{"id":7580,"date":"2025-11-19T17:09:02","date_gmt":"2025-11-19T09:09:02","guid":{"rendered":"https:\/\/www.qualitester.com\/?page_id=7580"},"modified":"2025-11-24T09:36:22","modified_gmt":"2025-11-24T01:36:22","slug":"astm-d1004","status":"publish","type":"page","link":"https:\/\/www.qualitester.com\/lt\/standards\/astm-d1004\/","title":{"rendered":"ASTM D1004"},"content":{"rendered":"<h1 style=\"text-align: center;\">ASTM D1004<br \/>\n<small>Plastiko pl\u0117veli\u0173 ir lak\u0161t\u0173 atsparumo \u012ftr\u016bkimams bandymas pagal Graveso metod\u0105<\/small><\/h1>\n<p data-start=\"492\" data-end=\"999\">Standartas ASTM D1004 atlieka lemiam\u0105 vaidmen\u012f vertinant pl\u0117\u0161imosi atsparum\u0105 <strong data-start=\"562\" data-end=\"591\">plastikin\u0117 pl\u0117vel\u0117 ir lak\u0161tai<\/strong>, pad\u0117dama gamintojams ir kokyb\u0117s kontrol\u0117s specialistams suprasti, kaip med\u017eiaga elgiasi, kai jai daromas pradin\u012f \u012ftr\u016bk\u012f sukeliantis poveikis. Kadangi pl\u0117vel\u0117s tampa vis plonesn\u0117s, vis labiau funkcionalizuotos ir pla\u010diai naudojamos \u012fvairiose srityse <strong data-start=\"786\" data-end=\"846\">pakuot\u0117s, medicinos prietaisai, vaistai, elektronika<\/strong>, taip pat kitose pramon\u0117s \u0161akose tikslus atsparumo ply\u0161imui \u012fvertinimas tampa b\u016btinas norint prognozuoti eksploatacines savybes ir u\u017ekirsti keli\u0105 gedimams realiomis naudojimo s\u0105lygomis.<\/p>\n<p data-start=\"1001\" data-end=\"1287\">\u0160is metodas yra skirtas <strong data-start=\"1024\" data-end=\"1066\">j\u0117ga, reikalinga ply\u0161imui prad\u0117ti<\/strong>, o ne j\u0117ga, reikalinga jos plitimui. \u0160is akcentas suteikia verting\u0173 \u012f\u017evalg\u0173 apie lanks\u010di\u0173 pl\u0117velini\u0173 strukt\u016br\u0173 patvarum\u0105 ir patikimum\u0105, ypa\u010d t\u0173, kurios naudojamos auk\u0161to saugumo lygio pakavimo srityje.<\/p>\n<hr data-start=\"1289\" data-end=\"1292\" \/>\n<h3 data-start=\"1294\" data-end=\"1341\">Graveso a\u0161ar\u0173 bandymo svarba pagal ASTM D1004 standart\u0105<\/h3>\n<p data-start=\"1451\" data-end=\"1843\">Svetain\u0117 <strong data-start=\"1455\" data-end=\"1475\">Graveso a\u0161ar\u0173 testas<\/strong>, kuris yra pagrindinis ASTM D1004 standarto elementas, naudoja \u012fpjov\u0105 turin\u010dio bandinio geometrij\u0105, kuri sukuria apibr\u0117\u017et\u0105 \u012ftempi\u0173 koncentracij\u0105. Kai med\u017eiaga tempiasi veikiama apkrovos, ply\u0161imas prasideda b\u016btent \u0161ioje kritin\u0117je vietoje. \u0160is <strong data-start=\"1667\" data-end=\"1698\">Graveso atsparumo \u012fpl\u0117\u0161imui bandymas<\/strong> leid\u017eia vartotojams gauti labai palyginamus duomenis, nes bandinio forma, \u012fpjovos matmenys, bandymo greitis ir tvirtinimo b\u016bdas yra standartizuoti.<\/p>\n<p data-start=\"1845\" data-end=\"2258\">Pramon\u0117s \u0161akoms, kurioms svarbu u\u017etikrinti pastovum\u0105 <strong data-start=\"1882\" data-end=\"1922\">plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161t\u0173 atsparumas ply\u0161imui<\/strong>, \u0161is metodas u\u017etikrina didel\u012f prognozavimo tikslum\u0105. Pakuot\u0117s pl\u0117vel\u0117s, naudojamos mai\u0161eliuose, medicininiuose mai\u0161eliuose, blisterin\u0117se pakuot\u0117se ir apsauginiuose laminatuose, da\u017enai patiria lokalius \u012ftempius. Supratimas, kaip med\u017eiaga reaguoja tuo momentu, kai prasideda \u012ftr\u016bkimai, padeda gamintojams tobulinti produkto sud\u0117t\u012f, daugiasluoksn\u0119 strukt\u016br\u0105 ir gamybos proces\u0173 valdym\u0105.