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Intshayelelo emfutshane

Aluminiyam anodized okanye iimveliso aluminiyam ingxubevange ibekwe kwisisombululo electrolyte unyango galvanization, kunye nenkqubo yokwenza ifilimu oxide aluminium phezu komhlaba ngokuthi electrolysis ibizwa ngokuba anodized unyango aluminiyam kunye nengxubevange aluminiyam.Emva kokunyangwa kwe-anodic oxidation, i-aluminium surface inokuvelisa i-microns ezininzi - amakhulu e-microns yefilimu ye-oxide.Xa kuthelekiswa nefilimu yendalo ye-oxide ye-aluminium alloy, ukuxhathisa ukubola, ukumelana nokugqoka kunye nokuhlobisa ngokucacileyo kuphuculwe kwaye kuphuculwe.

Umgaqo osisiseko

Umgaqo we-anodic oxidation ye-aluminiyam ngumgaqo we-hydroelectrolysis.Xa umbane wombane ugqithiswa, le mpendulo ilandelayo iyenzeka:
Kwi-cathode, i-H2 ikhutshwa ngolu hlobo lulandelayo: 2H + + 2e → H2
Kwi-anode, i-4OH-4E → 2H2O + O2, i-oksijini ekhutshiweyo ayikho nje i-oxygen ye-molecular (O2), kodwa kunye ne-atomic oxygen (O) kunye ne-ionic oxygen (O-2), ngokuqhelekileyo ibonakaliswe njenge-oksijini ye-molecular kwi-reaction.
Njenge-anode, i-aluminium i-oxidized yi-oxygen precipitation kuyo ukuze yenze ifilimu ye-Al2O3 ngaphandle kwamanzi: 2AI + 3[O] = AI2O3 + 1675.7kj Kufuneka kucaciswe ukuba akuyiyo yonke i-oksijini eveliswayo isebenzisana ne-aluminium, kodwa ezinye Imvula yayo ikwimo yerhasi.
I-Anodic oxidation kudala isetyenziswa ngokubanzi kwishishini, njengaleAluminiyam CNC iindawo machining.Emva kwe-anodized, iinxalenye ze-aluminium CNC zomatshini zinokufumana inkangeleko emangalisayo kunye nomthamo olungileyo we-antioxidant.

Zininzi iindlela zokuleyibhela amagama ahlukeneyo, anokushwankathelwa ngolu hlobo lulandelayo:
Ngokohlobo lwangoku, lunokwahlulwa lube yi-anodizing yangoku, i-anodizing etshintshanayo yangoku, kunye ne-pulsed current anodizing, enokunciphisa ixesha lokuvelisa ukufikelela kubukhulu obufunekayo, umaleko wefilimu ungqindilili kwaye ufana kwaye uxinene, kunye nokumelana nomhlwa. iphuculwe kakhulu.
Ngokutsho kwe-electrolyte: i-asidi ye-sulfuric, i-oxalic acid, i-asidi ye-chromic, i-asidi edibeneyo kunye nesisombululo se-organic sulfonic sombala wendalo we-anodic oxidation.
Ngokweepropati zefilimu, inokwahlulwa ibe yifilimu eqhelekileyo, ifilimu enzima (ifilimu engqingqwa), ifilimu ye-porcelain, umaleko wokuguqulwa oqaqambileyo kunye noluhlu lwesithintelo sesenzo se-semiconductor.
Indlela ye-anodizing ye-electrosulfuric acid yangoku eyona nto ithandwa kakhulu, kuba ifanelekile kwi-anodizing aluminium kunye ne-alloys ezininzi ze-aluminium.I-film layer inzima, inzima kwaye ayigugi, kwaye ukuxhathisa okungcono kokuhlwa kunokufumaneka emva kokutywinwa komngxuma. Umaleko wefilimu awunambala kwaye awubonakali, unamandla obhengezo owomeleleyo kunye nombala olula. Umbane wokucutshungulwa ophantsi, ukusetyenziswa kwamandla amancinci; inkqubo ayifuni ukutshintsha umjikelo wombane, onceda ukuvelisa okuqhubekayo kunye nokusebenza okuzenzekelayo; kune chromic acid, unikezelo olubanzi, inzuzo yexabiso eliphantsi.