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A kind of preparation method of high bending resistance copper alloy wire for automobile industry

A technology for the automotive industry and copper alloys, applied in the field of copper alloy manufacturing, can solve problems such as the decrease of folding resistance and electrical capacity, achieve the effects of improving electrical conductivity and mechanical strength, realizing wire diameter, and enhancing folding resistance

Inactive Publication Date: 2016-07-06
铜陵新辰汽车制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the wires used in the automobile industry are mainly annealed copper wires or twisted wires formed by twisting copper wires coated with tin. In recent years, with the improvement of awareness of environmental protection and resource conservation, the wire conductors have begun to reduce Diameter to reduce weight and save material, but the reduction in wire conductor diameter will lead to a decrease in folding resistance and electrical capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A method for preparing a high-folding-resistant copper alloy wire for the automobile industry, comprising the following steps:

[0013] (1) Put the copper block into the smelting furnace and raise the temperature to 1180°C to melt, then raise the temperature to 1240°C, add the relevant alloy ingredients, stir evenly, after it is completely melted, adjust the temperature to 1220°C and add refining agent to refine for 25 minutes, then grill After the slag, heat preservation for 20 minutes; then conduct a rapid chemical analysis of the copper alloy liquid before the furnace, so that the weight percentage of each element in the copper alloy liquid meets the following requirements: Ni1.5-2.5, Sn0.4-0.8, Si0.3-0.6, Mg0.25-0.35, Cr0.1-0.2, Mn0.05-0.15, Co0.07-0.13, Fe0.05-0.1, Hf0.04-0.08, W0.03-0.05, Y0.025-0.035, Sc0. 01-0.02, P0.005-0.015, the balance is copper and unavoidable impurities; after analysis, adjust the feed according to the weight percentage of each component i...

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PUM

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Abstract

The invention discloses a preparation method of a high-folding-resistant copper alloy wire used in the automobile industry. The weight percentage of each element component is as follows: Ni 1.5-2.5, Sn 0.4-0.8, Si 0.3-0.6, Mg 0.25-0.35, Cr 0.1 -0.2, Mn 0.05-0.15, Co 0.07-0.13, Fe 0.05-0.1, Hf 0.04-0.08, W 0.03-0.05, Y 0.025-0.035, Sc 0.01-0.02, P 0.005-0.015, the balance is copper and unavoidable of impurities. By adding trace amounts of Hf, W, Y, Sc and other elements, the invention can effectively improve the electrical conductivity and mechanical strength of the copper alloy, improve the elongation performance, and enhance the folding resistance performance, which can ensure the current capacity and folding resistance performance of the wire. On the premise of reducing the diameter of the wire and reducing the weight.

Description

technical field [0001] The invention relates to a method for preparing a high-folding-resistant copper alloy wire used in the automobile industry, and belongs to the technical field of copper alloy manufacturing. Background technique [0002] At present, the wires used in the automobile industry are mainly annealed copper wires or twisted wires formed by twisting copper wires coated with tin. In recent years, with the improvement of awareness of environmental protection and resource conservation, the wire conductors have begun to reduce diameter to reduce weight and save material, but the reduction in wire conductor diameter will result in a decrease in folding resistance and electrical capacity. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies of the prior art, to provide a method for preparing a high-folding-resistant copper alloy wire for the automotive industry, to improve the tensile strength and electrical conduct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/06C22C9/06C22F1/08B21C37/04
Inventor 徐泽军
Owner 铜陵新辰汽车制造有限公司
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