{"id":1465,"date":"2026-03-02T14:21:55","date_gmt":"2026-03-02T06:21:55","guid":{"rendered":"https:\/\/www.puncturetest.com\/?p=1465"},"modified":"2026-03-02T14:21:56","modified_gmt":"2026-03-02T06:21:56","slug":"polyethylene-film-dart-impact-test","status":"publish","type":"post","link":"https:\/\/www.puncturetest.com\/lt\/polyethylene-film-dart-impact-test\/","title":{"rendered":"Polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymas ir ASTM D1709 pl\u0117vel\u0117s atsparumo bandymo metodas"},"content":{"rendered":"

\u012evadas \u012f polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams bandym\u0105 su str\u0117le<\/h2>\n\n\n\n

Polietileno pl\u0117vel\u0117s pla\u010diai naudojamos pakavimo, tekstil\u0117s ir \u012fvairiose kitose pramon\u0117s \u0161akose. Vienas i\u0161 svarbiausi\u0173 \u0161i\u0173 pl\u0117veli\u0173 kokyb\u0117s rodikli\u0173 yra j\u0173 atsparumas sm\u016bgiams. \u0160is polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymas<\/strong> yra standartizuotas metodas, skirtas nustatyti plastikini\u0173 pl\u0117veli\u0173 atsparum\u0105 sm\u016bgiams. \u0160is bandymas imituoja realias s\u0105lygas, kai krintantis daiktas atsitrenkia \u012f med\u017eiag\u0105, ir parodo, kaip gerai pl\u0117vel\u0117 atlaiko ply\u0161im\u0105 ar gedim\u0105.<\/p>\n\n\n\n

ASTM D1709 bandymo metodas<\/h2>\n\n\n\n

Svetain\u0117 ASTM D1709<\/strong> \u0160iame standarte apra\u0161omi plastiko pl\u0117veli\u0173 atsparumo sm\u016bgiams nustatymo bandymo metodai. Jame pateikiami du pagrindiniai bandymo metodai:<\/p>\n\n\n\n

    \n
  1. Tyrimo metodas A<\/strong> atliekamas naudojant 38,10 mm skersmens pusrutulio formos str\u0117l\u0119, kuri metama i\u0161 0,66 metro auk\u0161\u010dio.<\/li>\n\n\n\n
  2. Tyrimo metodas B<\/strong> Naudojamas didesnio, 50,80 mm skersmens str\u0117l\u0117, metama i\u0161 1,52 metro auk\u0161\u010dio.<\/li>\n<\/ol>\n\n\n\n

    Abu metodai skirti \u012fvertinti plastiko pl\u0117veli\u0173 atsparum\u0105 laisvai krintan\u010di\u0173 str\u0117li\u0173 sm\u016bgiams. \u0160is bandymas nustato sm\u016bgio gedimo svoris<\/strong>, t. y. ma\u017eiausias svoris, reikalingas pl\u0117velei supl\u0117\u0161yti.<\/p>\n\n\n\n

    \"Polietilenin\u0117s<\/a><\/figure>\n\n\n\n

    Pagrindiniai testo elementai<\/h2>\n\n\n\n
      \n
    • Tyrimo s\u0105ranka:<\/strong> Pl\u0117vel\u0117s bandinys tvirtai \u012ftvirtinamas tarp dviej\u0173 plok\u0161\u010di\u0173, o po to paleid\u017eiamas str\u0117l\u0117, kuri pataiko \u012f pl\u0117vel\u0119. Str\u0117l\u0117s perduota energija sukelia pl\u0117vel\u0117s tr\u016bkim\u0105 tam tikroje vietoje, o \u0161is duomenys v\u0117liau naudojami sm\u016bginio tr\u016bkimo svoriui apskai\u010diuoti.<\/li>\n\n\n\n
    • Gedimo vieta:<\/strong> \u0160io bandymo tikslas \u2013 nustatyti svor\u012f, kuriam pasiekus 50% bandiniai sugenda. Rezultatas matuojamas gramais (g) ir rodo, kiek pl\u0117vel\u0117 atspari pa\u017eeidimams d\u0117l sm\u016bgio.<\/li>\n\n\n\n
    • Standartin\u0117s bandymo s\u0105lygos:<\/strong> Bandymas atliekamas esant 23 \u00b1 2 \u00b0C (73,4 \u00b1 3,6 \u00b0F) temperat\u016brai ir 50 \u00b1 10% santykiniam dr\u0117gniui. \u0160i standartizacija u\u017etikrina, kad rezultatai b\u016bt\u0173 nuosekl\u016bs ir pakartojami.<\/li>\n<\/ul>\n\n\n\n

