Micro-arc oxidation is a surface treatment technology that generates arc discharge on the surface of metals such as aluminum, magnesium, titanium, and their alloys through a combination of electrolytes and electrical parameters to form a ceramic film layer mainly composed of base metal oxide. During the micro-arc oxidation process, the workpiece is placed in the electrolyte as an anode. Under the action of an external electric field, micro-arc discharge is generated on the surface, resulting in instantaneous high temperature and high pressure. This causes the surface material of the material to undergo a series of physical and chemical changes such as electrical breakdown, melting, chemical reaction, solidification, diffusion, and phase change, and finally forms a ceramic film layer with excellent performance on the surface of the base material.
This technology has broad application prospects in aerospace, machinery, electronics, decoration, and other fields. For example, in the aluminum alloy surface treatment industry, it is used for wear-resistant parts, heat-resistant surface treatment, electrical materials, and other applications. At Turnkey, the strength of aluminum alloy after micro-arc oxidation is several times that before treatment, and the corrosion resistance is also significantly improved.
