzd\u017eiui, pl\u0117vel\u0117s ilgaam\u017ei\u0161kum\u0105 lemia naudojamos PVC dervos tipas.<\/li>\n\n\n\n
    • Kondicionavimas:<\/strong> Pl\u0117vel\u0117s pavyzd\u017eiai prie\u0161 bandymus kondicionuojami tam tikroje temperat\u016broje ir dr\u0117gm\u0117je, kad b\u016bt\u0173 u\u017etikrintas vis\u0173 bandym\u0173 nuoseklumas.<\/li>\n\n\n\n
    • Filmo defektai:<\/strong> Jei yra rauk\u0161li\u0173, skylu\u010di\u0173 ar kit\u0173 netobulum\u0173, gali labai suma\u017e\u0117ti pl\u0117vel\u0117s atsparumas sm\u016bgiams.<\/li>\n<\/ul>\n\n\n\n

      Atsparumo sm\u016bgiams bandymo proced\u016bra<\/h3>\n\n\n\n
        \n
      1. M\u0117ginio paruo\u0161imas:<\/strong> Bandiniai turi b\u016bti be defekt\u0173, pavyzd\u017eiui, skylu\u010di\u0173 ar rauk\u0161li\u0173. Prie\u0161 bandym\u0105 pl\u0117vel\u0117 turi b\u016bti kondicionuojama 23 \u00b1 2 \u00b0C temperat\u016broje ir 50 \u00b1 10% santykin\u0117je oro dr\u0117gm\u0117je ne trumpiau kaip 40 valand\u0173.<\/li>\n\n\n\n
      2. Testo nustatymas:<\/strong> PVC lipnios pl\u0117vel\u0117s pavyzdys tvirtai prispaud\u017eiamas tarp dviej\u0173 plok\u0161\u010di\u0173. Tada i\u0161 nustatyto auk\u0161\u010dio paleid\u017eiama nustatyto svorio str\u0117l\u0117. Bandymas kartojamas didinant arba ma\u017einant str\u0117l\u0117s svor\u012f, kad b\u016bt\u0173 nustatytas gedimo ta\u0161kas.<\/li>\n\n\n\n
      3. Bandym\u0173 metodai:<\/strong> Abu ASTM D1709 apibr\u0117\u017eti metodai leid\u017eia keisti bandymo s\u0105lygas:\n
          \n
        • A bandymo metodas:<\/strong> Tinka pl\u0117vel\u0117ms, kurioms reikia nuo 50 g iki 6 kg svorio.<\/li>\n\n\n\n
        • B bandymo metodas:<\/strong> Tinka pl\u0117vel\u0117ms, kuri\u0173 svoris nuo 0,3 kg iki 6 kg.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • Rezultat\u0173 analiz\u0117:<\/strong> Atliekant bandym\u0105 \u012fvertinamas str\u0117l\u0117s svoris, d\u0117l kurio 50% bandini\u0173 sugenda. Taip nuosekliai \u012fvertinama, kaip PVC lipni pl\u0117vel\u0117 veiks realiomis s\u0105lygomis, pavyzd\u017eiui, pakuojant ar gabenant.<\/li>\n<\/ol>\n\n\n\n

          \u012evyniojama tempimo pl\u0117vel\u0117 ir jos atsparumas sm\u016bgiams<\/h3>\n\n\n\n

          Apvynioti tempimo pl\u0117vele<\/strong> yra \u012fprasta pakavimo med\u017eiaga, ypa\u010d logistikos pramon\u0117je. Jos atsparumas sm\u016bgio j\u0117goms yra labai svarbus siekiant u\u017etikrinti, kad supakuotos prek\u0117s i\u0161likt\u0173 saugios. . smiginio sm\u016bgio bandymas<\/strong> atlieka svarb\u0173 vaidmen\u012f vertinant, kaip gerai pl\u0117vel\u0117 gali atlaikyti sm\u016bgius, su kuriais ji gali susidurti gabenimo ar tvarkymo metu.<\/p>\n\n\n\n

          Laisvai krintan\u010di\u0173 str\u0117li\u0173 sm\u016bgio testeri\u0173 vaidmuo<\/h3>\n\n\n\n

