High temperature self compensatiojn lubrication wear resistance material and its preparing method

A wear-resistant material and self-compensating technology, which is applied in the direction of engine lubrication, mechanical equipment, ceramic products, etc., can solve the problem that the high-temperature volatility of liquid medium cannot meet the requirements of extreme high-temperature work
CN1275727CInactive Publication Date: 2006-09-20WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2006-09-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The high temperature self-compensating lubricating wear resistant material includes substrate and solid lubricating particle compounded to the substrate. The substrate is mixed alloy, ceramic and RE element sintered body with sweat gland type structural micropores. The sweat gland type structural micropore has diameter of 0.05-8 micron and consists of internal micropore and penetrating micropore to the surface of the substrate, and the solid lubricating particle is compounded into the sweat gland type structural micropore. The present invention ensures the formation of wear resistant hard phase in the substrate material, and the composite material has its lubricant inside the substrate driven by the friction heat to diffuse toward the friction surface via the sweat gland micropores to realize the self compensating lubrication of the wear resistant material at high temperature.
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Description

technical field

[0001] The invention relates to a self-lubricating wear-resistant material and a preparation method thereof, in particular to a self-compensating lubricating wear-resistant material used in a high-temperature environment and a preparation method thereof. Background technique

[0002] The traditional design concept of high-temperature self-lubricating wear-resistant materials is to add solid lubricant as a mixed component to the wear-resistant materials to form self-lubricating composite materials. Due to the mutual restriction of the lubricating phase and the hard phase in the material; when adding lubricating components to improve the lubricity of the material, the lubricating phase reduces the mechanical properties of the material and the wear resistance of the hard phase; thus restricting the respective elements in the material Functional play.

[0003] In addition, due to the porosity in the metal sintered body, the impregnation method is used to impregn...

Claims

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