Aluminum die casting processing using artificial methods to generate a layer of oxide film on the surface of aluminum and its alloy products and apply different colors to improve the wear resistance of aluminum
Service life and increase color and beauty. The basic process of oxidation coloring is aluminum surface treatment, oxidation, coloring and subsequent hydration sealing, organic coating and so on
The process of management.
Aluminum oxidation: the surface of aluminum under natural conditions to maintain a layer of 10 ~ 100 angstroms of oxide film, artificial oxide film is according to different purposes to control the thickness of the film
0.5 ~ 250 microns. The methods of artificial film formation include chemical oxidation and electrochemical oxidation.
Chemical oxidation: The aluminum or aluminum alloy after surface purification is chemically reacted in an oxidizing solution containing oxidants and active agents to form a layer of oxidation
Membrane. The function of the active agent is to partially dissolve the oxide film during the formation process, resulting in pores, so that the oxidation continues and the oxide film can be thickened.