Vehicle hub surface treatment process

Abstract

The invention discloses a vehicle hub surface treatment process, and relates to the field of surface treatment of vehicle parts. The vehicle hub surface treatment process comprises ten process steps of (1) oil stain removal-(2) alkali washing-(3) water washing-(4) electrolytic rough polishing-(5) electrolytic finish polishing-(6) acid leaching-(7) water washing-(8) nickel plating-(9) water washing and drying-(10) paint spraying; firstly, oil stains are thoroughly removed to lay excellent foundation for subsequent machining process; in addition, the acid leaching treatment is performed after the electrolytic rough polishing and the electrolytic finish polishing, so that the surface of a vehicle hub is cleaned smoothly to prepare for subsequent nickel plating; then, the water washing and the drying are performed; finally, the paint spraying and the curing are performed, so that the surface of the vehicle hub is smooth, a corrosion resistant layer is formed, the corrosion resistance is improved, and the service life of the vehicle hub is prolonged; and the vehicle hub surface treatment process, provided by the invention, is simple and reasonable in process steps, enables the surface of the vehicle hub to become smooth, is strong in corrosion resistance, and prolongs the service life.

Description

technical field [0001] The invention relates to the field of surface treatment of automobile parts, in particular to a surface treatment process of an automobile wheel hub. Background technique [0002] In the 20th century, with the development of society, the demand for automobiles is also increasing. Wheels are an important component of automobiles. The performance of wheels is directly related to the performance of the entire automobile. [0003] However, the surface of the automobile wheel in the prior art is not smooth enough, the corrosion resistance is poor, the service life is short, and the surface treatment process of the automobile wheel is relatively complicated, which increases the production cost. [0004] In view of the above problems, many improvements have been made in the prior art. For example, the Chinese Publication No. CN104746074A discloses a surface treatment method for a magnesium alloy wheel hub, which includes grinding the surface of a magnesium al...

AI Technical Summary

Problems solved by technology

In the present invention, after the aluminum alloy wheel hub is mechanically polished and the oxide layer is removed, an electrolytic solution with a higher acid concentration is used to perform the first electrolytic polishing, and rough polishing is performed on the part with a larger roughness; then an electrolytic solution with a lower acid concentration is used The electrolytic solution is used for fine polishing. Although this invention can make the surface of the aluminum alloy wheel hub smooth, it cannot improve the corrosion resistance of the wheel hub.