Inqubo yokwakheka kongqimba olunamanzi wediphu elishisayo yinqubo yokwenza ingxubevange ye-iron-zinc phakathi kwe-matrix yensimbi nongqimba oluhlanzekile lwezinc olungaphandle.Ingaphezulu le-workpiece yakha ungqimba lwe-iron-zinc alloy ngesikhathi sokushisa okushisayo, ukuze ungqimba lwensimbi ne-zinc oluhlanzekile luhlanganiswe kahle.Inqubo yocingo olukhulu oluyizinki ingachazwa kalula ngokuthi: lapho ucezu lwensimbi lucwiliswa esixazululweni se-zinc esincibilikisiwe, i-zinc yokuqala ne-α-iron (ephakathi nendawo) kwakhiwa ukuncibilika okuqinile esibonakalayo.Lena ikristalu eyakhiwe insimbi ye-matrix yensimbi encibilike nama-athomu e-zinc esimweni esiqinile.Ama-athomu amabili ensimbi ahlanganiswe namanye, futhi ukukhangana kwamandla adonsela phansi phakathi kwama-athomu kuncane kakhulu.
Ngakho-ke, lapho i-zinc ifinyelela ukugcwala ekuncibilikeni okuqinile, izakhi ezimbili ze-zinc ne-athomu yensimbi ziyahlakazeka, futhi ama-athomu e-zinc ahlakazeka ku-(noma afakwe) ku-matrix yensimbi afuduka ku-lattice ye-matrix futhi akhe kancane kancane. ingxubevange enensimbi, kuyilapho insimbi isakazwa oketshezini lwezinki oluncibilikisiwe yakha inhlanganisela ye-intermetallic FeZn13 ne-zinc bese ishona phansi ebhodweni elishisayo elinothayela, okungukuthi, i-zinc slag.Lapho i-workpiece isuswa kwisisombululo se-zinc leaching, kwakheka ubuso be-zinc layer ehlanzekile, okuyi-crystal ene-hexagonal, futhi okuqukethwe kwayo kwensimbi akukho ngaphezu kwe-0.003%.
I-hot dip galvanizing, eyaziwa nangokuthi i-hot dip galvanizing, iyindlela yokuthola isembozo sensimbi ngokucwilisa ilungu lensimbi engxubeni ye-zinc encibilikisiwe.Ngokuthuthuka okusheshayo kokudluliswa kwe-high-voltage, ezokuthutha kanye nokuxhumana, izidingo zokuvikela izingxenye zensimbi ziya ngokuya ziba phezulu, kanti nesidingo se-hot-dip galvanizing siyanda.Imvamisa ubukhulu bongqimba lukagesi lukagesi bungu-5 ~ 15μm, kanti ungqimba olukhulu locingo oluyizinsimbi ngokuvamile lungaphezu kuka-35μm, ngisho lufika ku-200μm.I-Hot dip galvanizing inekhono elihle lokumboza, ukunamathela okuminyene futhi akukho okuhlanganisiwe kwemvelo.
Isikhathi sokuthumela: 19-12-22