Kev pleev xim rau cov ntaub ntawv yas xws li Polyethylene, Polypropylene, ABS, thiab PET / PBT Blends tuaj yeem ua kom yooj yim me ntsis vim lawv tsis muaj qhov ntxeem tau thiab qee zaum cov nplais nplaum. Txawm li cas los xij, nrog rau txoj kev npaj thiab cov txheej txheem, nws muaj peev xwm ua kom tiav qhov ruaj khov thiab kav ntev. Nov yog cov lus qhia ntxaws txog yuav ua li cas npaj thiab pleev xim rau cov yas no:
** Kev Npaj rau Painting ntawm Plastic Surfaces **
1. ** Kev tu thawj zaug:**
Pib los ntawm kev ntxuav cov yas kom huv si kom tshem tawm cov av, roj, lossis roj uas yuav tiv thaiv cov xim tsis zoo. Ua li no, dampen ib daim ntaub huv los yog daim txhuam cev nrog 50/50 sib tov ntawm Isopropyl Cawv, los yog Denatured Alcohol. So tag nrho saum npoo, kom ntseeg tau tias tag nrho cov kab mob raug tshem tawm.
2. **Sanding the Surface:**
Tom qab ntxuav, cov kauj ruam tom ntej yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam nws, cov txheej txheem ntxuav, cov txheej txheem yuav tsum tau ua tib zoo ntxuav. Siv 60-80 grit sandpaper los xuab zeb tag nrho cheeb tsam koj npaj siab yuav pleev xim. Cov kauj ruam no yog qhov tseem ceeb heev vim nws ua rau thaj chaw saum npoo av, tso cai rau cov primer kom zoo dua.
3. ** Tom qab Sanding Cleaning:**
Thaum sanding tiav lawm, koj yuav tsum tau ntxuav qhov saum npoo dua kom tshem tawm cov hmoov av xuab zeb. Siv tib yam 50/50 Isopropyl Alcohol sib tov los so hauv qhov chaw xuab zeb. Qhov no yuav xyuas kom meej tias tsis muaj cov khib nyiab cuam tshuam nrog adhesion ntawm primer thiab xim.
4. ** Thov Primer:**
Ua ntej siv cov primer, nws yog ib lub tswv yim zoo los sim nws qhov adhesion ntawm qhov chaw me me, tsis pom kev. Siv ib qho me me ntawm 3M Daim kab xev Primer rau ib ntu ntawm qhov chaw npaj. Cov primer no tshwj xeeb tsim los txhim kho kev sib txuas ntawm cov xim rau cov khoom yas.
**Testing Paint Adhesion**
5. **Test Painting:**
Nrog cov primer qhuav, siv ib qho kev sim me me ntawm cov xim pleev xim uas koj tau xaiv. Nco ntsoov, hom xim tuaj yeem sib txawv heev, yog li nws yog qhov tseem ceeb los xyuas kom meej tias nws yuav ua raws li qhov zoo ntawm primed nto.
6. **Adhesion Test:**
Thaum cov xim kuaj tau qhuav tag, nws yog lub sijhawm los ua qhov kev kuaj adhesion. Siv ib rab chais hniav tshiab kom tau cov xim thiab primer nyob rau hauv ib tug ntoo khaub lig-hatch qauv. Pib los ntawm kev kos duab 2-3 inch parallel kab, sib nrug li 1cm sib nrug, zoo li daim phiaj tic-tac-toe. Tom qab ntawd, kos 4 kab txuas ntxiv, kuj tau sib nrug li 1cm sib nrug, sib tshuam thawj kab kab.
7. ** Daim kab xev Test:**
Tom qab tsim tus ntoo khaub lig-hatch qauv, siv cov hlua khi kom ruaj khov rau ntawm thaj chaw thiab tom qab ntawd muab nws tawm sai sai. Yog hais tias ib qho ntawm cov xim los yog primer tawm ntawm daim kab xev, qhov no qhia tias tsis zoo adhesion. Yog tias daim kab xev tawm huv si, tsis muaj xim lossis cov khoom seem, qhov adhesion txaus, thiab koj tuaj yeem mus pleev xim rau tag nrho saum npoo.
**Tsev pleev xim rau tag nrho qhov chaw**
8. ** Daim Ntawv Thov Tag Nrho:**
Nrog rau qhov kev xeem adhesion ua tiav, tam sim no koj tuaj yeem siv cov primer rau tag nrho saum npoo, ua raws li cov chaw tsim khoom cov lus qhia rau lub sijhawm ziab. Thaum cov primer qhuav lawm, koj tuaj yeem siv cov xim pleev xim rau hauv tib yam, kom ntseeg tau tias muaj kev tiv thaiv thiab cia txhua lub tsho kom qhuav raws li kev pom zoo.
** Ceebtoom ntawm Cov Xim Xim:**
Daim ntawv thov no thiab cov txheej txheem kuaj no haum rau ntau yam xim, nrog rau cov xim sab saum toj uas raug rau huab cua thiab cov ntsiab lus, nrog rau cov xim hauv qab uas tuaj yeem cuam tshuam nrog dej lossis lwm yam khoom. Ib txwm siv cov xim uas sib haum nrog cov yas yas thiab ua raws li cov chaw tsim khoom cov lus qhia kom tau txais txiaj ntsig zoo tshaj plaws.
