{"id":100,"date":"2025-12-24T08:27:09","date_gmt":"2025-12-24T08:27:09","guid":{"rendered":"https:\/\/www.impacttesting.net\/?p=100"},"modified":"2025-12-24T08:27:11","modified_gmt":"2025-12-24T08:27:11","slug":"dart-impact-testing-of-polyethylene-film","status":"publish","type":"post","link":"https:\/\/www.impacttesting.net\/lv\/dart-impact-testing-of-polyethylene-film\/","title":{"rendered":"Polietil\u0113na pl\u0113ves triecientest\u0113\u0161ana ar \u0161auteni: ASTM D1709 rokasgr\u0101mata"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Polietil\u0113na pl\u0113ves triecientest\u0113\u0161ana ar \u0161autri\u0146\u0101m saska\u0146\u0101 ar ASTM D1709<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Ievads polietil\u0113na pl\u0113ves trieciena test\u0113\u0161an\u0101 ar \u0161autri\u0146\u0101m<\/h2>\n\n\n\n<p>Polietil\u0113na pl\u0113ves tiek pla\u0161i izmantotas iepako\u0161an\u0101, pateicoties to iztur\u012bbai, elast\u012bbai un vieglaj\u0101m \u012bpa\u0161\u012bb\u0101m. Tom\u0113r, lai nodro\u0161in\u0101tu to veiktsp\u0113ju p\u0101rvad\u0101\u0161anas un p\u0101rkrau\u0161anas laik\u0101, ir b\u016btiski izprast to meh\u0101nisko uzved\u012bbu, jo \u012bpa\u0161i p\u0113k\u0161\u0146u triecienu gad\u012bjum\u0101.&nbsp;<strong>Polietil\u0113na pl\u0113ves trieciena test\u0113\u0161ana ar \u0161autri\u0146\u0101m<\/strong>&nbsp;pied\u0101v\u0101 uzticamu veidu, k\u0101 nov\u0113rt\u0113t pl\u0113ves iztur\u012bbu pret pl\u012bsumiem, kad tai tr\u0101pa br\u012bvi kr\u012bto\u0161a \u0161autri\u0146a. Viens no atz\u012bt\u0101kajiem \u0161\u0101da nov\u0113rt\u0113juma standartiem ir&nbsp;<a href=\"https:\/\/www.impacttesting.net\/lv\/astm-d1709\/\"><strong>ASTM D1709<\/strong><\/a>, kur\u0101 ir noteikta metodolo\u0123ija un aparat\u016bra, kas paredz\u0113ta&nbsp;<strong>trieciena \u0161autri\u0146u tests<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u0101rskats par ASTM D1709 un trieciena \u0161autri\u0146u test\u0113\u0161anas metod\u0113m<\/h2>\n\n\n\n<figure class=\"wp-block-embed 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=\"Trieciena testeris ar kr\u012bto\u0161u \u0161autri\u0146u uz pl\u0101k\u0161\u0146u pl\u0113ves un loksnes A metode un B metode ASTM D1709 ISO 7765-1\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/a3_9M0x3w7U?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<p>ASTM D1709 apraksta divas standartiz\u0113tas proced\u016bras.<strong>Testa metode A<\/strong>&nbsp;un&nbsp;<strong>Testa metode B<\/strong>-lai noteiktu&nbsp;<strong>triecieniztur\u012bba<\/strong>&nbsp;plastmasas pl\u0113ves. \u0160\u012bs metodes ietver puslodes formas \u0161autri\u0146as nome\u0161anu uz saspiesta pl\u0113ves parauga un boj\u0101juma nov\u0113rt\u0113\u0161anu noteiktos apst\u0101k\u013cos.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Testa metode A<\/strong>\u00a0izmanto\u00a0<strong>38,10 mm \u0161autri\u0146u galvi\u0146a<\/strong>\u00a0samazin\u0101ts no\u00a0<strong>0,66 metri<\/strong>, kas piem\u0113rojams film\u0101m, kuras ietilpst\u00a0<strong>50 g l\u012bdz 6 kg<\/strong>.