{"id":985,"date":"2026-07-01T07:47:09","date_gmt":"2026-07-01T07:47:09","guid":{"rendered":"https:\/\/www.teartester.com\/?post_type=product&p=985"},"modified":"2026-07-01T08:08:17","modified_gmt":"2026-07-01T08:08:17","slug":"elmendorf-tear-tester","status":"publish","type":"product","link":"https:\/\/www.teartester.com\/cs\/product\/elmendorf-tear-tester\/","title":{"rendered":"SLD-01 Elmendorf\u016fv trhac\u00ed tester"},"content":{"rendered":"

Na str\u00e1nk\u00e1ch zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed Elmendorf pro m\u011b\u0159en\u00ed odolnosti proti roztr\u017een\u00ed<\/strong> je specializovan\u00fd p\u0159\u00edstroj slou\u017e\u00edc\u00ed k m\u011b\u0159en\u00ed s\u00edly pot\u0159ebn\u00e9 k roz\u0161\u00ed\u0159en\u00ed ji\u017e vznikl\u00e9ho trhlinov\u00e9ho defektu v materi\u00e1lech, jako jsou plastov\u00e9 f\u00f3lie, pap\u00edr, lepenka, textilie, netkan\u00e9 textilie a pru\u017en\u00e9 obalov\u00e9 materi\u00e1ly. Na z\u00e1klad\u011b kvantifikace odolnosti materi\u00e1lu proti roztr\u017een\u00ed mohou v\u00fdrobci posoudit trvanlivost v\u00fdrobku, st\u00e1lost kvality a vhodnost pro kone\u010dn\u00e9 pou\u017eit\u00ed.<\/p>\n\n\n\n

V odv\u011btv\u00edch, kde je rozhoduj\u00edc\u00ed neporu\u0161enost obalu a vlastnosti materi\u00e1lu, je spolehliv\u00fd zkou\u0161ka odolnosti proti roztr\u017een\u00ed<\/strong> pom\u00e1h\u00e1 in\u017een\u00fdr\u016fm pochopit, jak se materi\u00e1l chov\u00e1 p\u0159i n\u00e1hodn\u00e9m pro\u0159\u00edznut\u00ed, prop\u00edchnut\u00ed nebo mechanick\u00e9m nam\u00e1h\u00e1n\u00ed. Elmendorfova metoda se stala jednou z nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch technik pro stanoven\u00ed odolnosti proti roztr\u017een\u00ed a odkazuje na ni \u0159ada mezin\u00e1rodn\u00edch norem, v\u010detn\u011b ASTM D1922<\/strong>, ASTM D689<\/strong>, ASTM D1424<\/strong>, ISO 6383-2<\/strong>, ISO 1974<\/strong>, a ISO 13937-1<\/strong>.<\/p>\n\n\n\n

Co je to Elmendorfova metoda?<\/h2>\n\n\n\n

Na str\u00e1nk\u00e1ch Elmendorfova metoda<\/strong> m\u011b\u0159\u00ed energii pot\u0159ebnou k pokra\u010dov\u00e1n\u00ed trhliny, kter\u00e1 ji\u017e byla ve zku\u0161ebn\u00edm vzorku zapo\u010data. Zkou\u0161ka se prov\u00e1d\u00ed pomoc\u00ed mechanismu s kyvadlem, kter\u00fd vzorek roztrhne na pevn\u011b stanovenou vzd\u00e1lenost.<\/p>\n\n\n\n

Jakmile se kyvadlo uvoln\u00ed, proch\u00e1z\u00ed vzorkem a p\u0159i \u0161\u00ed\u0159en\u00ed trhliny ztr\u00e1c\u00ed energii. Mno\u017estv\u00ed energie absorbovan\u00e9 b\u011bhem procesu trh\u00e1n\u00ed p\u0159\u00edmo souvis\u00ed s odolnost\u00ed materi\u00e1lu proti trh\u00e1n\u00ed.<\/p>\n\n\n\n

