{"id":9864,"date":"2026-02-24T15:11:46","date_gmt":"2026-02-24T07:11:46","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/astm-d624\/"},"modified":"2026-03-12T12:01:07","modified_gmt":"2026-03-12T04:01:07","slug":"astm-d624","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/sl\/standard\/astm-d624\/","title":{"rendered":"ASTM D624"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Mo\u010d trganja gume in njen pomen<\/h2>\n\n\n\n<p>The <strong data-start=\"1487\" data-end=\"1511\">trdnost gume pri trganju<\/strong> ozna\u010duje, kako u\u010dinkovito se material upira nastanku ali \u0161irjenju raztrganine. Medtem ko natezna trdnost meri splo\u0161no sposobnost raztezanja, se raztrganinska trdnost osredoto\u010da na <em data-start=\"1695\" data-end=\"1721\">na\u010dini odpovedi v resni\u010dnem svetu<\/em>. Ostri robovi, cikli\u010dne obremenitve, abrazija ali vtisnjeni delci pogosto povzro\u010dijo lokalizirane napetosti, zaradi katerih je raztrganje najpogostej\u0161i mehanizem po\u0161kodb pri uporabi.<\/p>\n\n\n\n<p>Na u\u010dinkovitost trganja vpliva ve\u010d dejavnikov, med drugim porazdelitev napetosti, hitrost deformacije, geometrija vzorca in prisotnost zarez. ASTM D624 zagotavlja nadzorovano in ponovljivo metodo za koli\u010dinsko opredelitev teh vplivov, ki in\u017eenirjem in strokovnjakom za nadzor kakovosti omogo\u010da zanesljive primerjave.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Standardne zahteve za preskus trdnosti na pretrganje<\/h2>\n\n\n\n<p>The <strong data-start=\"2238\" data-end=\"2269\">standardni preskus trdnosti pri trganju<\/strong> dolo\u010da postopke za pripravo vzorcev, njihovo kondicioniranje in postopno pove\u010devanje obremenitve do popolne poru\u0161itve. Napenjalni tester vle\u010de vzorec z dolo\u010deno hitrostjo kri\u017ene glave. Zabele\u017eena sila na enoto debeline predstavlja trdnost pri trganju.<\/p>\n\n\n\n<p>V skladu s standardom:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vzorci tipa A, B in C uporabljajo <strong data-start=\"2599\" data-end=\"2618\">500 \u00b1 50 mm\/min<\/strong> hitrost lo\u010devanja.<\/li>\n\n\n\n<li>Vzorci tipa T in CP uporabljajo <strong data-start=\"2667\" data-end=\"2684\">50 \u00b1 5 mm\/min<\/strong> hitrost.<\/li>\n\n\n\n<li>Pravilna poravnava vzorca zagotavlja enakomerno obremenitev in prepre\u010duje zdrs oprijema.<\/li>\n\n\n\n<li>Rezultatov preskusov razli\u010dnih geometrij ni mogo\u010de zamenjati, saj vsaka zasnova ozna\u010duje druga\u010den mehanizem trganja.<\/li>\n<\/ul>\n\n\n\n<p>Te razlike uporabnikom omogo\u010dajo, da testiranje prilagodijo posebnim pogojem izdelka.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D624 tip A, tip B, tip C, tip T in tip CP<\/h2>\n\n\n\n<p>Standard ASTM D624 vklju\u010duje ve\u010d vrst vzorcev, od katerih vsak zajame druga\u010dno obna\u0161anje pri okvari. Te razli\u010dice so tesno povezane z razli\u010dnimi aplikacijami elastomerov.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D624 tip A - polmesec za manj\u0161e vzorce<\/h3>\n\n\n\n<p><strong data-start=\"3703\" data-end=\"3723\">ASTM D624, tip A<\/strong> je podoben tipu B, vendar nima podalj\u0161anih koncev zavihkov. Laboratoriji uporabljajo tip A, kadar delajo z manj\u0161imi oblikovanimi sestavnimi deli ali omejenimi koli\u010dinami materiala. Prav tako meri \u0161irjenje raztrganine, vendar lahko zaradi kraj\u0161e dol\u017eine merilne naprave ka\u017ee nekoliko druga\u010dno porazdelitev napetosti.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D624 tip B - polmesec z zavihki<\/h3>\n\n\n\n<p><strong data-start=\"3277\" data-end=\"3297\">ASTM D624 tip B<\/strong> je ena najpogosteje uporabljenih geometrij. Ima polmesec s podalj\u0161animi jezi\u010dki, ki izbolj\u0161ujejo stabilnost prijema. Ta vrsta meri <strong data-start=\"3455\" data-end=\"3484\">mo\u010d \u0161irjenja raztrganine<\/strong>zato je idealen za splo\u0161ni nadzor kakovosti gume. Proizvajalci se pogosto odlo\u010dijo za tip B, kadar je originalna plo\u010devina dovolj velika za pripravo zahtevanih dimenzij.