Galvanized steel pipeis is state of yakanyungudutswa simbi zinc uye iron substrate reaction yealloy layer, kuitira kuti substrate uye coating musanganiswa wezvose.Pakushandisa tekinoroji mumarara, Dip rinopisa rinovhenekerwa kutanga kuita pickling, kuitira kuti ubvise simbi pamusoro pe iron oxide, mushure mekunhonga, kuburikidza nemushonga une mvura weammonium chloride kana zinc chloride kana ammonium chloride uye chlorinated zinc yakasanganiswa aqueous solution tank. yekuchenesa, uyezve mune inopisa-dip plating yekugezera.Kupisa-kunyura kwakakomberedzwa nekupfeka kufanana, kunamatira kwakasimba, hupenyu hurefu uye zvimwe zvakanaka.Naizvozvo, matekiniki nekupisa dip galvanized simbi substrate uye yekunyungudusa yekugezera kuburikidza neyakaoma yemuviri, kemikari reaction, kuumbwa kweiyo inodzivirira corrosion zinc-alloy layer ye compact chimiro.Naizvozvo, galvanized simbi alloy layer uye layer ye pure zinc, simbi base musanganiswa inoita iyo corrosion kuramba kugona.

Zinc kemikari ine hupenyu hwepabonde yakakwirira kudarika iron, kana electrochemical corrosion ikaitika, iyo yekutanga iine zingi panzvimbo yesimbi, zinc oxide uye ine compact, iyo inogona kudzivirira kuwedzera oxidation.Kazhinji galvanized simbi ine yakanaka ngura kuramba, ngura kuvigwa simbi pombi inokamurwa kuva mhando mbiri yunifomu ngura uye localized ngura, localized ngura kazhinji inotongwa, ngozi ndiyo huru.Kuora kwesimbi muvhu electrochemical dissolution process inonyanya kukonzerwa nekuumbwa kwemaseru ekuora zvichiita kuti pipeline corrosion perforation.Dzvanya iyo corrosion cell anode uye cathode spacing size, asiwo gadzira simbi kuita micro-cell corrosion corrosion uye macro cell corrosion mapoka maviri.Electrochemical corrosion yekuvigwa pombi process, iron corrosion inhibition nzira kubva kwaunotanga kuita.Kana rusvingo rwepombi pamwe ne-anti-corrosion coating, loop resistance inogona kuwedzerwa, kuderedza kupisa kwezvino;kunze DC simba rekupa, kuitira kuti ivhu pombi zvichikonzera kukanganisa kwakashata, kuumbwa kwe cathodic kudzivirira anode inogona kusiyana inogona kubviswa kubva pamudzi kumisa muitiro we anode uye cathode kuenderera.Asi kana iyo anti-corrosion coating ichinge yakuvadzwa, simbi dzakafumurwa dzinosimudza ngura yenzvimbo.Nokudaro, anti-corrosion coating uye cathodic kuchengetedzwa kwakabatanidzwa kubvisa nzira iyi ndiyo tafura, ine mari uye inoshanda.