      Plastikin\u0117s pl\u0117vel\u0117s atsparumas<\/h2>\n\n\n\n

      Atsparumas plastikin\u0117 pl\u0117vel\u0117<\/strong> Atsparumas sm\u016bgiams priklauso nuo \u012fvairi\u0173 veiksni\u0173, \u012fskaitant pl\u0117vel\u0117s stor\u012f, med\u017eiagos sud\u0117t\u012f ir galim\u0173 defekt\u0173 buvim\u0105. Storesn\u0117 pl\u0117vel\u0117 gali atlaikyti didesnes sm\u016bgio j\u0117gas, ta\u010diau svarbu atkreipti d\u0117mes\u012f, kad atsparumas sm\u016bgiams ne visada tiesiogiai koreliuoja su storiu. Pl\u0117vel\u0117s, kuriose yra netolygum\u0173 ar priemai\u0161\u0173, gali lengviau sugad\u0117ti, nepriklausomai nuo j\u0173 storio.<\/p>\n\n\n\n

      Sm\u016bginio dart\u0173 bandymo proced\u016bra<\/h2>\n\n\n\n
        \n
      1. M\u0117ginio paruo\u0161imas:<\/strong> Bandiniai neturi tur\u0117ti smulki\u0173 skylu\u010di\u0173, rauk\u0161li\u0173 ir kit\u0173 defekt\u0173. Prie\u0161 bandym\u0105 pl\u0117vel\u0117 kondicionuojama kontroliuojant temperat\u016br\u0105 ir dr\u0117gnum\u0105.<\/li>\n\n\n\n
      2. \u201eDart\u201c sm\u016bgio bandymai:<\/strong> Taikant pasirinkt\u0105 metod\u0105 (A arba B), str\u0117l\u0117 paleid\u017eiama i\u0161 nurodyto auk\u0161\u010dio, kad pataikyt\u0173 \u012f pl\u0117vel\u0119. Str\u0117l\u0117s svoris palaipsniui didinamas arba ma\u017einamas, priklausomai nuo to, ar pl\u0117vel\u0117 ply\u0161ta, ar ne.<\/li>\n\n\n\n
      3. Rezultat\u0173 vertinimas:<\/strong> U\u017eregistruojamas sm\u016bgio svoris, o str\u0117l\u0117s energija susiejama su pl\u0117vel\u0117s atsparumu. \u0160is rezultatas padeda suprasti, kaip pl\u0117vel\u0117 elgsis realiomis s\u0105lygomis, pavyzd\u017eiui, kai j\u0105 veikia sm\u016bgio j\u0117gos pakavimo ar gabenimo metu.<\/li>\n<\/ol>\n\n\n\n

        Laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/h2>\n\n\n\n

        Svetain\u0117 laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong> yra nepakei\u010diama priemon\u0117 \u0161iam bandymui atlikti. Ji sukurta taip, kad str\u0117l\u0119 i\u0161\u0161aut\u0173 tiksliai ir nuosekliai, u\u017etikrinant tikslius rezultatus. \u0160ie bandymo \u012frenginiai yra b\u016btini pramon\u0117s \u0161akose, kuriose reikalingos auk\u0161tos kokyb\u0117s plastikin\u0117s pl\u0117vel\u0117s, pavyzd\u017eiui, pakavimo pramon\u0117je, kur ilgaam\u017ei\u0161kumas ir atsparumas sm\u016bgiams yra ypa\u010d svarb\u016bs.<\/p>\n\n\n\n

        Pagrindin\u0117s laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frengini\u0173 savyb\u0117s:<\/h2>\n\n\n\n
          \n
        • Tikslus valdymas:<\/strong> Leid\u017eia tiksliai nustatyti kritimo auk\u0161t\u012f ir str\u0117l\u0117s svor\u012f.<\/li>\n\n\n\n
        • Reguliuojami bandymo parametrai:<\/strong> Vartotojai gali reguliuoti str\u0117l\u0117s svor\u012f ir auk\u0161t\u012f, kad atitikt\u0173 \u012fvairius bandym\u0173 reikalavimus.<\/li>\n\n\n\n
        • Duomen\u0173 registravimas:<\/strong> Kai kuriuose modeliuose \u012frengti skaitmeniniai ekranai ir duomen\u0173 \u012fra\u0161ymo funkcijos, leid\u017eian\u010dios veiksmingai analizuoti rezultatus.<\/li>\n<\/ul>\n\n\n\n

