Filimu ya Polyethylene (PE) ndi chinthu chochepa thupi, chosinthika chopangidwa kuchokera ku polyethylene polima chomwe chimagwiritsidwa ntchito kwambiri pakuyika, kuteteza, ndi ntchito zina.Njira yopanga filimu ya polyethylene imatha kugawidwa m'magawo angapo:
- Kupanga utomoni: Gawo loyamba popanga ndi kupanga zopangira, zomwe ndi mtundu wa utomoni wa polyethylene.Izi zimachitika kudzera mu polymerization, njira yamankhwala yomwe imapanga unyolo wautali wa mamolekyu a polima kuchokera ku ma monomers monga ethylene.Kenako utomoniwo umaumitsidwa, kuumitsidwa, ndi kuusunga kuti upangidwenso.
- Extrusion: Gawo lotsatira ndikutembenuza utomoni kukhala filimu.Izi zimachitika mwa kudutsa utomoniwo kudzera mu chotuluka, makina osungunula utomoniwo ndi kuukakamiza kudzera pa kabowo kakang'ono kotchedwa kufa.Utomoni wosungunuka umazizira pansi ndipo umalimba pamene ukutuluka, kupanga pepala losalekeza la filimu.
- Kuziziritsa ndi kupiringa: Kanemayo akatulutsidwa, amaziziritsidwa mpaka kutentha komanso kuvulala pampukutu.Firimuyi imatha kutambasulidwa ndikuwongolera panthawiyi, yomwe imapangitsa kuti makina ake aziwoneka bwino komanso kuti akhale ofanana.
- Calendering: Filimuyi imatha kukonzedwanso kudzera munjira yotchedwa calendering, momwe imadutsa pagulu la ma roller otentha kuti pakhale malo osalala komanso onyezimira.
- Lamination: Filimuyi imatha kuphatikizidwa ndi zida zina kuti apange mawonekedwe a laminated.Izi zimachitika nthawi zambiri pogwiritsa ntchito zomatira pakati pa zigawo ziwiri kapena zingapo za filimu, zomwe zimapereka zotchinga bwino komanso zimapangitsa kuti ntchito yomaliza ikhale yabwino.
- Kusindikiza ndi kudula: Chojambula chomaliza cha filimu chikhoza kusindikizidwa ndi mapepala kapena zithunzi zomwe mukufuna, kenako ndikudula mu kukula ndi mawonekedwe omwe mukufuna kuti mugwiritse ntchito.
Magawowa amatha kusiyanasiyana malinga ndi zomwe mukufuna komanso kugwiritsa ntchito komaliza kwa filimu ya polyethylene, koma njira yoyambira imakhala yofanana.
Nthawi yotumiza: Mar-04-2023