{"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\/sk\/product\/elmendorf-tear-tester\/","title":{"rendered":"SLD-01 Elmendorfov pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu"},"content":{"rendered":"

Str\u00e1nka pr\u00edstroj na testovanie odolnosti proti roztrhnutiu typu Elmendorf<\/strong> je \u0161pecializovan\u00fd pr\u00edstroj sl\u00fa\u017eiaci na meranie sily potrebnej na roz\u0161\u00edrenie existuj\u00faceho trhl\u00edn v materi\u00e1loch, ako s\u00fa plastov\u00e9 f\u00f3lie, papier, lepenka, text\u00edlie, netkan\u00e9 text\u00edlie a ohybn\u00e9 obalov\u00e9 kon\u0161trukcie. Na z\u00e1klade kvantifik\u00e1cie odolnosti materi\u00e1lu proti roztrhnutiu m\u00f4\u017eu v\u00fdrobcovia pos\u00fadi\u0165 trvanlivos\u0165 v\u00fdrobku, konzistentnos\u0165 kvality a vhodnos\u0165 pre kone\u010dn\u00e9 pou\u017eitie.<\/p>\n\n\n\n

V odvetviach, kde je rozhoduj\u00faca neporu\u0161enos\u0165 obalu a vlastnosti materi\u00e1lu, je spo\u013eahliv\u00fd sk\u00fa\u0161ka odolnosti proti roztrhnutiu<\/strong> pom\u00e1ha in\u017einierom pochopi\u0165, ako sa materi\u00e1l spr\u00e1va, ke\u010f je vystaven\u00fd n\u00e1hodn\u00fdm rezom, prepichnutiam alebo mechanick\u00e9mu nam\u00e1haniu. Elmendorfova met\u00f3da sa stala jednou z naj\u0161ir\u0161ie uzn\u00e1van\u00fdch techn\u00edk na stanovenie odolnosti proti roztrhnutiu a odkazuj\u00fa na \u0148u mnoh\u00e9 medzin\u00e1rodn\u00e9 normy, vr\u00e1tane 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

\u010co je to Elmendorfova met\u00f3da?<\/h2>\n\n\n\n

Str\u00e1nka Elmendorfova met\u00f3da<\/strong> meria energiu potrebn\u00fa na pokra\u010dovanie trhliny, ktor\u00e1 u\u017e bola v sk\u00fa\u0161obnom vzorke iniciovan\u00e1. Sk\u00fa\u0161ka sa vykon\u00e1va pomocou mechanizmu zalo\u017een\u00e9ho na kyvadle, ktor\u00fd vzorku roztrh\u00e1 na pevn\u00fa vzdialenos\u0165.<\/p>\n\n\n\n

Ke\u010f sa kyvadlo uvo\u013en\u00ed, prejde cez vzorku a pri \u0161\u00edren\u00ed trhliny str\u00e1ca energiu. Mno\u017estvo energie absorbovanej po\u010das procesu trhania priamo s\u00favis\u00ed s odolnos\u0165ou materi\u00e1lu proti trhaniu.<\/p>\n\n\n\n

Na rozdiel od sk\u00fa\u0161ky \u0165ahom, pri ktorej sa meria sila p\u00f4sobiaca pri natiahnut\u00ed, sa sk\u00fa\u0161ka pod\u013ea Elmendorfa zameriava konkr\u00e9tne na spr\u00e1vanie pri \u0161\u00edren\u00ed trhl\u00edn, \u010do ju rob\u00ed obzvl\u00e1\u0161\u0165 cennou pre obalov\u00e9 a plo\u0161n\u00e9 materi\u00e1ly.<\/p>\n\n\n\n

Hlavn\u00e9 v\u00fdhody Elmendorfovej met\u00f3dy<\/h3>\n\n\n\n
    \n
  • R\u00fdchly a \u0161tandardizovan\u00fd postup testovania<\/li>\n\n\n\n
  • Vynikaj\u00faca opakovate\u013enos\u0165 a reprodukovate\u013enos\u0165<\/li>\n\n\n\n
  • Vhodn\u00e9 pre \u0161irok\u00fa \u0161k\u00e1lu pru\u017en\u00fdch materi\u00e1lov<\/li>\n\n\n\n
  • \u0160iroko uzn\u00e1van\u00e9 pod\u013ea medzin\u00e1rodn\u00fdch noriem<\/li>\n\n\n\n
  • Ide\u00e1lne pre kontrolu kvality a v\u00fdvoj v\u00fdrobkov<\/li>\n<\/ul>\n\n\n\n

