Copper alloy and manufacturing process thereof

A manufacturing process and copper alloy technology, applied in the field of copper alloy and its manufacturing process, can solve the problems of high conductivity and softening start temperature, etc., and achieve the effect of ideal wear resistance and corrosion resistance, good electrical conductivity, and stable high temperature performance

Inactive Publication Date: 2011-11-02
华瀚管道系统科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current copper alloys cannot satisfy both high electrical conductivity and high softening onset temperature, so that they can form stable high tensile strength at high temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0020] The composition of the copper alloy satisfies 0.25%Cr, 0.22%Cd, 0.04%Ag, 0.06% rare earth, and the balance Cu in terms of weight percentage. The rare earth is Ce and Y, and the Ce and Y are equal.

[0021] Follow these steps when manufacturing:

[0022] (1) Prepare an intermediate copper alloy block for use, and the composition of the intermediate copper alloy block satisfies 4.5%Cr+4.0%Cd+0.25%Ag+balance Cu in terms of weight percentage;

[0023] (2) Prepare a rare earth alloy block for later use. The composition of the rare earth block satisfies 0.08% to 0.96% Al, 0.09-0.60% rare earth, and the balance Cu in terms of weight percentage, wherein the rare earth is Ce and Y, and Ce and Y, etc. quantity;

[0024] (3) Electrolytic copper is melted in a shaft furnace and then enters a tilting refining furnace;

[0025] (4) According to the composition of the final product 0.25%Cr, 0.22%Cd, 0.04%Ag, 0.06% of rare earth, and the balance of Cu. For example, for a furnace wit...

Embodiment approach 2

[0031] The composition of this copper alloy satisfies 0.35%Cr, 0.38%Cd, 0.08%Ag, 0.60% rare earth and the balance Cu in terms of weight percentage, wherein the rare earth is Ce and Y, and Ce and Y are equal.

[0032] Follow these steps when manufacturing:

[0033] (1) Prepare an intermediate copper alloy block for use, and the composition of the intermediate copper alloy block satisfies 4.5%Cr+4.0%Cd+0.25%Ag+balance Cu in terms of weight percentage;

[0034] (2) Prepare a rare earth alloy block for use. The composition of the rare earth block satisfies 0.96% Al, 0.60% rare earth, and the balance Cu in terms of weight percentage, wherein the rare earth is Ce and Y, and Ce and Y are equal;

[0035] (3) Electrolytic copper is melted in a shaft furnace and then enters a tilting refining furnace;

[0036] (4) According to the composition of the final product 0.35%Cr, 0.38%Cd, 0.08%Ag, 0.60% of rare earth, and the balance of Cu. For example, for a furnace with a capacity of 5 tons...

Embodiment approach 3

[0042] The composition of the copper alloy satisfies 0.3%Cr, 0.3%Cd, 0.06%Ag, 0.3% rare earth and the balance Cu in terms of weight percentage, wherein the rare earth is Ce and Y, and the Ce and Y are equal.

[0043] Follow the steps below for production:

[0044] (1) Prepare an intermediate copper alloy block for use, and the composition of the intermediate copper alloy block satisfies 4.5%Cr+4.0%Cd+0.25%Ag+balance Cu in terms of weight percentage;

[0045] (2) Prepare a rare earth alloy block for use. The composition of the rare earth block satisfies 0.5% Al, 0.3% rare earth, and the balance Cu in terms of weight percentage, wherein the rare earth Re is Ce and Y, and Ce and Y are equal;

[0046] (3) Electrolytic copper is melted in a shaft furnace and then enters a tilting refining furnace;

[0047] (4) According to the composition of the final product 0.3%Cr, 0.3%Cd, 0.06%Ag, 0.3% of rare earth, and the balance of Cu. For example, for a furnace with a capacity of 5 tons, th...

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Abstract

The invention discloses copper alloy and a manufacturing process thereof. The manufacturing process comprises the following steps of: preparing an intermediate copper alloy block and a rare-earth alloy block; adding the prepared intermediate copper alloy block into refined copper liquid in a tilting refining furnace, and homogenizing copper alloy; and adding the weighed rare-earth alloy block at the initial end of a sealing trough, and smelting to obtain the copper alloy. The copper alloy has the hightensile strength, high wear resistance and high corrosion resistance, has the stable high-temperature performance at high temperature, namely a high-temperature softening initial point is high, and has the high conductive performance.

Description

technical field [0001] The invention relates to a copper alloy and a manufacturing process thereof. Background technique [0002] Copper is used in more occasions to conduct electricity, while copper alloys are more concerned with the comprehensive mechanical and electrical properties. For copper alloy products in terms of shape and wire, more mechanical properties are paid attention to, and sometimes high temperature performance is also considered. For example, high-speed electrified catenary wire products have higher requirements for copper alloys, in addition to higher requirements for strength and wear resistance, and higher requirements for high-temperature softening initiation temperature. Therefore, for the manufacture of a copper alloy, it can not only achieve high mechanical performance index, but also make the electrical performance reach the ideal state (as close as possible to the resistance value of pure copper), and its stability at high temperature is also go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03
Inventor 谭雄雅
Owner 华瀚管道系统科技有限公司
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