{"id":10305,"date":"2026-04-22T16:23:36","date_gmt":"2026-04-22T08:23:36","guid":{"rendered":"https:\/\/www.packqc.com\/?post_type=standard&#038;p=10305"},"modified":"2026-04-22T16:23:37","modified_gmt":"2026-04-22T08:23:37","slug":"astm-d2732","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/tr\/standard\/astm-d2732\/","title":{"rendered":"ASTM D2732"},"content":{"rendered":"<h2 class=\"wp-block-heading\">ASTM D2732 Nedir ve Neden \u00d6nemlidir?<\/h2>\n\n\n\n<p><strong>ASTM D2732<\/strong> de\u011ferlendirmek i\u00e7in standartla\u015ft\u0131r\u0131lm\u0131\u015f bir yakla\u015f\u0131m tan\u0131mlar. <strong>s\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f do\u011frusal termal b\u00fcz\u00fclme<\/strong> plastik film ve tabakalar\u0131n (\u22640,76 mm kal\u0131nl\u0131k). Pratik anlamda bu y\u00f6ntem, bir filmin y\u00fcksek s\u0131cakl\u0131klara maruz kald\u0131\u011f\u0131nda ne kadar b\u00fcz\u00fcld\u00fc\u011f\u00fcn\u00fc \u00f6l\u00e7er <strong>d\u0131\u015f k\u0131s\u0131tlamalar olmadan<\/strong>.<\/p>\n\n\n\n<p>Film \u00fcretimi s\u0131ras\u0131nda - ekstr\u00fczyon veya y\u00f6nlendirme gibi -<strong>malzeme yap\u0131s\u0131na i\u00e7 gerilimler eklenir<\/strong>. Is\u0131 uyguland\u0131\u011f\u0131nda, bu gerilmeler gev\u015feyerek boyutsal b\u00fcz\u00fclmeye yol a\u00e7ar. Bu davran\u0131\u015f\u0131 anlamak a\u015fa\u011f\u0131dakiler i\u00e7in kritik \u00f6neme sahiptir:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ambalaj b\u00fct\u00fcnl\u00fc\u011f\u00fc<\/strong> (\u00f6rn. shrink ambalajlar, etiketler)<\/li>\n\n\n\n<li><strong>T\u0131bbi ambalajlarda s\u0131zd\u0131rmazl\u0131k performans\u0131<\/strong><\/li>\n\n\n\n<li><strong>End\u00fcstriyel filmlerde boyutsal kararl\u0131l\u0131k<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>ASTM D2732 tekrarlanabilir bir \u00e7er\u00e7eve sa\u011flar<\/strong> farkl\u0131 s\u0131cakl\u0131klarda b\u00fcz\u00fclmeyi \u00f6l\u00e7erek m\u00fchendislerin ve kalite kontrol ekiplerinin performans\u0131 i\u015fleme ko\u015fullar\u0131yla ili\u015fkilendirmesini sa\u011flar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is\u0131l B\u00fcz\u00fclme Test Y\u00f6ntemi<\/h2>\n\n\n\n<p>The <strong>\u0131s\u0131l b\u00fcz\u00fclme test y\u00f6ntemi<\/strong> ASTM D2732'de tan\u0131mlanan s\u0131v\u0131 banyo ortam\u0131nda kontroll\u00fc termal maruziyete odaklanmaktad\u0131r.<\/p>\n\n\n\n<p>Temel teknik ilkeler \u015funlard\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f durum:<\/strong> Numune, mekanik m\u00fcdahale olmadan serbest\u00e7e b\u00fcz\u00fclmelidir.<\/li>\n\n\n\n<li><strong>Termal denge:<\/strong> Maksimum b\u00fcz\u00fclme elde etmek i\u00e7in numune sabit bir s\u0131cakl\u0131\u011fa ula\u015fmal\u0131d\u0131r.