{"id":9310,"date":"2026-02-02T11:23:36","date_gmt":"2026-02-02T03:23:36","guid":{"rendered":"https:\/\/www.packqc.com\/applications\/tearing-strength-of-fabrics-by-falling-pendulum\/"},"modified":"2026-03-16T15:38:40","modified_gmt":"2026-03-16T07:38:40","slug":"tearing-strength-of-fabrics-by-falling-pendulum","status":"publish","type":"applications","link":"https:\/\/www.packqc.com\/fi\/applications\/tearing-strength-of-fabrics-by-falling-pendulum\/","title":{"rendered":"Kankaiden rep\u00e4isylujuus putoavan heilurin avulla"},"content":{"rendered":"<p>The <strong data-start=\"510\" data-end=\"561\">Kankaiden rep\u00e4isylujuus putoavan heilurin avulla<\/strong> on olennainen testi, jolla m\u00e4\u00e4ritet\u00e4\u00e4n, kuinka hyvin kankaat kest\u00e4v\u00e4t repe\u00e4mist\u00e4 rasituksessa. Menetelm\u00e4 on erityisen t\u00e4rke\u00e4 materiaaleille, joita k\u00e4ytet\u00e4\u00e4n tekstiileiss\u00e4, joiden on toimittava hyvin mekaanisen rasituksen alaisena, kuten turvavarusteissa, verhoiluissa ja teollisuuskankaissa. <strong data-start=\"831\" data-end=\"845\">ASTM D1424<\/strong>, jossa kuvataan menettely kankaan rep\u00e4isylujuuden mittaamiseksi k\u00e4ytt\u00e4en apuna <strong data-start=\"920\" data-end=\"965\">Elmendorf-tyyppinen heilurilaite<\/strong>, on alalla yleisimmin k\u00e4ytetty standardi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1424: Standardi kankaiden rep\u00e4isykest\u00e4vyyden testaamiselle.<\/h2>\n\n\n\n<p><strong data-start=\"1078\" data-end=\"1092\">ASTM D1424<\/strong> m\u00e4\u00e4ritell\u00e4\u00e4n menetelm\u00e4, jolla m\u00e4\u00e4ritet\u00e4\u00e4n <strong data-start=\"1132\" data-end=\"1151\">repeytymiskest\u00e4vyys<\/strong> kankaasta k\u00e4ytt\u00e4en <strong data-start=\"1170\" data-end=\"1200\">heilurilaite<\/strong>. Menetelm\u00e4ss\u00e4 mitataan voima, joka tarvitaan repe\u00e4m\u00e4n etenemiseen kangasn\u00e4ytteess\u00e4 sen j\u00e4lkeen, kun alkuper\u00e4inen viilto on tehty. . <strong data-start=\"1326\" data-end=\"1351\">Elmendorfin repe\u00e4m\u00e4menetelm\u00e4<\/strong> arvioidaan kankaan repeytymiskest\u00e4vyytt\u00e4, mik\u00e4 on ratkaisevan t\u00e4rke\u00e4\u00e4 m\u00e4\u00e4ritett\u00e4ess\u00e4 eri sovelluksissa k\u00e4ytett\u00e4vien materiaalien kest\u00e4vyytt\u00e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mik\u00e4 on Elmendorfin repe\u00e4m\u00e4?<\/h2>\n\n\n\n<p>The <strong data-start=\"1540\" data-end=\"1558\">Elmendorfin repe\u00e4m\u00e4<\/strong> testi mittaa <strong data-start=\"1577\" data-end=\"1594\">rep\u00e4isylujuus<\/strong> kankaan leikkaaminen kohdistamalla voimaa, jotta kankaaseen leikattu viilto etenisi n\u00e4ytteess\u00e4. Repeytymisen jatkamiseen tarvittava voima kirjataan, jolloin saadaan arvokasta tietoa kankaan repeytymiskest\u00e4vyydest\u00e4. Menetelm\u00e4 on erityisen hy\u00f6dyllinen kudottujen kankaiden, kerrostettujen huopien, ilmatyynykankaiden ja muiden yleisesti sek\u00e4 kaupallisissa ett\u00e4 teollisissa ymp\u00e4rist\u00f6iss\u00e4 k\u00e4ytett\u00e4vien tekstiilityyppien testauksessa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kankaan rep\u00e4isylujuuden merkitys<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kankaiden repeytymiskest\u00e4vyyden testaus on t\u00e4rke\u00e4\u00e4 useista syist\u00e4:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2083\" data-end=\"2097\">Kest\u00e4vyys<\/strong>: Turvallisuuskriittisiss\u00e4 sovelluksissa k\u00e4ytett\u00e4vien kankaiden on kestett\u00e4v\u00e4 mekaanista rasitusta repe\u00e4m\u00e4tt\u00e4. <strong data-start=\"2194\" data-end=\"2208\">ASTM D1424<\/strong> varmistetaan, ett\u00e4 materiaalit t\u00e4ytt\u00e4v\u00e4t tarvittavat kest\u00e4vyysvaatimukset.