Surface treatment of aluminum motor housings refers to a process that artificially forms a surface layer with distinct mechanical, physical, and chemical properties from the base material on its surface. The purpose of surface treatment is to meet the product requirements for corrosion resistance, wear resistance, decoration, or other specialized functional needs. Common surface treatment methods for aluminum motor housings include mechanical polishing, chemical treatment, surface heat treatment, and surface coating. Surface treatment covers processes such as surface cleaning, preparation, deburring, degreasing, and descaling.

Specific details of surface cleaning for aluminum motor housings:

1. If the surface of the aluminum motor housing has sand particles and rough areas, manual or mechanical cleaning can be applied to make the surface meet the acceptance standards.

2. Protrusions caused by burrs, excess metal, mold expansion, and mold misalignment on the motor housing shall be ground smooth. The chipping amount shall be controlled to prevent defects on the aluminum motor housing.

3. When grinding the motor housing, select grinding wheels based on the housing material. Grinding wheels must be free of cracks, firmly installed, and equipped with protective guards.

4. Grind all non-machined surfaces smooth, including parting lines at various positions and casting protrusions in the inner cavity.

5. Cast holes shall be fully opened, and the exposed parts shall be ground to a smooth finish.

6. Sand inclusions on the surface of the motor housing shall be completely removed.