{"id":453,"date":"2024-12-23T06:47:34","date_gmt":"2024-12-23T06:47:34","guid":{"rendered":"https:\/\/www.wrapfilmtest.com\/?page_id=453"},"modified":"2025-01-13T09:10:44","modified_gmt":"2025-01-13T09:10:44","slug":"tensile-and-elongation-test","status":"publish","type":"page","link":"https:\/\/www.wrapfilmtest.com\/fi\/tensile-and-elongation-test","title":{"rendered":"Veto- ja venym\u00e4testi"},"content":{"rendered":"<div class=\"slider-wrapper relative\" id=\"slider-1604956554\" >\n    <div class=\"slider slider-nav-circle slider-nav-large slider-nav-light slider-style-normal\"\n        data-flickity-options='{            \"cellAlign\": \"center\",            \"imagesLoaded\": true,            \"lazyLoad\": 1,            \"freeScroll\": false,            \"wrapAround\": true,            \"autoPlay\": 6000,            \"pauseAutoPlayOnHover\" : true,            \"prevNextButtons\": true,            \"contain\" : true,            \"adaptiveHeight\" : true,            \"dragThreshold\" : 10,            \"percentPosition\": true,            \"pageDots\": true,            \"rightToLeft\": false,            \"draggable\": true,            \"selectedAttraction\": 0.1,            \"parallax\" : 0,            \"friction\": 0.6        }'\n        >\n        \n\n\n  <div class=\"banner has-hover\" id=\"banner-256160261\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n\n   <div id=\"text-box-2000122554\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                     <div data-animate=\"fadeInLeft\">           <div class=\"text-box-content text dark text-shadow-1\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\n<h1>Veto- ja venym\u00e4testi<\/h1>\n<h2>\u2013 Mekaanisten perusominaisuuksien analyysi k\u00e4\u00e4rekalvon suorituskyvylle<\/h2>\n<p>\u00a0<\/p>\n<div class=\"is-divider divider clearfix\" ><\/div>\n\n<a href=\"https:\/\/www.wrapfilmtest.com\/fi\/contact\/\" target=\"_blank\" class=\"button success box-shadow-3\" rel=\"noopener\"  >\n    <span>Pyyd\u00e4 tarjous<\/span>\n  <\/a>\n\n\n\n              <\/div>\n           <\/div>\n       <\/div>                     \n<style>\n#text-box-2000122554 {\n  width: 83%;\n}\n#text-box-2000122554 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n\n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-256160261 {\n  padding-top: 30%;\n}\n#banner-256160261 .bg.bg-loaded {\n  background-image: url(https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Test-Price-768x224.webp);\n}\n#banner-256160261 .overlay {\n  background-color: rgba(0, 0, 0, 0.25);\n}\n#banner-256160261 .bg {\n  background-position: 71% 54%;\n}\n<\/style>\n  <\/div>\n\n\n\n     <\/div>\n\n     <div class=\"loading-spin dark large centered\"><\/div>\n\n\t<\/div>\n\n\n<div class=\"row align-middle\"  id=\"row-1646440398\">\n\n\n\t<div id=\"col-398316674\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h2 class=\"lead uppercase\" style=\"text-align: left;\">K\u00e4\u00e4rikalvojen veto- ja venym\u00e4testaus<\/h2>\n<p>Tutustu veto- ja venym\u00e4testauksen kriittiseen rooliin sen varmistamisessa, ett\u00e4 venyv\u00e4t k\u00e4\u00e4rekalvot t\u00e4ytt\u00e4v\u00e4t teollisuuden kest\u00e4vyys- ja suorituskykystandardit. Opi ASTM D882:sta, ISO 527-3:sta ja edistyneist\u00e4 vetolujuuden, murtovenym\u00e4n ja murtovenym\u00e4n testausmenetelmist\u00e4.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-457224209\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1921387969\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner image-cover dark\" style=\"padding-top:75%;\">\n\t\t\t<img decoding=\"async\" width=\"309\" height=\"400\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-309x400.webp\" class=\"attachment-medium size-medium\" alt=\"K\u00e4\u00e4rikalvon kireys- ja venytystesti\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-309x400.webp 309w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-618x800.webp 618w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-768x994.webp 768w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-1187x1536.webp 1187w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-1583x2048.webp 1583w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-510x660.webp 510w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Tension-and-Stretch-Test-scaled.webp 1979w\" sizes=\"(max-width: 309px) 100vw, 309px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1921387969 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<section class=\"section\" id=\"section_695393708\">\n\t\t<div class=\"bg section-bg fill bg-fill\" >\n\n\t\t\t\n\t\t\t<div class=\"section-bg-overlay absolute fill\"><\/div>\n\t\t\t\n\t<div class=\"is-border\"\n\t\tstyle=\"border-color:rgb(235, 235, 235);border-width:1px 0px 0px 0px;\">\n\t<\/div>\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1789180590\">\n\n\n\t<div id=\"col-1906501738\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-2598486937\" class=\"text\">\n\t\t\n\n<h2 class=\"uppercase\">Miksi veto- ja venym\u00e4testaus on v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4 k\u00e4\u00e4rekalvoille?