A preparation method for uniformly inlaid diamond particles on the surface of ni-p coating

Abstract

The invention provides a preparation method for uniformly embedding diamond particles onto the surface of a Ni-P coating and belongs to the technical field of surface modification. According to the preparation method, a spring steel washer serves as a base body, Ni-P-micrometer diamond chemical composite plating treatment is conducted, and then thermal treatment at 120 DEG C-200 DEG C is conducted. According to the chemical composite plating, the surface of the spring steel washer base body is pre-plated with a layer of Ni-P coating firstly; then Ni-P-micrometer diamond composite plating is conducted on the pre-coating, and diamond is deposited on the coating; and finally the plating of the Ni-P coating is conducted continuously, the diamond embedded into the coating is deeply buried. In the final coating, the diamond is embedded into the Ni-P coating by 1 / 2-2 / 3 of the grain size, the rest of the diamond is exposed out of the surface of the coating, and the diamond particles are uniformly distributed on the surface of the coating. A horizontal autoroatation rotator hanging piece manner is adopted, the problem that the diamond is difficult to uniformly distribute due to the gravity influence is overcome, the purpose that the two surfaces of the spring steel washer are uniformly plated with the diamond particles at the same time is achieved, the plating time is shortened, and meanwhile the phenomenon that the diamond particles on different surfaces in different positions of the coating are nonuniformly distributed is eliminated.

Description

technical field [0001] The invention relates to a preparation method for uniformly inlaid diamond particles on the surface of a Ni-P coating, belonging to the technical field of surface modification. Background technique [0002] The concept of lightweight engines originated in motorsports. The reduction in the weight of a car can lead to better handling. Due to the light weight, the power output by the engine can generate higher acceleration, better starting acceleration performance, shorter braking distance, and improved safety. The lightweight design of the engine requires the removal of redundant parts, reducing the overlap of parts, and reducing the weight of parts, which makes the internal structure of the engine more compact, and the diameter of the camshaft is also smaller. In order to improve the bearing capacity of the engine bolts during power transmission , which requires sufficient friction on the contact surface of the parts. Plating Ni-P-micron diamond chemi...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem that the diamonds at the end of the coating fall off due to the small inlay depth when the Ni-P-micron diamond coating is coated on the surface of the spring steel gasket by the two-step method

At the same time, a horizontal autorotation rotator autorotation device is installed in the preparation process, which solves the problem that the two surfaces cannot be evenly coated with diamond at the same time, and provides a production method for the two surfaces of the spring steel gasket to be coated with diamond at the same time

Images