Enhanced self-lubricating copper-based composite material and preparation method and application thereof

A copper-based composite material and self-lubricating technology, which is applied in the field of reinforced copper-based composite materials and its preparation, can solve the problems of high cost, uneven material density, complicated process and equipment, etc., and achieve good mechanical and wear resistance, The process and equipment are simple and the effect of saving preparation cost
CN109136606AActive Publication Date: 2019-01-04SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Publication Date
2019-01-04

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Abstract

The invention relates to an enhanced self-lubricating copper-based composite material and a preparation method and application thereof. The preparation method comprises the steps that titanium powder,boron nitride powder, copper powder and / or copper-based alloy powder serve as raw materials and are uniformly mixed, and then self-propagating sintering is adopted to prepare precursor powder; the precursor powder is subjected to pressureless sintering or hot-pressing sintering to obtain the reinforced self-lubricating copper-based composite material. Compared with the prior art, the enhanced self-lubricating copper-based composite material with TiB2 / TiN as a binary reinforced phase and BN as a self-lubricating medium is provided, and the material has the high hardness and high abrasion resistance characteristics of TiB2 / TiN and the high heat conductivity characteristic of pure copper or copper-based alloy.
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Description

technical field

[0001] The present invention relates to a kind of reinforced self-lubricating copper-based composite material and its preparation method and application, in particular, relates to a TiB 2 / TiN is a binary reinforcement phase, a reinforced copper matrix composite material with BN as a self-lubricating medium, its preparation method and application. Background technique

[0002] Copper and its alloy materials have excellent electrical and thermal conductivity, and are usually used as friction parts, heat dissipation parts, and conductive parts in various mechanical and electrical systems. However, due to its low hardness, high density, and poor wear resistance under high temperature and high speed conditions, its application in high-performance automobiles, aircraft, high-speed trains, and advanced weapon systems is limited. Ceramic phase reinforced copper matrix composites (CMMCs) is a kind of composite material with comprehensive properties of metal and non-...

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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