Mzere wa Co-extrusion wa PVC Wagawo Atatu

1. Chotulutsira chimagwiritsa ntchito mbiya ya screw yomwe siiwonongeka kwambiri; screw ya twin-screw imadya mofanana ndipo ufawo sulumikizana.
2. Kapangidwe kabwino ka PVC yokhala ndi zigawo zitatu, njira yoyendetsera madzi mkati mwake ndi yokutidwa ndi chrome ndipo imapukutidwa bwino, imateteza ku kuwonongeka ndi dzimbiri; yokhala ndi chivundikiro chapadera cha kukula, chinthu cha chitolirocho chili ndi liwiro lapamwamba komanso malo abwino.
3. Makina odulira amagwiritsa ntchito chipangizo chozungulira cholumikizira kuti chigwirizane ndi mainchesi osiyanasiyana a mapaipi, kuchotsa vuto la kusintha zida pafupipafupi. Pokhala ndi mtundu watsopano wa njira yosinthira yoyandama, kukula kwa chamfer kumatha kusinthidwa malinga ndi mainchesi a chitoliro ndi makulidwe a khoma, kudula ndi kusuntha kumatha kuchitika pang'onopang'ono. Chipangizo chotseka chokokera, zotsatira zabwino zokokera chip.

Chitoliro cha PVC ndi chitoliro cha pulasitiki chopangidwa kuchokera ku polyvinyl chloride (PVC) ya thermoplastic. Chitoliro cha PVC chimagwiritsidwa ntchito kwambiri m'mafakitale ndi m'mafakitale osiyanasiyana. Mapaipi a PVC nthawi zambiri amagwiritsidwa ntchito pochotsa madzi m'mitsinje, kupereka madzi, kuthirira, kusamalira mankhwala, machubu otulutsa mpweya, ntchito zoyendetsera ma ducts ndi ntchito zoperekera zinyalala. Zinthu zomwe zilipo zoperekera mapaipi a PVC ndi schedule 40 PVC, schedule 80 PVC, chitoliro cha PVC cha mipando, chitoliro cha CPVC, chitoliro cha drain waste vent (DWV), chitoliro chosinthasintha, chitoliro choyera cha PVC ndi chitoliro chosungira madzi awiri.

Chitoliro cha Ndandanda 40 ndi ndandanda 80 ndi mapaipi osiyanasiyana omwe ali ndi ziphaso zovomerezeka komanso zolembetsedwa malinga ndi malamulo ndi miyezo yamakampani masiku ano. Chitoliro cha PVC cha mipando chimapezeka mumitundu yosiyanasiyana popanda zizindikiro kapena zilembo ndipo chili ndi mawonekedwe oyera komanso owala. Mapaipi a DWV amagwiritsidwa ntchito pokonza zinyalala. Chitoliro chosinthasintha ndi chitoliro cha PVC chosinthika chomwe chimagwiritsidwa ntchito pomwe chitoliro cholimba sichili choyenera kapena chothandiza. Mapaipi omveka bwino amalola kuyang'anira bwino kayendedwe ka madzi ndi mtundu wa chitoliro. Chitoliro chosungira kawiri chimapangidwa kuti chikwaniritse malamulo amakampani kuti chijambule kutuluka kwa madzi kapena kulephera kwa makina kuti chiwongolere chitetezo kapena pamene pakufunika.

Chitoliro cha PVC chikupezeka m'makulidwe kuyambira 1/8 inchi mpaka 24 mainchesi m'mimba mwake. Makulidwe ena odziwika bwino ndi chitoliro cha PVC cha ½ inchi, 1 ½ inchi, 3 inchi, 4 inchi, 6 inchi, 8 inchi ndi 10 inchi. Mapaipi a PVC amatumizidwa m'magawo okhazikika a 10 mapazi kapena 20 mapazi kutalika. Izi zimapulumutsa ndalama zonse zogwirira ntchito ndipo zimalola kupereka zinthu zotsika mtengo. Tili ndi magawo a 5 mapazi a SCH 40 PVC, SCH 80 PVC ndi mipando ya PVC yomwe imapezeka kokha kuti igwiritsidwe ntchito potumiza katundu.

Pamene PVC imagwiritsidwa ntchito ponena za chitoliro cha pulasitiki, nthawi zambiri imamveka kuti ndi uPVC (PVC yopanda pulasitiki) mwa kapangidwe kake. Chitoliro cha uPVC ndi chitoliro cha pulasitiki cholimba ndipo ndi njira yodziwika bwino yopangira mapaipi a PVC yomwe imagwiritsidwa ntchito popanga. Mapaipi a uPVC amapangidwa popanda zinthu zopangira pulasitiki zomwe zitha kuwonjezeredwa kuti zinthu za PVC zikhale zosinthasintha. Chitoliro chosinthasintha ndi chitsanzo cha PVC yopangidwa ndi pulasitiki chifukwa cha kusinthasintha kwake ngati payipi.