Cov hauv qab no yog kev ua tau zoo thiab ua rau kev tsom xam ntawm PVC yeeb nkab tsim cov teeb meem zoo. Lub compression tsis kam thiab kev pabcuam lub neej ntawm PVC kav tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua: qhov zoo ntawm cov kav dej PVC feem ntau raug tshuaj xyuas los ntawm kev sim hydraulic, thiab kev ua haujlwm siab thiab kev pabcuam lub neej ntawm cov kav dej PVC raug sim los ntawm txoj kev no kom ntseeg tau tias cov kav dej siv tau raws li qhov cuam tshuam. qauv. , thiab tsis muaj qhov tshwm sim tawg yuav tshwm sim hauv kev siv tswv yim. Raws li kev tshawb fawb, qee cov kav dej PVC ntawm kev ua lag luam tawg thaum lub sijhawm kuaj hydraulic. Yog tias cov kav dej no tau muab tso rau hauv kev tsim khoom thiab lub neej, nws yuav ua rau muaj kev nyab xeeb zoo heev. Ntxiv nrog rau kev siv ntau ntawm cov fillers hauv kev tsim khoom, qhov ua rau ntawm qhov teeb meem zoo no kuj muaj teeb meem hauv cov txheej txheem ntau lawm. Hauv cov txheej txheem tsim khoom tiag tiag ntawm cov kav dej PVC, cov ntsia hlau ntawm extruder yog tsim raws li cov kev cai ntawm cov txheej txheem ntau lawm. Txawm li cas los xij, ib tug loj tus naj npawb ntawm fillers yog siv nyob rau hauv tiag tiag ntau lawm, uas ua rau cov txheej txheem ntau lawm formula hloov. Thaum extruding, nws yog ib qho nyuaj rau tsim cov kav dej uas zoo txaus siab nyob rau hauv cov xwm txheej uas twb muaj lawm. Polyvinyl chloride yog qhov rhiab heev rau qhov kub thiab txias, thiab nws cov viscosity siab, thiab qhov nce ntawm cov fillers nyob rau hauv cov khoom siv raw ua rau cov yaj tsis tuaj yeem ntws ruaj khov thaum lub sij hawm extrusion. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau kho cov txheej txheem thiab kev tsim cov thev naus laus zis zoo, tab sis kev hloov kho ntawm kev ua thiab kev tsim khoom siv thev naus laus zis yuav ua rau muaj kev hloov pauv ntawm lwm yam, thiab cov qauv kev sim kuj tseem yuav hloov pauv zoo. Tsuas yog nyob rau hauv txoj kev no tuaj yeem tsim Qhov zoo ntawm cov kav dej PVC.
