PVC yas molding yog hais txog cov txheej txheem ntawm kev ua polyvinyl chloride (PVC) cob rau hauv cov khoom ntawm cov duab uas xav tau siv cov tswv yim tshwj xeeb. Raws li cov ntaub ntawv tshaj tawm, PVC yog cov thermoplastic, thiab nws txoj kev molding muaj ntau haiv neeg, feem ntau yog nyob ntawm cov duab, qhov loj me, kev ua tau zoo, thiab seb cov yas puas ntxiv (mos lossis tawv PVC).
Kev xaiv cov yas molding feem ntau yog nyob ntawm hom yas (thermoplastic lossis thermosetting), nws thawj daim ntawv, thiab cov duab thiab qhov loj ntawm cov khoom. Cov txheej txheem dav dav rau kev ua cov yas thermoplastic muaj xws li extrusion, txhaj tshuaj molding, calendering, tshuab moulding, thiab thermoforming. Rau cov thermosetting yas, compression molding, hloov molding, thiab txhaj tshuaj molding feem ntau yog siv. Lamination, compression molding, thiab thermoforming yog txoj hauv kev rau shaping plastics ntawm ib qho chaw tiaj tus. Tag nrho cov txheej txheem ua cov yas saum toj no kuj tseem siv tau rau kev ua cov roj hmab. Tsis tas li ntawd, muaj casting siv cov kua monomers los yog polymers ua raw khoom. Ntawm cov txheej txheem no, extrusion thiab txhaj tshuaj molding yog feem ntau siv thiab yog cov txheej txheem molding yooj yim tshaj plaws.