<\/p>\n<hr data-start=\"2260\" data-end=\"2263\" \/>\n<h3 data-start=\"2265\" data-end=\"2329\">Pagrindiniai ASTM D1004 atsparumo ply\u0161imui matavimo principai<\/h3>\n<p data-start=\"2331\" data-end=\"2626\">Standarte ASTM D1004 apibr\u0117\u017etas ma\u017eas apkrovos did\u0117jimo greitis, lygus <strong data-start=\"2372\" data-end=\"2385\">51 mm\/min<\/strong>, u\u017etikrinant, kad ply\u0161imas vykt\u0173 esant kontroliuojamai, l\u0117tai apkrovai \u2013 gerokai ma\u017eesnei nei \u012fprastomis naudojimo s\u0105lygomis. Tai leid\u017eia laboratorijoms i\u0161skirti med\u017eiagos chemines savybes, kristalinum\u0105 ir strukt\u016brinius po\u017eymius, i\u0161vengiant dinami\u0161k\u0173 apkrov\u0173 \u012ftakos.<\/p>\n<p data-start=\"2628\" data-end=\"2674\">\u0160\u012f metod\u0105 grind\u017eia keli svarb\u016bs principai:<\/p>\n<ul>\n<li data-start=\"2678\" data-end=\"2805\"><strong data-start=\"2678\" data-end=\"2719\">Tikslus j\u0117gos veikimo prad\u017eios matavimas<\/strong>: Did\u017eiausia j\u0117ga, veikianti netoli ply\u0161imo prad\u017eios, apibr\u0117\u017eia atsparum\u0105 ply\u0161imui.<\/li>\n<li data-start=\"2808\" data-end=\"2965\"><strong data-start=\"2808\" data-end=\"2845\">Grie\u017eta pavyzd\u017ei\u0173 storio kontrol\u0117<\/strong>: Nuokrypiai, vir\u0161ijantys \u00b110%, lemia klaidinan\u010dius rezultatus, nes storis n\u0117ra tiesiogiai susij\u0119s su ply\u0161imo savyb\u0117mis.<\/li>\n<li data-start=\"2968\" data-end=\"3080\"><strong data-start=\"2968\" data-end=\"3004\">Atsiskyrimas pastoviu sukibimo grei\u010diu<\/strong> u\u017etikrina vienodas bandym\u0173 s\u0105lygas visose laboratorijose ir naudojant \u012fvairi\u0173 tip\u0173 prietaisus.<\/li>\n<li data-start=\"3083\" data-end=\"3237\"><strong data-start=\"3083\" data-end=\"3108\">Tinkamos med\u017eiagos<\/strong>: \u0160is metodas geriausiai tinka pl\u0117vel\u0117ms, kurios nesul\u016b\u017eta trapiai ir pernelyg nei\u0161tempia u\u017e ma\u017edaug 200% ribos.<\/li>\n<\/ul>\n<p data-start=\"3239\" data-end=\"3365\">\u0160ie principai padeda u\u017etikrinti, kad laboratorijos gaut\u0173 patikimus duomenis apie atsparum\u0105 ply\u0161imui, nepriklausomai nuo partij\u0173, med\u017eiag\u0173 ir gamybos proces\u0173.<\/p>\n<hr data-start=\"3367\" data-end=\"3370\" \/>\n<h3 data-start=\"3372\" data-end=\"3404\">ASTM D1004 Graveso ply\u0161imo bandymo principas<\/h3>\n<p data-start=\"3406\" data-end=\"3772\">Proced\u016bra prasideda nuo hantelio formos bandini\u0173 paruo\u0161imo, kuri\u0173 abiejose pus\u0117se yra tiksliai i\u0161pjauti \u012fpjovimai. I\u0161matavus stor\u012f aplink \u012fpjovimo viet\u0105, bandinys pritvirtinamas taip, kad i\u0161sipl\u0117t\u0119 galai sutapt\u0173 su laikiklio vidurio linija. \u012erenginys nuolatiniu grei\u010diu atskiria laikiklius, o j\u0117gos kreiv\u0117 leid\u017eia nustatyti did\u017eiausi\u0105 apkrov\u0105, kuri\u0105 pasiekus prasideda \u017eymus ply\u0161imas.<\/p>\n<p data-start=\"3774\" data-end=\"3815\">\u0160iuolaikin\u0117s skaitmenin\u0117s bandymo ma\u0161inos registruoja:<\/p>\n<ul>\n<li data-start=\"3818\" data-end=\"3854\">Maksimalus atsparumas ply\u0161imui (N arba lbf)<\/li>\n<li data-start=\"3857\" data-end=\"3881\">Maksimalus i\u0161sitiesimas (mm)<\/li>\n<li data-start=\"3884\" data-end=\"3925\">Apkrovos ir poslinkio kreiv\u0117s charakteristikos<\/li>\n<li data-start=\"3928\" data-end=\"3988\">Statistiniai parametrai, tokie kaip vidurkis ir standartinis nuokrypis<\/li>\n<\/ul>\n<p data-start=\"3990\" data-end=\"4130\">\u0160ie duomenys padeda laboratorijoms patikrinti med\u017eiag\u0173 nuoseklum\u0105, \u012fvertinti tiek\u0117j\u0173 kokyb\u0119, atlikti mokslini\u0173 tyrim\u0173 ir pl\u0117tros palyginimus bei patvirtinti pakuot\u0117s dizain\u0105.