<\/h2>\n\t\t\n<style>\n#text-2598486937 {\n  text-align: left;\n  color: rgb(253, 253, 253);\n}\n#text-2598486937 > * {\n  color: rgb(253, 253, 253);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1662536441\" class=\"col medium-8 small-12 large-8\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3814432334\" class=\"text\">\n\t\t\n\n<p>K\u00e4\u00e4rekalvot, erityisesti venytysk\u00e4\u00e4re, altistuvat mekaaniselle rasitukselle kuljetuksen ja k\u00e4sittelyn aikana. Vetolujuus- ja venym\u00e4ominaisuuksien testaus varmistaa, ett\u00e4 kalvot voivat veny\u00e4 repeytym\u00e4tt\u00e4, mik\u00e4 takaa turvallisen pakkauksen.<\/p>\n<p>Wrap-kalvot on suunniteltu venym\u00e4\u00e4n vetovoiman alaisena, jolloin ne mukautuvat ep\u00e4s\u00e4\u00e4nn\u00f6llisen muotoisiin kuormiin s\u00e4ilytt\u00e4en samalla kest\u00e4vyyden. T\u00e4m\u00e4 ominaisuus v\u00e4hent\u00e4\u00e4 materiaalin k\u00e4ytt\u00f6\u00e4 vaarantamatta suojausta.<\/p>\n\t\t\n<style>\n#text-3814432334 {\n  color: rgb(255, 255, 255);\n}\n#text-3814432334 > * {\n  color: rgb(255, 255, 255);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_695393708 {\n  padding-top: 60px;\n  padding-bottom: 60px;\n  min-height: 300px;\n}\n#section_695393708 .section-bg-overlay {\n  background-color: rgba(0,0,0,.5);\n}\n#section_695393708 .section-bg.bg-loaded {\n  background-image: url(https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test.webp);\n}\n#section_695393708 .section-bg {\n  background-position: 7% 42%;\n}\n<\/style>\n\t<\/section>\n\t\n<div class=\"text-center\"><div class=\"is-divider divider clearfix\" ><\/div><\/div>\n\n\t<div id=\"text-3285374616\" class=\"text\">\n\t\t\n\n<h2>Standardit, jotka m\u00e4\u00e4rittelev\u00e4t veto- ja venym\u00e4testauksen<\/h2>\n\t\t\n<style>\n#text-3285374616 {\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\t<section class=\"section\" id=\"section_861480932\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t<div class=\"is-border\"\n\t\tstyle=\"border-color:rgb(235, 235, 235);border-width:1px 0px 0px 0px;\">\n\t<\/div>\n\n\t\t<\/div>\n\n\t\t\t<div class=\"ux-shape-divider ux-shape-divider--top ux-shape-divider--style-arrow-2\">\n\t\t<svg viewbox=\"0 0 1000 100\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" preserveaspectratio=\"none\">\n\t<path class=\"ux-shape-fill\" d=\"M1000 100H0L0 96H480.929C482.255 96 483.527 95.4732 484.464 94.5355L497.879 81.1213C499.05 79.9497 500.95 79.9497 502.121 81.1213L515.536 94.5355C516.473 95.4732 517.745 96 519.071 96H1000V100Z\"\/>\n<\/svg>\n\t<\/div>\n\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1364363428\">\n\n\n\t<div id=\"col-2005422861\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<div class=\"icon-box featured-box icon-box-top text-left\"  >\n\t\t\t\t<div class=\"icon-box-text last-reset\">\n\t\t\t\t\t\t\t\t\t\n\n<h3>ASTM D882 -standardi testausmenetelm\u00e4 ohuen muovilevyn vetoominaisuuksille<\/h3>\n<div id=\"pdp-description\">\n<div class=\"astm-type-body--lead border-top mt-3 pt-2 adv-description\"><a style=\"font-size: 14.4px;\" href=\"https:\/\/www.astm.org\/d0882-18.html\">ASTM D882<\/a><span style=\"color: #555555; font-size: 14.4px;\"> standardi keskittyy ohuiden muovikalvojen vetolujuustestaukseen, jossa m\u00e4\u00e4ritell\u00e4\u00e4n parametrit, kuten venym\u00e4nopeus, n\u00e4ytekoko ja raportointimenetelm\u00e4t tasaisuuden varmistamiseksi.<\/span><\/div>\n<div>\n<p>\u00a0<\/p>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n\t\n\t\n<a class=\"button primary\"  >\n    <span>Lis\u00e4tietoja ASTM D882:sta<\/span>\n  <\/a>\n\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1870953762\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3> Muovit \u2014 Veto-ominaisuuksien m\u00e4\u00e4ritt\u00e4minen Osa 3: Kalvojen ja levyjen testiolosuhteet<\/h3>\n<p class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www.iso.org\/standard\/70307.html\" target=\"_blank\" rel=\"noopener\">ISO 527-3<\/a> on kansainv\u00e4lisesti tunnustettu vetolujuusominaisuuksien standardi, joka korostaa muovikalvojen k\u00e4ytt\u00e4ytymist\u00e4 j\u00e4nnityksen ja venym\u00e4n alaisena.