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Preparation method of high-strength and high-conductivity Cu-Cr-Zn alloy material

A technology of cu-cr-zn and alloy materials, which is applied in the field of preparation of high-strength and high-conductivity Cu-Cr-Zn alloy materials, can solve the problems of poor electrical conductivity and low strength of copper alloys, achieve high mechanical strength, and avoid crystal lattice Distortion, the effect of enhancing adaptive capacity

Active Publication Date: 2019-02-01
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention discloses a preparation method of a high-strength and high-conductivity Cu-Cr-Zn alloy material, which mainly solves the problems of low strength and poor electrical conductivity of copper alloys currently on the market

Method used

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  • Preparation method of high-strength and high-conductivity Cu-Cr-Zn alloy material

Examples

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Effect test

Embodiment 1

[0012] A method for preparing a high-strength and high-conductivity Cu-Cr-Zn alloy material, characterized in that the method comprises the following steps:

[0013] 1) Take 55 parts by weight of copper, 10 parts by weight of chromium, and 25 parts by weight of zinc as alloy materials, put chromium and zinc into a melting furnace, heat up to 2000°C, and melt them into a melt. After fully stirring, Get the chromium-zinc alloy liquid, then add the weighed copper into the melting furnace, cool down to 1500°C and keep it for 1-1.5 hours, then continue to cool down to 1050-1100°C, then blow argon into the melting furnace for 20 minutes of refining Remove the slag, let it stand for 10-20 minutes, and obtain a mixed melt;

[0014] 2) Transfer the mixed melt to the atmosphere lifting furnace, evacuate the furnace to below 100Pa, then pass in 0.1MPa pure nitrogen gas to raise the temperature to 950°C, add 14 parts by weight of ZnFe 2 o 4 @Ni nanocomposite material is then heated to 1...

Embodiment 2

[0019] Exactly the same as Example 1, the difference is: add 60 parts by weight of copper, 6 parts by weight of chromium, 28 parts by weight of zinc and 11 parts by weight of ZnFe 2 o 4 @Ni nanocomposites.

Embodiment 3

[0021] Exactly the same as Example 1, the difference is: add 50 parts by weight of copper, 14 parts by weight of chromium, 22 parts by weight of zinc and 17 parts by weight of ZnFe 2 o 4 @Ni nanocomposites.

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Abstract

The invention discloses a preparation method of a high-strength and high-conductivity Cu-Cr-Zn alloy material. The preparation method comprises the steps: Cu, Cr and Zn with the purity being not lowerthan 99.9% are adopted as metal raw materials, and through operations such as physical smelting, calcining, degassing and quenching and by introducing an Ni / Fe metal material, the high-strength and high-conductivity Cu-Cr-Zn alloy material is obtained finally. The high-strength and high-conductivity alloy material prepared through the preparation method is high in tensile strength and good in conductivity, and can meet needs of performance requirements which are continuously improved in the practical application field.

Description

technical field [0001] The invention relates to a method for preparing an alloy, in particular to a method for preparing a high-strength and high-conductivity Cu-Cr-Zn alloy material. Background technique [0002] Copper and copper alloys are widely used in electronics, transportation, machinery and other fields due to their excellent electrical and thermal conductivity. The electrical and thermal conductivity of pure copper is outstanding, but the strength of pure copper is low, only 230~290MPa, although it can be increased to 400MPa after cold hardening, but the elongation is extremely low, and it will be lost quickly in the tempering process, which cannot meet the requirements. Comprehensive industrial requirements. With the development of high-tech fields, higher requirements are put forward for the performance of copper alloys, requiring copper alloys to have both high strength and high electrical conductivity. High-strength and high-conductivity copper alloys can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C9/04C22F1/08C22F1/02
CPCC22C1/02C22C9/04C22F1/02C22F1/08
Inventor 王晋丽孙立于洋
Owner XUZHOU NORMAL UNIVERSITY
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