{"id":561,"date":"2025-07-03T02:03:31","date_gmt":"2025-07-03T02:03:31","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?p=561"},"modified":"2025-07-04T01:20:17","modified_gmt":"2025-07-04T01:20:17","slug":"astm-d4918-static-friction-test","status":"publish","type":"post","link":"https:\/\/www.coefficientfriction.com\/sl\/astm-d4918-static-friction-test","title":{"rendered":"Navodila za testiranje stati\u010dnega trenja na podlagi standarda ASTM D4918"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"561\" class=\"elementor elementor-561\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bd29f83 e-flex e-con-boxed e-con e-parent\" data-id=\"bd29f83\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b206fa elementor-widget elementor-widget-heading\" data-id=\"1b206fa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Stati\u010dni preskus trenja in ASTM D4918<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4d9c25a e-flex e-con-boxed e-con e-parent\" data-id=\"4d9c25a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-00bf54d elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"00bf54d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"351\" data-end=\"855\">Razumevanje <strong data-start=\"369\" data-end=\"393\">preskus stati\u010dnega trenja<\/strong> je klju\u010dnega pomena za strokovnjake, ki se ukvarjajo z nadzorom kakovosti, pakiranjem, testiranjem papirja in sorodnimi panogami. Po podatkih <strong data-start=\"515\" data-end=\"529\">ASTM D4918<\/strong>ta metoda dolo\u010da, kako dolo\u010diti stati\u010dni koeficient trenja papirja in kartona z uporabo nagnjene ravnine. Ta preskus je \u0161e posebej pomemben za embala\u017eo, kjer lahko drsni upor med povr\u0161inami kartona ali \u0161katle bistveno vpliva na u\u010dinkovitost zlaganja, prevoza in rokovanja.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fb1009b e-flex e-con-boxed e-con e-parent\" data-id=\"fb1009b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53cd760 elementor-widget elementor-widget-heading\" data-id=\"53cd760\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pomen stati\u010dnega testiranja trenja pri uporabi embala\u017ee<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ce48346 e-flex e-con-boxed e-con e-parent\" data-id=\"ce48346\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ff77a67 elementor-widget elementor-widget-text-editor\" data-id=\"ff77a67\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"930\" data-end=\"1306\">Trenje med povr\u0161inami papirja vpliva na u\u010dinkovitost materiala pri samodejnem pakiranju, stabilnost pri odpremi in varnost pri zlaganju. Na spletni strani . <strong data-start=\"1067\" data-end=\"1107\">stati\u010dni koeficient trenja (COF)<\/strong> se nana\u0161a na silo, potrebno za za\u010detek drsenja med dvema povr\u0161inama, v nasprotju s kineti\u010dno COF, ki se nana\u0161a na nadaljevanje gibanja. . <strong data-start=\"1244\" data-end=\"1268\">preskus stati\u010dnega trenja<\/strong> se osredoto\u010da na to. <em data-start=\"1285\" data-end=\"1305\">za\u010detna odpornost<\/em>.<\/p><p data-start=\"1308\" data-end=\"1639\"><strong data-start=\"1308\" data-end=\"1322\">ASTM D4918<\/strong> je namenjen predvsem za <strong data-start=\"1349\" data-end=\"1389\">nepremazani papirji za pisanje in tiskanje<\/strong>, vendar se lahko uporablja tudi za druge vrste, kot so valovite in masivne vlaknene plo\u0161\u010de, \u010de se ustrezno prilagodi njihovim edinstvenim zna\u010dilnostim. \u0160e posebej je uporaben pri dolo\u010danju zmogljivosti ravnanja z embala\u017enimi materiali pred natovarjanjem izdelkov.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f20f20f e-flex e-con-boxed e-con e-parent\" data-id=\"f20f20f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e776f66 elementor-widget elementor-widget-heading\" data-id=\"e776f66\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Preskus COF kartona in koeficient trenja materialov za \u0161katle<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7345d2d e-flex e-con-boxed e-con e-parent\" data-id=\"7345d2d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b08d779 elementor-widget elementor-widget-text-editor\" data-id=\"b08d779\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"1711\" data-end=\"2069\">V sektorju embala\u017ee je razumevanje <strong data-start=\"1754\" data-end=\"1773\">test COF za kartonsko embala\u017eo<\/strong> je bistvenega pomena. S tem preskusom se oceni, koliko trenja je prisotnega med povr\u0161inami \u0161katel, kar neposredno vpliva na zlaganje in stabilnost palete. Visoka <strong data-start=\"1920\" data-end=\"1954\">koeficient trenja \u0161katle<\/strong> material zagotavlja, da \u0161katle med po\u0161iljanjem ne zdrsnejo, nizka vrednost COF pa omogo\u010da enostavno sprostitev med samodejnim pakiranjem.