<\/li>\n\n\n\n<li><strong>Testa metode B<\/strong>\u00a0izmanto\u00a0<strong>50,80 mm \u0161autri\u0146u galvi\u0146a<\/strong>\u00a0samazin\u0101ts no\u00a0<strong>1,52 metri<\/strong>, piem\u0113rots\u00a0<strong>0,3 kg l\u012bdz 6 kg<\/strong>\u00a0ietekmes l\u012bme\u0146i.<\/li>\n<\/ul>\n\n\n\n<p>Galvenais rezult\u0101ts ir&nbsp;<strong>trieciena boj\u0101juma svars (WF)<\/strong>-svars, pie kura 50% test\u0113to paraugu neiztur, kas ir pl\u0113ves triecieniztur\u012bbas kvantitat\u012bvs r\u0101d\u012bt\u0101js.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Testa iestat\u012b\u0161ana un parauga kondicion\u0113\u0161ana<\/h2>\n\n\n\n<p>Pareiza kondicion\u0113\u0161ana un paraugu sagatavo\u0161ana nodro\u0161ina testa precizit\u0101ti un atk\u0101rtojam\u012bbu. Saska\u0146\u0101 ar ASTM D1709:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>St\u0101vok\u013ca filmas<\/strong>\u00a0vietn\u0113\u00a0<strong>23\u00b0C \u00b12\u00b0C<\/strong>\u00a0un\u00a0<strong>50% \u00b110% RH<\/strong>\u00a0vismaz\u00a0<strong>40 stundas<\/strong>\u00a0pirms test\u0113\u0161anas.<\/li>\n\n\n\n<li><strong>Paraugi<\/strong>\u00a0j\u0101b\u016bt bez defektiem (caurumiem, krok\u0101m vai krok\u0101m) un pietiekami lielam, lai tas var\u0113tu izstiepties \u0101rpus skavas bl\u012bv\u0113m.<\/li>\n\n\n\n<li>Izv\u0113lieties testa metodi (A vai B), pamatojoties uz paredzamo pl\u0113ves stipr\u012bbas diapazonu.<\/li>\n<\/ul>\n\n\n\n<p>Lai ieg\u016btu ticamus rezult\u0101tus, test\u0113\u0161ana j\u0101veic kontrol\u0113t\u0101 vid\u0113, izmantojot kalibr\u0113tu un pareizi noregul\u0113tu apr\u012bkojumu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0160autri\u0146u trieciena test\u0113\u0161anas proced\u016bra: K\u0101p\u0146u metode pret grupu metodi.<\/h2>\n\n\n\n<p>At\u013cautas divas metodes saska\u0146\u0101 ar&nbsp;<a href=\"https:\/\/store.astm.org\/d1709-22.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D1709<\/a>: : the&nbsp;<strong>k\u0101pnes (uz aug\u0161u\/uz leju)<\/strong>&nbsp;metodi un&nbsp;<strong>alternat\u012bv\u0101 grupa<\/strong>&nbsp;metode. Abu meto\u017eu m\u0113r\u0137is ir atrast \u0161autri\u0146u svaru, kas izraisa 50% paraugu neveiksmi.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u0101p\u0146u metode<\/strong>: P\u0113c katra testa pak\u0101peniski noregul\u0113jiet \u0161autri\u0146as svaru, pamatojoties uz to, vai iepriek\u0161\u0113jais paraugs iztur\u0113jis vai neiztur\u0113jis testu. Test\u0113\u0161ana turpin\u0101s, l\u012bdz\u00a0<strong>10 neveiksmes un 10 neveiksmes<\/strong>\u00a0tiek ieg\u016bti.