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High-elasticity copper alloy and preparation method thereof

A copper alloy, high elasticity technology, applied in the field of high elasticity copper alloy, can solve the problems of rapid rise in raw material prices, high cost of tin bronze, shortage of raw material resources, etc., achieve good market prospects and economic benefits, low copper content, low cost Effect

Inactive Publication Date: 2011-04-27
广州铜材厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the rapid development of the global economy, there is a serious shortage of raw material resources such as copper and tin, and the price of raw materials has risen rapidly. Affected by the price of raw materials, the cost of tin bronze is very high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Example 1, a high-elastic copper alloy, the components by weight percentage are: 65% copper, 3.0% aluminum, 2.0% nickel, 0.01% cerium, and 29.99% zinc.

[0015] According to the above weight ratio, the raw materials of each component were smelted at 1100°C and left to stand, and after the temperature dropped to 1000°C, they were drawn and cast into ingots; After the ingot milling; then cold rolling, first rough rolling, annealing at 600 ° C for 3 hours after rough rolling; then intermediate rolling, annealing at 550 ° C for 3 hours after intermediate rolling; finally finish rolling, after finishing rolling at 500 ° C Annealed for 3 hours to obtain the product.

[0016] The obtained product has been tested and its main technical indicators are as follows:

[0017] Tensile strength / MPa

Hardness HV

Elongation d / %

Elastic modulus / GPa

Conductivity / IACS

671

220

7.1

112

13

[0018] Example 2, a high-elastic copper alloy, the ...

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PUM

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Abstract

The invention discloses a high-elasticity copper alloy comprising the following materials in percentage by weight: 65%-80% of copper, 1.5%-3.0% of aluminum, 0.5%-2.0% of nickel, 0%-0.01% of cerium and the balance of zinc. A preparation method of the high-elasticity copper alloy comprises the following steps of: smelting the raw materials at 1100-1200 DEG C; drawing and casting into cast ingots at 1000-1050 DEG C; carrying out hot rolling on the cast ingots at 860-1000 DEG C; carrying out face milling, and then carrying out cold rolling to obtain the high-elasticity copper alloy, wherein the cold rolling includes rough rolling with annealing at 600-750 DEG C for 3-6 hours, medium rolling with the annealing at 650-700 DEG C for 3-6 hours and fine rolling with the annealing at 550-600 DEG C for 3-6 hours. The high-elasticity copper alloy not only has excellent property, but also has lower cost, good market prospect and economic benefit.

Description

technical field [0001] The invention relates to a high elastic copper alloy and a method for preparing the high elastic copper alloy. Background technique [0002] Due to the working nature of electrical connectors and connectors in electronic products, their manufacturing materials need to have both conductive and elastic functions. Usually, a special conductive elastic material-elastic copper alloy is used. With the development of electronic products in the direction of multi-function, miniaturization, high integration, high reliability, and long life, higher requirements are placed on the performance of elastic copper alloys for electrical connectors. Highly elastic copper alloys with good processing properties, reliable elastic contact properties, high yield strength, high elastic limit, and high stress relaxation resistance are used in the manufacture of electrical connector connectors. At present, the large-scale production of highly elastic copper alloys is mainly ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22F1/08
Inventor 陈小祝柳瑞清赖维斌王海龙刘斌钟东桂陈健宁刘再勇张震志尹玲娣程荣华
Owner 广州铜材厂有限公司