Na rozd\u00edl od zkou\u0161ky tahem, p\u0159i kter\u00e9 se m\u011b\u0159\u00ed s\u00edla p\u0159i protahov\u00e1n\u00ed, se zkou\u0161ka podle Elmendorfa zam\u011b\u0159uje konkr\u00e9tn\u011b na chov\u00e1n\u00ed p\u0159i \u0161\u00ed\u0159en\u00ed trhliny, co\u017e ji \u010din\u00ed obzvl\u00e1\u0161t\u011b u\u017eite\u010dnou pro obalov\u00e9 materi\u00e1ly a plo\u0161n\u00e9 materi\u00e1ly.<\/p>\n\n\n\n

Hlavn\u00ed v\u00fdhody Elmendorfovy metody<\/h3>\n\n\n\n
    \n
  • Rychl\u00fd a standardizovan\u00fd postup testov\u00e1n\u00ed<\/li>\n\n\n\n
  • Vynikaj\u00edc\u00ed opakovatelnost a reprodukovatelnost<\/li>\n\n\n\n
  • Vhodn\u00e9 pro \u0161irokou \u0161k\u00e1lu pru\u017en\u00fdch materi\u00e1l\u016f<\/li>\n\n\n\n
  • \u0160iroce uzn\u00e1van\u00e9 podle mezin\u00e1rodn\u00edch norem<\/li>\n\n\n\n
  • Ide\u00e1ln\u00ed pro kontrolu kvality a v\u00fdvoj v\u00fdrobk\u016f<\/li>\n<\/ul>\n\n\n\n

    Pro\u010d je odolnost proti roztr\u017een\u00ed d\u016fle\u017eit\u00e1?<\/h2>\n\n\n\n

    Materi\u00e1l m\u016f\u017ee vykazovat vynikaj\u00edc\u00ed pevnost v tahu, ale p\u0159esto m\u016f\u017ee p\u0159ed\u010dasn\u011b selhat, je-li vystaven lok\u00e1ln\u00edmu po\u0161kozen\u00ed. Mal\u00fd z\u00e1\u0159ez, \u0159ez nebo prop\u00edchnut\u00ed se m\u016f\u017ee rychle prom\u011bnit v katastrof\u00e1ln\u00ed roztr\u017een\u00ed, pokud materi\u00e1l nem\u00e1 dostate\u010dnou odolnost proti roztr\u017een\u00ed.<\/p>\n\n\n\n

    M\u011b\u0159en\u00ed pevnost plastov\u00e9 f\u00f3lie v roztr\u017een\u00ed<\/strong>, pap\u00edr a textilie pom\u00e1haj\u00ed v\u00fdrobc\u016fm:<\/p>\n\n\n\n

      \n
    • Zv\u00fd\u0161it odolnost obalu<\/li>\n\n\n\n
    • Sn\u00ed\u017eit \u0161kody vznikl\u00e9 p\u0159i p\u0159eprav\u011b<\/li>\n\n\n\n
    • Optimalizovat v\u00fdb\u011br materi\u00e1lu<\/li>\n\n\n\n
    • Porovnejte slo\u017een\u00ed produkt\u016f<\/li>\n\n\n\n
    • Ov\u011b\u0159it soulad se specifikacemi z\u00e1kazn\u00edka<\/li>\n\n\n\n
    • Zaji\u0161\u0165ovat konzistentnost v\u00fdroby<\/li>\n<\/ul>\n\n\n\n

      U flexibiln\u00edch obal\u016f \u010dasto pr\u00e1v\u011b odolnost proti roztr\u017een\u00ed rozhoduje o tom, zda obal vydr\u017e\u00ed manipulaci, p\u0159epravu a pou\u017e\u00edv\u00e1n\u00ed spot\u0159ebitelem.<\/p>\n\n\n\n