          Polietilenin\u0117s pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymo privalumai<\/h2>\n\n\n\n
            \n
          1. Kokyb\u0117s kontrol\u0117:<\/strong> Dart sm\u016bgio bandymas suteikia vertingos informacijos apie plastiko pl\u0117veli\u0173 kokyb\u0119. Gamintojai gali pasinaudoti \u0161iais rezultatais, kad patobulint\u0173 savo gamybos procesus ir u\u017etikrint\u0173 pl\u0117veli\u0173 kokyb\u0117s pastovum\u0105.<\/li>\n\n\n\n
          2. Med\u017eiag\u0173 parinkimas:<\/strong> Tokiuose pramon\u0117s sektoriuose kaip pakavimo pramon\u0117, norint u\u017etikrinti pakuojam\u0173 produkt\u0173 apsaug\u0105, itin svarbu pasirinkti pl\u0117veles, pasi\u017eymin\u010dias dideliu atsparumu sm\u016bgiams.<\/li>\n\n\n\n
          3. Atitiktis:<\/strong> Laikantis ASTM D1709<\/strong> u\u017etikrina, kad pl\u0117vel\u0117s atitikt\u0173 tarptautinius atsparumo sm\u016bgiams standartus, tod\u0117l jos tinka \u012fvairiems naudojimo atvejams.<\/li>\n<\/ol>\n\n\n\n

            I\u0161vada<\/h2>\n\n\n\n

            Svetain\u0117 polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymas<\/strong> yra pagrindinis vertinimo metodas, skirtas plastiko pl\u0117veli\u0173 patvarumui nustatyti. Naudojant ASTM D1709<\/strong> Laikydamiesi \u0161io standarto, gamintojai gali u\u017etikrinti, kad j\u0173 pl\u0117vel\u0117s atitikt\u0173 b\u016btinus atsparumo sm\u016bgiams reikalavimus, taikomus \u012fvairioms paskirtims, pavyzd\u017eiui, pakavimui ir tekstil\u0117s gaminiams. Naudodami laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong> u\u017etikrina tikslius ir nuoseklius rezultatus, tod\u0117l tai yra vertinga priemon\u0117 kokyb\u0117s kontrolei \u0161ioje pramon\u0117s \u0161akoje.<\/p>\n\n\n\n

            Norint atlikti tikslesnius ir patikimesnius bandymus, \u201eCell Instruments\u201c UAB.<\/strong> si\u016blo \u012fvairius testavimo sprendimus, \u012fskaitant laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong>, siekiant pad\u0117ti plastikin\u0117s pl\u0117vel\u0117s pramonei i\u0161laikyti auk\u0161tus kokyb\u0117s ir na\u0161umo standartus.<\/p>\n\n\n\n

            <\/p>","protected":false},"excerpt":{"rendered":"

            \u012evadas \u012f polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams su str\u0117le bandym\u0105 Polietileno pl\u0117vel\u0117s pla\u010diai naudojamos pakavimo, tekstil\u0117s ir \u012fvairiose kitose pramon\u0117s \u0161akose. Vienas i\u0161 svarbiausi\u0173 \u0161i\u0173 pl\u0117veli\u0173 kokyb\u0117s rodikli\u0173 yra j\u0173 atsparumas sm\u016bgiams. Polietileno pl\u0117vel\u0117s atsparumo sm\u016bgiams su str\u0117le bandymas yra standartizuotas metodas, skirtas nustatyti plastikini\u0173 pl\u0117veli\u0173 atsparum\u0105 sm\u016bgiams. \u0160is bandymas imituoja realias s\u0105lygas [\u2026]<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1465","post","type-post","status-publish","format-standard","hentry","category-softgel-test"],"yoast_head":"\nPolyethylene Film Dart Impact Test and ASTM D1709 Standards<\/title>\n<meta name=\"description\" content=\"Learn about polyethylene film dart impact test, including resistance of plastic film and ASTM D1709 standards. Discover testing methods, including free falling dart impact tester for accurate film quality control.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.puncturetest.com\/lt\/polyethylene-film-dart-impact-test\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polyethylene Film Dart Impact Test and ASTM D1709 Standards\" \/>\n<meta property=\"og:description\" content=\"Learn about polyethylene film dart impact test, including resistance of plastic film and ASTM D1709 standards. 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