<\/li>\n\n\n\n<li><strong>\u00c7ift y\u00f6nl\u00fc \u00f6l\u00e7\u00fcm:<\/strong> B\u00fcz\u00fclme her iki durumda da de\u011ferlendirilir <strong>makine y\u00f6n\u00fc (MD)<\/strong> Ve <strong>enine y\u00f6n (TD)<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Kritik i\u00e7g\u00f6r\u00fc:<\/strong> B\u00fcz\u00fclme sabit de\u011fildir; s\u0131cakl\u0131kla \u00f6nemli \u00f6l\u00e7\u00fcde de\u011fi\u015fir. Bu nedenle, birden fazla s\u0131cakl\u0131k noktas\u0131nda test yapmak <strong>b\u00fcz\u00fclme profili<\/strong>, sadece tek bir de\u011fer de\u011fil.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00fcz\u00fclme Test Prosed\u00fcr\u00fc<\/h2>\n\n\n\n<p>Standartla\u015ft\u0131r\u0131lm\u0131\u015f <strong>b\u00fcz\u00fclme test prosed\u00fcr\u00fc<\/strong> do\u011fruluk ve tekrarlanabilirlik sa\u011flar:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Numune Haz\u0131rlama<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kesmek <strong>100 mm \u00d7 100 mm numuneler<\/strong><\/li>\n\n\n\n<li>En az\u0131ndan \u015funlar\u0131 kullan\u0131n <strong>test s\u0131cakl\u0131\u011f\u0131 ba\u015f\u0131na iki numune<\/strong><\/li>\n\n\n\n<li>Gerekirse makine y\u00f6n\u00fcn\u00fc i\u015faretleyin<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Test Y\u00fcr\u00fctme<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u00d6rne\u011fi bir kaba yerle\u015ftirin <strong>\u00fccretsiz shrink tutucu<\/strong> k\u0131s\u0131tlamalardan ka\u00e7\u0131nmak i\u00e7in<\/li>\n\n\n\n<li>Dald\u0131rmadan \u00f6nce banyo s\u0131cakl\u0131\u011f\u0131n\u0131 kaydedin<\/li>\n\n\n\n<li>Numuneyi \u015fu s\u00fcreyle dald\u0131r\u0131n <strong>~10 saniye<\/strong> (veya dengeye gelene kadar)<\/li>\n\n\n\n<li>Hemen bir so\u011futma ortam\u0131na aktar\u0131n<\/li>\n\n\n\n<li>Stabilizasyondan sonra nihai boyutlar\u0131 \u00f6l\u00e7\u00fcn<\/li>\n<\/ol>\n\n\n\n<p><strong>\u00d6nemli \u00f6nlemler:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dald\u0131rmadan \u00f6nce numuneyi \u00f6nceden \u0131s\u0131tmaktan ka\u00e7\u0131n\u0131n<\/li>\n\n\n\n<li>Ta\u015f\u0131ma s\u0131ras\u0131nda numunenin gerilmesini \u00f6nleyin<\/li>\n\n\n\n<li>D\u00fczg\u00fcn banyo s\u0131cakl\u0131\u011f\u0131 da\u011f\u0131l\u0131m\u0131 sa\u011flay\u0131n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">B\u00fcz\u00fclme Hesaplamas\u0131<\/h3>\n\n\n\n<p><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>S<\/mi><mi>h<\/mi><mi>r<\/mi><mi>i<\/mi><mi>n<\/mi><mi>k<\/mi><mi>a<\/mi><mi>g<\/mi><mi>e<\/mi><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"normal\">%<\/mi><mo stretchy=\"false\">)<\/mo><mo>=<\/mo><mfrac><mrow><msub><mi>L<\/mi><mn>0<\/mn><\/msub><mo>\u2212<\/mo><msub><mi>L<\/mi><mi>f<\/mi><\/msub><\/mrow><msub><mi>L<\/mi><mn>0<\/mn><\/msub><\/mfrac><mo>\u00d7<\/mo><mn>100<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">K\u00fc\u00e7\u00fclme(\\%) = \\frac{L_0 - L_f}{L_0} \\times 100<\/annotation><\/semantics><\/math>\u00c7ekme(%)=L0L0-Lf\u00d7100<\/p>\n\n\n\n<p>Nerede?