Process of surface treating aluminum articles

摘要

A process of surface treating an aluminum or aluminum alloy article includes the steps of: (1) forming an oxide layer on the aluminum or aluminum alloy article by anodizing; (2) sealing the oxide layer of the article; and (3) forming a protective film on the sealed oxide layer of the article. The process may further comprise a step of coloring the oxide layer of the aluminum or aluminum alloy article between said steps (1) and (2). The aluminum or aluminum alloy article is corrosion-resistant and resistant to damage by contact, by virtue of the protective film formed on the sealed oxide layer in said step (3). In addition, the protective film can also give the aluminum or aluminum alloy article a long-lasting attractive appearance by preventing a colored sealed oxide layer of the aluminum or aluminum alloy article from fading.