The anodic oxidation process is a traditional technology of electrolytic oxidation to form an oxide film on the surface of metals and their alloys. The oxide film made by this technology has uniform color, corrosion resistance, strong bonding force and good biocompatibility. It is used in modern biomedicine. Fields and aerospace fields have been widely used.

The anodic oxidation process of spherical titanium alloy powder uses titanium as the anode and other metals such as stainless steel as the cathode. With the help of a certain electrolyte, the surface of spherical titanium alloy powder is oxidized through electrochemical reaction to form an oxide film. This layer of oxide film has very obvious effects on the reflection and refraction of light, and oxide films of different thicknesses will show different colors and are protective at the same time. Therefore, it is an ideal decorative layer and wear-resistant layer, which is widely used in construction. , Aviation, medicine and other fields.

Anodizing and coloring method for spherical titanium alloy powder

The anodic oxidation and coloring process of spherical titanium alloy powder is: degreasing (strong alkali degreasing agent) → water washing → primary pickling (hydrofluoric acid aqueous solution) → water washing → secondary pickling (hydrofluoric acid + hydrogen peroxide aqueous solution) )→Water washing→anodic oxidation (electrolysis at constant voltage in phosphoric acid aqueous solution)→water washing→sealing→drying.