Thaum lub sij hawm kub-dip galvanizing ntau lawm, ib txheej ntawm zinc oxide (feem ntau zno) ntab nyob rau saum npoo ntawm zinc da dej thiab maj mam thickens. Yog tias tsis tshem tawm, nws tuaj yeem ua rau Ungalvanized dub me ntsis ntawm Galvanized steel kav, uas ua rau muaj cov khoom lag luam uas tsis xws luag. Yog li ntawd, kub-dip galvaning nquag scrape cov zinc oxide tawm ntawm cov npoo ntawm cov da dej zinc. Nyob rau hauv cov txheej txheem siv zinc chloride + ammonium chloride li flux, zinc oxide yog feem ntau scraped txhua ib nrab teev lossis li ntawd. Nyob rau hauv cov txheej txheem siv hydrochloric acid li flux, txawm li cas los xij, zinc oxide yuav tsum tau scraped txhua 5 mus rau 6 feeb vim muaj tus nqi ntau dua ntawm zinc oxide tsim. Qhov no yog vim tias yav dhau los flux tsim cov tshuaj ox ox ox oxide tsawg dua, thaum lub tom kawg tsim dua.
Nyob rau hauv kub-dip galvanizing ntau lawm, tsim cov hlau-zinc alloy, lossis muaj peev xwm galvanize dawb los ntawm cov hlau oxide txheej thiab lwm yam impurities. Yog li ntawd, flux yog siv los tiv thaiv thiab ntxuav cov kua qaub-pickled steel yeeb nkab substrate saum npoo los ntawm oxidation los ntawm atmospherion oxygen. Thaum cov yeeb nkab steel yog raus hauv cov da dej Thaum muaj ntau npaum li cas ntawm zinc oxide yog tam sim no ntawm cov yeeb nkab steel nkag ntawm cov dinc da dej nto, flux yog thawj zaug hlawv. Txawm hais tias nws tsis hlawv, nws tsis tuaj yeem rhuav tshem tus nqi loj ntawm zinc oxide hauv da dej zinc. Raws li ib tug tshwm sim, cov yeeb nkab hlau ntshiab av substrate yog tam sim ntawd cov cua lossis zinc oxide lossis ib qho oxide txheej lossis flux residue sai sai rau nws cov nplaim dej, ua rau ungalvanized dub me ntsis. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau txhuam cov zinc oxide tawm ntawm qhov chaw da dej Ntev npaum li cov txheej txheem yav dhau los tau raug tua tau zoo, cov txheej txheem galvanizing tuaj yeem ua kom cov ntawv siv zinc tsis muaj qhov zinc oxide lossis lwm yam.
Txawm li cas los xij, kev khawb ntau dhau kuj muaj cov teeb meem. Scraping ua rau cov hlau ci ci ci rau saum da dej Yog tias txhuas ntxiv rau cov da dej zinc, aluminium oxide (Al2o3) kuj tseem tau tsim tawm. Yog li ntawd, ntau dua zinc oxide yog scraped, ntau zinc oxide yog tsim, zinc tau nce thiab cov nqi. Yog li ntawd, cov neeg ua haujlwm tshaj lij tau ua tiav cov kev pom zoo ntawm cov kev coj ua.
