PVC yas pellets tiag tiag yog cov khoom siv yooj yim rau PVC yas molding, uas yog cov khoom siv tsis-crystalline. Lub qhov (socket) hauv qab lub thawv, cov khoom ua si, thoob, lub tub yees cov ntsaws ruaj ruaj, thiab lwm yam uas peb feem ntau pom nyob ib puag ncig peb yog txhua yam ua los ntawm PVC yas pellets. Cov khoom siv no muaj cov yam ntxwv zoo xws li lub zog siab, tsis muaj hluav taws xob thiab ruaj khov, thiab muaj kev tiv thaiv zoo rau oxidants thiab muaj zog acids, tab sis cov khoom no yuav tsum tsis txhob muaj cov khoom muaj zog corrosive xws li concentrated sulfuric acid, txwv tsis pub nws yuav corroded. Siv lub tshuab extruder, PVC yas pellets tuaj yeem extruded rau hauv hoses, xov hlau thiab cables, thiab lwm yam, thiab lub tshuab txhaj tshuaj molding tuaj yeem siv nrog ntau yam pwm los ua cov khoom ua si yas, nws pib qhov chaw, thiab lwm yam. Stabilizers, lubricants thiab fillers yog ntxiv rau cov khoom ua si. PVC yas granules. Tom qab sib tov, lub extruder tuaj yeem siv los extrude cov kav dej ntawm ntau txoj kab uas hla, cov kav dej haus, cov hlau casings, cov kav dej hauv vaj, cov kav dej winding, thiab lwm yam. Rigid PVC yas granules yog sib sau ua ke los ntawm cov khoom tshwj xeeb zoo li tus, thiab tuaj yeem ua rau hauv lub qhov rooj yas yas. thiab qhov rais thiab lwm yam khoom.
