plating

Electroplating txhais tau hais tias nyob rau hauv ib txoj hauv kev uas muaj hlau ion plated, ib txheej plated yuav muab tau ntawm lub substrate los ntawm electrolysis, siv cov khoom los yog cov khoom yuav tsum plated li ib lub cathode. Hauv cov txheej txheem electrolysis, muaj tshuaj lom neeg tshwm sim nyob rau ntawm qhov nruab nrab ntawm cov electrode thiab electrolyte, qhov anode tso tawm electrons mus rau qhov tshuaj oxidation, thiab lub cathode absorbs electrons los mus txo cov tshuaj tiv thaiv. Electroplating tau lub tsho tiv thaiv ib yam khoom los yog cov tshooj nrog ib txheej uas muaj lub cev zoo thiab muaj kev sib zog ua kom zoo, thiaj li hloov nws cov yam ntxwv nto thiab qhov muag thiab ua tiav cov khoom tiv thaiv lossis kho kom zoo nkauj. Electroplating yuav tsum siv ncaj qha tam sim no (tsis tshua muaj hluav taws xob), thiab siv tau los txhim kho cov zinc, cadmium, tooj liab, roj hmab thiab lwm yam hlau lossis zinc-nickel, nickel-thin, nickel-tooj liab, tooj liab-zinc thiab lwm yam rau lub plating thiab hom hlau uas muaj hluav taws xob ua hluav taws xob Txawm tias thaum lub tshuab electrode txawv, nws muab faib ua ob hom anode txheej thiab cathode txheej. Hauv qhov nruab nrab hauv corrosive, lub peev xwm ntawm cov txheej txheem anodized yog ntau qhov tsis zoo dua li ntawm lub hauv paus hlau. Piv txwv, zinc lossis cadmium siv rau cov hlau. Thaum lub txheej yog puas, lub txheej yuav ua lub neej tawg, thiab cov hlau yuav muaj kev tiv thaiv hluav taws xob, uas yog, "kev tiv thaiv" tiv thaiv. Lub thicker lub txheej, ntau dua qhov kev tiv thaiv Lub peev xwm ntawm cathode txheej yog ntau zoo tshaj qhov ntawm lub hauv paus hlau. Piv txwv, txhuas, tooj liab, thiab npib tsib hnyav yog co ntawm cov hlau. Thaum cov txheej pov tseg, qhov txheej txheem accelerates tus corrosion ntawm cov kis ntawm cov hlau hlau, thiab tuaj yeem tiv thaiv tau tsuas yog thaum tag nrho cov tshuaj tiv thaiv. Yog li ntawd, qhov txheej txheem yuav tsum xyuam xim rau nws ceev nrooj thiab tsis muaj kev puas tsuaj, thaum lub peev xwm tiv thaiv nws txiav nws cov porosity, tsawg porosity, thiab ib tug loj tiv thaiv zoo. Nws cov nyhuv los tiv thaiv corrosion yog siv cov txheej los cais tawm cheeb tsam sab nraud, yog li ntawd qhov corrosive nruab nrab tsis tuaj mus rau hauv lub hauv paus hlau