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Copper, silver and cerium alloy

A cerium alloy, copper-silver technology, applied in the field of high-performance metal materials, can solve the problems of no alloy performance improvement, waste of rare earth elements, and reduced alloy mechanical properties.

Active Publication Date: 2016-08-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: The rare earth cerium added to the copper alloy can only purify the matrix, and hardly improves the performance of the alloy. For example, researchers try to add 0.05-0.08% rare earth cerium to the copper-silver alloy (CN201410089967.1 , copper-silver alloy for ultra-fine copper enameled wire and its production process)
At present, there are also reports of adding a large amount of rare earth cerium to copper alloys, but adding a large amount of rare earth cerium to copper alloys increases the production cost of the alloy and causes waste of rare earth elements. At the same time, copper and cerium react to form coarse second phase particles. The mechanical properties will decrease

Method used

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  • Copper, silver and cerium alloy
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  • Copper, silver and cerium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A copper-silver-cerium alloy, the raw material components are: 98.7% of copper, 0.1% of silver, and 0.2% of cerium.

[0066] Smelting method:

[0067] (1) Use an angle grinder to grind the scale of the raw materials copper, silver and cerium, and preheat the crucible and the casting mold.

[0068] (2) Medium frequency induction melting is adopted. In order to prevent the oxidation of copper alloy, the melting process is carried out under the protection of argon gas.

[0069] (3) Continue heating when the alloy is completely melted by visual observation, and reduce the power when the temperature of the solution rises to 1250°C and keep it for 30 minutes.

[0070] (4) When the temperature of the solution is lowered to 1150° C., pour the solution into the mold.

[0071] (5) After the ingot is completely cooled, it is homogenized in the atmosphere furnace. The homogenization process is 700°C×60min and then furnace cooling.

Embodiment 2

[0073] The invention relates to a copper-silver-cerium alloy. The raw material components are: 99.8% of copper, 0.1% of silver and 0.1% of cerium.

[0074] (1) Use an angle grinder to grind the scale of the raw materials copper, silver and cerium, and preheat the crucible and the casting mold.

[0075] (2) Medium frequency induction melting is adopted. In order to prevent the oxidation of copper alloy, the melting process is carried out under the protection of argon gas.

[0076] (3) Continue heating when the alloy is completely melted by visual inspection, and reduce the power when the temperature of the solution rises to 1200°C and keep it for 40 minutes.

[0077] (4) When the temperature of the solution is lowered to 1100° C., pour the solution into the mold.

[0078] (5) After the ingot is completely cooled, it is homogenized in the atmosphere furnace. The homogenization process is 700°C×60min after heat preservation

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Abstract

The invention discloses a copper, silver and cerium alloy. The copper, silver and cerium alloy is prepared from, by weight, 98.7%-99.8% of copper, 0.07%-0.1% of silver and 0.1%-0.2% of cerium. The vacuum induction smelting method is adopted. In the copper, silver and cerium alloy, part of rare earth cerium generates compounds together with impurities, the compounds are left in slag, and therefore a matrix is purified; and part of rare earth cerium reacts with copper to generate second-phase particles Cu6Ce, a strengthening effect on the matrix is achieved, and the mechanical property of the alloy is improved.

Description

technical field [0001] The invention belongs to the technical field of metal materials with high-performance structures, and in particular relates to a copper-silver-cerium alloy. Background technique [0002] A high-strength and high-conductivity copper alloy widely used at present is Cu-0.086%Ag alloy (Wang Qingjuan, Xu Changzheng, Zheng Maosheng, etc. Research status of high-strength and high-conductivity copper alloy[J]. Journal of Xi'an University of Science and Technology, 2006,38 (5): 731-736. Liu Hui, Hu Zhongwei. Fan Gang, et al. Research on the Properties of Copper-Silver Alloy Contact Wire (CTHA) [J]. Yunnan Metallurgy, 2004, 186(4): 34-37. Yang Weixian. Silver Copper Performance test and comparison of contact wires [J]. Wire and Cable, 1999(2): 31-32. Niu Yuying, Song Baoyun, Liu Yuanwen. New manufacturing process of silver-copper alloy contact wires [J]. Plastic Engineering Journal, 2006, 13(3):65-68.). Adding 0.01-0.08% rare earth cerium to Cu-0.086%Ag alloy,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08H01B1/02
CPCC22C1/02C22C9/00C22F1/08H01B1/026
Inventor 李胜利贾彬朱新德常丽丽
Owner SHANDONG UNIV