{"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\/cy\/wrap-stretch-film","title":{"rendered":"Canllaw Profi Ffilm Ymestyn Lapio yn Seiliedig ar ASTM D882"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Cyflwyniad i Brofi Ffilm Estyn Lapio<\/h2>\n\n\n\n<p>Mae ffilm ymestyn lapio yn chwarae rhan hanfodol ym maes pecynnu a logisteg. Mae ei gallu i lapio cynhyrchion yn ddiogel, gan gynnal ei hymestyniadedd, ei gryfder a'i wydnwch o dan straen, yn hanfodol. Er mwyn sicrhau ansawdd a chysondeb, mae gweithgynhyrchwyr a thimau rheoli ansawdd yn aml yn dibynnu ar <strong><a href=\"https:\/\/www.wrapfilmtest.com\/cy\/astm-d882\/\">ASTM D882<\/a><\/strong>, safon a dderbynnir yn eang ar gyfer penderfynu'r <strong>Priodweddau tynnol<\/strong> o ddeunyddiau sietio plastig tenau fel ffilmiau ymestyn. Yn y canllaw hwn, byddwn yn eich tywys drwy sut i gynnal <strong>Tynnwch y ffilm ymestyn<\/strong> yn profi'n effeithiol\u2014yn enwedig <strong>prawfion cryfder tynnol<\/strong>, <strong>profion ymestyn<\/strong>, a chyffredinol <strong>prawfion ffilm ymestyn<\/strong>\u2014i sicrhau cydymffurfiaeth, perfformiad, a diogelwch cynnyrch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Deall ASTM D882 a'i Gymhwysiad i Ffilm Ymestyn Lapio<\/h2>\n\n\n\n<p>Mae ASTM D882 yn amlinellu dull gweithredu manwl ar gyfer profi ffilmiau plastig tenau, sy'n cynnwys <strong>Tynnwch y ffilm ymestyn<\/strong> a ddefnyddir mewn pecynnu paledau, lapio logisteg, a bwndelu cynhyrchion. Mae'r safon yn pennu paramedrau profi, dimensiynau samplau, cyflymder profi, ac offer angenrheidiol ar gyfer mesur priodweddau tynnol megis cryfder tynnol, ymestyniad, a modiwl elastigedd.<\/p>\n\n\n\n<p>Yn wahanol i blastigau trymach a brofwyd o dan ASTM D638, <a href=\"https:\/\/store.astm.org\/d0882-18.html\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D882<\/a> wedi'i deilwra ar gyfer ffilmiau tenau, hyblyg, sy'n ei wneud yn ddelfrydol ar gyfer profi ffilm ymestyn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prawf Cryfder Tynafol ar gyfer Ffilm Ymestyn Lapio<\/h2>\n\n\n\n<p>Mae&#039;r <strong>prawf cryfder tynnol<\/strong> Yn pennu'r grym mwyaf y gall ffilm ymestyn lapio ei wrthsefyll cyn torri. Mae'r priodwedd hon yn dangos pa mor wrthiannol yw'r ffilm i rymoedd tynnu, sy'n hollbwysig pan gaiff ei hymestyn dros baledau neu gynhyrchion.<\/p>\n\n\n\n<p><strong>Camau allweddol i'w dilyn:<\/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=\"Gweithredu Prawf Tyndra ac Ymestyniad Ffilm Blastig ASTM D882 ar Brofwr Tyndra TST-01\" 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>Paratoi enghreifftiol:<\/strong> Torrwch stribedi o ffilm o led a thrwch unffurf (fel arfer 15\u201325.4 mm). Dylai'r sbesimen fod o leiaf 50 mm yn hwy na'r pellter rhwng y gafaelion.<\/li>\n\n\n\n<li><strong>Sefydlu'r prawf:<\/strong> Mowntiwch y sbesimen mewn peiriant profi tynnol gyda <strong>cyfradd gyson o symudiad y pen groes<\/strong>.<\/li>\n\n\n\n<li><strong>Gweithredu'r prawf:<\/strong> Ymestyn y ffilm ar gyflymder a ddiffiniwyd ymlaen llaw (yn seiliedig ar y gyfradd ymestyn gychwynnol). Cofnodwch y gromlin grym-estyniad nes bydd y ffilm yn torri.<\/li>\n\n\n\n<li><strong>Dehongli'r Canlyniad:<\/strong> Cyfrifwch y cryfder tynnol drwy rannu'r llwyth brig \u00e2'r arwynebedd traws-doriadol o'r sbesimen.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Prawf ymestyn ar gyfer ffilm ymestyn lapio<\/h2>\n\n\n\n<p>Mae&#039;r <strong>prawf ymestyn<\/strong> yn gwerthuso gallu'r ffilm i ymestyn cyn torri\u2014dangosydd pwysig o'i hyblygrwydd a'i allu i ddal llwyth.<\/p>\n\n\n\n<p><strong>Proses profi ymestyniad:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Defnyddiwch yr un sbesimen ag ar gyfer profi cryfder tynnol.<\/li>\n\n\n\n<li>Yn ystod y prawf, mesurwch faint mae'r ffilm yn ymestyn o'i hyd gwreiddiol cyn torri.<\/li>\n\n\n\n<li>Mynegir ymestyniad fel canran:<br>Ymestyniad (%) = (L<sub>terfynol<\/sub> \u2212 L<sub>gwreiddiol<\/sub>) \u00f7 L<sub>gwreiddiol<\/sub> gwaith 100<\/li>\n<\/ul>\n\n\n\n<p>Mae&#039;r <strong>Safon ASTM D882<\/strong> yn darparu canllawiau ar hyd mesuryddion priodol a chyfraddau straen i sicrhau atgynhyrchedd a chywirdeb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ystyriaethau ar gyfer Profi Ffilm Estyn<\/h2>\n\n\n\n<p>Heblaw am briodweddau tynnol ac ymestyniad, <strong>Tynnwch y ffilm ymestyn<\/strong> Gall profion gynnwys mesuriadau ar gyfer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modwl elastigedd<\/strong> \u2013 yn dynodi caledwch y ffilm.