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><msub><mi>L<\/mi><mn>0<\/mn><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">L_0<\/annotation><\/semantics><\/math>L0: Ba\u015flang\u0131\u00e7 uzunlu\u011fu (tipik olarak 100 mm)<\/li>\n\n\n\n<li><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><msub><mi>L<\/mi><mi>f<\/mi><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">L_f<\/annotation><\/semantics><\/math>Lf: B\u00fcz\u00fclme sonras\u0131 nihai uzunluk<\/li>\n<\/ul>\n\n\n\n<p>Bu form\u00fcl a\u015fa\u011f\u0131dakileri sa\u011flar <strong>do\u011frusal b\u00fcz\u00fclme y\u00fczdesi<\/strong>, malzeme kar\u015f\u0131la\u015ft\u0131rmas\u0131 ve kalite kontrol\u00fc i\u00e7in \u00f6nemli bir parametredir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Filmsiz Shrink Test Cihaz\u0131: Test Do\u011frulu\u011funun Art\u0131r\u0131lmas\u0131<\/h2>\n\n\n\n<p>A <strong><a href=\"https:\/\/www.packqc.com\/tr\/products\/fst-01-film-shrinkage-tester\/\" target=\"_blank\" data-type=\"products\" data-id=\"9536\" rel=\"noreferrer noopener\">filmsiz shrink test cihaz\u0131<\/a><\/strong> ASTM D2732'nin y\u00fcksek hassasiyetle uygulanmas\u0131 i\u00e7in gereklidir. Manuel kurulumlarla kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, \u00f6zel cihazlar \u015funlar\u0131 sunar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kararl\u0131 s\u0131cakl\u0131k kontrol\u00fc (\u00b10,3\u00b0C)<\/strong><\/li>\n\n\n\n<li><strong>S\u0131v\u0131 ortam \u00fczerinden e\u015fit \u0131s\u0131tma<\/strong><\/li>\n\n\n\n<li><strong>Kontroll\u00fc dald\u0131rma zamanlamas\u0131<\/strong><\/li>\n\n\n\n<li><strong>Tutarl\u0131 s\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f ko\u015fullar<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u00d6rne\u011fin <strong>H\u00fccre Enstr\u00fcmanlar\u0131 <a href=\"https:\/\/www.packqc.com\/tr\/products\/fst-01-film-shrinkage-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">FST-01 Filmsiz Shrink Test Cihaz\u0131<\/a><\/strong> laboratuvarlar\u0131n \u015funlar\u0131 yapmas\u0131n\u0131 sa\u011flar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ger\u00e7ek d\u00fcnya shrink ko\u015fullar\u0131n\u0131 sim\u00fcle edin<\/li>\n\n\n\n<li>Tekrarlanabilir b\u00fcz\u00fclme verileri olu\u015fturun<\/li>\n\n\n\n<li>Operat\u00f6r kaynakl\u0131 de\u011fi\u015fkenli\u011fi azalt\u0131n<\/li>\n<\/ul>\n\n\n\n<p>Onun <strong>PID kontroll\u00fc \u0131s\u0131tma sistemi ve standartla\u015ft\u0131r\u0131lm\u0131\u015f armat\u00fcrler<\/strong> operasyonel verimlili\u011fi art\u0131r\u0131rken ASTM D2732 ile uyumlulu\u011fu sa\u011flar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D2732 Sonu\u00e7lar\u0131n\u0131 Etkileyen Temel Fakt\u00f6rler<\/h2>\n\n\n\n<p>Sonu\u00e7lar\u0131 do\u011fru yorumlamak i\u00e7in a\u015fa\u011f\u0131daki de\u011fi\u015fkenleri g\u00f6z \u00f6n\u00fcnde bulundurun:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Malzeme Bile\u015fimi<\/h3>\n\n\n\n<p>Farkl\u0131 polimerler (PET, PVC, PE) molek\u00fcler oryantasyon ve kristallik nedeniyle farkl\u0131 b\u00fcz\u00fclme davran\u0131\u015flar\u0131 sergiler.