Kev tsim cov yeeb yaj kiab PVC feem ntau suav nrog kev npaj cov khoom siv raw, batching thiab sib tov, yaj extrusion, calendering thiab txias, traction thiab winding, kev kho deg, kev tshuaj xyuas zoo thiab ntim thiab lwm yam.
Hauv kev npaj cov khoom siv raw, cov khoom siv tseem ceeb yog PVC resin, uas yog sib xyaw ntawm cov khoom siv polymers thiab cov khoom ntxiv. Tsis tas li ntawd, cov additives xws li plasticizers, stabilizers, thiab fillers kuj yuav tsum tau, thiab cov hom thiab proportions ntawm cov additives yog kho raws li qhov kev ua tau zoo ntawm cov khoom kawg.
Cov kauj ruam tom ntej yog cov txheej txheem batching thiab sib tov, qhov twg PVC resin thiab ntau yam additives yog sib tov sib npaug hauv ib qho kev faib ua feem los tsim PVC composites. Nyob rau hauv cov kauj ruam no, qhov kub thiab txias thiab lub sij hawm tswj yog ib qho tseem ceeb los xyuas kom meej lub uniformity thiab stability ntawm cov sib tov.
Melt extrusion yog ib qho ntawm cov kauj ruam tseem ceeb hauv PVC zaj duab xis ntau lawm. Cov khoom sib xyaw PVC sib xyaw yog pub rau hauv extruder, rhuab mus rau lub xeev molten ntawm qhov kub thiab txias, thiab extruded rau hauv ib zaj duab xis tas li los ntawm extruder pwm. Qhov kub thiab siab ntawm lub extruder yuav tsum tau hloov kho raws li qhov sib txawv PVC formulations kom paub meej tias cov khoom yuav tsum tau tag nrho melted thiab extruded tusyees.
Cov khoom siv PVC molten extruded yog tom qab ntawd ua tiav los ntawm lub tshuab calender los ua ib zaj duab xis nyias. Thaum lub sij hawm calendering txheej txheem, tsis xws li kub, ceev, thiab nro yuav tsum tau tswj nruj me ntsis kom ntseeg tau tias uniform film thickness thiab tiaj tus. Txhawm rau tiv thaiv cov yeeb yaj kiab los ntawm deforming los yog ua rau ntawm qhov kub thiab txias, nws kuj tseem yuav tsum tau ua kom txias txias kom ceev cov yeeb yaj kiab.
PVC daim nyias nyias uas tau calendered thiab txias yuav tsum tau rub thiab rewinded. Thaum lub sij hawm traction txheej txheem, qhov ceev thiab nro yuav tsum tau tswj kom lub flatness thiab uniformity ntawm cov ntaub ntawv membrane. Thaum winding, yuav tsum tau them nyiaj mloog mus rau kev kho qhov chaw thiab nro ntawm cov tub ntxhais kom tsis txhob muaj wrinkles los yog deformation ntawm cov ntaub ntawv zaj duab xis.
Txhawm rau txhim kho qhov tawv tawv thiab tiv thaiv -cov khoom ntawm PVC zaj duab xis, kuj yuav tsum tau kho qhov chaw. Feem ntau siv cov txheej txheem kho deg muaj xws li txheej txheej, txheej txheej, thiab lamination, uas tuaj yeem txhim kho kev ua tau zoo thiab zoo nkauj ntawm cov ntaub ntawv zaj duab xis.
Thaum kawg, cov khoom siv PVC zaj duab xis raug kuaj thiab ntim. Kev soj ntsuam zoo suav nrog thickness, hardness, pob tshab, tensile lub zog, thiab lwm yam kom ntseeg tau tias qhov zoo ntawm cov yeeb yaj kiab ua tau raws li qhov yuav tsum tau ua. Thaum ntim, xaiv cov khoom ntim tsim nyog thiab cov txheej txheem los tiv thaiv zaj duab xis los ntawm kev puas tsuaj thaum thauj thiab siv.
Tag nrho cov txheej txheem ntawm PVC zaj duab xis yuav tsum nruj tswj hwm ntawm cov txheej txheem tsis thiab cov kev cai ntawm txhua theem kom ntseeg tau tias qhov zoo thiab kev ua tau zoo ntawm cov khoom kawg. Nyob rau tib lub sijhawm, nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, cov txheej txheem tsim khoom ntawm PVC zaj duab xis kuj tseem raug kho kom zoo thiab txhim kho kom tau raws li qhov xav tau ntawm ntau yam kev siv.