I-hot dip galvanizing iyindlela esetshenziswa kakhulu yokuvikela insimbi ekugqwaleni. Icwilisa insimbi ekugezeni kwe-zinc encibilikisiwe, yakha ungqimba oluvikelayo ebusweni bensimbi. Le nqubo ivame ukubizwa ngokuthi aibhodwe zincngoba kuhilela ukucwilisa insimbi ebhodweni le-zinc encibilikisiwe. Insimbi ewumphumela ewuthayela yaziwa ngokuqina kwayo kanye nokumelana nokugqwala, okuyenza ibe ukukhetha okudumile ezinhlobonhlobo zezinhlelo zokusebenza, kusukela ekwakhiweni kuya ekukhiqizeni izimoto.
Umbuzo ojwayelekile ohambisana nawoi-hot-dip galvanizingukuthi i-zinc coating izogqwala yini insimbi enama-galvanized ngokuhamba kwesikhathi. Ukuxazulula le nkinga, kubalulekile ukuqonda izakhiwo ze-zinc nokuthi zixhumana kanjani ne-substrate yensimbi.
I-Zinc iyinsimbi esebenza kakhulu, lapho isetshenziswa ensimbii-hot-dip galvanizing, yakha uchungechunge lwezingqimba ze-zinc-iron alloy ebusweni bensimbi. Lezi zingqimba zinikeza umgoqo ongokoqobo, ovikela insimbi engaphansi ezintweni ezigqwalayo njengomswakama nomoya-mpilo. Ukwengeza, ukugqoka kwe-zinc kusebenza njenge-anode yomhlatshelo, okusho ukuthi uma i-coating yonakalisiwe, i-zinc coating izogqwala ngokukhetha insimbi, ivikele insimbi ekugqwaleni.
Ezimweni eziningi, ukumbozwa kwe-zinc ensimbi ethathiwe kunikeza ukuvikelwa kokugqwala kwesikhathi eside ngisho nasezindaweni ezinzima. Kodwa-ke, kwezinye izimo, ukunamathela kukathayela kungase kube sengozini, okuholela ekugqwaleni okungenzeka kwensimbi engaphansi. Esinye isimo esinjalo ukuchayeka ezindaweni ezine-acidic noma ezine-alkali, okusheshisa ukugqwala kwe-zinc enamathela futhi kuphazamisa izakhiwo zayo zokuzivikela. Ukwengeza, ukuchayeka isikhathi eside emazingeni okushisa aphakeme kungabangela ukumbozwa kwe-zinc ukuthi konakale, okungase kubangele ukugqwala kwe-substrate yensimbi.
Kubalulekile ukuqaphela ukuthi ngenkathi enamathela zinc oninsimbiiphumelela kakhulu ekuvikeleni insimbi ekugqwaleni, ayivikelekile ekulimaleni. Ukulimala kwemishini, okufana nokuklwebheka noma ama-gouges, kungalimaza ubuqotho be-zinc coating futhi kubeke insimbi engaphansi engozini yokugqwala. Ngakho-ke, ukuphathwa ngendlela efanele kanye nokugcinwa kwemikhiqizo yensimbi ethathiwe kubalulekile ukuze kuqinisekiswe ukumelana nokugqwala kwayo isikhathi eside.
Ekuphetheni,idiphu elishisayo livuthela amanzi, eyaziwa nangokuthi ibhodwe le-zinc, iyindlela ephumelelayo yokuvikela insimbi ekugqwaleni.I-galvanizingyakha ungqimba oluqinile oluvikelayo endaweni yensimbi, enikeza ukumelana nokugqwala kwesikhathi eside ezindaweni eziningi. Nakuba izimbotshana ezifakwe uthayela zingalimala ngaphansi kwezimo ezithile, ukunakekelwa okufanele nokuphathwa kwemikhiqizo yensimbi eyakhiwe ngamapulangwe kusiza ukuqinisekisa ukuthi iqhubeka ukumelana nokugqwala. Sekukonke, insimbi yama-galvanized ihlala iyisinqumo esinokwethenjelwa futhi esihlala isikhathi eside ezinhlobonhlobo zezicelo ngenxa yezakhiwo zokuvikela ze-zinc coating.
Isikhathi sokuthumela: Aug-27-2024