<\/li>\n\n\n\n<li><strong>Grupas metode<\/strong>: Testa paraugi\u00a0<strong>grupas pa 10 vien\u012bb\u0101m<\/strong>\u00a0ar t\u0101du pa\u0161u svaru, p\u0113c tam mainiet \u0161autri\u0146u masu n\u0101kamajai grupai. \u0160ai metodei nepiecie\u0161ami vismaz pieci datu punkti, s\u0101kot no\u00a0<strong>0% l\u012bdz 100% k\u013c\u016bmes<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>WF (trieciena boj\u0101juma svars)<\/strong>&nbsp;apr\u0113\u0137ina matem\u0101tiski vai izmantojot grafisko interpol\u0101ciju, lai noteiktu svaru, kas atbilst 50% k\u013c\u016bdu koeficientam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u0101p\u0113c polietil\u0113na pl\u0113ves triecientestiem ir noz\u012bme<\/h2>\n\n\n\n<p>\u0160is tests imit\u0113 re\u0101lus scen\u0101rijus, piem\u0113ram, kritienus p\u0101rvad\u0101\u0161anas vai iekrau\u0161anas laik\u0101, t\u0101d\u0113j\u0101di pal\u012bdzot ra\u017eot\u0101jiem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Izv\u0113l\u0113ties piem\u0113rotu pl\u0113ves biezumu un sast\u0101vu<\/li>\n\n\n\n<li>Paredz\u0113t lauka veiktsp\u0113ju<\/li>\n\n\n\n<li>Nodro\u0161in\u0101t produktu aizsardz\u012bbu tranz\u012bta laik\u0101<\/li>\n\n\n\n<li>Atbilst\u00a0<strong>nozares un normat\u012bvie standarti<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Tas pal\u012bdz ar\u012b&nbsp;<strong>kvalit\u0101tes nodro\u0161in\u0101\u0161ana<\/strong>&nbsp;un&nbsp;<strong>P\u0112TNIEC\u012aBA UN IZSTR\u0100DE<\/strong>&nbsp;identific\u0113jot meh\u0101niskos tr\u016bkumus, pirms iepakojums non\u0101k ra\u017eo\u0161an\u0101 vai pieg\u0101des \u0137\u0113d\u0113.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pareiz\u0101 apr\u012bkojuma izv\u0113le: FDT-01 \u0161autenes trieciena testeris no Cell Instruments<\/h2>\n\n\n\n<figure class=\"wp-block-image alignleft size-full\"><img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709.webp\" alt=\"Polietil\u0113na pl\u0113ves triecientest\u0113\u0161ana ar \u0161autri\u0146\u0101m saska\u0146\u0101 ar ASTM D1709\" class=\"wp-image-104\" srcset=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709.webp 600w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709-400x400.webp 400w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709-280x280.webp 280w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p>Izpild\u012bt&nbsp;<strong>polietil\u0113na pl\u0113ves trieciena test\u0113\u0161ana ar \u0161autri\u0146u<\/strong>&nbsp;saska\u0146\u0101 ar&nbsp;<strong>ASTM D1709<\/strong>, test\u0113\u0161anas iek\u0101rtu precizit\u0101te un uzticam\u012bba ir \u013coti svar\u012bga.&nbsp;<strong>Cell Instruments'&nbsp;<a href=\"https:\/\/www.impacttesting.net\/lv\/falling-dart-impact-tester\/\">FDT-01<\/a>&nbsp;\u0160autri\u0146u trieciena testeris<\/strong>&nbsp;ir \u012bpa\u0161i izstr\u0101d\u0101ts \u0161im nol\u016bkam, pied\u0101v\u0101jot:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Atbalsta gan A, gan B test\u0113\u0161anas metodes<\/strong><\/li>\n\n\n\n<li><strong>Regul\u0113jams \u0161autri\u0146u izlai\u0161anas augstums un galvas<\/strong><\/li>\n\n\n\n<li><strong>Lietot\u0101jam draudz\u012bgas saskarnes<\/strong>\u00a0\u0101trai iestat\u012b\u0161anai un datu re\u0123istr\u0113\u0161anai<\/li>\n\n\n\n<li><strong>Atbilst\u012bgs dizains<\/strong>\u00a0ar ASTM un ISO standartiem<\/li>\n<\/ul>\n\n\n\n<p>Neatkar\u012bgi no t\u0101, vai str\u0101d\u0101jat iepakojuma izp\u0113tes un izstr\u0101des, kvalit\u0101tes kontroles vai ra\u017eo\u0161anas jom\u0101.