Pretreatment E-coat Painting System E-coating Kab

Cathodic epoxy electro-coatingyog tus qauv ntsuas rau corrosion kuj. Dav siv nyob rau hauv tsheb thiab tsheb qhov chaw industries, lawv muab superior ntsev tsuag, av noo thiab cyclic corrosion kuj. Txawm li cas los xij, cov thev naus laus zis cathodic epoxy feem ntau xav tau lub tsho tiv no los tiv thaiv tshav ntuj. Aromatic epoxy-type coatings yog tshwj xeeb tshaj yog ua rau chalking thiab degradation los ntawm UV Cheebtsam ntawm tshav ntuj.

Cathodic acrylic electro-coatingmuaj nyob rau hauv ntau hom glosses thiab xim kom ua rau sab nrauv durability, gloss retention, xim tuav thiab tiv thaiv corrosion. Cov khoom no yog siv los ua ib lub tsho tiv no hauv kev ua liaj ua teb, nyom thiab vaj, khoom siv, thiab cua txias industries.

Cathodic acrylic electrocoatings feem ntau yog siv rau hauv cov ntawv thov uas ob qho tib si UV durability thiab corrosion tiv thaiv ntawm ferrous substrates (steel) xav tau. Cov cathodic acrylics kuj tseem siv rau hauv cov ntawv thov uas lub teeb xim xav tau.

Cov txheej txheem electrocoat tuaj yeem muab faib ua plaub ntu:

• Kev kho mob

• E-coat tank thiab cov khoom siv ntxiv

• Tom qab yaug

• Kho qhov cub

Nyob rau hauv ib tug raug e-coat txheej txheem, qhov chaw yog thawj zaug ntxuav thiab pretreated nrog ib tug phosphate hloov dua siab tshiab txheej los npaj ib feem rau electrocoating. Tom qab ntawd cov khoom yog dipped rau hauv cov xim da dej uas ncaj qha tam sim no siv ntawm cov khoom thiab "counter" electrode. Xim yog attracted los ntawm hluav taws xob teb rau ib feem thiab tso rau ntawm ib feem. Cov khoom raug tshem tawm ntawm lub da dej, yaug kom rov qab cov xim tsis muaj xim tsis zoo, thiab tom qab ntawd ci los kho cov xim.

Ua ntej pleev xim rau zaj duab xis, feem ntau ntawm cov hlau saum npoo tau txais pretreatment uas feem ntau cuam tshuam nrog cov txheej txheem hloov dua siab tshiab.

Cov txheej txheem pretreatment raug rau e-coat muaj cov kauj ruam hauv qab no:

1) Kev Tu (ib lossis ntau theem)

2) Yaug

3) Kev kho mob

4) Kev hloov pauv txheej

5) Yaug

6) Kev kho mob tom qab

7) Deionized dej yaug.

Cov txheej txheem phosphating tuaj yeem muab faib ua ob hom: hlau phosphate thiab zinc phosphate. Hlau phosphate tau ua cov txheej txheem ntawm kev xaiv rau cov ntawv thov uas tag nrho cov nqi txiav txim siab dhau qhov kev xav tau ntawm kev ua haujlwm. Txij li cov hlau phosphates yog cov txheej nyias dua li zinc phosphates thiab tsuas yog muaj cov hlau ion ntawm lub substrate ua tiav, lawv muab kev txo qis corrosion piv nrog zinc phosphate system. Txawm li cas los xij, nrog kev txwv ib puag ncig ua nruj nruj nrog rau cov hlau hnyav, hlau phosphate txheej ua ke nrog kev kho mob zoo tom qab tuaj yeem muab lwm txoj hauv kev zoo thaum tseem ua tau raws li qhov yuav tsum tau muaj corrosion. Zinc phosphates tau dhau los ua kev kho mob prepaint hauv kev lag luam hlau, tshwj xeeb nrog kev siv cov xim electrocoat. Yog vim li cas yog vim li cas lawv muab zoo dua corrosion kuj thiab xim adhesion dua hlau phosphates nyob rau hauv ntau xav tau kev pab.