<\/p><p data-start=\"2071\" data-end=\"2379\">Uporaba spletne strani <a href=\"https:\/\/store.astm.org\/d4918-97r07.html\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"2077\" data-end=\"2091\">ASTM D4918<\/strong><\/a>, metoda nagnjene ravnine simulira dejanske pogoje, kar proizvajalcem omogo\u010da, da ugotovijo, ali material na osnovi papirja ali \u0161katle nudi zadostno torno odpornost. Za\u010detni kot zdrsa se zabele\u017ei med preskusom, da se izra\u010duna <strong data-start=\"2332\" data-end=\"2346\">stati\u010dni COF<\/strong> s tangento tega kota.<\/p><p data-start=\"2071\" data-end=\"2379\">Za podjetja, ki proizvajajo ali uporabljajo papirnate kartone, zanesljiva vrednost COF zagotavlja varnost delovanja in skladnost z zakonodajo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8aba3a6 e-flex e-con-boxed e-con e-parent\" data-id=\"8aba3a6\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6179b7e elementor-widget elementor-widget-heading\" data-id=\"6179b7e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Kako izvesti preskus stati\u010dnega trenja z uporabo standarda ASTM D4918<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a7c17bb e-flex e-con-boxed e-con e-parent\" data-id=\"a7c17bb\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-98f3925 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"98f3925\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p>\u00a0<\/p><p>\u00a0<\/p><p>Tukaj je splo\u0161ni pregled <strong data-start=\"2605\" data-end=\"2629\">preskus stati\u010dnega trenja<\/strong> postopek v skladu s smernicami ASTM D4918:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3e3781 elementor-widget elementor-widget-video\" data-id=\"e3e3781\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=WhCQu7dJkI8&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bbc87ee e-flex e-con-boxed e-con e-parent\" data-id=\"bbc87ee\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03d6e88 elementor-widget elementor-widget-heading\" data-id=\"03d6e88\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Preskusna oprema<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e2de683 e-flex e-con-boxed e-con e-parent\" data-id=\"e2de683\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a492111 elementor-widget elementor-widget-text-editor\" data-id=\"a492111\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Uporabite tester trenja z <strong data-start=\"2728\" data-end=\"2756\">mehanizem nagnjene ravnine<\/strong>, kot je npr. <strong data-start=\"2770\" data-end=\"2797\"><a href=\"https:\/\/www.coefficientfriction.com\/sl\/\">Cell Instruments<\/a> COF-03<\/strong>ki izpolnjuje zahteve standarda ASTM D4918. Zasnovan je tako, da zagotavlja natan\u010dne vrednosti COF za papir in embala\u017ene materiale.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f8c46b2 e-flex e-con-boxed e-con e-parent\" data-id=\"f8c46b2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-817c116 elementor-widget elementor-widget-heading\" data-id=\"817c116\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Priprava vzorca<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ab92f9c e-flex e-con-boxed e-con e-parent\" data-id=\"ab92f9c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e8c8a9 elementor-widget elementor-widget-text-editor\" data-id=\"4e8c8a9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li data-start=\"2949\" data-end=\"2994\">Iz vzor\u010dnega lista izre\u017eite dva preskusna primerka.<\/li><li data-start=\"2997\" data-end=\"3084\">Prepri\u010dajte se, da sta oba dela ravna, brez gub in v okviru standardnega odstopanja velikosti.<\/li><li data-start=\"3087\" data-end=\"3163\">Vzorce pripravite v standardizirani atmosferi (obi\u010dajno 23 \u00b0C, 50% RH).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-63cf402 e-flex e-con-boxed e-con e-parent\" data-id=\"63cf402\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b8be051 elementor-widget elementor-widget-heading\" data-id=\"b8be051\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Preskusni postopek<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-117ac1f e-flex e-con-boxed e-con e-parent\" data-id=\"117ac1f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8a7456d elementor-widget elementor-widget-text-editor\" data-id=\"8a7456d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li data-start=\"3193\" data-end=\"3276\">En primerek postavite na nagnjeno ravnino (fiksno), drugega pa na vrh (premi\u010dne sani).<\/li><li data-start=\"3279\" data-end=\"3340\">Po\u010dasi nagibajte ravnino, dokler zgornji vzorec ne za\u010dne drseti.<\/li><li data-start=\"3343\" data-end=\"3387\">Zapi\u0161ite kot, pod katerim se za\u010dne gibanje.