Nkhani

Kuti mutchule wononga imodzi yolowa m'malo, tumizani magulu anayi azidziwitso: makina ndi mawonekedwe, mbiri yoyang'aniridwa, zinthu zomwe zakonzedwa ndi ntchito yogwirira ntchito, komanso zofunikira zovomerezeka zovomerezeka. Zitsanzo zowonongeka zimathandiza, koma ndi umboni wa mapangidwe oyambirira ndi kuwonongeka kotsatira. Fakitale iyenera kusiyanitsa pakati pa ziwirizo musanavomereze kujambula.

Njira yopangira screw ndi mbiya nthawi zambiri imaphatikizanso kuwunika kwa ntchito, kusankha kwazinthu ndi mawonekedwe apamwamba, kukonzekera kopanda kanthu, makina okhwima ndi omaliza, kutenthetsa kapena kulimba, kumaliza mwatsatanetsatane, kuyang'ana mozama komanso kutetezedwa. Dongosolo silofala konsekonse. Iyenera kukonzedwa mozungulira geometry, chithandizo ndi miyeso yomaliza ya gawolo.

Parallel twin screw extruder ili ndi zomangira ziwiri zopindika m'mimba mwake zomwe zimapangidwa kuchokera kuzinthu zofananira. Ambiri ndi co-azungulira, kuthamanga pa liwiro la kwambiri kusanganikirana kwambiri - amene amawapanga muyezo makina kwa compounding, masterbatch, WPC ndi pelletizing. Mosiyana ndi makina a conical, mawonekedwe a screw amatha kumangidwanso pakupanga kwatsopano.

Chitsulo chimodzi chomata ndi chomangira chomwe chimazungulira mkati mwa mbiya yotenthedwa, kunyamula, kusungunula ndi kupopa pulasitiki kudzera mukufa. Kuchita kumakhazikitsidwa makamaka ndi zinthu zitatu: chiŵerengero cha L / D, chiŵerengero cha kuponderezana ndi mtundu wa screw (muyezo, chotchinga kapena kusakaniza). Ndilo kusankha kwachuma kwambiri pakutulutsa kwazinthu zofananirako - kuwomba filimu, chitoliro kuchokera ku pellets, pepala ndi granulation.

Zomangira ziwiri zomangira zimagwiritsa ntchito zomangira ziwiri mkati mwa mbiya yobowola mapasa kudyetsa, kusungunula, kusakaniza ndi kupopa pulasitiki kudzera mukufa. Mabanja awiri akuluakulu ndi a conical (zomangira tapered, zabwino kwambiri kwa PVC chitoliro, mbiri ndi bolodi extrusion) ndi kufanana (nthawi zonse m'mimba mwake, zomangira segmented, yabwino kwa compating, granulation ndi mkulu-filler kusanganikirana).

Zomangira ziwiri zomangirana zimakhala ndi zomangira ziwiri zolumikizirana zomangirirana motsatana mumigolo yofananira. Mosiyana ndi mbiya ya conical, zomangira zimakhala zofanana kumapeto mpaka kumapeto, ndipo mbiyayo nthawi zambiri imamangidwa kuchokera kumagulu. Zomangira zozungulira zofanana zomangira, granulation ndi masterbatch; zomangira zozungulira zozungulira zofananira zimagwirizana ndi PVC ndi ntchito yodzaza kwambiri.