Vim li cas thiaj muaj xim sib txawv ntawm qhov chaw ntawm lubPrepainted Galvanized Steel Chev?
(paint, paint film thickness, viscosity, temperature, cooling water, curing oven, paint uneven or unstirred )
Xim
Refers to the paint color difference between different batches or different barrels (light color)
Tag nrho cov pigments thiab fillers ntawm cov xim yog txawv
Thaum hloov cov batch tshiab lossis cov xim tshiab, nws txuas ntxiv los ntawm cov kev taw qhia ntawm qhov chaw noj mov mus rau cov kev taw qhia ntawm qhov chaw nres nkoj rov qab, ua rau cov xim sib txawv.
Nta: Nws txuas los ntawm sab ntawm qhov chaw noj mov mus rau cov kev taw qhia ntawm qhov chaw nres nkoj rov qab, muab faib rau hauv txoj siv sia, thiab maj mam widens
Kev daws: nrhiav qhov laj thawj rau xim.
Kev lees paub: Los ntawm cov ntawv kuaj scraper, sib piv ob qhov sib txawvPrepainted Galvanized Steel Chev.
2. Xim zaj duab xis thickness
Cov xim sib txawv yog tshwm sim los ntawm cov xim sib txawv.
Kev hloov siab los ntawm cov xim viscosity, txheej chais, thiab cov nplaum nplaum
Tsis muaj qhov txawv txav, tab sis muaj qhov sib txawv loj ntawm txhua lub kauj.
Kev daws: nruj me ntsis tswj cov xim noj
Paub meej: xyuam xim rau qhov kev hloov ntawm cov xim siv.
3. Viscosity
Hais txog cov xim sib txawv tshwm sim los ntawm qhov qis lossis siab viscosity ntawm lub tshuab
Lub viscosity nyob rau hauv lub chim yog heev txawv los ntawm viscosity ntawm cov xim nyob rau hauv lub chim.
Ob peb feeb tom qab hloov cov xim, muaj ib pawg -zoo li xim txawv ntawm sab ntawm qhov chaw noj mov.
Ib yam li yav dhau los xim xim zaj duab xis thickness hloov, nyob rau hauv qhov tseeb, qhov siab los yog tsawg viscosity yuav nws thiaj li ua rau cov xim zaj duab xis thickness.
Solution: after changing the paint a few minutes, there is a band-like color difference from the side of the feeding port
Ua tib zoo saib xyuas cov xim siv.
4. Hlau ntawv kub
The color difference caused by the high or low temperature of the fingerboard
Qhov kub ntawm lub cub tawg yog qhov tsis tsim nyog thiab siv cov khoom tsis raug.
Phenomenon: Lub gloss ntawm daim ntawv tsis siab, thiab MEK tsis tsim nyog
Tsis muaj teeb meem nrog tib daim ntawv, tab sis txawv coils nrog qhov sib txawv loj.
Kev daws: ntsuas cov ntawv ntsuas kub ib ntus, thiab hloov cov kev qhia tshwj xeeb (qhov txawv yog qhov tseem ceeb) los ntsuas qhov kub ntawm lub rooj tsavxwm.
Paub meej: MEK xeem glossy.
5. Cov dej txias
2 Cov xim txawv los ntawm qhov tsis muaj dej tsis zoo
Qhov zoo ntawm 2 dej thiab dej txias tsis zoo, thiab cov nyhuv ziab ntawm cov squeezing roller tsis zoo.
Phenomenon: lub board nto yog dub, thiab gloss tsis siab
Nta: cov av av tuaj yeem wiped tawm nrog paj rwb xov
Kev daws: hloov cov dej- cov dej txias hauv lub sijhawm los txhim kho cov nyhuv ntawm cov squeezing
Paub meej: lub ntsej muag gloss tsis siab, tab sis cov av hauv av tuaj yeem raug tshem tawm nrog paj rwb xov los kho qhov qub gloss.
6. Lub cub tawg
Cov xim sib txawv yog nyob ntawm ob sab ntawm tus ntiv tes.
Qhov kub ntawm sab kis tau tus mob thiab kev ua hauj lwm sab ntawm lub qhov cub curing yog tsis sib xws.
Nta: Tsis muaj qhov pom tseeb chromatic aberration nyob rau hauv ntsug kev taw qhia, thiab lateral chromatic aberration yog loj (zoo ib yam li qhov txawv ntawm zaj duab xis thickness ntawm ob sab)
7. Cov xim tsis sib npaug los yog tsis nplawm
Muab faib rau ntawm lub rooj tsavxwm nyob rau hauv ib daim kab xev
Cov xim yog delaminated, ua rau tsis zoo viscosity.
