Ucingo olufakwe igalvanizedekusebenziseni ixesha lexesha, umphezulu woluhlu lwezinki uya kuxobula, ukuwa, ngoko kuchaphazela ubuhle becingo elibhenkiweyo, kuphela ukuvumela umphezulu womgca we-galvanized zonke zisuswe, emva kokukhazimliswa, ukugquma kwakhona, ngoko. ukuze kuqinisekiswe ukuba ucingo olufakwe igalvanized lusebenza ngakumbi ixesha elide.
Okokuqala, imfuno ye-sodium hydroxide 200 ~ 300g / L ye-sodium nitrite 100 ~ 200g / L amanzi okongeza kwi-1L ukuze ukwazi ukususa iindawo ezifunwa kakhulu kunye nocingo lwensimbi kunye nokunye.Ubushushu bonyango yi-100 ℃, kwaye ixesha lide lihlanjululwe.
Ukukhuselwa kwe-zinc coating kwi-matrix yensimbi kunemigaqo emibini: kwelinye icala, nangona i-zinc isebenzayo kwaye ilula i-oxidize kunentsimbi, kodwa ifilimu yayo ye-oxide ayikhululekile kwaye ihlangene njenge-iron oxide.Umaleko oshinyeneyo owenziwe kumphezulu unqanda ukuqhubela phambili kwe-oxidation ye-zinc ngaphakathi.Ngokukodwa emva kokugqithiswa kweyenziwe igalatiUmaleko, umphezulu womgangatho we-oxide utyebile kwaye uxinene, ngokwawo unothintelo oluphezulu lwe-oxidation.
Kwelinye icala, xa umphezulu weyenziwe igalatiumaleko wonakele, uveza i-matrix yentsimbi yangaphakathi, ngenxa yokuba i-zinc isebenza ngakumbi kunentsimbi, ngeli xesha, i-zinc ithwala indima yokubingelela i-zinc anode, i-zinc iya kuba ne-oxidized phambi kwentsimbi, ukwenzela ukukhusela i-iron layer ayiyi konakala.
Ixesha lokuthumela: 18-03-22