<\/p>\n<hr data-start=\"4132\" data-end=\"4135\" \/>\n<h3 data-start=\"4137\" data-end=\"4191\">Tinkamos \u012frangos pasirinkimas ASTM D1004 bandymams atlikti<\/h3>\n<p><a href=\"https:\/\/www.qualitester.com\/lt\/produktas-2\/tensile-tester-tst-01\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignleft wp-image-7581 size-medium\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets-300x300.webp\" alt=\"ASTM D1004 \u201eGraves\u201c plastiko pl\u0117veli\u0173 ir lak\u0161t\u0173 atsparumo ply\u0161imui bandymas\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets-300x300.webp 300w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets-150x150.webp 150w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets-12x12.webp 12w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets-100x100.webp 100w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/11\/ASTM-D1004-Graves-Tear-Test-of-Plastic-Films-and-Sheets.webp 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p data-start=\"4193\" data-end=\"4393\">Norint u\u017etikrinti patikimus ASTM D1004 standarto reikalavimus atitinkan\u010dius rezultatus, b\u016btina tiksliai kontroliuoti greit\u012f, i\u0161lyginim\u0105 ir apkrovos matavim\u0105. Didelio tikslumo pastovaus sukibimo grei\u010dio atskyrimo bandymo \u012frenginys u\u017etikrina pakartojamus j\u0117gos veikimo prad\u017eios rezultatus.<\/p>\n<p data-start=\"4395\" data-end=\"4820\">Puikus pasirinkimas laboratorijoms, siekian\u010dioms atlikti patikimus ir efektyvius tyrimus, yra <strong data-start=\"4476\" data-end=\"4520\">\u201eCell Instruments\u201c TST-01 <a href=\"https:\/\/www.qualitester.com\/lt\/produktas-2\/tensile-tester-tst-01\/\" target=\"_blank\" rel=\"noopener\">Tempimo testeris<\/a><\/strong>. \u0160is modelis tinka lanks\u010dioms plastmas\u0117ms, pl\u0117vel\u0117ms ir laminatams, u\u017etikrina stabil\u0173 sukibimo valdym\u0105, programuojamus grei\u010dio nustatymus ir auk\u0161tos skiriamosios gebos apkrovos jutiklius. D\u0117l jo universalumo laboratorijos gali laikytis ne tik ply\u0161imo bandym\u0173, bet ir kit\u0173 standart\u0173, taip u\u017etikrindamos platesnes kokyb\u0117s u\u017etikrinimo bei mokslini\u0173 tyrim\u0173 ir pl\u0117tros darbo eigas.<\/p>\n<p data-start=\"4822\" data-end=\"5000\">Pasirinkus patikim\u0105 prietais\u0105 ne tik u\u017etikrinamas geresnis atitikimas ASTM D1004 standartui, bet ir pager\u0117ja <strong data-start=\"4910\" data-end=\"4930\">duomen\u0173 patikimumas<\/strong>, suma\u017eina operatoriaus klaid\u0173 tikimyb\u0119 ir u\u017etikrina ilgalaik\u0119 kokyb\u0117s kontrol\u0119.<\/p>\n<hr data-start=\"5002\" data-end=\"5005\" \/>\n<h2 data-start=\"310\" data-end=\"349\"><strong data-start=\"313\" data-end=\"349\">Da\u017enai u\u017eduodami klausimai apie ASTM D1004 Graveso ply\u0161imo bandym\u0105<\/strong><\/h2>\n<p data-start=\"351\" data-end=\"383\"><strong data-start=\"355\" data-end=\"381\">1. Kas yra ASTM D1004?<br \/>\n<\/strong><a href=\"https:\/\/www.astm.org\/d1004-21.