    Pre\u010do je odolnos\u0165 proti roztrhnutiu d\u00f4le\u017eit\u00e1?<\/h2>\n\n\n\n

    Materi\u00e1l m\u00f4\u017ee vykazova\u0165 vynikaj\u00facu pevnos\u0165 v \u0165ahu, ale napriek tomu m\u00f4\u017ee pred\u010dasne zlyha\u0165, ak je vystaven\u00fd lok\u00e1lnemu po\u0161kodeniu. Mal\u00fd z\u00e1rez, rez alebo prepichnutie sa m\u00f4\u017ee r\u00fdchlo premeni\u0165 na katastrof\u00e1lne roztrhnutie, ak materi\u00e1l nem\u00e1 dostato\u010dn\u00fa odolnos\u0165 proti roztrhnutiu.<\/p>\n\n\n\n

    Meranie pevnos\u0165 plastovej f\u00f3lie v roztrhnut\u00ed<\/strong>, papier a text\u00edlie pom\u00e1haj\u00fa v\u00fdrobcom:<\/p>\n\n\n\n

      \n
    • Zv\u00fd\u0161i\u0165 odolnos\u0165 obalu<\/li>\n\n\n\n
    • Zn\u00ed\u017ei\u0165 \u0161kody sp\u00f4soben\u00e9 pri preprave<\/li>\n\n\n\n
    • Optimalizova\u0165 v\u00fdber materi\u00e1lu<\/li>\n\n\n\n
    • Porovnajte zlo\u017eenie produktov<\/li>\n\n\n\n
    • Overi\u0165 s\u00falad so \u0161pecifik\u00e1ciami z\u00e1kazn\u00edka<\/li>\n\n\n\n
    • Zabezpe\u010dte konzistentnos\u0165 v\u00fdroby<\/li>\n<\/ul>\n\n\n\n

      Pri flexibiln\u00fdch obalov\u00fdch materi\u00e1loch \u010dasto pr\u00e1ve odolnos\u0165 proti pretrhnutiu rozhoduje o tom, \u010di obal vydr\u017e\u00ed manipul\u00e1ciu, prepravu a pou\u017e\u00edvanie spotrebite\u013eom.<\/p>\n\n\n\n

      Vyu\u017eitie testu odolnosti proti roztrhnutiu pod\u013ea Elmendorfa<\/h2>\n\n\n\n

      Flexibiln\u00e9 obaly<\/h3>\n\n\n\n

      In\u017einieri v oblasti balenia \u010dasto vykon\u00e1vaj\u00fa sk\u00fa\u0161ky odolnosti proti roztrhnutiu na:<\/p>\n\n\n\n

        \n
      • Polyetyl\u00e9nov\u00e9 (PE) f\u00f3lie<\/li>\n\n\n\n
      • Polypropyl\u00e9nov\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 na v\u00fdrobu retortov\u00fdch vrec\u00fa\u0161ok<\/li>\n\n\n\n
      • Smr\u0161\u0165ovacie f\u00f3lie<\/li>\n\n\n\n
      • Stre\u010dov\u00e9 f\u00f3lie<\/li>\n<\/ul>\n\n\n\n

        Testovanie pevnos\u0165 plastovej f\u00f3lie v roztrhnut\u00ed<\/strong> pom\u00e1ha ur\u010di\u0165 odolnos\u0165 vo\u010di po\u0161kodeniu po\u010das plnenia, uzatv\u00e1rania, prepravy a skladovania.<\/p>\n\n\n\n

        Papier a lepenka<\/h3>\n\n\n\n

        Str\u00e1nka sk\u00fa\u0161ka odolnosti papiera proti roztrhnutiu<\/strong> sa be\u017ene pou\u017e\u00edva na:<\/p>\n\n\n\n