<\/li><li data-start=\"3390\" data-end=\"3448\">Spletna stran <strong data-start=\"3394\" data-end=\"3428\">stati\u010dni koeficient trenja<\/strong> se izra\u010duna kot:<\/li><li><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u03bcs=tan(\u03b8)\\mu_s = \\tan(\\theta)<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03bc<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">s<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mop\">tan<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">\u03b8<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/li><li data-start=\"3486\" data-end=\"3534\">kjer je <span class=\"katex\"><span class=\"katex-mathml\">\u03b8\\theta<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">\u03b8<\/span><\/span><\/span><\/span> je kot za\u010detnega zdrsa.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-62ec983 e-flex e-con-boxed e-con e-parent\" data-id=\"62ec983\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c5c413 elementor-widget elementor-widget-heading\" data-id=\"9c5c413\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Interpretacija rezultatov<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2c7d41a e-flex e-con-boxed e-con e-parent\" data-id=\"2c7d41a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a138184 elementor-widget elementor-widget-text-editor\" data-id=\"a138184\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"3569\" data-end=\"3735\">Izmerjene vrednosti primerjajte z zahtevami glede zmogljivosti va\u0161ega izdelka. Visok COF je za\u017eelen za stabilnost pri zlaganju, medtem ko nizek COF podpira postopke avtomatizacije.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-94536be e-flex e-con-boxed e-con e-parent\" data-id=\"94536be\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a095661 elementor-widget elementor-widget-heading\" data-id=\"a095661\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Zakaj izbrati tester Cell Instruments COF-03?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5284a6c e-flex e-con-boxed e-con e-parent\" data-id=\"5284a6c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f569e84 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f569e84\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"3793\" data-end=\"3973\">Laboratorijem in podjetjem za pakiranje, ki \u017eelijo izvesti natan\u010dno analizo COF, priporo\u010damo <strong data-start=\"3895\" data-end=\"3959\">Cell Instruments Tester koeficienta trenja Model <a href=\"https:\/\/www.coefficientfriction.com\/sl\/inclined-plane-coefficient-of-friction-tester\/\">COF-03<\/a><\/strong>. Ta naprava:<\/p><ul><li data-start=\"3977\" data-end=\"4024\">V skladu z <strong data-start=\"3991\" data-end=\"4005\">ASTM D4918<\/strong> in standardi ISO.<\/li><li data-start=\"4027\" data-end=\"4081\">Podpira oba <strong data-start=\"4041\" data-end=\"4067\">stati\u010dni in kineti\u010dni COF<\/strong> meritve.<\/li><li data-start=\"4084\" data-end=\"4156\">Ponuja visoko ponovljivost z naprednim digitalnim krmiljenjem in izpisom podatkov.<\/li><li data-start=\"4159\" data-end=\"4267\">Ima vzdr\u017eljiv mehanizem z nagnjeno ravnino, ki je idealen za presku\u0161anje razli\u010dnih vrst papirja in valovitih materialov.<\/li><\/ul><p data-start=\"4269\" data-end=\"4424\">Z uporabo naprave COF-03 lahko uporabniki pridobijo zanesljive, standardizirane podatke, ki so bistveni za optimizacijo zasnove embala\u017ee in skladnost z varnostnimi standardi v logistiki.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca5dd74 elementor-widget elementor-widget-image\" data-id=\"ca5dd74\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-03-Inclined-Plane-Coefficient-of-Friction-Tester-5_\u526f\u672c.webp\" class=\"attachment-large size-large wp-image-566\" alt=\"ASTM D4918 - preskus stati\u010dnega trenja\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-03-Inclined-Plane-Coefficient-of-Friction-Tester-5_\u526f\u672c.webp 750w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-03-Inclined-Plane-Coefficient-of-Friction-Tester-5_\u526f\u672c-300x300.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-03-Inclined-Plane-Coefficient-of-Friction-Tester-5_\u526f\u672c-150x150.webp 150w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-03-Inclined-Plane-Coefficient-of-Friction-Tester-5_\u526f\u672c-12x12.webp 12w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-389c3b7 e-flex e-con-boxed e-con e-parent\" data-id=\"389c3b7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c219f3 elementor-widget elementor-widget-heading\" data-id=\"7c219f3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Uporaba poleg testiranja papirja<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b419682 e-flex e-con-boxed e-con e-parent\" data-id=\"b419682\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-81535ce elementor-widget elementor-widget-text-editor\" data-id=\"81535ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"4469\" data-end=\"4565\">Spletna stran <strong data-start=\"4473\" data-end=\"4497\">preskus stati\u010dnega trenja<\/strong> metoda presega testiranje papirja in kartona. Uporabna je za:<\/p><ul><li data-start=\"4568\" data-end=\"4599\"><strong data-start=\"4568\" data-end=\"4599\">Obna\u0161anje