Mpanda wa PVC umapangidwa ndi makina awiri opangira ma screw extrusion.
PVC extrusion ndi liwilo kupanga ndondomeko imene yaiwisi pulasitiki ndi kusungunuka ndi kupangidwa kukhala mosalekeza yaitali mbiri.Extrusion umapanga zinthu monga mbiri pulasitiki, mapaipi pulasitiki, PVC sitima sitima njanji, PVC zenera mafelemu, mafilimu pulasitiki, sheeting, mawaya, ndi mbiri PVC mpanda, chimagwiritsidwa ntchito m'madera ambiri.
Njira yowonjezerayi imayamba ndikudyetsa PVC pawiri kuchokera ku hopper kupita ku mbiya ya extruder.Pawiri pang'onopang'ono kusungunuka ndi mphamvu mawotchi kwaiye ndi kutembenuza zomangira ndi heaters anakonza pamodzi mbiya.Polima wosungunuka ndiye amakakamizika kukhala mukufa, kapena kutchedwa extrusion moulds, yomwe imapanga PVC compound kukhala mawonekedwe enaake, monga mpanda wa mpanda, njanji ya mpanda, kapena mapepala a mpanda omwe amauma panthawi yozizirira.
Mu extrusion wa PVC, yaiwisi pawiri zakuthupi zambiri mu mawonekedwe a ufa kuti ndi yokoka kudyetsedwa kuchokera pamwamba wokwera hopper mu mbiya ya extruder.Zowonjezera monga pigment, UV inhibitors ndi PVC stabilizer zimagwiritsidwa ntchito nthawi zambiri ndipo zimatha kusakanizidwa ndi utomoni musanafike pa hopper.Choncho, ponena za kupanga mpanda wa PVC, timalangiza makasitomala athu kuti azikhala ndi mtundu umodzi wokha mu dongosolo limodzi, kapena kuti mtengo wosintha nkhungu za extrusion ukanakhala wapamwamba.Komabe, ngati makasitomala akuyenera kukhala ndi mbiri yamitundu mu dongosolo limodzi, zambiri zitha kukambidwa.
Njirayi imakhala yofanana kwambiri ndi kuumba kwa jekeseni wa pulasitiki kuchokera ku teknoloji ya extruder, ngakhale kuti imasiyana chifukwa nthawi zambiri imakhala yopitilira.Ngakhale kuti pultrusion imatha kupereka mbiri yofananira mopitilira, nthawi zambiri ndikuwonjezera kulimbikitsa, izi zimatheka pokoka chinthu chomalizidwa mu nkhungu m'malo motulutsa polima kusungunuka kudzera mu nkhungu.Mwanjira ina, kutalika kwa mbiri ya mpanda, monga nsanamira, njanji, ndi ma pickets, onse amatha kusinthidwa mosiyanasiyana.Mwachitsanzo, mpanda wachinsinsi ukhoza kukhala 6ft kutalika ndi 8 ft mulifupi, ukhozanso kukhala 6ft kutalika ndi 6 ft mulifupi.Makasitomala athu ena, amagula zida zopangira mpanda, kenako amadula kutalika kwake m'mashopu awo, ndikupanga mipanda yosiyana kuti akwaniritse zosowa za makasitomala awo.
Chifukwa chake, timagwiritsa ntchito ukadaulo wa mono extrusion kupanga nsanamira za mpanda wa PVC, njanji ndi ma pickets, ndikugwiritsa ntchito ukadaulo wa jekeseni ndi makina kuti apange zipewa, zolumikizira, ndi ma picket.Zirizonse zomwe zida zimapangidwa ndi makina otulutsa kapena jakisoni, mainjiniya athu aziwongolera mitundu kuti ikhale yololera kuyambira kuthamanga mpaka kuthamanga.Timagwira ntchito m'makampani amipanda, timadziwa zomwe makasitomala amasamala, kuwathandiza kukula, ndiye FenceMaster's Mission ndi mtengo wake.
Nthawi yotumiza: Nov-18-2022