Hauv cov txheej txheem ntau lawm ntawm PVC hollow pobzeb khoom, cov khoom siv raw sib tov yog ib qho ntawm cov txheej txheem tseem ceeb hauv kev ua haujlwm PVC. PVC, calcium carbonate, stabilizer, moistening tus neeg sawv cev thiab lwm cov ntaub ntawv raw yog cov khoom hnyav ua ntej thiab tom qab ntawd muab tso rau hauv kev kub ceev tov khoom. Los ntawm tus kheej txhuam cov cua sov ntawm cov ntaub ntawv nyoos thiab cov khoom siv high-speed tov, cov ntaub ntawv raw tuaj yeem sib xyaw tusyees. Qhov tseeb, ntau yam teeb meem nyob rau hauv cov txheej txheem ntau lawm ntawm PVC hollow pobzeb khoom muaj feem xyuam rau kev sib xyaw ntawm cov khoom siv raw, qee qhov yog vim li cas ncaj qha. Yog li ntawd, txaus saib xyuas yuav tsum tau them nyiaj rau kev sib xyaw ntawm cov ntaub ntawv raw khoom nyob rau hauv cov txheej txheem ntawm PVC hollow cov khoom siv pobzeb, thiab kev ua haujlwm yuav tsum tau ua tus qauv raws li cov tseev kom muaj.
Kev ua haujlwm zoo tshaj plaws ntawm cov khoom siv raw sib xyaw hauv cov txheej txheem ntawm PVC hollow pobzeb cov khoom siv yog kom sib xyaw txhua yam kev txuas ntxiv rau hauv cov mis mos tusyees hauv PVC cob los ntawm cov khoom siv sib tov, kom cov khoom ntxiv tuaj yeem ua lub luag haujlwm thiab kom cov khoom muaj kev ua tau zoo heev.
Nyob rau hauv cov txheej txheem ntawm PVC hollow pobzeb khoom nyob rau hauv cov xwm txheej dav dav, hmoov ntxiv tsis tuaj yeem sib kis thiab tov tusyees hauv PVC cob. Lawv yuav muaj nyob rau hauv kev sib xyaw ua ke hauv daim ntawv ntawm cov khoom sib sau ua ke, thiab cov tshuaj ua kom cov yas ua kom tsis tuaj yeem tawg tag hauv PVC cob. Hauv qab qhov kev txiav tawm ntawm tus tov khoom, cov lus ntawm PVC yog qhov tawg tas mus rau hauv cov khoom qub, thiab cov hmoov sau cov khoom sib txuas tau txuas ntxiv mus. Cov tshuaj ntxiv thiab cov kab ua cov khoom me me nrog cov nplaim sib chwv loj dua, uas yooj yim dua rau kev nqus thiab" sib xyaw" nrog txhua lwm yam. Hauv cov txheej txheem kev sib xyaw cov txheej txheem ntawm PVC hollow cov khoom siv pob zeb cov txheej txheem, cov cua kub shear lossis / thiab cov cua kub sab nraud yuav ua rau qhov kub ntawm cov khoom sib xyaw, cov saw hlau molecular ntawm PVC yuav dhau los ua haujlwm ntau ntxiv nrog qhov nce ntawm qhov kub, thiab qhov qog ntawm qhov me me yuav nce , uas yooj yim rau lub diffusion thiab nqus ntawm cov yas thiab ua kom ntau ntxiv rau qhov nqus dej ntawm cov quav dej ntxiv. Tsawg melting point additives, xws li roj nplua nyeem, yuav ua kua nrog qhov nce ntawm qhov kub thiab txias mus rau hauv lub qhov hws ntawm cov khoom siv ntxig xws li cov hnab yas. Yog li, ib qho ntawm cov ntsiab lus tseem ceeb tshaj ntawm PVC hollow nplais cov khoom siv cov txheej txheem yog kom cov khoom sib xyaw nrog cov khoom sib xyaw nrog kev kub ceev thiab ncav cuag ib qho kev sib tov kub, uas tuaj yeem ua rau PVC cov txheej txheem cov khoom xyaw ua kom sib cais thiab sib tov sib luag, thiab ua kom zoo sib xws ntawm cov tom qab plasticization thiab molding ntawm cov ntaub ntawv.
Thaum sov chav, qhov loj npaum li cas ntawm PVC resin yog qhov sib txawv, thiab nws yog qhov yooj yim uas yuav ua rau cov yas tsis sib xws thaum lub sij hawm extrusion molding ntawm PVC hollow pobzeb khoom. Hauv cov txheej txheem ntawm kev sib xyaw nrog kev kub ceev, PVC cob muaj cov duab hloov ntawm cov khoom tawg, rov khi thiab cov hmoov loj zuj zus, thiab muaj cov nyhuv ntawm qhov pom tseeb ntom ntom thiab qee qhov kev sib xyaw ua ke. Cov pom tseeb ntom zuj zus, thiab tus nqi extrusion tuaj yeem muab ntau ntxiv. Qhov rov ua dua thiab homogenization ntawm cov khoom siv tau zoo rau qhov kev tso zis ntawm txheej txheem ntawm kev rho tawm txheej txheem hauv cov khoom siv PVC hollow pobzeb. Qee qhov gelation tuaj yeem nrawm nrawm los mus tom ntej thaum cov khoom ntaws tawm. Tsuas yog thaum PVC hollow cov khoom siv pob zeb ua cov qauv SPC pem teb tuaj yeem ua tiav cov khoom tiav yuav ua tau.