Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and preparation method thereof

A cu-ni-co-fe-si-zr-zn, copper alloy technology, applied in the direction of metal rolling, can solve the problems of coarse grain, reduced material strength, low addition of alloy elements, etc., to achieve comprehensive mechanical Good performance and electrical conductivity, prevent excessive growth of grains, high tensile strength and electrical conductivity

Active Publication Date: 2020-04-03
FUZHOU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of alloying elements is too low, and the strength improvement effect is not obvious
The amount of alloying elements added is too high to be fully analyzed during the aging process, and the alloying elements dissolved in the copper matrix will cause a significant drop in electrical conductivity
If the aging time is prolonged or the aging temperature is increased, although it is beneficial to the precipitation of alloy elements, it will lead to overaging, resulting in a decrease in the strength of the material, and at the same time lead to coarse grains, and the machinability of the material will also deteriorate.

Method used

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  • Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and preparation method thereof
  • Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and preparation method thereof
  • Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The mass percent of the alloy composition is: 2.5 wt% Ni, 0.5 wt% Co, 0.5 wt% Fe, 0.8 wt% Si, 0.15 wt% Zr, 0.2 wt% Zn, and the rest is Cu. The Cu, Ni, Fe, and Si used for smelting are bulk raw materials with purity ≥ 99.9wt%, Cu-Zn master alloy containing 20wt% Zn, Cu-Co master alloy containing 30wt% Co, Cu-Co master alloy containing 10wt% Zr Zr master alloy.

[0037] (1) Alloy melting and casting: Put the raw materials into the crucible of the induction furnace according to the above mass percentage, and evacuate to 10 - 3 Pa, then pass through 1.1×10 5 Pa pure argon (Ar ≥ 99.99%) is smelted under the protection of pure argon. After the solid is completely melted and the alloy melt is formed, keep it for 10 minutes, then cast the alloy melt into a graphite mold, and open it after cooling. The alloy ingot was taken out from the mold, and the thickness of the ingot was 18mm.

[0038] (2) Homogenization treatment: put the cast ingot into a heat treatment furnace, and ...

Embodiment 2

[0045] The mass percent of the alloy composition is: 2.0 wt% Ni, 0.6 wt% Co, 0.3 wt% Fe, 0.6 wt% Si, 0.2 wt% Zr, 0.3 wt% Zn, and the rest is Cu. The Cu, Ni, Fe, and Si used for smelting are bulk raw materials with purity ≥ 99.9wt%, Cu-Zn master alloy containing 20wt% Zn, Cu-Co master alloy containing 30wt% Co, Cu-Co master alloy containing 10wt% Zr Zr master alloy.

[0046] (1) Alloy melting and casting: Put the raw materials into the crucible of the induction furnace according to the above mass percentage, and evacuate to 10 - 3 Pa, then pass through 1.1×10 5 Pa pure argon (Ar ≥ 99.99%) is smelted under the protection of pure argon. After the solid is completely melted and the alloy melt is formed, keep it for 10 minutes, then cast the alloy melt into a graphite mold, and open it after cooling. The alloy ingot was taken out from the mold, and the thickness of the ingot was 18mm.

[0047] (2) Homogenization treatment: put the cast ingot into a heat treatment furnace, and p...

Embodiment 3

[0054] The mass percent of the alloy composition is: 3.0 wt% Ni, 0.3 wt% Co, 0.6 wt% Fe, 1.1 wt% Si, 0.1 wt% Zr, 0.1 wt% Zn, and the rest is Cu. The Cu, Fe and Si used for smelting are bulk raw materials with a purity ≥ 99.9wt%, Cu-Ni master alloy containing 50wt% Ni, Cu-Zn master alloy containing 20wt% Zn, Cu-Co master alloy containing 30wt% Co Alloy, Cu-Zr master alloy containing 10wt% Zr.

[0055] (1) Alloy melting and casting: Put the raw materials into the crucible of the induction furnace according to the above mass percentage, and evacuate to 10 - 3 Pa, then pass through 1.1×10 5 Pa pure argon (Ar ≥ 99.99%) is smelted under the protection of pure argon. After the solid is completely melted and the alloy melt is formed, keep it for 10 minutes, then cast the alloy melt into a graphite mold, and open it after cooling. The alloy ingot was taken out from the mold, and the thickness of the ingot was 18mm.

[0056] (2) Homogenization treatment: put the cast ingot into a he...

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Abstract

The invention discloses a Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and a preparation method thereof. The copper alloy material is prepared from, by weight, 2.0%-3.0% of Ni, 0.3%-0.8% of Co, 0.3%-0.8% of Fe, 0.5%-1.1% of Si, 0.1%-0.2% of Zr, 0.1% 0.3% of Zn and the balance Cu. The preparation method of the copper alloy material comprises the following steps of alloy casting, homogenization treatment, hot rolling, solid solution treatment, deep cold rolling and pulse magnetic field aging treatment. The copper alloy material has the advantages of high yield strength, high tensile strength and conductivity, high elongation at break, and good comprehensive mechanical property and conductive performance. In addition, no toxic element is contained in the composition of the copper alloy material, the sources of raw materials are rich, the preparation process does not generate toxic compounds, and the harm to human bodies and the environment is small.

Description

technical field [0001] The invention belongs to the technical field of copper alloy materials, and in particular relates to a Cu-Ni-Co-Fe-Si-Zr-Zn copper alloy material and a preparation method thereof. Background technique [0002] In the electronics industry, conductive elastic components are developing towards miniaturization and high performance, requiring the copper alloy materials used to have higher strength, better electrical conductivity, and good processability. At present, the use of age-strengthened copper alloys (such as CuBe, CuNiSi, etc.) is increasing, and has begun to gradually replace solid-solution-strengthened copper alloys (such as CuZn, CuSnP, etc.). Aging-strengthened copper alloy refers to adding one or more other alloy elements to the copper matrix, forming a supersaturated solid solution through solid solution treatment, and then undergoing aging treatment to make the solid solution atoms emerge from the supersaturated solid solution in the form of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22C1/03C22F1/08C22F1/02C22F3/00B21B3/00
CPCC22C9/06C22C1/03C22F1/08C22F1/002C22F1/02C22F3/00B21B3/00B21B2003/005
Inventor 王晨孟祥邓志雄田杰淮童长青周建辉唐昊
Owner FUZHOU UNIV
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