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Preparation method of copper weld wire

A technology of copper-clad steel wire and steel wire, applied in metal material coating process, hot-dip plating process, coating, etc., can solve the problems of complex process method and high cost, and achieve good application prospects, low cost and high preparation method simple effect

Inactive Publication Date: 2019-05-14
张家港友谊金属复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the process for preparing copper-clad steel wire in the prior art is complex and costly

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0022] The invention discloses a method for preparing a copper-clad steel wire, which comprises the following steps:

[0023] (1) Pretreatment

[0024] Soak the selected steel wire in an acid solution with a mass concentration of 50-60% for 15-20 minutes, polish it, ultrasonicate it in absolute ethanol for 5-10 minutes, take it out, rinse it with absolute ethanol, and dry it;

[0025] (2) Preheating

[0026] Preheat the above-mentioned pretreated steel wire in an inert atmosphere at 400-500°C for 20-40 minutes, then immerse the steel wire in molten copper solution for 40-50 minutes in an inert atmosphere, and cool to room temperature to obtain a copper clad Steel wire body;

[0027] (3) post-processing

[0028] The copper-clad steel wire body is heated and softened, and then multi-step forming and drawing is performed, and then quenched by a treatment liquid, wherein the cooling rate is 0.5-1.0° C. / min, to obtain the copper-clad steel wire.

[0029] A method for preparing ...

Embodiment 1

[0031] (1) Pretreatment

[0032] Soak the selected steel wire in hydrochloric acid solution or phosphoric acid solution with a mass concentration of 50% for 15 minutes, polish it, ultrasonicate it in absolute ethanol for 5 minutes, take it out, rinse it with absolute ethanol, and dry it;

[0033] (2) Preheating

[0034] Preheat the above-mentioned pretreated steel wire in a nitrogen atmosphere or argon atmosphere at 400°C for 20 minutes, and then dip-coat the steel wire in a molten copper solution at a temperature of 1100°C for 40 minutes in a nitrogen atmosphere or an argon atmosphere. Cool to room temperature at a cooling rate of 5°C / min to obtain a copper-clad steel wire body;

[0035] (3) post-processing

[0036] The copper-clad steel wire body is heated and softened, and then multi-channel forming and drawing is carried out, and then quenched by a sodium chloride solution with a mass fraction of 8%, wherein the cooling rate is 0.5°C / min, and the moving speed of the sodi...

Embodiment 2

[0039] (1) Pretreatment

[0040] Soak the selected steel wire in hydrochloric acid solution or phosphoric acid solution with a mass concentration of 55% for 18 minutes, polish and polish it, ultrasonicate it in absolute ethanol for 8 minutes, take it out, rinse it with absolute ethanol, and dry it;

[0041] (2) Preheating

[0042] Preheat the above-mentioned pretreated steel wire in a nitrogen atmosphere or an argon atmosphere at 450°C for 30 minutes, and then immerse the steel wire in a molten copper solution at a temperature of 1150°C for 45 minutes in a nitrogen atmosphere or an argon atmosphere. Cool to room temperature at a cooling rate of 8°C / min to obtain a copper-clad steel wire body;

[0043] (3) post-processing

[0044] The copper-clad steel wire body is heated and softened, and then multi-channel forming and drawing is carried out, and then quenched by a sodium chloride solution with a mass fraction of 10%. The cooling rate is 0.8°C / min, and the moving speed of th...

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Abstract

The invention discloses a preparation method of a copper weld wire. The preparation method of the copper weld wire comprises the following steps that (1) selected steel wires are placed in an acid solution with the mass concentration being 50-60% for 15-20 minutes, grinding and polishing are conducted, then the steel wire is put into absolute ethyl alcohol to be subjected to ultrasound treatment for 5-10 minutes, the steel wire is washed through the absolute ethyl alcohol after being taken out, and then dried; (2) the pre-treated steel wire is placed to an inert atmosphere with the temperaturebeing 400-500 DEG C to be pre-heated for 20-40 minutes, then under the inert atmosphere, the steel wire is immersion-plated for 40-50 minutes in a molten copper liquid, then the steel wire is cooledto indoor temperature, and thus a copper weld wore green body is obtained; (3) after the copper weld wore green body is heated and softened, multiple times of forming pulling is conducted, then quenching treatment is conducted through a treatment liquid, the cooling rate is 0.5-1.0 DEG C per minute, and thus the copper weld wire is obtained. According to the preparation method for the copper weldwire, the preparation method is simple, the cost is low, and the preparation method of the copper weld wire has great application prospects.

Description

technical field [0001] The invention relates to the technical field of cable wire manufacturing, in particular to a method for preparing copper-clad steel wire. Background technique [0002] Copper-clad steel wire is a bimetallic composite material that combines the excellent electrical conductivity and corrosion resistance of copper with the high strength of steel. Copper-clad steel wires are mainly used in various fields such as electrified railways, lightning protection grounding systems, communications, and electronic component leads. [0003] Copper-clad steel wire replaces copper with steel, which greatly reduces the consumption of pure copper, thereby reducing cost, reducing density, and saving precious copper resources; copper-clad steel wire has less attenuation than pure copper wire at high frequencies, and at high frequencies Low-frequency transmission signal loss is small and transmission efficiency is high. [0004] However, the process for preparing copper-cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/04C23C2/02C23C2/26
Inventor 钱国平黄志超
Owner 张家港友谊金属复合材料有限公司