      Vyu\u017eit\u00ed zkou\u0161ky odolnosti proti roztr\u017een\u00ed podle Elmendorfa<\/h2>\n\n\n\n

      Flexibiln\u00ed obaly<\/h3>\n\n\n\n

      In\u017een\u00fd\u0159i zab\u00fdvaj\u00edc\u00ed se balen\u00edm \u010dasto prov\u00e1d\u011bj\u00ed zkou\u0161ky odolnosti proti roztr\u017een\u00ed u:<\/p>\n\n\n\n

        \n
      • Polyethylenov\u00e9 (PE) f\u00f3lie<\/li>\n\n\n\n
      • Polypropylenov\u00e9 (PP) f\u00f3lie<\/li>\n\n\n\n
      • PET f\u00f3lie<\/li>\n\n\n\n
      • Laminovan\u00e9 obalov\u00e9 f\u00f3lie<\/li>\n\n\n\n
      • Bari\u00e9rov\u00e9 f\u00f3lie<\/li>\n\n\n\n
      • Materi\u00e1ly pro v\u00fdrobu retortov\u00fdch s\u00e1\u010dk\u016f<\/li>\n\n\n\n
      • Smr\u0161titeln\u00e9 f\u00f3lie<\/li>\n\n\n\n
      • Stre\u010dov\u00e9 f\u00f3lie<\/li>\n<\/ul>\n\n\n\n

        Testov\u00e1n\u00ed pevnost plastov\u00e9 f\u00f3lie v roztr\u017een\u00ed<\/strong> pom\u00e1h\u00e1 ur\u010dit odolnost proti po\u0161kozen\u00ed b\u011bhem pln\u011bn\u00ed, uzav\u00edr\u00e1n\u00ed, p\u0159epravy a skladov\u00e1n\u00ed.<\/p>\n\n\n\n

        Pap\u00edr a lepenka<\/h3>\n\n\n\n

        Na str\u00e1nk\u00e1ch zkou\u0161ka odolnosti pap\u00edru proti roztr\u017een\u00ed<\/strong> se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 k:<\/p>\n\n\n\n

          \n
        • Tiskov\u00fd pap\u00edr<\/li>\n\n\n\n
        • Balic\u00ed pap\u00edr<\/li>\n\n\n\n
        • Kraftov\u00fd pap\u00edr<\/li>\n\n\n\n
        • Pap\u00edrov\u00e9 v\u00fdrobky<\/li>\n\n\n\n
        • Vlnit\u00e1 lepenka<\/li>\n\n\n\n
        • Speci\u00e1ln\u00ed druhy pap\u00edru<\/li>\n<\/ul>\n\n\n\n

          Odolnost proti roztr\u017een\u00ed je d\u016fle\u017eit\u00fdm ukazatelem kvality spojen\u00ed vl\u00e1ken a trvanlivosti pap\u00edru.<\/p>\n\n\n\n

          Textilie a netkan\u00e9 textilie<\/h3>\n\n\n\n

          Elmendorfova metoda se \u0161iroce pou\u017e\u00edv\u00e1 k hodnocen\u00ed:<\/p>\n\n\n\n

            \n
          • Tkaniny<\/li>\n\n\n\n
          • Netkan\u00e9 textilie<\/li>\n\n\n\n
          • Pr\u016fmyslov\u00e9 textilie<\/li>\n\n\n\n
          • Materi\u00e1ly pro ochrann\u00e9 od\u011bvy<\/li>\n\n\n\n
          • L\u00e1tky pro zdravotnictv\u00ed<\/li>\n\n\n\n
          • Geotextilie<\/li>\n<\/ul>\n\n\n\n

            M\u011b\u0159en\u00ed pevnost tkaniny v trh\u00e1n\u00ed<\/strong> pom\u00e1h\u00e1 zajistit odpov\u00eddaj\u00edc\u00ed v\u00fdkon v n\u00e1ro\u010dn\u00fdch aplikac\u00edch.<\/p>\n\n\n\n

