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Preparation method of copper-clad steel bimetal composite wire

A composite wire and bimetallic technology, which is applied in the direction of cable/conductor manufacturing, wire harness manufacturing, electrical components, etc., can solve problems such as emissions, insufficient comprehensive performance of wires, and polluted waste liquid.

Pending Publication Date: 2022-04-15
ZHEJIANG PUJIANG BAICHUAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems in the prior art that only copper-clad steel metal wires with a diameter of 6 mm or less can be produced, and the comprehensive performance of the wires is insufficient and the discharge of polluted waste liquid exists in the preparation process, and to provide a method that can effectively reduce pollution and has a high Preparation method of copper-clad steel bimetallic composite wire with high performance

Method used

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  • Preparation method of copper-clad steel bimetal composite wire
  • Preparation method of copper-clad steel bimetal composite wire
  • Preparation method of copper-clad steel bimetal composite wire

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1 The illustrated embodiment is a method for preparing a copper-clad steel bimetallic composite wire, comprising the steps of:

[0041] Pre-treatment: mechanical derusting and peeling, pre-drawing, setting-out and grinding, ultrasonic cleaning (water medium), drying and plasma cleaning for steel cores with a wire diameter of 6mm; ultrasonic cleaning (water medium) for copper strips, Drying and plasma cleaning to get clean steel core and copper strip;

[0042] The composition of the steel core composition is: 0.1%C, 0.4%Mn, 0.1%Si, 0.04%Nb, 0.05%V, 0.005%B, 0.1%Ce, 0.5Nd, S%<0.004%, P%<0.006, I The amount is Fe; the average grain size of the steel core is 5μm.

[0043] The composition of the copper strip is: 99.99% Cu, 0.003% O, and the rest are impurities; the average grain size of the copper strip is 20 μm.

[0044] Also includes such as figure 2 In the plasma cleaning device shown, the steel core and the copper strip are plasma cleaned by the plasma ...

Embodiment 2

[0060] The composition of steel core composition is: 0.2%C, 0.8%Mn, 0.15%Si, 0.03%Nb, 0.04%V, 0.004%B, 0.2%Nd, S%<0.005%, P%<0.01, the balance is Fe ; The average grain size of the steel core composition is 3 μm.

[0061] The composition of the copper strip composition is: 99.99% Cu, 0.002% O content, and the rest are impurities; the average grain size of the copper strip composition is 50 μm.

[0062] In Embodiment 2, the process of plasma cleaning the steel core with a wire diameter of 6.5mm by using a plasma cleaning device is as follows:

[0063] Close the intake valves of the plasma cleaning device, and make the vacuum pump work to evacuate the vacuum chamber to 1×10 -1 Pa;

[0064] Open each intake valve, pass in argon gas from each intake port, adjust the opening of the vacuum valve, and continue to work the vacuum pump to make the air pressure in the vacuum chamber reach 20Pa;

[0065] Turn on the power supply of the tubular anode (Wuyuan Electrical Equipment Co., L...

Embodiment 3

[0077] The composition of the steel core is: 0.03%C, 0.1%Mn, 0.12%Si, 0.04%Nb, 0.02V%, 0.004%B, 0.2%Pr, S%<0.003%, P%<0.005, and the rest is Fe; The average grain size of the steel core is 5 μm.

[0078] The composition of the copper strip is: 99.95% Cu, 0.003% O content, and the rest are impurities; the average grain size of the copper strip is 40 μm.

[0079] In Embodiment 3, the process of plasma cleaning the steel core with a wire diameter of 7.3mm by using a plasma cleaning device is as follows:

[0080] Close the intake valves of the plasma cleaning device, and make the vacuum pump work to evacuate the vacuum chamber to 1×10 -2 Pa;

[0081] Open each intake valve, feed krypton gas from each intake port, adjust the opening of the vacuum valve, and the vacuum pump continues to work, so that the air pressure in the vacuum chamber reaches 40Pa;

[0082] Turn on the power supply of the tubular anode (Wuyuan Electrical Equipment Co., Ltd., model: MSB-100K), set the power freq...

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Abstract

The invention discloses a preparation method of a copper-clad steel bimetal composite wire. The preparation method comprises four steps of pretreatment, continuous hot melting rolling, drawing and electric field heat treatment. The pretreatment comprises the steps of carrying out mechanical derusting and husking, pre-drawing, paying off and polishing, ultrasonic cleaning, drying and plasma cleaning on the steel core; performing ultrasonic cleaning, drying and plasma cleaning on the copper strip to obtain a clean steel core and a clean copper strip; the prepared copper-clad steel bimetallic wire has the advantages that the strength is greater than 450 MPa, and the conductivity is greater than 50% IACS (International Annealed Copper Standard); and no pollution waste liquid is discharged in the preparation process.

Description

technical field [0001] The invention relates to the technical field of metal wire manufacturing, in particular to a method for preparing a high-performance copper-clad steel bimetal composite wire that can effectively reduce pollution. Background technique [0002] Copper-clad steel bimetallic wire is a kind of composite wire with copper coated on the surface of the steel core to form a dense bond. It has excellent electrical properties, mechanical properties and corrosion resistance, and is widely used in grounding wires of power systems, connecting wires and contact wires of rail transit, and wires for communication cables. At present, the production process of copper-clad steel bimetallic wires with a wire diameter of less than 6mm and a copper layer thickness of less than 0.25mm has matured, but it is still very difficult to prepare high-performance copper-clad steel bimetallic wires with larger wire diameters and greater copper layer thickness. challenging. [0003] A...

Claims

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Application Information

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IPC IPC(8): H01B13/012H01B13/30
Inventor 张荣良潘秋丽杨兴跃沈子祥江南
Owner ZHEJIANG PUJIANG BAICHUAN IND
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