Indlela yokwelapha engaphezulu ebandakanya ukunamathisela ungqimba lwezinc phezu kwezinto zensimbi eyingxubevange ngezinjongo zobuhle nokugqwala. Ungqimba lwezinc olungaphezulu luyingqimba yokuvikela ye-electrochemical engavimbela ukugqwala kwensimbi. Izindlela eziyinhloko ezisetshenziswayo yi-hot dip galvanizing kanye ne-electro galvanizing.
Izinto ezisetshenziswayo:
Ngenxa yokuncika kwenqubo yokufaka ama-galvanizing kubuchwepheshe bokuhlanganiswa kwe-metallurgical, ifaneleka kuphela ukwelashwa okungaphezulu kwensimbi nensimbi.
Izindleko zenqubo: Azikho izindleko zesikhunta, umjikelezo omfushane/izindleko zabasebenzi ezimaphakathi, njengoba ikhwalithi yangaphezulu ye-workpiece incike kakhulu ekuphathweni kwendawo okwenziwa ngesandla ngaphambi kokuvuthwa.
Umthelela wezemvelo: Ngenxa yenqubo yokwenza uthayela okwandisa impilo yesevisi yezingxenye zensimbi ngeminyaka engu-40-100, ivimbela ngokuphumelelayo ukugqwala nokubola kwe-workpiece, ngaleyo ndlela ibe nomthelela omuhle ekuvikeleni imvelo. Ngaphezu kwalokho, ama-workpieces angama-galvanized angabuyiselwa ethangini lokufaka uthayela ngemva kokuphelelwa yisikhathi kwenkonzo yabo, futhi ukusetshenziswa okuphindaphindiwe kwe-zinc ewuketshezi ngeke kukhiphe imfucuza yamakhemikhali noma ebonakalayo.
Inqubo yokusebenzisa i-electrolysis ukuze inamathisele ungqimba lwefilimu yensimbi ebusweni bengxenye, ngaleyo ndlela ivimbele i-oxidation yensimbi, ithuthukise ukumelana nokugqokwa, ukuqhutshwa kwe-conductivity, i-reflection, ukumelana nokugqwala, nokuthuthukisa ubuhle bobuhle. Izinhlamvu zemali eziningi zinezingqimba zazo zangaphandle ezifakwe i-electroplated.
Izinto ezisetshenziswayo:
1. Izinsimbi eziningi zingafakwa ku-electroplated, kodwa izinsimbi ezahlukene zinamazinga ahlukene okuhlanzeka nokusebenza kahle kwe-electroplating. Okuvame kakhulu i-tin, i-chromium, i-nickel, isiliva, igolide, ne-rhodium.
Ipulasitiki esetshenziswa kakhulu i-electroplating yi-ABS.
3. Insimbi ye-nickel akufanele isetshenziselwe imikhiqizo ye-electroplating ethinta isikhumba, njengoba i-nickel iyacasula futhi inobuthi esikhumbeni.
Izindleko zenqubo: Azikho izindleko zesikhunta, kodwa ukulungiswa kuyadingeka ukulungisa izingxenye. Izindleko zesikhathi zincike kuzinga lokushisa kanye nohlobo lwensimbi/izindleko zabasebenzi (ukuphakama okumaphakathi), kuye ngohlobo oluthile lwezingxenye ze-electroplated. Isibonelo, i-electroplating yesiliva nobucwebe idinga izisebenzi ezinekhono eliphezulu ukuze zisebenze, njengoba kudinga izidingo eziphakeme zokubukeka nokuqina.
Umthelela wendawo: Inani elikhulu lezinto ezinobuthi lizosetshenziswa enqubweni ye-electroplating, ngakho-ke ukuphambukisa okuwuchwepheshe kanye nokukhipha kuyadingeka ukuze kuqinisekiswe umthelela omncane kwezemvelo.