Placa de aluminiu anodizat trebuie să plaseze placa de aluminiu în electrolitul corespunzător (precum acidul sulfuric, acid cromic, acid oxalic, etc.) ca anod, și efectuează electroliza în condiții specifice și un curent aplicat. Placa de aluminiu a anodului este oxidată, iar la suprafață se formează un strat subțire de oxid de aluminiu, a cărui grosime este 5-20 microni, iar filmul anodizat dur poate ajunge 60-200 microni.
The anodized aluminum plate improves its hardness and wear resistance, which can reach 250-500 kg/mm2, rezistență bună la căldură, the melting point of the hard anodized film is as high as 2320K, izolare excelenta, and the breakdown voltage is as high as 2000V, enhanced corrosion resistance, at ω=0. No corrosion after thousands of hours in NaCl salt spray. There are a large number of micropores in the thin layer of oxide film, care poate absorbi diverși lubrifianți, and is suitable for manufacturing engine cylinders or other wear-resistant parts; the film micropores have strong adsorption capacity and can be colored into various beautiful and bright colors.
Metale neferoase sau aliajele acestora (precum aluminiul, magneziu și aliajele acestora, etc.) poate fi anodizat.
Chemical alumina plate is the treatment process in which part of the base metal of the aluminum plate reacts in a weakly alkaline or weakly acidic solution to thicken the natural oxide film on the surface or produce other passivation films. The commonly used chemical oxide film is chromic acid film and phosphoric acid membranes, which are both thin and absorbent, and can be colored and sealed.