tekstilnega medslojnega materiala<\/strong><\/li><li data-start=\"4602\" data-end=\"4635\"><strong data-start=\"4602\" data-end=\"4635\">Laminirani embala\u017eni materiali<\/strong><\/li><li data-start=\"4638\" data-end=\"4694\"><strong data-start=\"4638\" data-end=\"4694\">Zna\u010dilnosti zdrsa kartona pri nosilcih pija\u010d<\/strong><\/li><li data-start=\"4697\" data-end=\"4742\"><strong data-start=\"4697\" data-end=\"4742\">Farmacevtska embala\u017ea v blistrih trenje<\/strong><\/li><\/ul><p data-start=\"4744\" data-end=\"4888\">Ta spoznanja pomagajo proizvajalcem pri oblikovanju varnej\u0161ih in u\u010dinkovitej\u0161ih sistemov pakiranja, ki zmanj\u0161ujejo po\u0161kodbe izdelkov in izbolj\u0161ujejo zdru\u017eljivost strojev.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8ae1d49 e-flex e-con-boxed e-con e-parent\" data-id=\"8ae1d49\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5aa1670 elementor-widget elementor-widget-heading\" data-id=\"5aa1670\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Kon\u010dne misli<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-607e70d e-flex e-con-boxed e-con e-parent\" data-id=\"607e70d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1874455 elementor-widget elementor-widget-text-editor\" data-id=\"1874455\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"4914\" data-end=\"5277\">Ustrezno izveden <strong data-start=\"4934\" data-end=\"4958\">preskus stati\u010dnega trenja<\/strong> upo\u0161tevanje standarda ASTM D4918 omogo\u010da in\u017eenirjem za embala\u017eo, razvijalcem materialov in strokovnjakom za nadzor kakovosti, da zagotovijo, da embala\u017ea iz papirja in kartona deluje v skladu s pri\u010dakovanji v dejanskih pogojih uporabe. Testiranje COF zagotavlja klju\u010dne informacije, ne glede na to, ali gre za prepre\u010devanje zdrsa \u0161katle pri po\u0161iljanju ali za optimizacijo avtomatskih pakirnih linij.<\/p><p data-start=\"5279\" data-end=\"5550\">Vlaganje v zanesljivo preskusno opremo, kot je <strong data-start=\"5321\" data-end=\"5349\">Cell Instruments' COF-03<\/strong> zagotavlja dosledne in natan\u010dne rezultate pri razli\u010dnih materialih. Za strokovnjake za embala\u017eo, ki \u017eelijo izpolniti standarde kakovosti in izbolj\u0161ati u\u010dinkovitost izdelkov, je obvladovanje te preskusne metode bistvenega pomena.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d822f74 e-flex e-con-boxed e-con e-parent\" data-id=\"d822f74\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0d08481 elementor-widget elementor-widget-heading\" data-id=\"0d08481\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Pogosta vpra\u0161anja<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-db120a1 e-flex e-con-boxed e-con e-parent\" data-id=\"db120a1\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e5d76a elementor-widget elementor-widget-text-editor\" data-id=\"2e5d76a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"5567\" data-end=\"5814\"><strong data-start=\"5567\" data-end=\"5644\">V1: Kak\u0161na je glavna razlika med stati\u010dnim in kineti\u010dnim preskusom trenja?<\/strong><br data-start=\"5644\" data-end=\"5647\" \/>O: Stati\u010dno trenje meri silo za za\u010detek gibanja, kineti\u010dno trenje pa silo za nadaljevanje gibanja. Standard ASTM D4918 se osredoto\u010da le na stati\u010dno trenje.<\/p><p data-start=\"5816\" data-end=\"6012\"><strong data-start=\"5816\" data-end=\"5864\">V2: Ali se lahko standard ASTM D4918 uporablja za premazan papir?<\/strong><br data-start=\"5864\" data-end=\"5867\" \/>O: \u010ceprav je bil primarno razvit za nepremazan papir, ga je mogo\u010de uporabiti tudi za druge papirje, \u010de se testira previdno in z razumevanjem zmanj\u0161ane natan\u010dnosti.<\/p><p data-start=\"6014\" data-end=\"6210\"><strong data-start=\"6014\" data-end=\"6079\">V3: Kak\u0161en je sprejemljiv razpon stati\u010dnega COF v embala\u017ei?<\/strong><br data-start=\"6079\" data-end=\"6082\" \/>O: Sprejemljiv razpon se razlikuje glede na panogo. Na primer, za materiale za \u0161katle je lahko za zagotovitev stabilnosti pri zlaganju potreben COF nad 0,4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Static Friction Test and ASTM D4918 Understanding the static friction test is crucial for professionals involved in quality control, packaging, paper testing, and related industries. According to ASTM D4918, this method defines how to determine the static coefficient of friction of paper and paperboard materials using an inclined plane. This test is particularly relevant for [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-561","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Static friction test based on ASTM D4918 - Coefficient of Friction Tester<\/title>\n<meta name=\"description\" content=\"Learn how to static friction test according to ASTM D4918. 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