<\/li>\n\n\n\n<li><strong>Modwl secant<\/strong> \u2013 a ddefnyddir ar gyfer graddau ffilm estyniad isel.<\/li>\n\n\n\n<li><strong>Egni i dorri<\/strong> \u2013 cyfanswm yr egni a amsugnwyd hyd at fethiant.<\/li>\n\n\n\n<li><strong>Pwynt cynorthwyol<\/strong> \u2013 y pwynt lle mae dadffurfiad parhaol yn dechrau.<\/li>\n<\/ul>\n\n\n\n<p>Mae ASTM D882 yn caniat\u00e1u defnyddio ecs tensomedr i fesur straen o'r uchel-gywirdeb ac yn argymell cynnal profion yn y cyfeiriad peiriantol a'r cyfeiriad traws i ystyried anisotropedd y ffilm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Arferion Gorau wrth Brofi Ffilm Estyn<\/h2>\n\n\n\n<p>I gael canlyniadau cywir a ailadroddadwy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cynhelwch amodau profi cyson: tymheredd, lleithder, a chyfeiriad y ffilm.<\/li>\n\n\n\n<li>Defnyddio <strong>o leiaf bum sbesimen<\/strong> ar gyfer ffilmiau isotroppig a <strong>deg<\/strong> os amheuir anisotropedd.<\/li>\n\n\n\n<li>Osgoi torri'r g\u00ean oni bai bod tystiolaeth ystadegol ei fod yn adlewyrchu perfformiad dilys.<\/li>\n\n\n\n<li><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">Sicrhewch fod trwch a lled y sbesimen o fewn terfynau goddefgarwch, fel y'u diffinnir yn Adran 7 o ASTM D882.<\/font><\/font><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Dewis yr Offer Cywir<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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-ad2f72ca wp-block-group-is-layout-flex\">\n<p><font style=\"vertical-align: inherit\"><\/font><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">Cywirdeb <strong>Tynnwch y ffilm ymestyn<\/strong> Mae profi yn dibynnu'n drwm ar berfformiad y peiriant profi. I labordai sy'n dymuno canlyniadau dibynadwy a chydymffurfiol, y <strong>Offerynnau Cell <\/strong><a href=\"https:\/\/www.wrapfilmtest.com\/cy\/tensile-and-elongation-tester\/\"><strong>TST-01 Profwr Tynnol ac Ymestyn<\/strong> <\/a>Mae'n ddewis cadarn. Mae'n cefnogi cyflymderau profi rhaglenadwy, mae'n cynnwys celloedd llwyth manwl gywir, ac fe'i dyluniwyd i fodloni gofynion ASTM D882. P'un a ydych yn cynnal rheolaeth ansawdd arferol neu ymchwil deunyddiau uwch, mae'r offeryn hwn yn darparu data dibynadwy.<\/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=\"Tynnwch y ffilm ymestyn\" 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 Profwr Tynnol ac Ymestyn<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Casgliad<\/h2>\n\n\n\n<p>Profion cywir o <strong>Tynnwch y ffilm ymestyn<\/strong> yn sicrhau dibynadwyedd cynnyrch, cydymffurfiaeth reoleiddiol, a boddhad y defnyddiwr terfynol. Trwy ddilyn gweithdrefnau ASTM D882 ar gyfer <strong>prawfion cryfder tynnol<\/strong>, <strong>profion ymestyn<\/strong>, ac eraill <strong>prawfion ffilm ymestyn<\/strong>, gall gweithgynhyrchwyr ddilysu perfformiad ffilm o dan amodau byd go iawn. Gyda chefnogaeth offerynnau datblygedig fel y <strong>TST-01 o <a href=\"https:\/\/www.wrapfilmtest.com\/cy\/\">Offerynnau Cell<\/a><\/strong>, mae'r profion hyn yn dod nid yn unig yn ddibynadwy ond hefyd yn effeithlon ac yn raddadwy ar gyfer anghenion cynhyrchu.<\/p>","protected":false},"excerpt":{"rendered":"<p>Cyflwyniad i Brofi Ffilm Ymestyn Lapio Mae ffilm ymestyn lapio yn chwarae rhan hanfodol mewn pecynnu a logisteg. Mae ei gallu i lapio cynhyrchion yn ddiogel, gan gynnal ymestynedd, cryfder a gwydnwch o dan straen, yn hanfodol. Er mwyn sicrhau ansawdd a chysondeb, mae gweithgynhyrchwyr a thimau rheoli ansawdd yn aml yn dibynnu ar ASTM D882, safon a dderbynnir yn eang ar gyfer pennu'r [\u2026]","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. Learn about tensile strength test, elongation test, and stretch film test procedures.\" \/>\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.wrapfilmtest.com\/cy\/wrap-stretch-film\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Test Wrap Stretch Film per ASTM D882 Guidelines - Wrap Film Test\" \/>\n<meta property=\"og:description\" content=\"Discover how to perform wrap stretch film testing. 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