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u0130\u015fleme Ge\u00e7mi\u015fi<\/h3>\n\n\n\n<p>Film germe oranlar\u0131, so\u011futma h\u0131zlar\u0131 ve tavlama do\u011frudan etkiler <strong>art\u0131k stres seviyeleri<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u0924\u093e\u092a S\u0131cakl\u0131k Se\u00e7imi<\/h3>\n\n\n\n<p>\u00c7oklu s\u0131cakl\u0131klarda yap\u0131lan testler ortaya koymaktad\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u00fcz\u00fclme ba\u015flang\u0131c\u0131<\/li>\n\n\n\n<li>Maksimum b\u00fcz\u00fclme noktas\u0131<\/li>\n\n\n\n<li>Termal ge\u00e7i\u015f davran\u0131\u015f\u0131<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Kal\u0131nl\u0131k ve Yap\u0131<\/h3>\n\n\n\n<p>Daha kal\u0131n veya \u00e7ok katmanl\u0131 filmlerin dengeye ula\u015fmas\u0131 i\u00e7in daha uzun dald\u0131rma s\u00fcreleri gerekebilir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SSS<\/h2>\n\n\n\n<p>1. ASTM D2732 testi i\u00e7in hangi malzemeler uygundur?<br>PET, PE, PVC ve \u00e7ok katmanl\u0131 laminatlar dahil olmak \u00fczere kal\u0131nl\u0131\u011f\u0131 \u22640,76 mm olan plastik filmler ve levhalar.<\/p>\n\n\n\n<p>2. S\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f b\u00fcz\u00fclme neden \u00f6nemlidir?<br>D\u0131\u015f kuvvetler olmaks\u0131z\u0131n i\u00e7sel malzeme davran\u0131\u015f\u0131n\u0131 yans\u0131t\u0131r ve a\u015fa\u011f\u0131dakileri sa\u011flar <strong>ger\u00e7ek b\u00fcz\u00fclme \u00f6zellikleri<\/strong>.<\/p>\n\n\n\n<p>3. Numuneler ne kadar s\u00fcreyle dald\u0131r\u0131lmal\u0131d\u0131r?<br>Tipik olarak 10 saniye, ancak daha kal\u0131n veya yeni malzemeler tam b\u00fcz\u00fclme sa\u011flamak i\u00e7in do\u011frulama gerektirebilir.<\/p>\n\n\n\n<p>4. MD ve TD b\u00fcz\u00fclme aras\u0131ndaki fark nedir?<br>MD (makine y\u00f6n\u00fc) film \u00fcretim y\u00f6n\u00fcyle ayn\u0131 hizadayken TD diktir - her ikisi de performans\u0131 farkl\u0131 \u015fekilde etkiler.<\/p>\n\n\n\n<p>5. Can <a href=\"https:\/\/store.astm.org\/d2732-14r25.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D2732<\/a> solvent bazl\u0131 b\u00fcz\u00fclme i\u00e7in kullan\u0131labilir mi?<br>Hay\u0131r, solvent kayb\u0131ndan kaynaklanan b\u00fcz\u00fclmeyi hesaba katmaz.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D2732, kontroll\u00fc \u0131s\u0131tmadan sonra boyutsal de\u011fi\u015fiklikleri \u00f6l\u00e7erek plastik filmlerin s\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f do\u011frusal termal b\u00fcz\u00fclmesini de\u011ferlendirir.<\/p>","protected":false},"featured_media":10306,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"standard-category":[],"class_list":["post-10305","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/standard\/10305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/media\/10306"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/media?parent=10305"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/tr\/wp-json\/wp\/v2\/standard-category?post=10305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}