<\/p>\n<a class=\"button primary\"  >\n    <span>Lis\u00e4tietoja ISO 527-3:sta<\/span>\n  <\/a>\n\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_861480932 {\n  padding-top: 60px;\n  padding-bottom: 60px;\n  min-height: 300px;\n  background-color: rgb(245, 245, 245);\n}\n#section_861480932 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 100%;\n}\n#section_861480932 .ux-shape-divider--top .ux-shape-fill {\n  fill: #7a9c59;\n}\n<\/style>\n\t<\/section>\n\t\n\n  <div class=\"banner has-hover\" id=\"banner-1904489829\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n\n   <div id=\"text-box-1553079771\" class=\"text-box banner-layer x5 md-x5 lg-x5 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-left\">\n                  \n\n<h2 class=\"uppercase\"><strong>Kuinka veto- ja venym\u00e4testi suoritetaan<\/strong><\/h2>\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1553079771 {\n  width: 60%;\n}\n#text-box-1553079771 .text-box-content {\n  font-size: 100%;\n}\n@media (min-width:550px) {\n  #text-box-1553079771 {\n    width: 50%;\n  }\n}\n<\/style>\n    <\/div>\n \n\t<div class=\"img has-hover x100 md-x100 lg-x100 y100 md-y100 lg-y100\" id=\"image_751122288\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"528\" height=\"860\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test.webp\" class=\"attachment-medium_large size-medium_large\" alt=\"Veto- ja venym\u00e4testi\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test.webp 528w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-246x400.webp 246w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-491x800.webp 491w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-510x831.webp 510w\" sizes=\"(max-width: 528px) 100vw, 528px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_751122288 {\n  width: 33%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-1904489829 {\n  padding-top: 500px;\n}\n#banner-1904489829 .overlay {\n  background-color: rgba(0, 0, 0, 0.31);\n}\n<\/style>\n  <\/div>\n\n\n\t<section class=\"section\" id=\"section_1339831502\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\t<div class=\"ux-shape-divider ux-shape-divider--top ux-shape-divider--style-curve-opacity ux-shape-divider--flip\">\n\t\t<svg viewbox=\"0 0 1000 100\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" preserveaspectratio=\"none\">\n\t\t<path class=\"ux-shape-fill\" opacity=\"0.15\" d=\"M0 14C0 14 88.64 17.48 300 50C560 90 814 77 1003 40L1015 68L1018 104H0V14Z\"\/>\n\t\t<path class=\"ux-shape-fill\" opacity=\"0.3\" d=\"M0 45C0 45 271 90.13 500 77C657 68 830 30 1015 14V100H0V45Z\"\/>\n\t\t<path class=\"ux-shape-fill\" d=\"M0 58C0 58 188.29 90 508 90C798 90 1002 55 1002 55V100H0V58Z\"\/>\n<\/svg>\n\t<\/div>\n\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row row-large align-center\"  id=\"row-1484884705\">\n\n\n\t<div id=\"col-1573074725\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-right\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<div class=\"icon-box featured-box icon-box-top text-left\"  >\n\t\t\t\t<div class=\"icon-box-text last-reset\">\n\t\t\t\t\t\t\t\t\t\n\n<h3>Testin yleiskatsaus<\/h3>\n<p><strong>Veto- ja venym\u00e4koe<\/strong> on perustavanlaatuinen menetelm\u00e4 pakkauskalvojen, kuten venytysk\u00e4\u00e4reiden ja muiden materiaalien mekaanisten ominaisuuksien arvioimiseksi. Se mittaa, kuinka materiaali reagoi venytysvoimiin ja tarjoaa t\u00e4rkeit\u00e4 tietoja, kuten <strong>vetolujuus<\/strong>, <strong>vetovoima<\/strong>, <strong>murtovenym\u00e4<\/strong>, ja <strong>katkeavan venym\u00e4n<\/strong>. N\u00e4m\u00e4 parametrit ovat kriittisi\u00e4 arvioitaessa pakkaustuotteiden lujuutta, joustavuutta ja laadunvarmistusta.<\/p>\n<h3>Testin kuvaus<\/h3>\n<p>Tasaisen poikkileikkauksen omaava n\u00e4yte kuormitetaan j\u00e4nnityksess\u00e4 k\u00e4ytt\u00e4m\u00e4ll\u00e4 a <strong>mekaaninen testauskone, kuten <a href=\"https:\/\/www.wrapfilmtest.com\/fi\/tensile-and-elongation-tester\/\" target=\"_blank\" rel=\"noopener\">Vetotesteri TST-01<\/a><\/strong>. Testin aikana <strong>pakottaa<\/strong> ja\/tai <strong>laajennus<\/strong> tallennetaan. Pari <strong>n\u00e4ytekahvat<\/strong> k\u00e4ytet\u00e4\u00e4n pit\u00e4m\u00e4\u00e4n n\u00e4ytett\u00e4, ja n\u00e4m\u00e4 kahvat kohdistavat vetokuormituksen, mik\u00e4 saa n\u00e4ytteen pidentym\u00e4\u00e4n. The <strong>laajennus<\/strong> mitataan sitten joko suoraan ekstensometrin kautta tai ep\u00e4suorasti koneen moottoripulssien kautta, jotka ohjaavat kahvojen liikett\u00e4.<\/p>\n<p>Erilaisia yhdistelmi\u00e4 <strong>otteen erotus<\/strong> (kahvan v\u00e4linen et\u00e4isyys) ja <strong>testinopeus<\/strong> (nopeus, jolla kahvat eroavat toisistaan) k\u00e4ytet\u00e4\u00e4n simuloimaan erilaisia testausolosuhteita. N\u00e4m\u00e4 parametrit voivat vaikuttaa materiaalin k\u00e4ytt\u00e4ytymiseen testauksen aikana.