A kind of preparation method of copper-based composite material

A technology of copper-based composite materials and composite powders, which is applied in the field of composite materials, can solve problems such as insufficient density of bulk materials, difficult-to-wet interfacial reactions, and influence on thermal conductivity and electrical conductivity of materials, so as to improve the overall comprehensive performance and scope of application Wide and reliable operation
CN111647766BActive Publication Date: 2021-05-11KUNMING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2021-05-11

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Abstract

The invention provides a preparation method of a copper-based composite material. After carbon nanomaterials are acidified and freeze-dried, they are uniformly dispersed in an aqueous solution and ultrasonically stirred to obtain a carbon nanomaterial dispersion; the carbon nanomaterial dispersion is added to a tungsten salt The mixed solution is obtained in the solution, and after ultrasonic atomization, it is passed into the spray pyrolysis furnace for decomposition and calcination to obtain the coated WO 3 The NCM composite powder of NCM composite powder is obtained by reducing the NCM composite powder coated with W, and mixed with copper or copper alloy after vacuum smelting for die-casting to prepare a copper-based composite material; this method solves the problem of the high porosity of traditional powder metallurgy materials. It is difficult to add and uniformly disperse reinforcements in the die-casting process. Taking the strengths of the two to complement the weaknesses of the two, the prepared copper-based composite material has the characteristics of high density, good electrical conductivity, and outstanding high-temperature stability, and is suitable for Industrialized mass production preparation.
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Description

Technical field

[0001] The present invention relates to a method of preparing a copper-based composite, belonging to the field of composite.Background technique

[0002] Carbon nanomaterial / copper-based composites integrated copper good conductive, thermal conductivity, and high-grade strength and specific modulus, low thermal expansion coefficients, and high temperature stability and high temperature stability, making it good A series of advantages such as conductivity, high temperature resistance, high temperature resistance, arc ablation resistance, fusion welding and anti-aging, as a new type of functional material has been widely used as electronic component material, contact material , Heat exchange material, sliding material, lead frame material, etc., for manufacturing a brush, shaft tile, contact, slider, rail transit, electrical arch slide, integrated circuit heat dissipation plate, and rocket engine parts.

[0003] At present, the powder metallurgy method and casting method in in...

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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