{"id":1202,"date":"2025-07-15T08:41:08","date_gmt":"2025-07-15T08:41:08","guid":{"rendered":"https:\/\/www.wrapfilmtest.com\/?p=1202"},"modified":"2026-01-15T06:03:48","modified_gmt":"2026-01-15T06:03:48","slug":"wrap-stretch-film","status":"publish","type":"post","link":"https:\/\/www.wrapfilmtest.com\/lv\/wrap-stretch-film","title":{"rendered":"Stiepes pl\u0113ves test\u0113\u0161anas rokasgr\u0101mata, pamatojoties uz ASTM D882 standartu"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Iepaz\u012bstin\u0101\u0161ana ar iet\u012b\u0161anas stiepes pl\u0113ves test\u0113\u0161anu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Stretch pl\u0113vei ir iz\u0161\u0137iro\u0161a noz\u012bme iepako\u0161anas un lo\u0123istikas jom\u0101. T\u0101s sp\u0113ja dro\u0161i iesai\u0146ot produktus, vienlaikus saglab\u0101jot elast\u012bbu, iztur\u012bbu un iztur\u012bbu stresa apst\u0101k\u013cos, ir b\u016btiska. Lai nodro\u0161in\u0101tu kvalit\u0101ti un konsekvenci, ra\u017eot\u0101ji un kvalit\u0101tes kontroles komandas bie\u017ei pa\u013caujas uz <strong><a href=\"https:\/\/www.wrapfilmtest.com\/lv\/astm-d882\/\">ASTM D882<\/a><\/strong>, kas ir visp\u0101rpie\u0146emts standarts, lai noteiktu <strong>stiepes \u012bpa\u0161\u012bbas<\/strong> pl\u0101nas plastmasas lok\u0161\u0146u pl\u0113ves, piem\u0113ram, stretch pl\u0113ves. \u0160aj\u0101 rokasgr\u0101mat\u0101 m\u0113s iepaz\u012bstin\u0101sim ar to, k\u0101 veikt <strong>iesai\u0146o\u0161anas pl\u0113ve<\/strong> testus efekt\u012bvi - jo \u012bpa\u0161i <strong>stiepes iztur\u012bbas testi<\/strong>, <strong>pagarin\u0101juma testi<\/strong>, un visp\u0101r\u012bgi <strong>stiepes pl\u0113ves testi<\/strong>-lai nodro\u0161in\u0101tu atbilst\u012bbu, veiktsp\u0113ju un produktu dro\u0161\u012bbu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Izpratne par ASTM D882 un t\u0101 pielietojums stiepes pl\u0113ves iet\u012b\u0161anai<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM D882 nosaka prec\u012bzu metodolo\u0123iju pl\u0101nas plastmasas pl\u0113ves test\u0113\u0161anai, kas ietver. <strong>iesai\u0146o\u0161anas pl\u0113ve<\/strong> ko izmanto pale\u0161u iesai\u0146o\u0161anai, lo\u0123istikas iesai\u0146o\u0161anai un produktu sai\u0146o\u0161anai. Standart\u0101 ir nor\u0101d\u012bti testa parametri, paraugu izm\u0113ri, test\u0113\u0161anas \u0101trums un nepiecie\u0161amais apr\u012bkojums stiepes \u012bpa\u0161\u012bbu, piem\u0113ram, stiepes iztur\u012bbas, pagarin\u0101juma un elast\u012bbas modu\u013ca, m\u0113r\u012b\u0161anai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At\u0161\u0137ir\u012bb\u0101 no biez\u0101kas plastmasas, kas test\u0113ta saska\u0146\u0101 ar ASTM D638, <a href=\"https:\/\/store.astm.org\/d0882-18.html\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D882<\/a> ir piel\u0101gota pl\u0101n\u0101k\u0101m un elast\u012bg\u0101k\u0101m pl\u0113v\u0113m, t\u0101p\u0113c t\u0101 ir ide\u0101li piem\u0113rota stieptas pl\u0113ves test\u0113\u0161anai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Stiepes stiepes pl\u0113ves stiepes iztur\u012bbas tests<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>stiepes iztur\u012bbas tests<\/strong> nosaka maksim\u0101lo sp\u0113ku, ko var iztur\u0113t iesai\u0146ojuma stiepes pl\u0113ve, pirms t\u0101 p\u0101rtr\u016bkst. \u0160\u012b \u012bpa\u0161\u012bba nor\u0101da, cik iztur\u012bga ir pl\u0113ve pret vilk\u0161anas sp\u0113ku, kas ir \u013coti svar\u012bgi, kad t\u0101 tiek izstiepta virs palikt\u0146iem vai produktiem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Galvenie veicamie so\u013ci:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-embed alignright is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ASTM D882 plastmasas pl\u0113ves stiepes un pagarin\u0101juma testa darb\u012bba ar TST-01 stiepes testeri\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/GekylTFLo0Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Parauga sagatavo\u0161ana:<\/strong> Sagrieziet vien\u0101da platuma (parasti 15-25,4 mm) un biezuma pl\u0113ves sloksnes. Paraugam j\u0101b\u016bt vismaz 50 mm gar\u0101kam par satv\u0113riena atdal\u012b\u0161anu.