&nbsp;<strong>FDT-01<\/strong>&nbsp;nodro\u0161ina konsekventus, reproduc\u0113jamus rezult\u0101tus, kas ir \u013coti svar\u012bgi l\u0113mumu pie\u0146em\u0161anai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lab\u0101k\u0101 prakse un apsv\u0113rumi<\/h2>\n\n\n\n<p>Lai maksim\u0101li palielin\u0101tu \u0161autri\u0146u trieciena test\u0113\u0161anas efektivit\u0101ti:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vienm\u0113r\u00a0<strong>p\u0101rbaud\u012bt \u0161autri\u0146u galvas st\u0101vokli<\/strong>\u00a0skr\u0101p\u0113jumiem vai nodilumu.<\/li>\n\n\n\n<li>Nodro\u0161in\u0101t\u00a0<strong>prec\u012bza saska\u0146o\u0161ana<\/strong>\u00a0\u0161autri\u0146u, lai trieciens b\u016btu centr\u0113ts.<\/li>\n\n\n\n<li><strong>Izvairieties no p\u0101rm\u0113r\u012bgas pas\u012bv\u0101s izteiksm\u012bbas<\/strong>\u00a0zi\u0146ojumos, lai saglab\u0101tu skaidr\u012bbu.<\/li>\n\n\n\n<li>Sistem\u0101tiski re\u0123istr\u0113jiet visus rezult\u0101tus, lai prec\u012bzi apr\u0113\u0137in\u0101tu WF.<\/li>\n<\/ul>\n\n\n\n<p>\u0145emiet v\u0113r\u0101, ka&nbsp;<strong>testa rezult\u0101ti ir \u013coti atkar\u012bgi no materi\u0101la \u012bpa\u0161\u012bb\u0101m<\/strong>tostarp biezums, dzidrums, piedevas un viendab\u012bgums. Lai nodro\u0161in\u0101tu der\u012bgu sal\u012bdzino\u0161o nov\u0113rt\u0113\u0161anu, sal\u012bdziniet datus tikai no l\u012bdz\u012bgas strukt\u016bras un biezuma pl\u0113v\u0113m (\u00b1 25%).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Secin\u0101jums<\/h2>\n\n\n\n<p>Izpratne un piem\u0113ro\u0161ana&nbsp;<strong>polietil\u0113na pl\u0113ves trieciena test\u0113\u0161ana ar \u0161autri\u0146u<\/strong>&nbsp;izmantojot&nbsp;<strong>ASTM D1709<\/strong>&nbsp;nodro\u0161ina, ka iepakojuma materi\u0101li atbilst stingr\u0101m triecieniztur\u012bbas pras\u012bb\u0101m. Izmantojot standartiz\u0113tus testus un prec\u012bzus instrumentus, piem.&nbsp;<strong><a href=\"https:\/\/www.impacttesting.net\/lv\/\">Cell Instruments<\/a>&nbsp;FDT-01<\/strong>, iepako\u0161anas profesion\u0101\u013ci var dro\u0161i apstiprin\u0101t pl\u0113ves iztur\u012bbu, samazin\u0101t produktu zudumus un uzlabot gala lietot\u0101ju apmierin\u0101t\u012bbu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bie\u017e\u0101k uzdotie jaut\u0101jumi<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u00a0Ko m\u0113ra ar \u0161autri\u0146u trieciena testu polietil\u0113na pl\u0113v\u0113s?<\/strong><br>Ar to m\u0113ra ener\u0123iju, kas nepiecie\u0161ama, lai izrais\u012btu pl\u0113ves boj\u0101jumu (pl\u012bsumu) zem br\u012bvi kr\u012bto\u0161as \u0161autri\u0146as, kas izteikta k\u0101 svars, kur\u0161 izraisa 50% boj\u0101jumu.