Chitsulo sizinthu zokha zomwe zingathe kuponyedwa, pulasitiki imatha kuponyedwanso.Zinthu zosalala bwino zimapangidwa pothira zinthu zapulasitiki zamadzimadzi mu nkhungu, kuti zichiritse mchipinda kapena kutentha pang'ono, ndikuchotsa zomwe zamalizidwa.Njira imeneyi nthawi zambiri imatchedwa kuponyera.Zomwe zimagwiritsidwa ntchito kwambiri ndi acrylic, phenolic, polyester ndi epoxy.Nthawi zambiri amagwiritsidwa ntchito popanga zinthu zopanda pake, mapanelo, ndi zina zambiri, pogwiritsa ntchito njira zapulasitiki kuphatikiza kuumba, kuumba slurry, ndi kuzungulira kozungulira.
(1) Kugwetsa akamaumba
Kutentha kwakukulu kumanyowa mumadzimadzi apulasitiki osungunuka, kenaka amachotsedwa pang'onopang'ono, zowuma, ndipo pamapeto pake chinthu chomalizidwacho chimachotsedwa mu nkhungu.Kuthamanga komwe nkhungu imachotsedwa mu pulasitiki iyenera kuyendetsedwa.Kuthamanga kwapang'onopang'ono, kumapangitsa kuti pulasitiki isanjike.Njirayi ili ndi ubwino wamtengo wapatali ndipo ikhoza kupangidwa m'magulu ang'onoang'ono.Nthawi zambiri amagwiritsidwa ntchito kupanga zinthu zopanda kanthu monga ma baluni, magolovesi apulasitiki, zogwirira ntchito zamanja ndi zida zamankhwala.
(2) Kumangirira ma condensation
Madzi apulasitiki osungunuka amatsanuliridwa mu nkhungu yotentha kwambiri kuti apange chinthu chopanda kanthu.Pambuyo pulasitiki kupanga wosanjikiza pamwamba pamwamba pa nkhungu, zinthu owonjezera kutsanulidwa.Pambuyo polimba pulasitiki, nkhungu ikhoza kutsegulidwa kuti ichotse gawolo.Pulasitiki ikakhala nthawi yayitali mu nkhungu, chipolopolocho chimakhala chokhuthala.Uwu ndi njira yaufulu yomwe imatha kupanga mawonekedwe ovuta kwambiri okhala ndi zodzikongoletsera zabwino.Mkati mwagalimoto nthawi zambiri amapangidwa ndi PVC ndi TPU, zomwe nthawi zambiri zimagwiritsidwa ntchito pamalo monga ma dashboards ndi zogwirira zitseko.
3) Kujambula kozungulira
Kuchuluka kwa pulasitiki kusungunula kumayikidwa mumoto wotentha wa zidutswa ziwiri zotsekedwa, ndipo nkhungu imazungulira kuti igawire zinthuzo mofanana pamakoma a nkhungu.Pambuyo kulimbitsa, nkhungu imatha kutsegulidwa kuti itulutse chomaliza.Panthawi imeneyi, mpweya kapena madzi amagwiritsidwa ntchito kuziziritsa zomwe zatha.Chomalizidwacho chiyenera kukhala chopanda kanthu, ndipo chifukwa cha kasinthasintha, chotsirizidwacho chimakhala ndi mphuno yofewa.Pachiyambi, kuchuluka kwa madzi apulasitiki kumatsimikizira makulidwe a khoma.Nthawi zambiri amagwiritsidwa ntchito popanga zinthu zozungulira za axially symmetrical monga miphika yamaluwa yamaluwa, zida zosewerera ana, zida zowunikira, zida za nsanja yamadzi, ndi zina.
Nthawi yotumiza: Jun-01-2022