<\/li>\n\n\n\n<li><strong>Testa iestat\u012b\u0161ana:<\/strong> Uzst\u0101diet paraugu stiepes test\u0113\u0161anas iek\u0101rt\u0101 ar <strong>nemain\u012bgs kruste\u0146galvas kust\u012bbas \u0101trums<\/strong>.<\/li>\n\n\n\n<li><strong>Testa izpilde:<\/strong> Izstiepiet pl\u0113vi ar iepriek\u0161 noteiktu \u0101trumu (pamatojoties uz s\u0101kotn\u0113jo deform\u0101cijas \u0101trumu). Re\u0123istr\u0113jiet sp\u0113ka un stiepes l\u012bkni, l\u012bdz pl\u0113ve p\u0101rtr\u016bkst.<\/li>\n\n\n\n<li><strong>Rezult\u0101tu interpret\u0101cija:<\/strong> Apr\u0113\u0137iniet stiepes iztur\u012bbu, dalot maksim\u0101lo slodzi ar parauga \u0161\u0137\u0113rsgriezuma laukumu.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Stiepes pl\u0113ves pagarin\u0101juma tests<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>pagarin\u0101juma tests<\/strong> nov\u0113rt\u0113 pl\u0113ves sp\u0113ju izstiepties pirms pl\u0113ves p\u0101rr\u0101vuma, kas ir svar\u012bgs t\u0101s elast\u012bbas un slodzes notur\u012bbas r\u0101d\u012bt\u0101js.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pagarin\u0101juma test\u0113\u0161anas process:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Izmantojiet to pa\u0161u paraugu, ko stiepes iztur\u012bbas p\u0101rbaudei.<\/li>\n\n\n\n<li>Testa laik\u0101 izm\u0113riet, cik \u013coti pl\u0113ve pagarin\u0101s no s\u0101kotn\u0113j\u0101 garuma, pirms t\u0101 p\u0101rtr\u016bkst.<\/li>\n\n\n\n<li>Pagarin\u0101jums ir izteikts procentos:<br>Pagarin\u0101jums (%) = (L<sub>gal\u012bgais<\/sub> - L<sub>ori\u0123in\u0101ls<\/sub>) \u00f7 L<sub>ori\u0123in\u0101ls<\/sub> \u00d7 100<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>ASTM D882 standarts<\/strong> sniedz vadl\u012bnijas par piem\u0113rotiem m\u0113rier\u012b\u010du garumiem un deform\u0101cijas \u0101trumiem, lai nodro\u0161in\u0101tu reproduc\u0113jam\u012bbu un precizit\u0101ti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Stretch pl\u0113ves testa apsv\u0113rumi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Papildus stiepes un pagarin\u0101juma \u012bpa\u0161\u012bb\u0101m, <strong>iesai\u0146o\u0161anas pl\u0113ve<\/strong> testos var veikt \u0161\u0101dus m\u0113r\u012bjumus:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Elast\u012bbas modulis<\/strong> - nor\u0101da pl\u0113ves st\u012bvumu.<\/li>\n\n\n\n<li><strong>Sekanta modulis<\/strong> - ko izmanto zemas stiepes pl\u0113ves klas\u0113m.<\/li>\n\n\n\n<li><strong>Ener\u0123ija, lai izjauktu<\/strong> - kop\u0113j\u0101 ener\u0123ija, kas absorb\u0113ta l\u012bdz boj\u0101jumam.<\/li>\n\n\n\n<li><strong>Ienes\u012bguma punkts<\/strong> - punkts, kur\u0101 s\u0101kas past\u0101v\u012bga deform\u0101cija.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM D882 pie\u013cauj ekstensometra izmanto\u0161anu augstas precizit\u0101tes deform\u0101cijas m\u0113r\u012bjumiem un iesaka veikt testus gan ma\u0161\u012bnvirzien\u0101, gan \u0161\u0137\u0113rsvirzien\u0101, lai \u0146emtu v\u0113r\u0101 pl\u0113ves anizotropiju.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Stretch pl\u0113ves test\u0113\u0161anas paraugprakse<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lai ieg\u016btu prec\u012bzus un atk\u0101rtojamus rezult\u0101tus:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uztur\u0113t nemain\u012bgus testa apst\u0101k\u013cus: temperat\u016bru, mitrumu un pl\u0113ves orient\u0101ciju.<\/li>\n\n\n\n<li>Izmantojiet <strong>vismaz pieci eksempl\u0101ri<\/strong> izotrop\u0101m pl\u0113v\u0113m un <strong>desmit<\/strong> ja ir aizdomas par anizotropiju.<\/li>\n\n\n\n<li>Izvairieties no \u017eok\u013ca p\u0101rtraukumiem, ja vien nav statistiski pier\u0101d\u012bts, ka tie atspogu\u013co der\u012bgu veiktsp\u0113ju.