<\/li>\n\n\n\n<li><strong>\u00a0K\u0101da ir at\u0161\u0137ir\u012bba starp ASTM D1709 A un B testa metodi?<\/strong><br>A metod\u0113 izmanto maz\u0101ku \u0161autri\u0146u (38,10 mm), kas iz\u0161auta no 0,66 m, bet B metod\u0113 izmanto liel\u0101ku \u0161autri\u0146u (50,80 mm), kas iz\u0161auta no 1,52 m, aptverot da\u017e\u0101dus pl\u0113ves stipr\u012bbas diapazonus.<\/li>\n\n\n\n<li><strong>\u00a0K\u0101p\u0113c \u0161autri\u0146u trieciena test\u0113\u0161an\u0101 bie\u017ei vien priek\u0161roka tiek dota k\u0101p\u0146u metodei?<\/strong><br>Tas nodro\u0161ina efekt\u012bv\u0101ku 50% boj\u0101juma svara noteik\u0161anu ar maz\u0101ku paraugu skaitu, sal\u012bdzinot ar fiks\u0113ta svara grupas test\u0113\u0161anu.<\/li>\n\n\n\n<li><strong>\u00a0K\u0101 kondicion\u0113t polietil\u0113na pl\u0113ves paraugus pirms test\u0113\u0161anas?<\/strong><br>Pirms test\u0113\u0161anas j\u0101uztur 23 \u00b0C \u00b1 2 \u00b0C temperat\u016br\u0101 un 50% \u00b1 10% relat\u012bv\u0101 mitruma re\u017e\u012bm\u0101 vismaz 40 stundas, lai stabiliz\u0113tu pl\u0113ves \u012bpa\u0161\u012bbas.<\/li>\n\n\n\n<li><strong>\u00a0Vai \u0161autri\u0146u trieciena rezult\u0101tus var sal\u012bdzin\u0101t starp da\u017e\u0101diem pl\u0113ves veidiem?<\/strong><br>J\u0101apvieno tikai pl\u0113ves ar l\u012bdz\u012bgu strukt\u016bru un biezumu (\u00b1 25% robe\u017e\u0101s), jo strukt\u016bra un biezums b\u016btiski ietekm\u0113 triecieniztur\u012bbu.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Polietil\u0113na pl\u0113ves triecientest\u0113\u0161ana ar \u0161autri\u0146\u0101m saska\u0146\u0101 ar ASTM D1709 Ievads polietil\u0113na pl\u0113ves triecientest\u0113\u0161an\u0101 ar \u0161autri\u0146\u0101m Polietil\u0113na pl\u0113ves pla\u0161i izmanto iepakojum\u0101, pateicoties to iztur\u012bbai, elast\u012bbai un vieglaj\u0101m \u012bpa\u0161\u012bb\u0101m. Tom\u0113r, lai nodro\u0161in\u0101tu to veiktsp\u0113ju p\u0101rvad\u0101\u0161anas un p\u0101rkrau\u0161anas laik\u0101, ir b\u016btiski izprast to meh\u0101nisko uzved\u012bbu, jo \u012bpa\u0161i p\u0113k\u0161\u0146u triecienu gad\u012bjum\u0101. Polietil\u0113na pl\u0113ves triecientest\u0113\u0161ana ar \u0161autri\u0146\u0101m pied\u0101v\u0101 uzticamu [...]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-100","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/posts\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/comments?post=100"}],"version-history":[{"count":2,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/posts\/100\/revisions"}],"predecessor-version":[{"id":105,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/posts\/100\/revisions\/105"}],"wp:attachment":[{"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/media?parent=100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/categories?post=100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.impacttesting.net\/lv\/wp-json\/wp\/v2\/tags?post=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}