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Takaitaccen gabatarwa

Anodized aluminum ko aluminum gami kayayyakin da aka sanya a cikin electrolyte bayani ga galvanization magani, da kuma aiwatar da samar da aluminum oxide fim a kan surface da electrolysis ake kira anodized magani na aluminum da aluminum gami.Bayan anodic hadawan abu da iskar shaka magani, aluminum surface iya samar da dama microns - daruruwan microns na oxide film.Compared da na halitta oxide fim na aluminum gami, ta lalata juriya, sa juriya da kuma ado ne a fili inganta da inganta.

Ka'idar Bacial

Ka'idar anodic hadawan abu da iskar shaka na aluminum shine ainihin ka'idar hydroelectrolysis. Lokacin da wutar lantarki ta wuce, abin da ke biyo baya yana faruwa:
A cathode, ana fitar da H2 kamar haka: 2H + + 2e → H2
A anode, 4OH-4E → 2H2O + O2, iskar oxygen precipitated ba kawai kwayoyin oxygen (O2), amma atomic oxygen (O) da ionic oxygen (O-2), yawanci bayyana a matsayin kwayoyin oxygen a cikin dauki.
A matsayin anode, aluminum yana oxidized ta hanyar hazo oxygen akan shi don samar da fim din Al2O3 ba tare da ruwa ba: 2AI + 3[O] = AI2O3 + 1675.7kj Ya kamata a nuna cewa ba dukkanin iskar oxygen da aka samar ba suna hulɗa da aluminum, amma wasu na shi yana hakowa a cikin hanyar iskar gas.
Anodic hadawan abu da iskar shaka ya dade da aka yi amfani da ko'ina a masana'antu, kamaraluminum CNC machining sassa.Bayan anodized, aluminum CNC machining sassa na iya samun ban mamaki bayyanar da mai kyau antioxidant iya aiki.

Akwai hanyoyi da yawa don sanya sunaye daban-daban, waɗanda za a iya taƙaita su kamar haka:
Dangane da nau'in na yanzu, ana iya raba shi zuwa anodizing na yanzu kai tsaye, alternating current anodizing, da pulsed current anodizing, wanda zai iya rage lokacin samarwa don isa ga kauri da ake buƙata, fim ɗin Layer yana da kauri da uniform kuma mai yawa, da juriya na lalata. an inganta sosai.
A cewar electrolyte: sulfuric acid, oxalic acid, chromic acid, gauraye acid da Organic sulfonic acid bayani na halitta canza launin anodic hadawan abu da iskar shaka.
Dangane da kaddarorin fim din, ana iya raba shi zuwa fina-finai na yau da kullun, fim mai wuya (fim mai kauri), fim ɗin ain, Layer gyare-gyare mai haske da shingen shinge na aikin semiconductor.
Hanyar anodizing na kai tsaye na electrosulfuric acid shine mafi mashahuri, saboda ya dace da anodizing aluminum da mafi yawan aluminum alloys.The fim Layer ne lokacin farin ciki, da wuya da kuma lalacewa-resistant, kuma mafi kyau lalata juriya za a iya samu bayan sealing rami.The Layer fim ba shi da launi kuma mai haske, tare da ƙarfin adsorption mai ƙarfi da sauƙin canza launi.Ƙarancin ƙarfin lantarki, ƙarancin amfani da wutar lantarki;Tsarin baya buƙatar canza yanayin wutar lantarki, wanda ke ba da gudummawa ga ci gaba da samarwa da sarrafa kayan aiki mai amfani; Sulfuric acid ba shi da lahani. fiye da chromic acid, wadata mai fadi, fa'idodin farashi maras tsada.