            Jak funguje p\u0159\u00edstroj pro zkou\u0161ku odolnosti proti roztr\u017een\u00ed podle Elmendorfa?<\/h2>\n\n\n\n

            P\u0159\u00edstroj pro zkou\u0161en\u00ed odolnosti proti roztr\u017een\u00ed podle Elmendorfa vyu\u017e\u00edv\u00e1 kalibrovan\u00e9 kyvadlo k ur\u010den\u00ed energie absorbovan\u00e9 b\u011bhem \u0161\u00ed\u0159en\u00ed trhliny.<\/p>\n\n\n\n

            Z\u00e1kladn\u00ed postup zkou\u0161ky<\/h3>\n\n\n\n
              \n
            1. P\u0159ipravte zku\u0161ebn\u00ed vzorky v souladu s p\u0159\u00edslu\u0161nou normou.<\/li>\n\n\n\n
            2. Vytvo\u0159te standardizovan\u00fd p\u0159edem vy\u0159\u00edznut\u00fd z\u00e1\u0159ez.<\/li>\n\n\n\n
            3. Upevn\u011bte vzorek do svorek p\u0159\u00edstroje.<\/li>\n\n\n\n
            4. Vyberte vhodnou nosnost kyvadla.<\/li>\n\n\n\n
            5. Automaticky uvoln\u011bte kyvadlo.<\/li>\n\n\n\n
            6. Kyvadlo \u0161\u00ed\u0159\u00ed trhlinu na stanovenou vzd\u00e1lenost.<\/li>\n\n\n\n
            7. Tento p\u0159\u00edstroj vypo\u010d\u00edt\u00e1v\u00e1 a zobrazuje odolnost proti roztr\u017een\u00ed.<\/li>\n<\/ol>\n\n\n\n

              V\u00fdsledn\u00e1 hodnota p\u0159edstavuje pr\u016fm\u011brnou s\u00edlu nebo energii pot\u0159ebnou k pokra\u010dov\u00e1n\u00ed trh\u00e1n\u00ed za kontrolovan\u00fdch podm\u00ednek.<\/p>\n\n\n\n

              Normy, na kter\u00e9 se vztahuje zkou\u0161ka odolnosti proti roztr\u017een\u00ed podle Elmendorfa<\/h2>\n\n\n\n

              R\u016fzn\u00e1 odv\u011btv\u00ed pou\u017e\u00edvaj\u00ed specifick\u00e9 normy v z\u00e1vislosti na druhu materi\u00e1lu.<\/p>\n\n\n\n

              Standardn\u00ed<\/th>Typ materi\u00e1lu<\/th>\u00da\u010del testu<\/th><\/tr><\/thead>
              ASTM D1922<\/td>Plastov\u00e9 f\u00f3lie a plachty<\/td>Odolnost proti \u0161\u00ed\u0159en\u00ed trhlin<\/td><\/tr>
              ASTM D689<\/td>Pap\u00edr a lepenka<\/td>Odolnost proti vnit\u0159n\u00edmu roztr\u017een\u00ed<\/td><\/tr>
              ASTM D1424<\/td>Textiln\u00ed tkaniny<\/td>Pevnost tkaniny v trh\u00e1n\u00ed<\/td><\/tr>
              ISO 6383-2<\/td>Plastov\u00e9 f\u00f3lie a desky<\/td>Odolnost proti roztr\u017een\u00ed podle Elmendorfa<\/td><\/tr>
              ISO 1974<\/td>Pap\u00edr<\/td>Stanoven\u00ed odolnosti proti roztr\u017een\u00ed<\/td><\/tr>
              ISO 13937-1<\/td>Textiln\u00ed tkaniny<\/td>Zkou\u0161ka pevnosti v trh\u00e1n\u00ed metodou balistick\u00e9ho kyvadla<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

