Njira Yodulira Mafilimu Oteteza Magalasi

Munjira yodula ufa,filimu yoteteza magalasi amayenera kudulidwa nthawi imodzi ndi zinthu za nkhope ndi zomatira, koma mwachidziwitso, zida zodulira ngati mapepala ndizotsatira zophatikizika za zida zodulira ndi kuphwanya mphamvu ya pepala, ndiko kuti, mpeni wopita pansi udzafinyanso pepala. , motero, kunena momveka bwino, kulondola kwakufa kwa zinthu zonga mapepala sikuli kwakukulu. Kusanthula kwachitsanzo nthawi zambiri kumapezeka pamalemba ena kumakhala ndi ma burrs, zomwe zimachitika chifukwa cha ulusi wazinthu zowoneka bwino, komanso kapangidwe kazinthu zomwe zimachitika chifukwa cha kusweka kwachilengedwe.

Mafilimu oteteza galasi zachokera kufa-kudula makhalidwe a zipangizo pepala ofotokoza, ndi kuganizira kuvala ndi kung'ambika mpeni mpeni, Pe zoteteza filimu opanga lathyathyathya kufa-kudula mpeni mbali ya 52 °, poganiza kuti ngodya ndi yaikulu, extrusion. mapindikidwe a zinthu zofunika kwambiri, ndiko kuti, yopingasa malangizo a dera chigawo mphamvu adzapanga zinthu fracture kusiyana chodabwitsa kwambiri. Monga momwe zinthu zambiri zamtundu wa filimu zimakhala zolimba ndipo sizidzathyoka mwachibadwa, kudula pakati pa magawo awiri pa atatu sikoyenera kudula kapena kudula makulidwe a magawo anayi pachisanu kuti adule; apo ayi, mzere wa zinyalala udzasendedwa pamodzi ndi chizindikirocho.

Galasi zoteteza filimu pamwamba zakuthupi mphamvu ndi pamwamba zinthu makulidwe, CHIKWANGWANI (macromolecule) dongosolo, ndi chinyezi. Mu njira yodula kufa ya PET zoteteza filimu zinthu, chinthu chachikulu chogwirizana ndi zinthu pamwamba ndi liwiro slagging. Kuchuluka kwa chinyezi cha zinthu, opanga filimu yoteteza PE pambuyo pa chinyezi, mphamvu imachepa, imakoka mwachisawawa, ndipo ngakhale sangathe kutulutsidwa.

Mafilimu oteteza galasi amagwiritsa ntchito makulidwe ake a nkhope. Kuchuluka kwa zinthu kudzakhudza mwachindunji kuya kwa kudula kufa; kukhuthala kwa zinthu zake, m'pamenenso kumadula kwambiri. Chifukwa chochulukirachulukira chazinthucho, ndizomwe zimakwera kulondola kwakufa-kudula, kumachepetsa mwayi wodula pamapepala oyambira. Kuchepa kwa zinthu, m'pamenenso kudulidwa kwachilema kumakhala kosavuta. Kusiyanitsa pakati pa zinthu za nkhope ndi pepala loyambira; Mwachitsanzo, akhoza kukhala 80g/m2 ndi 60g/m2, mogwirizana ndi tebulo lathyathyathya kuthamanga chizindikiro kufa-kudula makina. Kafukufukuyu adapeza kuti 80g/m2 zinyalala zodula ndi zachilendo; kusinthira ku 60g/m2 zakuthupi, kudula kufa nthawi zambiri kumayambitsa kuwonongeka kwa zinyalala, mapepala oyambira amadulidwa, kutayika kwa zilembo, ndi zochitika zina, zomwe zimafuna kuyimitsidwa pafupipafupi ndi mbale yapad.