<\/li>\n\n\n\n<li><strong data-start=\"2275\" data-end=\"2294\">Laadunvalvonta<\/strong>: Valmistajat k\u00e4ytt\u00e4v\u00e4t t\u00e4t\u00e4 testi\u00e4 todentaakseen, ett\u00e4 heid\u00e4n kankaansa t\u00e4ytt\u00e4v\u00e4t alan standardit, ja varmistaakseen tuotteen tasaisen laadun kaikissa tuotantoeriss\u00e4.<\/li>\n\n\n\n<li><strong data-start=\"2443\" data-end=\"2466\">Tuotteen suorituskyky<\/strong>: Kankaat, joita k\u00e4ytet\u00e4\u00e4n esimerkiksi turvatyynyiss\u00e4, turvapuvuissa ja teollisuuspeitteiss\u00e4, <strong data-start=\"2553\" data-end=\"2570\">rep\u00e4isylujuus<\/strong> on ratkaisevan t\u00e4rke\u00e4\u00e4 sen varmistamiseksi, ett\u00e4 kangas toimii todellisissa olosuhteissa.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Testausmenettely: Putoava heiluri -laite<\/h3>\n\n\n\n<p>Menettely <strong data-start=\"2723\" data-end=\"2777\">kankaan rep\u00e4isylujuuden mittaaminen putoavan heilurin avulla<\/strong> sis\u00e4lt\u00e4\u00e4 useita keskeisi\u00e4 vaiheita:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"2810\" data-end=\"2834\">N\u00e4ytteen valmistelu<\/strong>: Suorakulmainen kangasn\u00e4yte leikataan ja sen keskelle tehd\u00e4\u00e4n viilto. T\u00e4m\u00e4n j\u00e4lkeen n\u00e4yte asetetaan kahden puristimen v\u00e4liin.<\/li>\n\n\n\n<li><strong data-start=\"2962\" data-end=\"2982\">Kyynelten levi\u00e4minen<\/strong>: <strong data-start=\"2988\" data-end=\"3018\">heilurilaite<\/strong> kohdistetaan n\u00e4ytteeseen hallittu voima, joka saa repe\u00e4m\u00e4n etenem\u00e4\u00e4n. Repe\u00e4m\u00e4n jatkumiseen tarvittava voima mitataan ja kirjataan.<\/li>\n\n\n\n<li><strong data-start=\"3163\" data-end=\"3182\">Tiedonkeruu<\/strong>: Testi mittaa <strong data-start=\"3206\" data-end=\"3246\">repe\u00e4m\u00e4n etenemiseen tarvittava voima<\/strong>. Tulosten perusteella lasketaan kankaan <strong data-start=\"3295\" data-end=\"3312\">rep\u00e4isylujuus<\/strong> ja arvioida sen repeytymiskest\u00e4vyys rasituksessa.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Putoavan heilurin testin sovellukset<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM D1424 -standardia k\u00e4ytet\u00e4\u00e4n yleisesti tekstiiliteollisuudessa ja muilla aloilla, joilla kankaan kest\u00e4vyys on t\u00e4rke\u00e4\u00e4:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3527\" data-end=\"3552\">Tekstiilien valmistus<\/strong>: Kudottujen kankaiden, huopien ja ilmatyynykankaiden laadunvalvontaan.<\/li>\n\n\n\n<li><strong data-start=\"3624\" data-end=\"3644\">Turvalaitteet<\/strong>: Suojavaatteissa, turvapuvuissa ja muissa korkean suorituskyvyn sovelluksissa k\u00e4ytett\u00e4viss\u00e4 materiaaleissa.