Dhuumaha birta galvanizedwaa xaalad ka mid ah zinc birta dhalaalaysa iyo falcelinta substrate-ka birta ee lakabka alloy, si ay isku darka substrate iyo daahan ee labadaba.Isticmaalka tignoolajiyada galvanized, Hot Dip galvanized ayaa marka hore sameeya pickling, si ay meesha uga saarto birta ah ee oksaydhka birta, ka dib markii la qaado, iyada oo xal aqueous ah ammonium chloride ama zinc chloride ama ammonium chloride iyo zinc chlorinated isku qasan taangiga xal aqueous si aad u nadiifiso, ka dibna u geli qubeys dahaadh kulul-kulul.Ku-kulul-kulul galvanized oo leh lebis daahan, ku dheggan xooggan, cimri dheer iyo faa'iidooyin kale.Sidaa darteed, farsamooyinka by substrate bir galvanized kulul qubayska iyo qubeyska dhalaalaysa iyada oo loo marayo jirka kakan, falcelinta kiimikada, formation of a daxalka u adkaysta zinc-daawaha qaab-dhismeedka is haysta.Sidaa darteed, lakabka daawaha birta galvanized iyo lakabka zinc saafiga ah, isku darka saldhigga birta ayaa ka dhigaya awoodda iska caabinta daxalka.

Galmada firfircoon ee kiimikada Zinc waxay ka sarraysaa birta, marka daxalka korantada kiimikaad yimaado, daxalka ugu horreeya waa zinc beddelka birta, zinc oxide iyo xoogaa is haysta, taas oo ka hortagi karta oksaydh kale.Caadi ahaan birta galvanized waxay leedahay iska caabin daxalka wanaagsan, daxalka tuubooyinka birta ee duugan waxay u qaybsantaa laba nooc oo daxalka isku midka ah iyo daxalka gudaha, daxalka gudaha inta badana xukuma, khatarta ayaa ah tan ugu weyn.Daxalka birta ee habka kala dirida elektiroonigga ee ciidda waxaa inta badan sabab u ah samaynta unugyada daxalka taasoo keentay daloolinta daxalka dhuumaha.Riix anode unugga daxalka ah iyo cabbirka kala dheereynta cathode, laakiin sidoo kale u qaabeeya birta daxalka unugyada-yar-yar iyo daxalka unugga weyn ee laba qaybood.Daxalka Electrochemical ee geeddi-socodka dhuumaha la aasay, habka ka hortagga daxalka birta kaas oo laga bilaabo habka.Haddii gidaarka tuubada iyo daahan ka-hortagga daxalka, caabbinta loop waa la kordhin karaa, hoos u dhigidda hadda daxalka;sahayda korontada dibadda DC, si tuubooyinka ciidda sababa iman kara taban, formation of ilaalinta cathodic kala duwanaansho iman kara in laga takhaluso xididka si loo joojiyo geeddi-socodka anode iyo cathode sii.Laakiin mar alla markii daaha ka-hortagga daxalka uu dhaawacmo, qaybaha birta ee bannaan waxay soo dedejin doonaan daxalka gudaha.Sidaa darteed, daahan ka-hortagga daxalka iyo ilaalinta cathodic oo la isku daray habkan ayaa ah miiska, dhaqaale iyo wax ku ool ah.