          \n
        • Tla\u010dov\u00fd papier<\/li>\n\n\n\n
        • Baliaci papier<\/li>\n\n\n\n
        • Kraftov\u00fd papier<\/li>\n\n\n\n
        • Papierov\u00e9 v\u00fdrobky<\/li>\n\n\n\n
        • Vlnit\u00e1 lepenka<\/li>\n\n\n\n
        • \u0160peci\u00e1lne druhy papiera<\/li>\n<\/ul>\n\n\n\n

          Odolnos\u0165 proti pretrhnutiu je d\u00f4le\u017eit\u00fdm ukazovate\u013eom kvality spojenia vl\u00e1kien a trvanlivosti papiera.<\/p>\n\n\n\n

          Text\u00edlie a netkan\u00e9 text\u00edlie<\/h3>\n\n\n\n

          Met\u00f3da Elmendorfa sa \u0161iroko pou\u017e\u00edva na hodnotenie:<\/p>\n\n\n\n

            \n
          • Tkaniny<\/li>\n\n\n\n
          • Netkan\u00e9 text\u00edlie<\/li>\n\n\n\n
          • Priemyseln\u00e9 text\u00edlie<\/li>\n\n\n\n
          • Materi\u00e1ly na v\u00fdrobu ochrann\u00e9ho o\u0161atenia<\/li>\n\n\n\n
          • Lek\u00e1rske text\u00edlie<\/li>\n\n\n\n
          • Geotext\u00edlie<\/li>\n<\/ul>\n\n\n\n

            Meranie pevnos\u0165 tkaniny v \u0165ahu<\/strong> prispieva k zabezpe\u010deniu dostato\u010dn\u00e9ho v\u00fdkonu v n\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch.<\/p>\n\n\n\n

            Ako funguje pr\u00edstroj na meranie trhovej pevnosti pod\u013ea Elmendorfa?<\/h2>\n\n\n\n

            Pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu typu Elmendorf vyu\u017e\u00edva kalibrovan\u00e9 kyvadlo na stanovenie energie absorbovanej po\u010das \u0161\u00edrenia trhl\u00edn.<\/p>\n\n\n\n

            Z\u00e1kladn\u00fd postup testovania<\/h3>\n\n\n\n
              \n
            1. Pripravte sk\u00fa\u0161obn\u00e9 vzorky v s\u00falade s pr\u00edslu\u0161nou normou.<\/li>\n\n\n\n
            2. Vytvorte \u0161tandardizovan\u00fd, vopred vyrezan\u00fd z\u00e1rez.<\/li>\n\n\n\n
            3. Upevnite vzorku do svoriek pr\u00edstroja.<\/li>\n\n\n\n
            4. Vyberte vhodn\u00fa nosnos\u0165 kyvadla.<\/li>\n\n\n\n
            5. Kyvadlo sa uvo\u013en\u00ed automaticky.<\/li>\n\n\n\n
            6. Kyvadlo pren\u00e1\u0161a trhlinu na stanoven\u00fa vzdialenos\u0165.<\/li>\n\n\n\n
            7. Pr\u00edstroj vypo\u010d\u00edta a zobraz\u00ed odolnos\u0165 proti roztrhnutiu.<\/li>\n<\/ol>\n\n\n\n

              V\u00fdsledn\u00e1 hodnota predstavuje priemern\u00fa silu alebo energiu potrebn\u00fa na pokra\u010dovanie trhliny za kontrolovan\u00fdch podmienok.<\/p>\n\n\n\n

              Normy, na ktor\u00e9 sa vz\u0165ahuje sk\u00fa\u0161ka odolnosti proti roztrhnutiu pod\u013ea Elmendorfa<\/h2>\n\n\n\n

              V jednotliv\u00fdch odvetviach sa v z\u00e1vislosti od druhu materi\u00e1lu pou\u017e\u00edvaj\u00fa \u0161pecifick\u00e9 normy.<\/p>\n\n\n\n