              Tyto normy stanovuj\u00ed jednotn\u00e9 postupy, kter\u00e9 umo\u017e\u0148uj\u00ed spolehliv\u00e9 srovn\u00e1n\u00ed mezi jednotliv\u00fdmi laborato\u0159emi a v\u00fdrobn\u00edmi z\u00e1vody.<\/p>\n\n\n\n

              SLD-01 Elmendorf\u016fv trhac\u00ed tester<\/h2>\n\n\n\n

              Na str\u00e1nk\u00e1ch SLD-01 Elmendorf\u016fv trhac\u00ed tester<\/strong> P\u0159\u00edstroj od spole\u010dnosti Cell Instruments je navr\u017een tak, aby poskytoval p\u0159esn\u00e1 a opakovateln\u00e1 m\u011b\u0159en\u00ed odolnosti proti roztr\u017een\u00ed u obalov\u00fdch materi\u00e1l\u016f, pap\u00edrov\u00fdch v\u00fdrobk\u016f, textili\u00ed a pr\u016fmyslov\u00fdch plo\u0161n\u00fdch materi\u00e1l\u016f.<\/p>\n\n\n\n

              Technick\u00e9 vlastnosti<\/h3>\n\n\n\n

              \u0158\u00edzen\u00ed pomoc\u00ed PLC s dotykov\u00fdm rozhran\u00edm<\/h4>\n\n\n\n

              Architektura PLC v pr\u016fmyslov\u00e9 kvalit\u011b zaji\u0161\u0165uje spolehliv\u00fd provoz, zat\u00edmco dotykov\u00fd displej HMI zjednodu\u0161uje nastaven\u00ed parametr\u016f, prov\u00e1d\u011bn\u00ed test\u016f a kontrolu v\u00fdsledk\u016f.<\/p>\n\n\n\n

              Pneumatick\u00e9 up\u00edn\u00e1n\u00ed vzork\u016f<\/h4>\n\n\n\n

              Rovnom\u011brn\u00fd pneumatick\u00fd up\u00ednac\u00ed tlak minimalizuje vliv obsluhy a zvy\u0161uje opakovatelnost v\u00fdsledk\u016f p\u0159i v\u00edce zkou\u0161k\u00e1ch.<\/p>\n\n\n\n

              Automatick\u00e9 uvoln\u011bn\u00ed kyvadla<\/h4>\n\n\n\n

              Automatick\u00e9 spu\u0161t\u011bn\u00ed zaji\u0161\u0165uje konzistentn\u00ed zah\u00e1jen\u00ed testu a eliminuje odchylky spojen\u00e9 s ru\u010dn\u00edm ovl\u00e1d\u00e1n\u00edm.<\/p>\n\n\n\n

              Integrovan\u00e1 kontrola kalibrace<\/h4>\n\n\n\n

              Integrovan\u00e9 kalibra\u010dn\u00ed z\u00e1va\u017e\u00ed umo\u017e\u0148uj\u00ed rychlou kontrolu n\u011bkolika rozsah\u016f s\u00edly a pom\u00e1haj\u00ed udr\u017eovat p\u0159esnost m\u011b\u0159en\u00ed.<\/p>\n\n\n\n

              Spr\u00e1va dat a pod\u00e1v\u00e1n\u00ed zpr\u00e1v<\/h4>\n\n\n\n

              Mezi dostupn\u00e9 mo\u017enosti pat\u0159\u00ed:<\/p>\n\n\n\n

                \n
              • Mikrotisk\u00e1rna pro okam\u017eitou dokumentaci v\u00fdsledk\u016f<\/li>\n\n\n\n
              • Komunika\u010dn\u00ed rozhran\u00ed RS-232<\/li>\n\n\n\n
              • Profesion\u00e1ln\u00ed software pro pokro\u010dilou anal\u00fdzu<\/li>\n\n\n\n
              • Mo\u017enost exportu dat<\/li>\n\n\n\n
              • Zpracov\u00e1n\u00ed statistick\u00fdch v\u00fdsledk\u016f<\/li>\n<\/ul>\n\n\n\n

