ntchito

Thermoplastics ambiri akhoza kuwomberedwa filimu kupanga ndi nkhonya akamaumba, kuwomba akamaumba pulasitiki filimu ndi kufinya mu chubu woonda, ndiye kumenya ndi wothinikizidwa mpweya kuwomba pulasitiki chotuluka, pambuyo kuzirala kutsirizitsa kamangidwe ka tubular nembanemba mankhwala, mtundu uwu wa ntchito filimu pakati. filimu yowongoka ndi filimu yotambasula: mphamvu ndi yabwino kuposa filimu yotambasula, kusindikiza kutentha kumakhala koipitsitsa kuposa filimu yotambasula.

Pali mitundu yambiri ya filimu yomwe imapangidwa ndi njira yowotchera, mongalow density polyethylene (LDPE), liniya polyethylene (LLDPE), polypropylene (PP), mkulu kachulukidwe polyethylene (HDPE), nayiloni (PA), ethylene ethylene acetate copolymer (EVA), etc. .

1. The anasankha zopangira ayenera kuwomberedwa filimu kalasi polyethylene utomoni particles, munali mlingo woyenera wa kusalaza wothandizila kuonetsetsa kutsegula kwa filimuyo.

2 resin particle kusungunuka index (MI) sangakhale lalikulu kwambiri, kusungunuka index (MI) ndi lalikulu kwambiri, mamasukidwe akayendedwe a utomoni wosungunuka ndi ochepa kwambiri, osiyanasiyana processing ndi yopapatiza, processing zinthu zovuta kulamulira, utomoni filimu osauka, sikophweka kupanga filimu;Kuphatikiza apo, melting index (MI) ndi yayikulu kwambiri, kuchuluka kwa kulemera kwa ma polima ndikocheperako, ndipo mphamvu ya filimuyo ndi yocheperako.Choncho, ayenera kusankha Sungunulani index (MI) ndi yaing'ono, ndi wachibale maselo kulemera kugawa lonse utomoni zopangira, kuti akwaniritse zofuna za filimuyo, komanso kuonetsetsa processing makhalidwe a utomoni.Kuwomba akamaumba polyethylene filimu zambiri ntchito kusungunuka index (MI) pakati 2 ndi 6g/10min polyethylene zopangira.

Njira yopangira filimuyi imakhala motere:

Hopper pokweza zinthu plasticizing extrusion → kuwomba traction → mpweya mphete kuzirala → herringlet splint → traction roll traction → corona chithandizo → filimu yokhotakhota