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D1004<\/a> yra standartizuotas bandymo metodas, naudojamas matuoti <strong data-start=\"445\" data-end=\"475\">atsparumas \u012ftr\u016bkim\u0173 susidarymui<\/strong> lanks\u010di\u0173 plastikini\u0173 pl\u0117veli\u0173 ir lak\u0161t\u0173, taikant \u201eGraves\u201c \u012fpl\u0117\u0161imo geometrij\u0105. \u0160iuo metodu \u012fvertinama did\u017eiausia j\u0117ga, reikalinga \u012fpl\u0117\u0161imui prad\u0117ti kontroliuojamomis, ma\u017eo grei\u010dio apkrovos s\u0105lygomis.<\/p>\n<p data-start=\"658\" data-end=\"700\"><strong data-start=\"662\" data-end=\"698\">2. Kas yra Graveso a\u0161ar\u0173 testas?<br \/>\n<\/strong>Atpl\u0117\u0161imo bandyme naudojamas \u012fpjovotas, hantelio formos bandinys, skirtas \u012ftempi\u0173 koncentracijos ta\u0161kui sukurti. Traukiant pastoviu grei\u010diu, bandymu nustatoma <strong data-start=\"859\" data-end=\"903\">did\u017eiausia j\u0117ga, kuriai veikiant prasideda ply\u0161imas<\/strong>, suteikianti \u012f\u017evalg\u0173 apie filmo patvarum\u0105 ir atsparum\u0105.<\/p>\n<p data-start=\"1666\" data-end=\"1729\"><strong data-start=\"1670\" data-end=\"1727\">3. Kuo ASTM D1004 skiriasi nuo kit\u0173 atsparumo ply\u0161imui bandym\u0173?<br \/>\n<\/strong>Standartas ASTM D1004 yra skirtas b\u016btent <strong data-start=\"1765\" data-end=\"1784\">a\u0161ar\u0173 susidarymas<\/strong>, o tokie bandymai kaip ASTM D1922 matuoja <strong data-start=\"1825\" data-end=\"1845\">ply\u0161imo plitimas<\/strong>. D\u0117l to D1004 yra ypa\u010d vertingas tiriant med\u017eiagas, kurioms atsparumas \u012fpl\u0117\u0161imo prad\u017eiai yra svarbesnis nei \u012fpl\u0117\u0161imo plitimas.<\/p>\n<p data-start=\"1730\" data-end=\"1992\"><strong>4. Koks yra reikalaujamas bandymo greitis pagal ASTM D1004 standart\u0105?<br \/>\n<\/strong>Rankenos turi atsiskirti ties <strong data-start=\"2087\" data-end=\"2111\">51 mm\/min (2 coliai\/min)<\/strong>. \u0160io grei\u010dio i\u0161laikymas yra b\u016btinas norint gauti tikslius ir palyginamus rezultatus.<\/p>\n<p data-start=\"1730\" data-end=\"1992\"><strong>5. Kokia \u012franga tinka ASTM D1004 bandymams atlikti?<\/strong><br \/>\nReikalingas pastovaus sukibimo grei\u010dio atskyrimo bandymo \u012frenginys su tiksliu grei\u010dio reguliavimu ir stabiliu sukibimu. Tokie prietaisai kaip <strong data-start=\"2925\" data-end=\"2969\">\u201eCell Instruments\u201c TST-01 universalus testeris<\/strong> u\u017etikrina tikslius, pakartojamus rezultatus ir palaiko \u012fvairius pl\u0117vel\u0117s tyrimo metodus.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D1004 Graves Tear Test of Plastic Films and Sheets ASTM D1004 plays a critical role in evaluating the tear resistance of plastic film and sheeting, helping manufacturers and quality control personnel understand how a material behaves when subjected to an initiating tear. As films become thinner, more functionalized, and widely used across packaging, medical &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.qualitester.com\/lt\/standards\/astm-d1004\/\"> <span class=\"screen-reader-text\">ASTM D1004<\/span> Skaityti daugiau \"<\/a><\/p>","protected":false},"author":4,"featured_media":0,"parent":4948,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"class_list":["post-7580","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/7580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/comments?post=7580"}],"version-history":[{"count":0,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/7580\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/4948"}],"wp:attachment":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/media?parent=7580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}