Los ntawm qhov kev xav ntawm cov khoom siv raw thiab cov txheej txheem, muaj yim qhov laj thawj rau qhov tsis zoo ntawm kev sib koom ua ke ntawm cov yeeb yaj kiab sib xyaw: cov nplaum tsis raug, qhov tsis zoo ntawm cov nplaum nplaum, diluent.muaj dej, cawv residue, hnyav residue, ntau txheej txheej ntawm cov nplaum, tsis txaus curing lub sij hawm thiab kub, thiab additives.
1. Cov nplaum tsis raug
Qhov piv ntawm cov nplaum tau raug ntsuas tsis raug, ua rau tsis txaus kho. Hauv qhov no, nws yog ib qho tsim nyog los ntsuas tag nrho cov ntaub ntawv thiab sau tus nqi kom yooj yim tshuaj xyuas; Qhov thib ob, cov nplaum npaj yuav tsum tau nplawm tag nrho hauv txoj hauv kev kom tsis txhob muaj qhov sib xyaw hauv zos.
2.Improper adhesive cia
Kev khaws cia tsis zoo ntawm cov nplaum ua rau tsis tiav sealing ntawm tus neeg sawv cev kho, ua rau nws hnov mob hauv huab cua thiab haus lwm qhov. Yog li ntawd, cov ntsiab lus tsis txaus ntawm tus neeg sawv cev kho tau tshwm sim thaum sib tov. Yog li ntawd, nws yog ib qho tsim nyog los xyuas qhov kev sib khi ntawm cov nplaum ua ntej siv.
3.Diluent muaj dej
Lub diluent tsis huv txaus thiab muaj dej ntau dhau, cawv ua rau cov nplaum sib faibtsis sib npaug. Kev khaws cia ntawm cov diluent yuav tsum tau ntim nrog cov dej noo hauv huab cua los ntawm kev nkag mus, thiab cov dej ntsiab lus ntawm cov diluent yuav tsum tau kuaj tsis tu ncua.
4. Cawv residue
Kev siv cov dej cawv-soluble number case los yog number case thinner cawv yam tsis qhuav, ntau residue, yog litias cov tshuaj tiv thaiv nrog tus neeg sawv cev kho, ua rau muaj nplaum. Cawv-soluble number case yuav tsum sivcawv-soluble nplaum nplaum, luam ntawv hnyav kom deb li deb tau kom tsis txhob siv cawv piv.
5. Solvent residue
Muaj ntau cov kuab tshuaj residual nyob rau hauv zaj duab xis thaum lub sij hawm cov txheej txheem sib xyaw, thiab cov kuab tshuaj yog qhwv hauv cov nplaum, uas cuam tshuam qhov kev kho. Nws yog ib qho tsim nyog yuav tsum tsis tu ncua xyuas seb cov cua nkag thiab tso pa ntawm lub tshuab ziab khaub ncaws puas zoo li qub, thiab tswj cov kev sib txuas ceev thaum cov dej gluing loj.
6. Cov txheej txheem ntau dhau ntawm cov nplaum
Cov nplaum nplaum yog coated ntau dhau, thiab cov yeeb yaj kiab yob txoj kab uas hla loj dhau, ua rau qeebinternal hardening ntawm cov nplaum. Cov nplaum txheej yuav tsum tsim nyog thiab kev kho yuav tsum txaus.
7.Tsis txaus kho lub sij hawm thiab kub
Qhov kub curing yog qis dhau, qhov kho tau qeeb, thiab kev sib txuas ntawm kev sib txuas tsis txaus. Kev kho kom zoo yuav tsum raug xaiv, lub sijhawm kho yuav tsum txaus, thiab cov nplaum nplaum yuav tsum tau xaiv yog tias tsim nyog. Lub sijhawm kho tsis txaus, qhov kub tsis tuaj yeem ncav cuag, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txiasretort hnab, yuav ua rau cov xim luam ntawv decoloration lossis xim hloov thaum kub kub.
8. Cov tshuaj ntxiv
Kev cuam tshuam ntawm cov khoom ntxiv hauv cov yeeb yaj kiab sib xyaw, xws li cov khoom ntxiv hauv PVDC tuaj yeem ncua sijhawmthiab tiv thaiv tus ntoo khaub lig-txuas curing ntawm cov nplaum, cov softener nyob rau hauv PVC ib qho react nrog NCOpab pawg neeg kho, thiab cov yas ntawm cov mos PVC tuaj yeem nkag mus rau hauv cov nplaum, uas yuavtxo qhov kev sib khi quab yuam thiab thermal stability, yog li kev siv cov tshuaj tua kab mob yuav tsum yogtsim nyog nce.
Post lub sij hawm: Lub Xya hli ntuj-10-2023
