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Dispersion strengthening copper-based composite material for spot-welding electrode and preparation method of dispersion strengthening copper-based composite material

A dispersion-strengthened copper and composite material technology, applied in the field of dispersion-strengthened copper-based composite materials, can solve the problems of low electrical conductivity, softening temperature, electrical conductivity and softening resistance, etc., and achieve high arc resistance, high strength, high efficiency effect

Inactive Publication Date: 2015-11-11
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of the spot welding electrode material is lower than the standard of microelectronic device spot welding electrode material conductivity ≥ 85% IACS, and the softening temperature, conductivity and softening resistance still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The dispersion-strengthened copper-based composite material for spot welding electrodes in this embodiment consists of the following components in mass percent: TiC8%, Ce0.7%, La 2 o 3 0.8%, Al 2 o 3 0.1%, the balance is Cu. The composite material is prepared with reference to the method described in the background technology, the difference is only that Ce powder and La powder are added in step (1). 2 o 3 powder.

Embodiment 2

[0037] The dispersion-strengthened copper-based composite material for spot welding electrodes in this embodiment consists of the following components in mass percent: TiC5%, Ce0.5%, La 2 o 3 0.5%, Al 2 o 3 0.5%, the balance is Cu. The preparation method is the same as in Example 1.

Embodiment 3

[0039] The dispersion-strengthened copper-based composite material for spot welding electrodes in this embodiment consists of the following components in mass percentages: TiC10%, Ce1%, La 2 o 3 1%, Al 2 o 3 1%, the balance is Cu. The preparation method is the same as in Example 1.

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Abstract

The invention discloses a dispersion strengthening copper-based composite material for a spot-welding electrode and a preparation method of the dispersion strengthening copper-based composite material, and belongs to the technical field of metal-based composite materials. The dispersion strengthening copper-based composite material for the spot-welding electrode is composed of, by mass, 5%-10% of TiC, 0.5%-1% of Ce, 0.5%-1% of La2O3, 0.1%-1% of Al2O3 and the balance Cu. The TiC has the characteristics of being high in hardness, high in melting point and good in heat stability. The TiC and the Cu are not subjected to solid solution with each other. The prepared composite material not only has the TiC characteristics of being high in strength, high in hardness and high in melting point but also has the Cu characteristics of being high in electrical conductivity, high in thermal conductivity and the like. Furthermore, the strength, abrasion resistance and high-temperature resistance of copper can be improved through the TiC. The light rare earth element Ce and the light rare earth oxide La2O3 have the effects of strengthening the grain boundary and refining crystal grains, and thus the strength and machinability of the composite material can be improved.

Description

technical field [0001] The invention relates to a dispersion-strengthened copper-based composite material for spot welding electrodes and a preparation method for the composite material, belonging to the technical field of metal-based composite materials. Background technique [0002] High-strength and high-conductivity copper-based composites are a new type of functional material with excellent comprehensive properties. They not only have excellent electrical conductivity, but also have high strength and superior high-temperature performance. With the development of the electronics industry, especially in the late 1970s, the American SCM company developed the Glidcop series Al 2 o 3 After dispersion-strengthened Cu composite materials, high-strength and high-conductivity copper-based composite materials have been extremely active in the development and research of developed countries such as the United States and Japan, and have entered the practical stage. However, the r...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C32/00C22C1/05
Inventor 刘勇朱顺新杨志强田保红宋克兴张毅李艳龙永强
Owner HENAN UNIV OF SCI & TECH
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