<\/p>\n<p>Testitiedoista selvisi t\u00e4rkeit\u00e4 materiaaliominaisuuksia mm <strong>vetoj\u00e4nnitys<\/strong> (voima pinta-alayksikk\u00f6\u00e4 kohti) ja <strong>venym\u00e4<\/strong> (pituuden lis\u00e4ys) voidaan laskea. <strong>Vetoj\u00e4nnitys<\/strong> m\u00e4\u00e4ritet\u00e4\u00e4n tyypillisesti jakamalla kohdistettu voima n\u00e4ytteen alkuper\u00e4isell\u00e4 poikkileikkauspinta-alalla <strong>venym\u00e4<\/strong> lasketaan pituuden muutoksen perusteella suhteessa n\u00e4ytteen alkuper\u00e4iseen pituuteen.<\/p>\n<div class=\"text-right\"><div class=\"is-divider divider clearfix\" style=\"max-width:100px;\"><\/div><\/div>\n\n\t<div id=\"text-4018713474\" class=\"text\">\n\t\t\n\n<h3>Vaiheittainen testimenettely<\/h3>\n\t\t\n<style>\n#text-4018713474 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t<\/div>\n\t\n\t\n<div class=\"row row-divided\"  id=\"row-1908920018\">\n\n\n\t<div id=\"col-33543258\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<div class=\"icon-box featured-box icon-box-top text-left\"  >\n\t\t\t\t<div class=\"icon-box-text last-reset\">\n\t\t\t\t\t\t\t\t\t\n\n\t<div id=\"text-3019725672\" class=\"text\">\n\t\t\n\n<p><span style=\"font-size: 140%;\">1. Valitse oikea testerin voimaalue, mittauspituus ja n\u00e4ytteen leveys<\/span><\/p>\n<p><strong>Tietoja testialueesta:<\/strong> Tarkan ja luotettavan vetokokeen varmistamiseksi, <strong>valitse voimaalue<\/strong> niin, ett\u00e4 n\u00e4yte <strong>ep\u00e4onnistuu kahden ylemm\u00e4n kolmanneksen sis\u00e4ll\u00e4<\/strong> valitusta voimaalueesta. T\u00e4m\u00e4 varmistaa, ett\u00e4 materiaali saavuttaa lopullisen vetolujuutensa ja murtumispisteens\u00e4 samalla kun se toimii testauskoneen mittausalueella. TST-01 vetotesti tarjoaa erilaisia kuormituskennoja, kuten 30N, 50N, 100N, 200N, 300N, 500N, 700N, 1000N jne.\u00a0<\/p>\n<p>Muutama <strong>koeajot<\/strong> voi olla tarpeen m\u00e4\u00e4ritt\u00e4\u00e4 <strong>optimaalinen yhdistelm\u00e4<\/strong> \/ <strong>voimaalue<\/strong> ja <strong>n\u00e4ytteen leveys<\/strong> (tai poikkileikkausala). N\u00e4ytteen leveys vaikuttaa voiman m\u00e4\u00e4r\u00e4\u00e4n, jonka se kest\u00e4\u00e4 ennen rikkoutumista, ja voimaalueen asianmukainen s\u00e4\u00e4t\u00e4minen varmistaa, ett\u00e4 n\u00e4yte rikkoutuu odotetulla voimak\u00e4yr\u00e4n alueella, mik\u00e4 tarjoaa hy\u00f6dyllisemp\u00e4\u00e4 ja tarkempaa tietoa.<\/p>\n<p>K\u00e4\u00e4rikalvotesti\u00e4 varten normaalisti a <strong>100N tai 200N on laajasti valittu<\/strong>, n\u00e4ytteen leveys voi olla 10 mm, 15 mm, 20 mm tai 25,4 mm. Ja mittarin pituus tai kahvan pituus on asetettu 50 mm:iin tai 100 mm:iin koetestien leveyden ja venym\u00e4alueen mukaan.\u00a0<\/p>\n\t\t\n<style>\n#text-3019725672 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t<\/div>\n\t\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-84900552\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-54600951\" class=\"text\">\n\t\t\n\n<p><span style=\"font-size: 140%;\">2. N\u00e4ytteen valmistelu<\/span><\/p>\n<p><strong> Ilmastointi<\/strong>\u2014 K\u00e4sittele testin\u00e4ytteit\u00e4 23 \u00b1 2 \u00b0C:ssa (73,4 \u00b1 3,6 \u00b0F) ja 50%\u00b110 % RH:ssa v\u00e4hint\u00e4\u00e4n 40 tuntia ennen testi\u00e4, ellei toisin mainita.<\/p>\n<p><strong>Testiolosuhteet<\/strong>\u2014 Suorita testit 23\u00b12\u00b0C:ssa (73,4\u00b13,6\u00b0F) ja 50\u00b110%RH:ssa, ellei toisin sovita.<\/p>\n<p>Suosittelemme n\u00e4yteleikkurilla valmistamaa k\u00e4rjen\u00e4ytett\u00e4. K\u00e4\u00e4rikalvon\u00e4ytteiden ottamiseen on helpompi ottaa n\u00e4ytteenottoa &quot;sandwich&quot;-n\u00e4yte, jossa n\u00e4yte sijoitetaan kahden paperin v\u00e4liin.<\/p>\n\t\t\n<style>\n#text-54600951 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1743502616\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"600\" height=\"176\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/film-tensile-test-sample-cutter.webp\" class=\"attachment-large size-large\" alt=\"kalvon vetolujuusn\u00e4ytteen leikkuri\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/film-tensile-test-sample-cutter.webp 600w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/film-tensile-test-sample-cutter-510x150.webp 510w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1743502616 {\n  width: 80%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1110050930\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"548\" height=\"311\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-Sample-Preparation.webp\" class=\"attachment-large size-large\" alt=\"Veton\u00e4ytteen valmistelu\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-Sample-Preparation.webp 548w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-Sample-Preparation-510x289.webp 510w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"caption\">Veton\u00e4ytteen valmistelu<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1110050930 {\n  width: 65%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"text-center\"><div class=\"is-divider divider clearfix\" ><\/div><\/div>\n\n<div class=\"row row-divided row-box-shadow-2-hover\"  id=\"row-1394217098\">\n\n\n\t<div id=\"col-997031358\" class=\"col medium-8 small-12 large-8\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-767696460\" class=\"text\">\n\t\t\n\n<p><span style=\"font-size: 140%;\">3. Parametrien asetus ja aloita testi<\/span><\/p>\n<p>Aseta testin\u00e4yte kahvoihin <strong>Vetotesteri TST-01<\/strong>, varmistaen, ett\u00e4 <strong>n\u00e4ytteen pitk\u00e4 akseli<\/strong> on kohdistettu kuvitteelliseen linjaan, joka yhdist\u00e4\u00e4 <strong>kahvan kiinnityspisteet<\/strong> koneessa. T\u00e4m\u00e4 kohdistus varmistaa, ett\u00e4 voima kohdistetaan tasaisesti n\u00e4ytteen pituudelle. Kirist\u00e4 kahvat <strong>tasaisesti ja lujasti<\/strong>, varmistaen n\u00e4ytteen tukevan pidon, jotta se ei liukastu testin aikana. Tartuntavoiman tulee olla riitt\u00e4v\u00e4 minimoimaan liukumisen, mutta ei niin tiukka, ett\u00e4 se vahingoittaisi n\u00e4ytekappaletta tai ennenaikaista vikaa tarttumispisteiss\u00e4.<\/p>\n<p><span class=\"fontstyle0\">Aseta testerin ristip\u00e4\u00e4n nopeus 300 mm\/min tai muuhun.\u00a0<\/span>Aloita ulkonematesti painamalla testerin TEST-painiketta.<\/p>\n\t\t\n<style>\n#text-767696460 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1864817573\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"400\" height=\"800\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-400x800.webp\" class=\"attachment-large size-large\" alt=\"N\u00e4yte tartunta\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-400x800.webp 400w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-200x400.webp 200w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-768x1536.webp 768w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-1024x2048.webp 1024w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping-510x1020.webp 510w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Sample-gripping.webp 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"caption\">N\u00e4yte tartunta<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1864817573 {\n  width: 30%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-82918518\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_260536230\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"181\" height=\"400\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-in-Process-181x400.webp\" class=\"attachment-medium size-medium\" alt=\"Veto- ja venym\u00e4testi k\u00e4ynniss\u00e4\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-in-Process-181x400.webp 181w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-in-Process-362x800.webp 362w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Tensile-and-Elongation-Test-in-Process.webp 428w\" sizes=\"(max-width: 181px) 100vw, 181px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"caption\">Veto- ja venym\u00e4testi k\u00e4ynniss\u00e4<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_260536230 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-623941121\">\n\n\n\t<div id=\"col-1978076084\" class=\"col medium-10 small-12 large-10\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-172319866\" class=\"text\">\n\t\t\n\n<p><span style=\"font-size: 140%;\">4. Testituloksen laskeminen<\/span><\/p>\n\t\t\n<style>\n#text-172319866 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-706638962\">\n\n\n\t<div id=\"col-1812902597\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-359288764\" class=\"text\">\n\t\t\n\n<p><strong>Maksimivoima<\/strong>: Testin aikana saatu maksimivoima. Suurin voima voi esiinty\u00e4 my\u00f6t\u00f6rajassa, murtumispisteess\u00e4 tai my\u00f6t\u00f6rajan ja murtumispisteen v\u00e4lisell\u00e4 alueella.<\/p>\n\t\t\n<style>\n#text-359288764 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1803111068\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3741611648\" class=\"text\">\n\t\t\n\n<p><strong>Vetolujuus<\/strong> lasketaan jakamalla suurin voima n\u00e4ytteen alkuper\u00e4isell\u00e4 keskim\u00e4\u00e4r\u00e4isell\u00e4 poikkileikkausalalla. Tulos ilmaistaan voimana pinta-alayksikk\u00f6\u00e4 kohti, yleens\u00e4 megapascaleina, MPa.\u00a0<\/p>\n\t\t\n<style>\n#text-3741611648 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1298164420\">\n\n\n\t<div id=\"col-456723204\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-1549201030\" class=\"text\">\n\t\t\n\n<p><strong>Prosenttivenym\u00e4 murtokohdassa<\/strong> lasketaan jakamalla pidennys n\u00e4ytteen repe\u00e4mishetkell\u00e4 n\u00e4ytteen alkuper\u00e4isell\u00e4 mittauspituudella ja<br \/>kerrotaan 100:lla.