Surface micro-pit self-lubricating coating and preparation method thereof
A technology of self-lubricating coating and micro-pit, which is applied in coating, metal material coating process, etc., can solve the problems of anti-friction performance and structural wear of cladding layer, and achieve excellent lubricating performance, high bonding strength and good effect The effect of aging
Pending Publication Date: 2021-09-28
XIAN TECHNOLOGICAL UNIV
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Abstract
The invention discloses a surface micro-pit self-lubricating coating and a preparation method thereof. The self-lubricating coating comprises that a nickel-based coating is arranged on a base material surface in a laser cladding mode; a micro-pit texture is machined on the surface of the nickel-based coating through electric spark machining; and a solid lubricant and resin are mixed and then are filled into the micro-pit texture. According to the surface micro-pit self-lubricating coating and the preparation method thereof, three antifriction wear-resistant methods, namely the high hardness performance of the nickel-based coating, the antifriction performance of the surface micro-pit texture and the lubricating performance of the lubricant, are combined, so that the obtained coating has better acting time efficiency, the service life is also prolonged, and the coating has excellent lubricating performance, wear resistance, self-repairability and stability; and according to the structure, the surface friction resisting and antifriction performance is improved, meanwhile, surface self-lubrication is achieved, and the use requirements of parts under harsh working conditions are met.
Application Domain
Metallic material coating processes
Technology Topic
LubricationSurface friction +7
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PUM
Property | Measurement | Unit |
Surface roughness | 0.4 | µm |
Diameter | 200.0 | µm |
Width | 200.0 | µm |
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