Copper alloy material with high strength and conductivity and manufacturing method of copper alloy material

A manufacturing method and copper alloy technology, applied in the field of high-strength and high-conductivity copper alloy materials and their manufacturing, can solve problems such as environmental pollution, high production costs, and gaps in comprehensive performance indicators

Active Publication Date: 2012-09-19
芜湖金科缘特种材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper alloy materials used in large-capacity turbogenerator rotor slot wedges, large-scale motor conductive rings, welding machine electrodes, plastic molds and die-casting molds should have high strength, high electrical conductivity, heat resistance, etc., and have high comprehensive performance requirements At present, beryllium-copper alloys are mainly used in China, but beryllium-copper alloys contain elements such as beryllium and cobalt, which makes the production cost of materials very high. Higher beryllium elements will cause environmental pollution and personal injury during the alloy production process. the harm of
[0003] Both at home and abroad are looking for substitute materials for beryllium bronze alloys. CuNi2SiCr, CuNi9Sn3 and other series of copper alloys have been developed successively. Some performance indicators of these materials have reached the level of beryllium bronze, but there is still a big gap in the overall performance indicators. How to improve the beryllium bronze substitute The comprehensive performance of materials is still a topic to be further studied in the field of copper alloys

Method used

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  • Copper alloy material with high strength and conductivity and manufacturing method of copper alloy material
  • Copper alloy material with high strength and conductivity and manufacturing method of copper alloy material
  • Copper alloy material with high strength and conductivity and manufacturing method of copper alloy material

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Effect test

Embodiment 1

[0016] The mass percent of alloy elements is Ni: 2.50%, Si: 0.50%, Cr: 0.53%, Al: 0.15%, Be: 0.06%, and the balance is copper and unavoidable impurities. The implementation process is as follows: smelting in an intermediate frequency induction furnace and casting into ingots; thermal deformation within the temperature range of 850 ° C to 700 ° C, and the deformation amount is 70%; solid solution treatment at 900 ° C, and then cooled in water; cold deformation treatment, the deformation amount is 25%; the cold deformed blank is subjected to aging treatment at 500°C.

[0017] The performance index of the alloy material is:

[0018]

Embodiment 2

[0020] The mass percent of alloy elements is Ni: 2.87%, Si: 0.39%, Cr: 0.30%, Al: 0.27%, Be: 0.10%, and the balance is copper and unavoidable impurities. The implementation process is as follows: smelting in an intermediate frequency induction furnace and casting into ingots; thermal deformation within the temperature range of 850°C to 700°C, the deformation amount is 50%; solid solution treatment at 870°C, and then cooled in water; cold deformation treatment, the deformation amount It is 45%; the blank after cold deformation is subjected to aging treatment at 460°C.

[0021] The performance index of the alloy material is:

[0022]

Embodiment 3

[0024] The mass percent of alloy elements is Ni: 2.33%, Si: 0.56%, Cr: 0.54%, Al: 0.11%, Be: 0.08%, and the balance is copper and unavoidable impurities. The implementation process is as follows: smelting in an intermediate frequency induction furnace and casting into ingots; thermal deformation within the temperature range of 850°C to 700°C, with a deformation amount of 5%; solid solution treatment at 920°C, and then cooling in water; cold deformation treatment, the deformation amount is 45%; the cold deformed blank is subjected to aging treatment at 510°C.

[0025] The performance index of the alloy material is:

[0026]

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Abstract

The invention relates to a copper alloy material with high strength and conductivity and a manufacturing method of the copper alloy material. The copper alloy material with high strength and conductivity comprises the following elements in percentage by weight: 2.30-2.90 percent of Ni, 0.35-0.60 percent of Si, 0.30-0.60 percent of Cr, 0.10-0.3 percent of Al, 0.05-0.10 percent of Be, and Cu and inevitable impurities in balancing amount. According to the invention, the high conducting performance of a Cu-Ni-Si system alloy is utilized, and Cr, Al and a trace amount of Be alloy element are added; and through a proper processing technique, mutual action among the elements is fully played and the requirements on the performances of high strength, high conductivity, heat resistance and high-temperature oxidation resistance are met.

Description

technical field [0001] The invention relates to a high-strength and high-conductivity copper alloy material and a manufacturing method thereof. Background technique [0002] Copper alloy materials used in large-capacity turbogenerator rotor slot wedges, large-scale motor conductive rings, welding machine electrodes, plastic molds and die-casting molds should have high strength, high electrical conductivity, heat resistance, etc., and have high comprehensive performance requirements At present, beryllium-copper alloys are mainly used in China, but beryllium-copper alloys contain elements such as beryllium and cobalt, which makes the production cost of materials very high. Higher beryllium elements will cause environmental pollution and personal injury during the alloy production process. hazards. [0003] Both at home and abroad are looking for substitute materials for beryllium bronze alloys. CuNi2SiCr, CuNi9Sn3 and other series of copper alloys have been developed successi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22F1/08
Inventor 李学浩孙爱俊迟永强孙景明王炜陈大龙
Owner 芜湖金科缘特种材料有限公司
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