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-477 aligncenter\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Elongation-calculation-formula.webp\" alt=\"Venym\u00e4n laskentakaava\" width=\"495\" height=\"65\" \/><\/p>\n\t\t\n<style>\n#text-1549201030 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1573074725 > .col-inner {\n  padding: 55px 0px 0px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1339831502 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n#section_1339831502 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 100%;\n}\n#section_1339831502 .ux-shape-divider--top .ux-shape-fill {\n  fill: #7a9c59;\n}\n<\/style>\n\t<\/section>\n\t\n\n  <div class=\"banner has-hover\" id=\"banner-122305040\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n\n   <div id=\"text-box-1860600857\" class=\"text-box banner-layer x95 md-x95 lg-x95 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-right\">\n                  \n\n\t<div id=\"text-592398221\" class=\"text\">\n\t\t\n\n<h2 class=\"h-large uppercase\" style=\"text-align: right;\">Tarvitsetko veto- ja venym\u00e4testausratkaisuja?<\/h2>\n<p>Etsitk\u00f6 luotettavia veto- ja venym\u00e4testausratkaisuja? Edistyksellinen testauslaitteistomme tuottaa tarkkoja tuloksia, jotka auttavat sinua arvioimaan materiaalin lujuutta, venym\u00e4\u00e4 ja paljon muuta. Olitpa sitten tuotannon, tutkimuksen tai laadunvalvonnan parissa, meill\u00e4 on sinulle oikea ratkaisu. <strong>Ota yhteytt\u00e4 jo t\u00e4n\u00e4\u00e4n<\/strong> r\u00e4\u00e4t\u00e4l\u00f6ityj\u00e4 testausratkaisuja ja asiantuntijatukea varten<\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-592398221 {\n  text-align: right;\n}\n<\/style>\n\t<\/div>\n\t\n<a href=\"https:\/\/www.wrapfilmtest.com\/fi\/tensile-and-elongation-tester\/\" target=\"_blank\" class=\"button white is-outline\" rel=\"noopener\"  >\n    <span>Tarkista vetotesteri TST-01<\/span>\n  <\/a>\n\n\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1860600857 {\n  width: 60%;\n}\n#text-box-1860600857 .text-box-content {\n  font-size: 100%;\n}\n@media (min-width:550px) {\n  #text-box-1860600857 {\n    width: 51%;\n  }\n}\n<\/style>\n    <\/div>\n \n\t<div class=\"img has-hover x0 md-x0 lg-x0 y100 md-y100 lg-y100\" id=\"image_1046528184\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"148\" height=\"400\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester-148x400.webp\" class=\"attachment-medium size-medium\" alt=\"TST-01 veto- ja venym\u00e4testeri\" srcset=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester-148x400.webp 148w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester-296x800.webp 296w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester-568x1536.webp 568w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester-510x1380.webp 510w, https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/TST-01-Tensile-and-Elongation-Tester.webp 626w\" sizes=\"(max-width: 148px) 100vw, 148px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1046528184 {\n  width: 39%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-122305040 {\n  padding-top: 500px;\n}\n#banner-122305040 .overlay {\n  background-color: rgba(0, 0, 0, 0.2);\n}\n<\/style>\n  <\/div>\n\n\n\t<section class=\"section\" id=\"section_1610880214\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1660081378\">\n\n\n\t<div id=\"col-1225661019\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n<h2 style=\"text-align: center;\"><span style=\"color: #000000;\">Usein kysytyt kysymykset koskien ASTM D5748 ulkoneman puhkaisujen kest\u00e4vyystesti\u00e4<\/span><\/h2>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row align-equal row-solid\"  id=\"row-840346224\">\n\n\n\t<div id=\"col-704740131\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Mik\u00e4 merkitys veto- ja venym\u00e4testauksella on materiaalin karakterisoinnissa?<\/h3>\n<p>Veto- ja venym\u00e4testaus on olennainen materiaalien tunnistamisessa ja karakterisoinnissa, jolloin saadaan kriittist\u00e4 tietoa niiden mekaanisista ominaisuuksista, kuten esim. <strong>vahvuus<\/strong>, <strong>joustavuus<\/strong>, ja <strong>kest\u00e4vyys<\/strong>. N\u00e4m\u00e4 testit auttavat valmistajia ja tutkijoita m\u00e4\u00e4ritt\u00e4m\u00e4\u00e4n, t\u00e4ytt\u00e4\u00e4k\u00f6 materiaali <strong>ohjata<\/strong> ja <strong>erittely<\/strong> vaatimukset. Ker\u00e4tyt tiedot voivat my\u00f6s ohjata asiaan liittyvi\u00e4 p\u00e4\u00e4t\u00f6ksi\u00e4 <strong>materiaalin valinta<\/strong>, laadunvalvonta ja uusien materiaalien kehitt\u00e4minen. Vetotestien tulokset ovat arvokkaita, jotta voidaan ymm\u00e4rt\u00e4\u00e4 materiaalin kyky kest\u00e4\u00e4 rasitusta ja varmistaa, ett\u00e4 se sopii aiottuun k\u00e4ytt\u00f6tarkoitukseensa.