              \u0160tandard<\/th>Typ materi\u00e1lu<\/th>\u00da\u010del testu<\/th><\/tr><\/thead>
              ASTM D1922<\/td>Plastov\u00e9 f\u00f3lie a plachty<\/td>Odolnos\u0165 proti \u0161\u00edreniu trhl\u00edn<\/td><\/tr>
              ASTM D689<\/td>Papier a lepenka<\/td>Odolnos\u0165 proti vn\u00fatorn\u00e9mu roztrhnutiu<\/td><\/tr>
              ASTM D1424<\/td>Textiln\u00e9 tkaniny<\/td>Pevnos\u0165 tkaniny v \u0165ahu<\/td><\/tr>
              ISO 6383-2<\/td>Plastov\u00e9 f\u00f3lie a dosky<\/td>Odolnos\u0165 vo\u010di pretrhnutiu pod\u013ea Elmendorfa<\/td><\/tr>
              ISO 1974<\/td>Papier<\/td>Stanovenie odolnosti proti roztrhnutiu<\/td><\/tr>
              ISO 13937-1<\/td>Textiln\u00e9 tkaniny<\/td>Vlastnosti pri trhan\u00ed pomocou met\u00f3dy balistick\u00e9ho kyvadla<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

              Tieto normy stanovuj\u00fa jednotn\u00e9 postupy, ktor\u00e9 umo\u017e\u0148uj\u00fa spo\u013eahliv\u00e9 porovn\u00e1vanie medzi laborat\u00f3riami a v\u00fdrobn\u00fdmi zariadeniami.<\/p>\n\n\n\n

              SLD-01 Elmendorfov pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu<\/h2>\n\n\n\n

              Str\u00e1nka SLD-01 Elmendorfov pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu<\/strong> Pr\u00edstroj od spolo\u010dnosti Cell Instruments je navrhnut\u00fd tak, aby poskytoval presn\u00e9 a opakovate\u013en\u00e9 merania odolnosti proti pretrhnutiu u obalov\u00fdch materi\u00e1lov, papierov\u00fdch v\u00fdrobkov, text\u00edli\u00ed a priemyseln\u00fdch plo\u0161n\u00fdch materi\u00e1lov.<\/p>\n\n\n\n

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

              Riadenie pomocou PLC s dotykov\u00fdm rozhran\u00edm<\/h4>\n\n\n\n

              Architekt\u00fara PLC priemyselnej triedy zais\u0165uje spo\u013eahliv\u00fa prev\u00e1dzku, zatia\u013e \u010do dotykov\u00fd displej HMI zjednodu\u0161uje nastavenie parametrov, vykon\u00e1vanie testov a kontrolu v\u00fdsledkov.<\/p>\n\n\n\n

              Pneumatick\u00e9 up\u00ednanie vzoriek<\/h4>\n\n\n\n

              Rovnomern\u00fd pneumatick\u00fd up\u00ednac\u00ed tlak minimalizuje vplyv obsluhy a zvy\u0161uje opakovate\u013enos\u0165 v\u00fdsledkov pri viacer\u00fdch testoch.<\/p>\n\n\n\n

              Automatick\u00e9 uvo\u013enenie kyvadla<\/h4>\n\n\n\n

              Automatick\u00e9 spustenie zaru\u010duje konzistentn\u00e9 za\u010datie testu a eliminuje odch\u00fdlky spojen\u00e9 s ru\u010dn\u00fdm ovl\u00e1dan\u00edm.<\/p>\n\n\n\n

              Vstavan\u00e1 kontrola kalibr\u00e1cie<\/h4>\n\n\n\n

              Integrovan\u00e9 kalibra\u010dn\u00e9 z\u00e1va\u017eia umo\u017e\u0148uj\u00fa r\u00fdchlu kontrolu viacer\u00fdch rozsahov sily a pom\u00e1haj\u00fa udr\u017eiava\u0165 presnos\u0165 merania.<\/p>\n\n\n\n