                Funkce v pap\u00edrensk\u00e9m pr\u016fmyslu<\/h4>\n\n\n\n

                Voliteln\u00e1 funkce vytv\u00e1\u0159en\u00ed p\u0159ehled\u016f specifick\u00fdch pro jednotliv\u00e9 druhy pap\u00edru podporuje:<\/p>\n\n\n\n

                  \n
                • jednotky m\u011b\u0159en\u00ed mN<\/li>\n\n\n\n
                • V\u00fdpo\u010dty indexu slz<\/li>\n\n\n\n
                • Po\u017eadavky na zkou\u0161en\u00ed pap\u00edru a buni\u010diny<\/li>\n<\/ul>\n\n\n\n

                  Technick\u00e9 specifikace<\/h2>\n\n\n\n
                  Parametr<\/th>Specifikace<\/th><\/tr><\/thead>
                  Kapacity kyvadel<\/td>200, 400, 800, 1600, 3200, 6400 gf<\/td><\/tr>
                  Zdroj plynu<\/td>0,6 MPa<\/td><\/tr>
                  D\u00e9lka trhac\u00edho ramene<\/td>104 \u00b1 1 mm<\/td><\/tr>
                  Po\u010d\u00e1te\u010dn\u00ed \u00fahel kyvadla<\/td>27,5 \u00b1 0,5\u00b0<\/td><\/tr>
                  Nap\u00e1jen\u00ed<\/td>110\u2013220 V st\u0159\u00eddav\u00e9ho proudu, 50\/60 Hz<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                  V\u00fdb\u011br spr\u00e1vn\u00e9ho p\u0159\u00edstroje pro zkou\u0161ku odolnosti proti roztr\u017een\u00ed podle Elmendorfa<\/h2>\n\n\n\n

                  P\u0159i v\u00fdb\u011bru zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed Elmendorf pro m\u011b\u0159en\u00ed odolnosti proti roztr\u017een\u00ed<\/strong>, zohledn\u011bte n\u00e1sleduj\u00edc\u00ed faktory:<\/p>\n\n\n\n

                    \n
                  • Platn\u00e9 zku\u0161ebn\u00ed normy<\/li>\n\n\n\n
                  • Typ materi\u00e1lu a rozsah tlou\u0161\u0165ky<\/li>\n\n\n\n
                  • Po\u017eadovan\u00e1 kapacita sil<\/li>\n\n\n\n
                  • Po\u017eadavky na spr\u00e1vu dat<\/li>\n\n\n\n
                  • Mo\u017enosti kalibrace<\/li>\n\n\n\n
                  • \u00darove\u0148 automatizace<\/li>\n\n\n\n
                  • Po\u017eadavky na dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f<\/li>\n<\/ul>\n\n\n\n

                    Spr\u00e1vn\u011b nakonfigurovan\u00fd syst\u00e9m zaji\u0161\u0165uje spolehliv\u00e1 m\u011b\u0159en\u00ed u \u0161irok\u00e9 \u0161k\u00e1ly materi\u00e1l\u016f a z\u00e1rove\u0148 podporuje produktivitu laborato\u0159e a pln\u011bn\u00ed c\u00edl\u016f v oblasti zaji\u0161t\u011bn\u00ed kvality.<\/p>","protected":false},"featured_media":737,"parent":0,"template":"","meta":{"_acf_changed":true},"product-category":[38,39,46,56,48,51,53],"class_list":["post-985","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-astm-d1424","product-category-astm-d1922","product-category-astm-d689","product-category-elmendorf-tear-test","product-category-iso-13937-1","product-category-iso-1974","product-category-iso-6383-2"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/product\/985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/media\/737"}],"wp:attachment":[{"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/media?parent=985"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/www.teartester.com\/cs\/wp-json\/wp\/v2\/product-category?post=985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}