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1621436177\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Miksi on t\u00e4rke\u00e4\u00e4 noudattaa vakiomenettelyj\u00e4 suoritettaessa vetokokeita?<\/h3>\n<p>Vetotestin tuloksiin voivat merkitt\u00e4v\u00e4sti vaikuttaa tekij\u00e4t, kuten <strong>n\u00e4ytteen paksuus<\/strong>, <strong>testausnopeus<\/strong>, <strong>pitotyyppi<\/strong>, ja <strong>laajennusmittausmenetelm\u00e4<\/strong>. Varmistaaksesi <strong>tarkkoja ja luotettavia tuloksia<\/strong>, on t\u00e4rke\u00e4\u00e4 noudattaa vahvistettuja <strong>testausstandardit<\/strong>, kuten ASTM D882 tai ISO 527. N\u00e4m\u00e4 standardit m\u00e4\u00e4rittelev\u00e4t <strong>testausolosuhteet<\/strong>, jota on valvottava huolellisesti johdonmukaisuuden ja toistettavuuden varmistamiseksi. Lis\u00e4ksi erityist\u00e4 <strong>materiaalin tiedot<\/strong> saattaa vaatia muutoksia vakiomenettelyihin, joten on t\u00e4rke\u00e4\u00e4 viitata n\u00e4ihin eritelmiin ennen testin suorittamista vaatimustenmukaisuuden ja mielekk\u00e4iden vertailujen varmistamiseksi.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-2134141063\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Miten vetoominaisuudet vaikuttavat materiaalin kehitykseen ja laadunvalvontaan?<\/h3>\n<p><span style=\"color: #555555; font-size: 14.4px;\">Vetoominaisuudet, kuten <\/span><strong style=\"color: #555555; font-size: 14.4px;\">vetolujuus<\/strong><span style=\"color: #555555; font-size: 14.4px;\">, <\/span><strong style=\"color: #555555; font-size: 14.4px;\">murtovenym\u00e4<\/strong><span style=\"color: #555555; font-size: 14.4px;\">, ovat t\u00e4rkeit\u00e4 <\/span><strong style=\"color: #555555; font-size: 14.4px;\">tutkimusta ja kehityst\u00e4<\/strong><span style=\"color: #555555; font-size: 14.4px;\"> samoin kuin <\/span><strong style=\"color: #555555; font-size: 14.4px;\">laadunvalvonta<\/strong><span style=\"color: #555555; font-size: 14.4px;\"> valmistuksessa. N\u00e4m\u00e4 ominaisuudet auttavat arvioimaan materiaalien suorituskyky\u00e4 todellisissa sovelluksissa. Esimerkiksi, <\/span><strong style=\"color: #555555; font-size: 14.4px;\">vetolujuus<\/strong><span style=\"color: #555555; font-size: 14.4px;\"> ilmaisee, kuinka paljon rasitusta materiaali kest\u00e4\u00e4 ennen rikkoutumista <\/span><strong style=\"color: #555555; font-size: 14.4px;\">venym\u00e4<\/strong><span style=\"color: #555555; font-size: 14.4px;\"> tarjoaa k\u00e4sityksen sen kyvyst\u00e4 veny\u00e4 ilman ep\u00e4onnistumista. Johdonmukaisen testauksen avulla valmistajat voivat varmistaa, ett\u00e4 materiaalit t\u00e4ytt\u00e4v\u00e4t vaaditut standardit ja toimivat odotetulla tavalla erilaisissa ymp\u00e4rist\u00f6iss\u00e4. Valmistajat voivat my\u00f6s optimoida tuotteensa ja varmistaa, ett\u00e4 ne t\u00e4ytt\u00e4v\u00e4t testiolosuhteiden tarkan hallinnan <\/span><strong style=\"color: #555555; font-size: 14.4px;\">laadunvarmistus<\/strong><span style=\"color: #555555; font-size: 14.4px;\"> kriteerit.<\/span><\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-518190410\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Mitk\u00e4 tekij\u00e4t voivat vaikuttaa k\u00e4\u00e4rekalvojen veto- ja venym\u00e4testien tuloksiin?<\/h3>\n<p>Useat tekij\u00e4t voivat vaikuttaa k\u00e4\u00e4rekalvojen veto- ja venym\u00e4testien tuloksiin, mukaan lukien <strong>n\u00e4ytteen valmistus<\/strong>, <strong>testinopeus<\/strong>, <strong>ymp\u00e4rist\u00f6olosuhteet (esim. kosteus ja l\u00e4mp\u00f6tila)<\/strong>, ja <strong>kalvon paksuus<\/strong>. N\u00e4ytteen kohdistus testauskoneessa ja k\u00e4ytettyjen kahvojen tyyppi ovat my\u00f6s kriittisi\u00e4. Tarkkojen tulosten saamiseksi on t\u00e4rke\u00e4\u00e4 noudattaa standardoituja menetelmi\u00e4 (kuten ASTM D882) ja suorittaa testej\u00e4 kontrolloiduissa olosuhteissa.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\n<style>\n#row-840346224 > .col > .col-inner {\n  padding: 30px 30px 30px 30px;\n}\n<\/style>\n<\/div>\n<div class=\"row align-equal row-solid\"  id=\"row-1581846451\">\n\n\n\t<div id=\"col-652942551\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Miten murtovenym\u00e4 lasketaan k\u00e4\u00e4rekalvoille?<\/h3>\n<p>Murtovenym\u00e4 lasketaan mittaamalla kalvon\u00e4ytteen pituuden muutos vetokokeen aikana. Kaava on:<\/p>\n<figure id=\"attachment_477\" aria-describedby=\"caption-attachment-477\" style=\"width: 495px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-477\" src=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Elongation-calculation-formula.webp\" alt=\"Venym\u00e4n laskentakaava\" width=\"495\" height=\"65\" \/><figcaption id=\"caption-attachment-477\" class=\"wp-caption-text\">Venym\u00e4n laskentakaava<\/figcaption><\/figure>\n<p>T\u00e4m\u00e4 mittaus osoittaa maksimaalisen venytyksen, jonka kalvo voi kest\u00e4\u00e4 ennen kuin se rikkoutuu, ja antaa k\u00e4sityksen sen joustavuudesta ja taipuisuudesta, mik\u00e4 on kriittist\u00e4 pakkausmateriaaleille, joiden on venytt\u00e4v\u00e4 repeytym\u00e4tt\u00e4.