Metal self-lubricating composite material

A composite material and self-lubricating layer technology, which is applied in the field of bimetallic self-lubricating composite materials and its preparation, can solve the problems of wear-resistant materials such as reduced hardness, large sliding friction resistance, and reduced mechanical properties, so as to reduce stress Effects of concentration, increase of contact area, and increase of surface area
CN1367269AInactive Publication Date: 2002-09-04LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2002-09-04
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The present invention discloses a metal self-lubricaitng compound material and its preparation method. Its preparation process includes the following steps: uniformly mixing tin bronze, copper-platedgraphite, tin powder and lead oxide powder according to a certain proportion, then sintering a layer of self-lubricating layer on the copper-plated steel back. The said material is applicable to high-load long-life use in aqueous vapour, water and gas at -200-400 deg.C, and mainly is used for making bearing material in the dry friction or the low-viscosity fluid of chemical solution, etc.
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Description

[0001] Field

[0002] The invention describes a bimetal self-lubricating composite material with low friction, high wear resistance and high mechanical strength, which is suitable for high load, long life, water vapor, water, gas and high temperature of -200~400 โ„ƒ and its its preparation method. This type of material is mainly used for dry friction or bearing materials used in low-viscosity fluids such as chemical solutions. Background technique

[0003] Graphite-copper matrix composites produced by powder metallurgy are important bearing materials because of their excellent anti-friction and wear resistance, high temperature resistance, oxidation resistance and corrosion resistance. However, due to the sliding parts made of it, when the graphite content is low, under the conditions of dry friction and high temperature, the sliding friction resistance is large, the temperature rises, the wear is severe, and even the shaft is stuck, etc., even under the condition of water vapo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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