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Making method of copper alloy wire for automobiles

A copper alloy and wire technology, which is applied in the field of copper alloy manufacturing, can solve the problems of reducing the mechanical strength and fatigue resistance of the wire, and achieve the effects of reducing the weight of the wire harness, improving the tensile strength and fatigue resistance, and reducing the diameter of the wire.

Inactive Publication Date: 2014-09-17
RUIZHAN TONGLING TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

However, when the wire conductor diameter is reduced, the mechanical strength, fatigue resistance and other properties of the wire are reduced

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0014] A method for preparing copper alloy wires for automobiles, comprising the following steps:

[0015] (1) Add the electrolytic copper into the high-frequency induction furnace and heat it to 1240°C. After the electrolytic copper is melted, raise the temperature to 1280°C, add metals such as Mg, Ag, Sn, V, etc., and cover the surface of the copper alloy liquid with a layer agent, keep warm for 16-22min, and then carry out rapid chemical analysis on the copper alloy liquid before the furnace, so that the weight percentage of each element in the copper alloy liquid meets the following requirements: Mg 0.3-0.6, Ag 0.2-0.4, Sn 0.4-0.7, V 0.15-0.25, Nb 0.12-0.18, Ca 0.05-0.1, Sr 0.04-0.08, In 0.03-0.05, Se 0.02-0.03, La 0.03-0.04, Pr 0.02-0.03, Gd 0.01-0.02, P 0.005-0.01, remainder The amount is copper and unavoidable impurities; after analysis, adjust the feed according to the weight percentage of each component in the formula;

[0016] (2) Throw Ti-Zr-Ni-Cu-Be alloy blo...

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Abstract

The invention discloses a making method of a copper alloy wire for automobiles. The copper alloy wire comprises 0.3-0.6wt% of Mg, 0.2-0.4wt% of Ag, 0.4-0.7wt% of Sn, 0.15-0.25wt% of V, 0.12-0.18wt% of Nb, 0.05-0.1wt% of Ca, 0.04-0.08wt% of Sr, 0.03-0.05wt% of In, 0.02-0.03wt% of Se, 0.03-0.04wt% of La, 0.02-0.03wt% of Pr, 0.01-0.02wt% of Gd, 0.005-0.01wt% of P, and the balance Cu and inevitable impurities. The addition of a proper amount of Ag, In, Sr, Ca and the like in copper alloy substantially improves the tensile strength and the fatigue resistance of the alloy, enhances the flex resistance, and improves the elongation performance, so the reduction of the diameter of the wire and the reduction of the weight of a wire harness are realized on the premise that the mechanical strength and the fatigue resistance of a wire conductor are guaranteed.

Description

technical field [0001] The invention relates to a method for preparing copper alloy wires for automobiles, belonging to the technical field of copper alloy manufacturing. Background technique [0002] As the performance of automobiles continues to improve, the number of wires required for automobile electrical components has increased accordingly. At the same time, environmental protection, resource conservation, and fuel efficiency have also been considered. It is necessary to reduce the weight of automobiles, which requires reducing the wiring harness used in automobiles. the weight of. One solution for reducing the weight of the wire harness is to reduce the diameter of the wire conductors that make up the wire harness. However, when the wire conductor diameter is reduced, the mechanical strength, fatigue resistance and other properties of the wire are reduced. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies of th...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C9/02C22C1/06C22F1/08
Inventor 徐泽军
Owner RUIZHAN TONGLING TECH
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