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-133161682\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Miten k\u00e4\u00e4rekalvon veto- ja venym\u00e4testit vaikuttavat laadunvalvontaan?<\/h3>\n<p>Veto- ja venym\u00e4testit ovat v\u00e4ltt\u00e4m\u00e4tt\u00f6mi\u00e4 <strong>laadunvalvonta<\/strong> k\u00e4\u00e4rekalvojen valmistuksessa. Varmistamalla, ett\u00e4 kalvot t\u00e4ytt\u00e4v\u00e4t tietyt lujuus- ja venym\u00e4kriteerit, valmistajat voivat taata tuotteen johdonmukaisuuden ja suorituskyvyn. N\u00e4m\u00e4 testit auttavat my\u00f6s havaitsemaan vikoja, kuten heikkoja kohtia tai liiallista haurautta, jotka voivat johtaa ep\u00e4onnistumiseen k\u00e4yt\u00f6n aikana. S\u00e4\u00e4nn\u00f6llinen testaus antaa valmistajille mahdollisuuden tehd\u00e4 muutoksia kalvon koostumukseen tai tuotantoprosessiin ja varmistaa, ett\u00e4 lopputuote t\u00e4ytt\u00e4\u00e4 vaaditut standardit ja toimii odotetusti todellisissa olosuhteissa.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\n<style>\n#row-1581846451 > .col > .col-inner {\n  padding: 30px 30px 30px 30px;\n}\n<\/style>\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1610880214 {\n  padding-top: 60px;\n  padding-bottom: 60px;\n  background-color: rgb(255,255,255);\n}\n<\/style>\n\t<\/section>\n\t\n<div class=\"container section-title-container\" ><h3 class=\"section-title section-title-center\"><b><\/b><span class=\"section-title-main\" >Lis\u00e4\u00e4 k\u00e4\u00e4rekalvotestej\u00e4<\/span><b><\/b><\/h3><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":20,"parent":0,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"footnotes":""},"class_list":["post-453","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tensile and Elongation Test - Wrap Film Test<\/title>\n<meta name=\"description\" content=\"Tensile and elongation testing is crucial for evaluating the strength and flexibility of stretch wrap films. Compliant with ASTM D882 and ISO 527-3, these tests provide insights into tensile strength, elongation at break, and overall film performance for industrial applications.\" \/>\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\/fi\/tensile-and-elongation-test\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ensure the Strength and Flexibility of Your Wrap Films with Tensile and Elongation Testing\" \/>\n<meta property=\"og:description\" content=\"Discover the importance of tensile and elongation testing for stretch wrap films. Compliant with ASTM D882 and ISO 527-3, these tests evaluate strength, flexibility, and film performance under stress\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wrapfilmtest.com\/fi\/tensile-and-elongation-test\" \/>\n<meta property=\"og:site_name\" content=\"Wrap Film Test\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-13T09:10:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Test-site-logo.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"836\" \/>\n\t<meta property=\"og:image:height\" content=\"238\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Tensile and Elongation Testing: Key to Durable Wrap Films\" \/>\n<meta name=\"twitter:description\" content=\"Strengthen your wrap films with tensile and elongation testing. Compliant with ASTM D882 and ISO 527-3, our tests ensure your films meet performance standards for industrial applications. #FilmTesting #TensileStrength #Packaging\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2024\/12\/Wrap-Film-Test-site-logo.webp\" \/>\n<meta name=\"twitter:label1\" content=\"Arvioitu lukuaika\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minuuttia\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wrapfilmtest.com\/tensile-and-elongation-test\",\"url\":\"https:\/\/www.wrapfilmtest.com\/tensile-and-elongation-test\",\"name\":\"Tensile and Elongation Test - Wrap Film Test\",\"isPartOf\":{\"@id\":\"https:\/\/www.wrapfilmtest.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.wrapfilmtest.com\/tensile-and-elongation-test#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.wrapfilmtest.com\/tensile-and-elongation-test#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.wrapfilmtest.com\/wp-content\/uploads\/2016\/08\/dummy-1.jpg\",\"datePublished\":\"2024-12-23T06:47:34+00:00\",\"dateModified\":\"2025-01-13T09:10:44+00:00\",\"description\":\"Tensile and elongation testing is crucial for evaluating the strength and flexibility of stretch wrap films. 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