Cov txheej txheem nias ntawm PVC zaj duab xis tuaj yeem muab faib ua cov kauj ruam hauv qab no:
Kev npaj cov khoom siv raw: Raws li cov lus qhia tshwj xeeb ntawm daim nyias nyias yuav tsum tau tsim, npaj cov khoom tsim nyog ntawm PVC cov ntaub ntawv, hnyav thiab faib ua feem, kom ntseeg tau tias qhov zoo thiab kev ua tau zoo ntawm daim nyias nyias.
Cua sov thiab melting: Muab cov khoom siv PVC rau hauv lub tshuab kub yaj, thiab siv hluav taws xob cua sov los yog cua sov nruab nrab los hloov cov khoom siv PVC los ntawm cov khoom mus rau cov kua ntawm qhov kub thiab txias. Thaum lub sijhawm txheej txheem no, qhov kub thiab ceev ntawm lub tshuab kub yaj yuav tsum tau tswj xyuas kom ntseeg tau tias cov khoom siv PVC tuaj yeem yaj tau sib npaug.
Calendering: Tom qab molten PVC raw khoom yog rhuab, nws yog tig mus rau hauv ib zaj duab xis ntawm ib tug tej yam dav thiab thickness los ntawm qhov kev txiav txim ntawm ib tug calender. Nyob rau hauv lub calender, los ntawm kev tswj cov kev sib hloov ceev thiab siab ntawm ob lub rollers, molten PVC raw khoom yog sib npaug extruded los tsim ib zaj duab xis ntawm cov chais. Tib lub sijhawm, raws li kev xav tau, textures, qauv, thiab lwm yam tuaj yeem muab ntxiv rau saum npoo ntawm zaj duab xis.
Txias thiab solidification: Lub calendered zaj duab xis yuav tsum tau txias los ntawm ib tug txias rau cov menyuam system kom solidify PVC thiab tuav lub thickness yuav tsum tau.
Kev ua haujlwm tom ntej: Nyob ntawm qhov xav tau ntawm kev siv zaj duab xis, yuav tsum tau ua ntxiv. Piv txwv li, yog tias zaj duab xis yog siv rau kev ntim khoom, nws tuaj yeem luam tawm nrog tus qauv siv lub tshuab luam ntawv, los yog nws tuaj yeem coated nrog cov txheej txheem tiv thaiv.
Winding thiab Boxing: Cov yeeb yaj kiab ua tiav yog dov rau hauv yob siv lub tshuab winding, thiab tom qab ntawd cov yob yog ntim thiab npaj rau kev xa khoom rau cov neeg siv khoom.
Thaum lub sij hawm tag nrho cov txheej txheem nias, kuj yuav tsum tau them nyiaj mloog mus rau kev tswj cov txheej txheem tsis, xws li molding workpiece spacing, siab chaw, thiab lwm yam., los xyuas kom meej qhov zoo thiab kev ua tau zoo ntawm PVC zaj duab xis. Tib lub sijhawm, kev ua tiav kev ua haujlwm xws li kho cov kav dej thiab ntxuav qhov chaw tsim kho kuj tseem ceeb.
Thov nco ntsoov tias cov txheej txheem nias tshwj xeeb yuav txawv nyob ntawm cov tuam txhab sib txawv, cov khoom siv thiab cov khoom yuav tsum tau ua. Hauv kev ua haujlwm tiag tiag, cov txheej txheem tsis ua haujlwm thiab cov lus qhia ua haujlwm tau muab los ntawm cov chaw tsim khoom yuav tsum tau ua raws nruj me ntsis kom ntseeg tau tias qhov zoo thiab kev ua haujlwm ntawm PVC zaj duab xis yog qhov zoo.
Post lub sij hawm: Jun-17-2024