Ob qho tib si hlau txheej txheej thiab cov organic txheej ntawm lub caij nplooj ntoos hlav yuav tsum ua tau raws li qhov yuav tsum tau ntawm cov txheej txheej tuab (plating) thiab ruaj khov ua ke nrog cov substrate. Feem ntau, cov tsos ntawm cov txheej (plating) txheej xws li tev tawm ntawm txheej (plating) txheej, bubbling los yog tawg, thiab ib nrab uncoated txheej, thiab lwm yam, yog tshwm sim los ntawm qhov chaw tsis huv ua ntej hlau txheej (plating. ). Piv nrog cov organic solvent coatings, dej-raws li lub caij nplooj ntoos hlav hlau nto txheej, xws li electroplating, anodizing, phosphating, thiab dej-raws li xim coatings, yog rhiab heev rau cov organic paug ntawm hlau nto, txawm monolayer contaminants, uas yuav ua rau tsis ua hauj lwm ntawm cov organic solvent coatings. tag nrho cov txheej txheem. Yog li ntawd, kev huv ntawm cov khoom tom qab txheej txheej (plating) yog qhov tseem ceeb heev.
Txoj kev: 1. Kev soj ntsuam pom thiab kho qhov muag
Cov roj stains ntawm ci iab hlau tuaj yeem pom nrog lub qhov muag liab qab thiab nrog kev pab los ntawm lub iav tsom iav los yog kho qhov muag tsom iav. Qhov tsis zoo yog tias blunt oxide zaj duab xis ntawm cov hlau saum npoo thiab cov roj tsis tshua muaj nyias tsis tuaj yeem kuaj pom. Rau cov hlau ntxhib thiab tsis ci ntsa iab, cov hau kev saum toj no tsis muaj zog, tab sis koj tuaj yeem so lub ntsej muag nrog cov paj rwb huv thiab dawb, ntaub, thiab ntawv, thiab tom qab ntawd saib seb nws puas huv los txiav txim siab seb cov hlau puas huv.
2. Nto nro txoj kev
Raws li kev cuam tshuam ntawm cov roj saum npoo ntawm nws lub zog saum npoo, lub zog saum npoo ntawm cov hlau yog txiav txim siab los ntawm seb nws puas yog wetted nyob rau hauv ib tug series ntawm kev ntsuam xyuas cov kev daws teeb meem nrog txawv deg tensions, thiab qhov huv si ntawm lub nto yog txiav txim raws li. YOG IB QHOV CHAW UA HAUJ LWM NTAWM 80% ACETIC ACID thiab 20% dej) (V/V, tib yam hauv qab no) rau 1% Ethanol thiab 99% Dej tau npaj, SURFACE TENSION nce{26 × 25. }}N/CM TO 66.0 × 10-5N/CM.
