With the development of society, people's demand for automobiles is increasing. Automobile wheels are an important part of automobiles, and the performance of the wheels is directly related to the performance of the vehicle.

The surface treatment method of magnesium alloy grinding wheel includes grinding the surface of the workpiece of the magnesium alloy grinding wheel to remove oil stains, ultrasonic cleaning after anode electrophoresis; then micro-arc oxidation treatment, then spraying, cleaning, drying, and then nickel plating, washing, and drying; then cathode electrophoresis, washing, and curing; then the intermediate coating is dried by acrylic resin, the topcoat is sprayed and cured.

The method first performs electrophoresis treatment on the workpiece, forms a layer of electrophoretic paint film on the surface of the workpiece, forms a uniform, smooth, and strong adhesion paint film on all parts of therim, and then forms a nickel-plated micro-arc oxide layer on the surface of the paint film, which is cured by cathode electrophoresis, intermediate paint and spraying topcoat.

The surface of aluminum alloy wheels is mechanically polished, the surface is alkaline etched, and the surface of aluminum alloy wheels is roughly polished with an electrolyte with a high acid concentration; the aluminum alloy wheels are finely polished with an electrolyte with a low acid concentration.