              Spr\u00e1va \u00fadajov a vykazovanie<\/h4>\n\n\n\n

              Medzi dostupn\u00e9 mo\u017enosti patria:<\/p>\n\n\n\n

                \n
              • Mikrotla\u010diare\u0148 na okam\u017eit\u00fa dokument\u00e1ciu v\u00fdsledkov<\/li>\n\n\n\n
              • Komunika\u010dn\u00e9 rozhranie RS-232<\/li>\n\n\n\n
              • Profesion\u00e1lny softv\u00e9r pre pokro\u010dil\u00fa anal\u00fdzu<\/li>\n\n\n\n
              • Mo\u017enos\u0165 exportu \u00fadajov<\/li>\n\n\n\n
              • Spracovanie \u0161tatistick\u00fdch v\u00fdsledkov<\/li>\n<\/ul>\n\n\n\n

                Funkcie v papierenskom priemysle<\/h4>\n\n\n\n

                Volite\u013en\u00e1 podpora vytv\u00e1rania spr\u00e1v \u0161pecifick\u00fdch pre jednotliv\u00e9 druhy papiera:<\/p>\n\n\n\n

                  \n
                • Jednotky merania mN<\/li>\n\n\n\n
                • V\u00fdpo\u010dty indexu odtrhnutia<\/li>\n\n\n\n
                • Po\u017eiadavky na sk\u00fa\u0161anie papiera a celul\u00f3zy<\/li>\n<\/ul>\n\n\n\n

                  Technick\u00e9 \u0161pecifik\u00e1cie<\/h2>\n\n\n\n
                  Parameter<\/th>\u0160pecifik\u00e1cia<\/th><\/tr><\/thead>
                  Kapacity kyvadiel<\/td>200, 400, 800, 1600, 3200, 6400 gf<\/td><\/tr>
                  Zdroj plynu<\/td>0,6 MPa<\/td><\/tr>
                  D\u013a\u017eka odtrh\u00e1vacieho ramena<\/td>104 \u00b1 1 mm<\/td><\/tr>
                  Po\u010diato\u010dn\u00fd uhol kyvadla<\/td>27,5 \u00b1 0,5\u00b0<\/td><\/tr>
                  Nap\u00e1janie<\/td>110\u2013220 V striedav\u00e9ho pr\u00fadu, 50\/60 Hz<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                  V\u00fdber spr\u00e1vneho pr\u00edstroja na meranie odolnosti proti roztrhnutiu pod\u013ea met\u00f3dy Elmendorfa<\/h2>\n\n\n\n

                  Pri v\u00fdbere pr\u00edstroj na testovanie odolnosti proti roztrhnutiu typu Elmendorf<\/strong>, zoh\u013eadnite nasleduj\u00face faktory:<\/p>\n\n\n\n

                    \n
                  • Platn\u00e9 normy pre sk\u00fa\u0161anie<\/li>\n\n\n\n
                  • Typ materi\u00e1lu a rozsah hr\u00fabok<\/li>\n\n\n\n
                  • Po\u017eadovan\u00e1 kapacita s\u00edl<\/li>\n\n\n\n
                  • Po\u017eiadavky na spr\u00e1vu \u00fadajov<\/li>\n\n\n\n
                  • Mo\u017enosti kalibr\u00e1cie<\/li>\n\n\n\n
                  • \u00darove\u0148 automatiz\u00e1cie<\/li>\n\n\n\n
                  • Po\u017eiadavky na dodr\u017eiavanie pr\u00e1vnych predpisov<\/li>\n<\/ul>\n\n\n\n

                    Spr\u00e1vne nakonfigurovan\u00fd syst\u00e9m zaru\u010duje spo\u013eahliv\u00e9 merania v \u0161irokom spektre materi\u00e1lov a z\u00e1rove\u0148 prispieva k produktivite laborat\u00f3ria a k dosahovaniu cie\u013eov v oblasti zabezpe\u010denia 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\/sk\/wp-json\/wp\/v2\/product\/985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teartester.com\/sk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.teartester.com\/sk\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.teartester.com\/sk\/wp-json\/wp\/v2\/media\/737"}],"wp:attachment":[{"href":"https:\/\/www.teartester.com\/sk\/wp-json\/wp\/v2\/media?parent=985"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/www.teartester.com\/sk\/wp-json\/wp\/v2\/product-category?post=985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}