{"id":2253,"date":"2023-05-17T15:22:07","date_gmt":"2023-05-17T07:22:07","guid":{"rendered":"https:\/\/www.qualitester.com\/?p=2253"},"modified":"2023-11-27T09:55:37","modified_gmt":"2023-11-27T01:55:37","slug":"pet-bottle-mineral-water-beverage-bottle-and-bottle-cap","status":"publish","type":"post","link":"https:\/\/www.qualitester.com\/sl\/pet-bottle-mineral-water-beverage-bottle-and-bottle-cap\/","title":{"rendered":"Testiranje kakovosti steklenic in pokrov\u010dkov iz PET - iz\u010drpen vodnik"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2253\" class=\"elementor elementor-2253\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9614f3d e-flex e-con-boxed e-con e-parent\" data-id=\"9614f3d\" 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-3453031 elementor-widget elementor-widget-text-editor\" data-id=\"3453031\" 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<p>Steklenica PET se nana\u0161a na plasti\u010dni material, imenovan polietilen tereftalat (polietilen tereftalat) ali na kratko PET, ki je spojina tereftalne kisline in etilen glikola. proizvedenih polimerov. Plastika PET ima zna\u010dilnosti majhne te\u017ee, visoke preglednosti, odpornosti proti udarcem in se ne zlomi zlahka. Prav tako lahko blokira plin ogljikov dioksid in ohranja \u201cplin\u201d sodavice. Steklenice PET so zelo uporabne in se pogosto uporabljajo pri vsakodnevnih potreb\u0161\u010dinah, vsakodnevnem pakiranju kemikalij in na drugih podro\u010djih.<\/p><p>Steklenice iz PET se predelujejo s pihanjem, da se oblikujejo plastenke, vklju\u010dno s plastenkami za kozmetiko, zdravila, zdravstvo, pija\u010de, mineralno vodo, reagente itd. Metoda pihanja za oblikovanje plastenk iz PET.<\/p><p>Preverjanje kakovosti steklenic PET<\/p><p>Rutinsko presku\u0161anje steklenic PET vklju\u010duje presku\u0161anje navpi\u010dnosti, debeline stene steklenice, presku\u0161anje stiskanja, odpiranja pokrov\u010dka, tesnjenja in drugih preskusov.<\/p><p>Testne postavke v tem \u010dlanku temeljijo na standardnem<\/p><p>QB2357-1998 steklenica za negazirano pija\u010do iz poliestra (PET)<\/p><p>GBT17876-2010 Plasti\u010dni pokrov\u010dki proti kraji za embala\u017ene posode<\/p>\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-b617775 e-flex e-con-boxed e-con e-parent\" data-id=\"b617775\" 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-74e2156 elementor-widget elementor-widget-text-editor\" data-id=\"74e2156\" 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<p>Vertikalnost<\/p><p>V skladu z dolo\u010dbami 5.2.4 v QB1868.<\/p><p>U\u010dinkovitost tesnjenja<\/p><p>5 steklenic za vzor\u010denje napolnite z vodo nazivne prostornine in tesno zavrtite (zapnite) pokrov\u010dek. Vzorec postavite vodoravno na ravnino za 8 ur, preden ga preverite.<\/p><p>Navpi\u010dna obremenitev<\/p><p>Postavite pet steklenic za vzor\u010denje na 23 \u00b1 2 \u00b0C za ve\u010d kot 2 uri, izvajajte navpi\u010dni pritisk na steklenice za vzor\u010denje s konstantno hitrostjo 100 mm\/min na preskusni napravi, prvi\u010d zabele\u017eite najve\u010djo obremenitev vsakega vzorca in vzemite aritmeti\u010dno srednjo vrednost.<\/p><p>Uspe\u0161nost padca<\/p><p>5 steklenic za vzor\u010denje napolnite z vodo pri temperaturi 20\u00b15 \u00b0C glede na nazivno prostornino, jih dobro pokrijte in izvedite preskus s padcem na betonska tla. Vi\u0161ina padca je 1,8 m, ustje steklenice je obrnjeno navzgor in prosto pade.<\/p><p>Povzetek preskusnih elementov za pokrov\u010dke steklenic<\/p><p>Preskus u\u010dinkovitosti tesnjenja<\/p><p>Uporabite stroj za zapiranje, da zaprete pokrov\u010dek, ki ni karboniziran, v skladu z nazivnim navorom, ki ustreza zahtevam, in ga preizkusite s testerjem tesnil, pove\u010dajte tlak na 200 kPa, 1 minuto vzdr\u017eujte tlak pod vodo, opazujte, ali prihaja do uhajanja zraka, nato pove\u010dajte tlak na 350 kPa in vzdr\u017eujte tlak 1 minuto, opazujte, ali je pokrov\u010dek steklenice zrahljan in se dvigne.<\/p><p>S strojem za zapiranje zaprite pokrov\u010dek ogljikove kisline v skladu z nazivnim navorom, ki ustreza zahtevam za zapiranje, odre\u017eite obro\u010d proti kraji, testirajte s testerjem tesnil, pove\u010dajte tlak na 690 kPa, 1 minuto vzdr\u017eujte tlak pod vodo, opazujte, ali prihaja do uhajanja zraka, nato pove\u010dajte tlak na 1207 kPa, vzdr\u017eujte tlak 1 minuto in opazujte, ali se pokrov\u010dek steklenice izlu\u0161\u010di.<\/p><p>Uspe\u0161nost padca<\/p><p>Ko v steklenico vbrizgate nazivno koli\u010dino vode, s strojem za zapiranje zatesnite pokrov\u010dek, ki ni karboniziran, v skladu z nazivnim navorom, ki ustreza zahtevam za zapiranje, in preizkusite v skladu z naslednjimi zahtevami, da ugotovite, ali pokrov\u010dek odleti in ali tesnilo pu\u0161\u010da.<\/p><p>Ko steklenico napolnite z gazirano vodo z nazivno prostornino kitajskega 4,2 \u00b1 0,1 volumna ogljikovega dioksida, s strojem za zapiranje zape\u010datite pokrov\u010dek z dolo\u010denim navorom, ki ustreza zahtevam za zapiranje, in preizkusite v skladu z naslednjimi zahtevami, da ugotovite, ali pokrov\u010dek odleti in ali je tesnilo pu\u0161\u010dajo\u010de<\/p>\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-cad3b4a e-flex e-con-boxed e-con e-parent\" data-id=\"cad3b4a\" 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V tem \u010dlanku je predstavljeno presku\u0161anje kakovosti steklenic PET, pri \u010demer so preu\u010deni klju\u010dni dejavniki, kot so navpi\u010dnost, debelina stene, stiskanje, odpiranje pokrov\u010dka in u\u010dinkovitost tesnjenja. Uvod PET ...<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.qualitester.com\/sl\/pet-bottle-mineral-water-beverage-bottle-and-bottle-cap\/\"> <span class=\"screen-reader-text\">Testiranje kakovosti steklenic in pokrov\u010dkov iz PET - iz\u010drpen vodnik<\/span> Preberite ve\u010d \u00bb<\/a><\/p>","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[153,700,1],"tags":[353,352],"class_list":["post-2253","post","type-post","status-publish","format-standard","hentry","category-packaging-news","category-reading-articles","category-test-method","tag-bottle-and-cap","tag-pet-bottle"],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/posts\/2253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/comments?post=2253"}],"version-history":[{"count":0,"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/posts\/2253\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/media?parent=2253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/categories?post=2253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.qualitester.com\/sl\/wp-json\/wp\/v2\/tags?post=2253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}