Oxidation Coloring Of Aluminum

A layer of oxide film (AlO) is formed on the surface of aluminum and its alloy products by artificial method and different colors are applied to improve the wear resistance of aluminum and extend the service life
And increase the color beautiful. The basic process of oxidation coloring is aluminum surface treatment, oxidation, coloring and subsequent hydration sealing, organic coating and other processing processes.
The surface of aluminum oxide maintains a layer of 10 ~ 100 angstroms of oxide film under natural conditions, and the artificial oxide film is controlled according to different purposes
0.5 ~ 250 microns. The methods of artificial film generation include chemical oxidation and electrochemical oxidation (i.e. anodic oxidation).