Maganin oxidation na karafa shine samar da wani fim mai kariya daga oxidation a saman karafa ta hanyar mu'amala da iskar oxygen ko oxidants, wanda ke hana tsatsa ta karfe. Hanyoyin oxidation sun hada da oxidation na zafi, oxidation na alkaline, da oxidation na acidic.
Maganin oxidation na karafa shine samar da wani fim mai kariya daga oxidation a saman karafa ta hanyar mu'amala da iskar oxygen ko oxidants, wanda ke hana tsatsa ta karfe. Hanyoyin oxidation sun hada da oxidation na zafi, oxidation na alkaline, oxidation na acidic (ga karafa baƙi), oxidation na sinadarai, oxidation na anodic (ga karafa marasa ƙarfe), da sauransu.
A zafafa kayayyakin ƙarfe zuwa 600 ℃~650 ℃ ta amfani da hanyar iskar shaka ta thermal oxidation, sannan a yi musu magani da tururi mai zafi da kuma sinadaran rage zafi. Wata hanyar kuma ita ce a nutsar da kayayyakin ƙarfe a cikin gishirin ƙarfe na alkali mai narkewa a kimanin 300 ℃ don magani.
Lokacin amfani da hanyar hada sinadarin alkaline oxidation, a nutsar da sassan a cikin ruwan da aka shirya sannan a dumama su zuwa 135 ℃ zuwa 155 ℃. Tsawon lokacin maganin ya dogara da yawan sinadarin carbon da ke cikin sassan. Bayan an yi maganin hada sinadarin oxidation na sassan ƙarfe, a wanke su da ruwan sabulu mai ɗauke da 15g/L zuwa 20g/L a zafin 60 ℃ zuwa 80 ℃ na tsawon mintuna 2 zuwa 5. Sannan a wanke su da ruwan sanyi da ruwan zafi bi da bi sannan a busar da su ko a busar da su na tsawon mintuna 5 zuwa 10 (a zafin 80 ℃ zuwa 90 ℃).
Hanyar hada sinadarin acid 3 ta ƙunshi sanya sassan a cikin ruwan acid don magani. Idan aka kwatanta da hanyar hada sinadarin alkaline, hanyar hada sinadarin acid ta fi araha. Fim ɗin kariya da aka samar a saman ƙarfe bayan magani yana da juriyar tsatsa da ƙarfin injina fiye da siririn fim ɗin da aka samar bayan maganin hada sinadarin alkaline
Hanyar hada sinadarai ta dace da maganin hada sinadarai na karafa marasa ƙarfe kamar aluminum, jan ƙarfe, magnesium, da kuma ƙarfen da ke cikinsu. Hanyar sarrafa sinadaran ita ce a sanya sassan a cikin wani maganin da aka shirya, sannan bayan wani takamaiman amsawar hada sinadarai a wani zafin jiki na wani lokaci, sai a samar da wani fim mai kariya, wanda za a iya tsaftace shi a busar da shi.
Hanyar anodizing wata hanya ce ta oxidation na ƙarfe marasa ƙarfe. Tsarin amfani da sassan ƙarfe azaman anodes da hanyoyin electrolytic don samar da fina-finan oxide a saman su. Wannan nau'in fim ɗin oxide na iya aiki azaman fim ɗin passivation tsakanin fim ɗin ƙarfe da shafi, da kuma ƙara ƙarfin haɗin gwiwa tsakanin shafi da ƙarfe, rage shigar da danshi, don haka tsawaita rayuwar rufin. Ana amfani da shi sosai a ƙasan fenti.
Lokacin Saƙo: Disamba-16-2024
