A kind of corrosion-resistant and wear-resistant self-lubricating surface treatment method

Abstract

The invention discloses a corrosion-resisting wear-resisting self-lubricating surface treatment method. The method has the following specific steps that (1), reticular structure treatment is conducted, specifically, the part surface is processed to form an honeycomb concave-convex structure, and meanwhile a protruded peak of the honeycomb structure is inactivated; (2), corrosion-resisting wear-resisting treatment is conducted, specifically, a corrosion-resisting wear-resisting material is added to the part surface processed by the reticular structure to be resistant to corrosion and wearing; and (3), lubricating treatment is conducted, specifically, the part surface is lubricated through a lubricating material. According to the corrosion-resisting wear-resisting self-lubricating surface treatment method, the corrosion-resisting wear-resisting self-lubricating part surface can be manufactured, the overall processing method is environmentally friendly, low in energy consumption and simple in technological process, a corrosion-resisting wear-resisting self-lubricating layer similar to the honeycomb surface structure is formed, and thus the friction working condition of the high speed, the heavy load, the large contacting surface and inconvenience of lubricating-grease adding is improved.

Description

technical field [0001] The invention relates to a corrosion-resistant and wear-resistant self-lubricating surface treatment method, which belongs to the technical field of surface treatment. Background technique [0002] At present, for the surface treatment of friction pairs at home and abroad, composite coating, electroplating, and overall chemical heat treatment are generally used to form a wear-resistant layer, supplemented by a number of sink holes or grooves for the storage of lubricating media. Among them, the cost of composite coating is high and the process is complicated; the overall chemical heat treatment such as the oxide layer on the surface of QPQ has good self-lubricating effect, but its thermal conductivity is poor. When it forms a friction pair with the seal, the frictional temperature rise will easily lead to seal burning or accelerated aging. ; Electroplating is not conducive to environmental protection. Moreover, under high-speed, heavy-load, large cont...

AI Technical Summary

Problems solved by technology

[0004] 1. There are several oil storage holes, even if they are evenly distributed, they cannot be used on high-speed friction surfaces;

[0005] 2. The design of the oil guide groove and the oil inlet hole makes the lubrication of the parts depend on the regular addition of grease in the later stage, which is not suitable for working conditions where it is not convenient to add grease;

[0006] 3. The surface layer of the inner wall of the steel sleeve is QPQ oxide layer and molybdenum disulfide spray layer, which has poor thermal conductivity and is not conducive to heat dissipation of the friction pair;

[0007] 4. The depth of the QPQ oxide layer is a conventional depth, which cannot meet the working conditions of heavy load friction