Annealing daga waje yana nufin cewa recrystallization annealing na zafi ko sanyi birgima karfe farantin ne da za'ayi a cikin kasa type annealing makera ko murfin irin annealing makera kafin shigar da zafi plating waya line, ta yadda babu wani annealing tsari a cikin galvanized. layi.Dole ne farantin karfe ya kula da tsaftataccen saman ƙarfe mai tsafta, ba tare da oxides da sauran datti ba, kafin tsoma galvanizing mai zafi.A cikin wannan hanya, ana fara cire murfin oxide ɗin da aka toshe da farko ta hanyar tsinke, sannan a shafa shi da wani Layer na zinc chloride ko cakuda ammonium chloride da sinadarin zinc chloride don kariya, ta yadda za a hana farantin daga sake yin oxidized.
Wannan hanya ita ce gabaɗaya amfani da farantin da aka yi birgima mai zafi a matsayin ɗanyen abu, farantin karfen da aka rufe ana fara aika shi zuwa taron bitar, tare da sulfuric acid ko hydrochloric acid don cire saman takardar iskar oxygen hot galvanizing hanya.Bayan an dasa, farantin karfe nan da nan ya shiga cikin tanki don jiƙa kuma yana jira galvanized, wanda zai iya hana sake sakewa na farantin karfe.Bayan pickling, tsaftace ruwa, matsi bushe, bushewa, a cikin tukunyar zinc, an kiyaye zafin jiki a 445-465 ℃.
Hot tsoma galvanizing sai a shafa mai da chromed.Ingantacciyar takarda mai zafi-galvanized da aka samar ta wannan hanyar ana haɓaka sosai idan aka kwatanta da ta hanyar hanyar galvanizing rigar.Yana da daraja kawai don ƙananan samarwa.Ci gaba da galvanizing samar line hada da jerin pretreatment hanyoyin, kamar alkali degreasing, hydrochloric acid pickling, ruwa wanka, sauran ƙarfi shafi, bushewa, da dai sauransu, da kuma asali farantin bukatar da za a annealed a murfi tanderu kafin shiga galvanizing line.
Lokacin aikawa: 24-03-23