          A laisvai krintan\u010dios str\u0117l\u0117s sm\u016bgio testeris<\/strong> yra idealus \u012frankis atlikti PVC lipnios pl\u0117vel\u0117s sm\u016bginis bandymas<\/strong>. \u0160iais bandymais i\u0161 tam tikro auk\u0161\u010dio numetama kontroliuojamo svorio str\u0117l\u0117, tod\u0117l pl\u0117vel\u0117s atsparumas sm\u016bgiams matuojamas tiksliai ir nuosekliai. Pagrindin\u0117s laisvai krintan\u010di\u0173 str\u0117li\u0173 sm\u016bgio testeri\u0173 savyb\u0117s:<\/p>\n\n\n\n

            \n
          • Reguliuojami str\u0117li\u0173 svoriai:<\/strong> Kad atitikt\u0173 skirtingas bandymo s\u0105lygas ir pl\u0117vel\u0117s tipus.<\/li>\n\n\n\n
          • Tikslus kritimo auk\u0161tis:<\/strong> Siekiant u\u017etikrinti, kad sm\u016bgio energija atitikt\u0173 ASTM D1709 standartus.<\/li>\n\n\n\n
          • Patikimas duomen\u0173 rinkimas:<\/strong> Daugelis testeri\u0173 turi skaitmeninius ekranus ir duomen\u0173 registravimo funkcijas, padedan\u010dias steb\u0117ti rezultatus ir pagerinti testavimo efektyvum\u0105.<\/li>\n<\/ul>\n\n\n\n

            I\u0161vada<\/h3>\n\n\n\n

            The PVC lipnios pl\u0117vel\u0117s sm\u016bginis bandymas<\/strong> yra labai svarbus procesas vertinant pakuot\u0117se naudojam\u0173 plastikini\u0173 pl\u0117veli\u0173 ilgaam\u017ei\u0161kum\u0105 ir atsparum\u0105 sm\u016bgiams. Vadovaudamasis ASTM D1709 standartai<\/strong>, gamintojai gali u\u017etikrinti, kad j\u0173 pl\u0117vel\u0117s atitikt\u0173 b\u016btinus eksploatacini\u0173 savybi\u0173 kriterijus \u012fvairioms reikm\u0117ms, pvz. apvynioti tempimo pl\u0117vele<\/strong>. Naudojant laisvai krintan\u010dios str\u0117l\u0117s sm\u016bgio testeris<\/strong> leid\u017eia atlikti tikslius ir patikimus bandymus, o tai labai svarbu siekiant u\u017etikrinti kokyb\u0117s kontrol\u0119 ir u\u017etikrinti optimal\u0173 pl\u0117vel\u0117s veikim\u0105 realiomis s\u0105lygomis.<\/p>\n\n\n\n

            Skirta \u012fmon\u0117ms, norin\u010dioms pagerinti savo med\u017eiag\u0173 bandym\u0173 galimybes, Cell Instruments Co., Ltd.<\/strong> teikia pa\u017eangi\u0105 bandym\u0173 \u012frang\u0105, \u012fskaitant didelio tikslumo laisvai krintan\u010di\u0173 str\u0117li\u0173 sm\u016bgio testeriai<\/strong>, kad b\u016bt\u0173 galima \u012fvertinti PVC pl\u0117veli\u0173 ir kit\u0173 med\u017eiag\u0173 ilgaam\u017ei\u0161kum\u0105. Naudodami tinkamas priemones ir laikydamiesi nustatyt\u0173 standart\u0173, gamintojai gali u\u017etikrinti, kad j\u0173 gaminiai atitikt\u0173 auk\u0161\u010diausius eksploatacini\u0173 savybi\u0173 ir patikimumo standartus.<\/p>","protected":false},"excerpt":{"rendered":"

            \u012evadas \u012f PVC lipnios pl\u0117vel\u0117s sm\u016bgio sm\u016bgiu bandym\u0105 PVC lipnios pl\u0117vel\u0117s sm\u016bgio sm\u016bgiu bandymas yra labai svarbus vertinant PVC pl\u0117veli\u0173, kurios da\u017eniausiai naudojamos pakuot\u0117ms, atsparum\u0105 sm\u016bgiams. \u0160iuo bandymu matuojamas pl\u0117vel\u0117s atsparumas laisvai krintan\u010di\u0173 objekt\u0173 sm\u016bgiams, imituojant realias s\u0105lygas, kai pl\u0117vel\u0117 gali patirti staig\u0173, [...]","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1301","post","type-post","status-publish","format-standard","hentry","category-wrap-film-test"],"yoast_head":"\nPVC Cling Film Dart Impact Test and ASTM D1709 Standards<\/title>\n<meta name=\"description\" content=\"Explore PVC Cling Film dart impact test, including resistance of plastic film and ASTM D1709 standards. 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