mankhwala

PVC utomoni wothirira chitoliro,
ulimi wothirira chitoliro zopangira, pvc kwa chitoliro chothirira,

Chitoliro chothirira cha PVC:

(1) PVC ulimi wothirira chitoliro ali kwambiri asidi kukana, kukana zamchere ndi kukana dzimbiri, amene ali abwino kwambiri makampani mankhwala.Khoma pamwamba pa PVC ulimi wothirira chitoliro ndi yosalala.Kukaniza kwamadzimadzi ndikochepa, ndipo roughness coefficient yake ndi 0.009 yokha, yomwe ili yotsika kuposa mapaipi ena.Pansi pa mlingo womwewo wothamanga, kutalika kwa chitoliro kumatha kuchepetsedwa.Kukaniza kwamadzi, kukana kuthamanga kwakunja ndi kukana kwa mipope yothirira ya PVC ndizokwera kwambiri, zomwe ndizoyenera kupanga mapaipi pansi pamikhalidwe yosiyanasiyana.Ndiwotchipa ndipo amagwiritsidwa ntchito kwambiri.
(2) PVC ulimi wothirira chitoliro akhoza kutsatira ndondomeko kukula kwa mbewu kuzindikira ulimi wothirira wamakono.Madzi a kuthirira amatha kusankhidwa motengera chinyezi cha mbewu ndi nthaka.
(3) PVC ulimi wothirira chitoliro kwambiri mwamtheradi akhoza zochokera makhalidwe a kweather panopa kukwaniritsa zolondola madzi ndi fetereza muzu wa mbewu njira ulimi wothirira.Izi zikhoza kuchepetsa ntchito yamanja.
(4) PVC ulimi wothirira chitoliro akhoza kunyamula wololera kumwa madzi ulimi wothirira malinga ndi kukula kwa mbewu, amene angathe kuonetsetsa ulimi wothirira nthawi yake ndi koyenera wa mbewu ndi kuyala maziko olimba kuwongolera zokolola za mbewu.
(5) Mipope yothirira amagwiritsidwa ntchito m'matauni ndi kumidzi m'nyumba ndi kunja kwa madzi, kupititsa patsogolo madzi akumidzi, ulimi wothirira, ulimi wothirira, payipi yotumizira brine ya mchere ndi mafakitale amadzimadzi, kuyendetsa madzi kwa mafakitale a m'madzi, mpweya wabwino wa migodi, madzi ndi ngalande, sprinkler yokonza malo. ulimi wothirira ndi ntchito zina zazikulu ndi zazing'ono.

Polyvinyl Chloride (PVC) ndi mzere wa thermoplastic utomoni wopangidwa ndi polymerization wa vinyl chloride monomer.Chifukwa cha kusiyana kwa zipangizo, pali njira ziwiri za synthesizing vinilu kolorayidi monomer kashiamu carbide ndondomeko ndi mafuta ndondomeko.Sinopec PVC itengera njira ziwiri zoyimitsidwa, motsatana kuchokera ku Japan Shin-Etsu Chemical Company ndi American Oxy Vinyls Company.Chogulitsacho chili ndi kukana kwa dzimbiri kwamankhwala, katundu wabwino kwambiri wamagetsi wamagetsi komanso kukhazikika kwamankhwala abwino.Pokhala ndi klorini wambiri, zinthuzo zimakhala ndi mphamvu zochepetsera moto komanso zozimitsa zokha.PVC ndi yosavuta pokonza ndi extrusion, jekeseni akamaumba, calendering, kuwomba akamaumba, compressing, kuponya akamaumba ndi akamaumba matenthedwe, etc.

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