<\/li>\n\n\n\n<li><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">P\u0101rliecinieties, ka parauga biezums un platums nep\u0101rsniedz pielaides robe\u017eas, k\u0101 noteikts ASTM D882 7. ieda\u013c\u0101.<\/font><\/font><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pareiz\u0101 apr\u012bkojuma izv\u0113le<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-8f761849 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\"><font style=\"vertical-align: inherit\"><\/font><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">Precizit\u0101te <strong>iesai\u0146o\u0161anas pl\u0113ve<\/strong> test\u0113\u0161ana ir \u013coti atkar\u012bga no test\u0113\u0161anas iek\u0101rtas veiktsp\u0113jas. Laboratorij\u0101m, kas v\u0113las ieg\u016bt uzticamus un atbilsto\u0161us rezult\u0101tus, ir nepiecie\u0161ams izmantot <strong>\u0160\u016bnu instrumenti <\/strong><a href=\"https:\/\/www.wrapfilmtest.com\/lv\/tensile-and-elongation-tester\/\"><strong>TST-01 stiepes un pagarin\u0101juma testeris<\/strong> <\/a>ir dro\u0161a izv\u0113le. Tas atbalsta programm\u0113jamus test\u0113\u0161anas \u0101trumus, ir apr\u012bkots ar prec\u012bz\u0101m slodzes \u0161\u016bn\u0101m un ir izstr\u0101d\u0101ts atbilsto\u0161i ASTM D882 pras\u012bb\u0101m. Neatkar\u012bgi no t\u0101, vai veicat ikdienas kvalit\u0101tes kontroli vai progres\u012bvu materi\u0101lu izp\u0113ti, \u0161is instruments nodro\u0161ina uzticamus datus.<\/font><\/font><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester-.webp\" alt=\"iesai\u0146o\u0161anas pl\u0113ve\" class=\"wp-image-1208\" style=\"width:327px;height:auto\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester-.webp 600w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester--400x400.webp 400w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester--280x280.webp 280w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester--12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">TST-01 stiepes un pagarin\u0101juma testeris<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Secin\u0101jums<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prec\u012bza test\u0113\u0161ana <strong>iesai\u0146o\u0161anas pl\u0113ve<\/strong> nodro\u0161ina produkta uzticam\u012bbu, atbilst\u012bbu normat\u012bvajiem aktiem un gala lietot\u0101ju apmierin\u0101t\u012bbu. Iev\u0113rojot ASTM D882 proced\u016bras <strong>stiepes iztur\u012bbas testi<\/strong>, <strong>pagarin\u0101juma testi<\/strong>, un citi <strong>stiepes pl\u0113ves testi<\/strong>, ra\u017eot\u0101ji var p\u0101rbaud\u012bt pl\u0113ves veiktsp\u0113ju re\u0101los apst\u0101k\u013cos. Izmantojot modernus instrumentus, piem. <strong>TST-01 no <a href=\"https:\/\/www.wrapfilmtest.com\/lv\/\">\u0160\u016bnu instrumenti<\/a><\/strong>, \u0161ie testi k\u013c\u016bst ne tikai uzticami, bet ar\u012b efekt\u012bvi un m\u0113rogojami ra\u017eo\u0161anas vajadz\u012bb\u0101m.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ievads stiegrojuma pl\u0113ves test\u0113\u0161an\u0101 Stiegrojuma pl\u0113vei ir iz\u0161\u0137iro\u0161a noz\u012bme iepako\u0161anas un lo\u0123istikas jom\u0101. T\u0101s sp\u0113ja dro\u0161i iesai\u0146ot produktus, vienlaikus saglab\u0101jot elast\u012bbu, iztur\u012bbu un iztur\u012bbu stresa apst\u0101k\u013cos, ir b\u016btiska. Lai nodro\u0161in\u0101tu kvalit\u0101ti un konsekvenci, ra\u017eot\u0101ji un kvalit\u0101tes kontroles komandas bie\u017ei vien izmanto ASTM D882, kas ir pla\u0161i atz\u012bts standarts, lai noteiktu, vai [...]","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1202","post","type-post","status-publish","format-standard","hentry","category-wrap-film-test"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Test Wrap Stretch Film per ASTM D882 Guidelines - Wrap Film Test<\/title>\n<meta name=\"description\" content=\"Discover how to perform wrap stretch film testing. 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