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D624, tip C - 90-stopinjski vzorec z vrhom<\/h3>\n\n\n\n<p><strong data-start=\"4049\" data-end=\"4069\">ASTM D624, tip C<\/strong> ima izrazit 90-stopinjski kot brez zareze. Koncentracija napetosti na vrhu pomaga oceniti <strong data-start=\"4170\" data-end=\"4198\">za\u010detna trdnost raztrganine<\/strong>, kar je klju\u010dnega pomena pri ocenjevanju okvare zaradi ostrih vogalov ali vgrajenih napak. \u010ce se raztrganina ne za\u010dne na vrhu, so lahko rezultati podobni natezni trdnosti, zato je bistvena pravilna priprava vzorca.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D624, tip T - vzorec za trganje hla\u010d<\/h3>\n\n\n\n<p><strong data-start=\"4457\" data-end=\"4477\">ASTM D624, tip T<\/strong> ima geometrijo razcepljenih nog, ki spominja na obliko hla\u010d. Meri \u0161irjenje raztrganine vzdol\u017e dol\u017eine vzorca. Tip T se pogosto uporablja za pro\u017ene elastomerne filme, tanke plo\u0161\u010de in mehke zmesi TPE.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D624, tip CP - raztrganje po omejeni poti<\/h3>\n\n\n\n<p><strong data-start=\"4735\" data-end=\"4756\">ASTM D624 Tip CP<\/strong> je modifikacija tipa T. Uporablja <strong data-start=\"4796\" data-end=\"4821\">omejena pot trganja<\/strong> in debelej\u0161imi nogami, ki zagotavljajo, da raztrganina ostane poravnana, zato je \u0161e posebej primerna za materiale, ki so nagnjeni k odstopanju ali pretiranemu raztezanju. To omogo\u010da stabilnej\u0161e in ponovljive rezultate razmno\u017eevanja.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Izbira pravega preizku\u0161evalca trdnosti pri trganju<\/h2>\n\n\n\n<p>Izbira ustreznega <strong data-start=\"5104\" data-end=\"5131\">preizku\u0161evalec trdnosti pri trganju<\/strong> zagotavlja natan\u010dne in dosledne rezultate. Tester mora vzdr\u017eevati stabilne hitrosti kri\u017ene glave, zagotavljati ob\u010dutljivo merjenje sile in podpirati razli\u010dne konfiguracije prijemala.<\/p>\n\n\n\n<p>The <strong data-start=\"5306\" data-end=\"5348\">Cell Instruments TST-01 Napenjalni tester<\/strong> je odli\u010dna izbira za testiranje po standardu ASTM D624 zaradi svoje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Natan\u010dna obremenitvena celica in visoka stopnja vzor\u010denja<\/li>\n\n\n\n<li>Stabilno gibanje kri\u017ene glave za teste trganja pri visoki in nizki hitrosti<\/li>\n\n\n\n<li>Zdru\u017eljivost s svetilkami tipa A, B, C, T in CP<\/li>\n\n\n\n<li>Prilagodljivost za raziskave in razvoj ter rutinski pregled kakovosti<\/li>\n<\/ul>\n\n\n\n<p>Zmo\u017enost preklapljanja med razli\u010dnimi na\u010dini trganja omogo\u010da laboratorijem, da z eno napravo opravijo celoten obseg testiranja po standardu ASTM D624.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kontaktirajte nas Pridobite re\u0161itev za testiranje ASTM D624 <\/h2>\n\n\n\n<p><a href=\"https:\/\/www.astm.org\/d0624-00r20.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D624<\/a> zagotavlja celovit okvir za ocenjevanje obna\u0161anja pri trganju izdelkov iz gume in TPE. Ve\u010d vrst vzorcev uporabnikom omogo\u010da, da zajamejo nastanek in \u0161irjenje raztrganine pri razli\u010dnih aplikacijah. Z uporabo zanesljivih instrumentov, kot je npr. <strong data-start=\"6591\" data-end=\"6616\"><a href=\"https:\/\/www.packqc.com\/sl\/products\/sale-packaging-tensile-strength-tester-film\/\" target=\"_blank\" rel=\"noreferrer noopener\">TST-01 Tester natezne trdnosti<\/a><\/strong>, lahko laboratoriji dose\u017eejo dosledne, natan\u010dne in ponovljive rezultate, ki izbolj\u0161ajo kakovost izdelkov in okrepijo odlo\u010ditve o in\u017eeniringu materialov. Za proizvajalce in osebje za kakovost, ki \u017eelijo zanesljivo vrednotenje raztrganin, ostaja standard ASTM D624 nepogre\u0161ljiv.<\/p>\n\n\n\n<p><\/p>","protected":false},"featured_media":8078,"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":"","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":""}}},"class_list":["post-9864","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/standard\/9864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/media\/8078"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/media?parent=9864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}