<\/li>\n\n\n\n<li><strong data-start=\"3749\" data-end=\"3771\">Teolliset kankaat<\/strong>: Teollisuudessa k\u00e4ytett\u00e4viin kankaisiin, kuten pressuihin, telttoihin ja muihin raskaisiin tuotteisiin.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00e4ytteenotto ja testin\u00e4ytteet<\/h3>\n\n\n\n<p>Tarkkojen tulosten saamiseksi <strong data-start=\"3929\" data-end=\"3943\">ASTM D1424<\/strong> testi edellytt\u00e4\u00e4 huolellisesti valittuja n\u00e4ytteit\u00e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3988\" data-end=\"4002\">Er\u00e4 N\u00e4yte<\/strong>: Tuotantoer\u00e4st\u00e4 valitaan tietty m\u00e4\u00e4r\u00e4 kangasrullia tai -kappaleita.<\/li>\n\n\n\n<li><strong data-start=\"4091\" data-end=\"4112\">Laboratorion\u00e4yte<\/strong>: Kankaasta leikataan kangasn\u00e4yte, ja n\u00e4ytteet valmistetaan testausta varten tarkkojen mittojen mukaan.<\/li>\n<\/ul>\n\n\n\n<p><strong data-start=\"4216\" data-end=\"4224\">Huomautus<\/strong>: <strong data-start=\"4230\" data-end=\"4254\">kankaan rep\u00e4isylujuus<\/strong> on suoraan verrannollinen kangasn\u00e4ytteen pituuteen, joten n\u00e4ytteen tarkka valmistelu on v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4 luotettavien tulosten saamiseksi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cell Instruments: tienn\u00e4ytt\u00e4j\u00e4 repe\u00e4mislujuuden testauksessa<\/h2>\n\n\n\n<p>klo <strong data-start=\"4454\" data-end=\"4474\">Soluinstrumentit<\/strong>, tarjoamme korkealaatuisia <strong data-start=\"4500\" data-end=\"4528\"><a href=\"https:\/\/www.packqc.com\/fi\/products\/sld-01-elmendorf-tear-strength-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">elemendorfin testauskoneet<\/a><\/strong> jotka noudattavat <strong data-start=\"4550\" data-end=\"4564\"><a href=\"https:\/\/store.astm.org\/d1424-25.html\" rel=\"nofollow noopener\" target=\"_blank\">ASTM D1424<\/a><\/strong> standardi. Meid\u00e4n <strong data-start=\"4579\" data-end=\"4609\">heilurilaite<\/strong> varmistaa tarkan mittauksen <strong data-start=\"4641\" data-end=\"4670\">Elmendorfin rep\u00e4isykest\u00e4vyys<\/strong>, jolloin valmistajat voivat testata kankaan kest\u00e4vyytt\u00e4 ja yll\u00e4pit\u00e4\u00e4 tuotteiden laadunvalvontaa. Kehittyneiden laitteidemme ansiosta voit luottaa testitulosten luotettavuuteen.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Tearing Strength of Fabrics by Falling-Pendulum is an essential test for determining how well fabrics can resist tearing under stress. This method is particularly important for materials used in textiles that need to perform well under mechanical stress, such as safety equipment, upholstery, and industrial fabrics. ASTM D1424, which outlines the procedure for measuring [&hellip;]<\/p>","protected":false},"featured_media":8696,"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-9310","applications","type-applications","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/applications\/9310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/applications"}],"about":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/types\/applications"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/media\/8696"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/media?parent=9310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}