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Tinning copper clad aluminum wire production technology

A technology of tinned copper-clad aluminum and copper-clad aluminum wire, which is applied in the manufacture of electrical components, circuits, cables/conductors, etc., can solve the problems of difficult control of tin layer thickness, poor adhesion, and poor concentricity, and achieve tin The layer thickness is uniform, the concentricity is good, and the binding force is good

Active Publication Date: 2012-02-15
浙江亿顺电导体有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems that the tin layer thickness of the tinned copper-clad aluminum wire produced in the traditional process is difficult to control and uneven, the concentricity is poor and the adhesion is not good. And uniform, good concentricity, good bonding force between tin layer and copper clad aluminum production process of tinned copper clad aluminum wire

Method used

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Embodiment Construction

[0012] The present invention is further described below.

[0013] A production process of tin-plated copper-clad aluminum wire, which comprises the following steps in turn: (1) adopting clad welding process to make copper-clad aluminum rod, drawing, cleaning and drying the aluminum rod, and brushing the aluminum rod, and simultaneously Brush the copper strip, and then wrap the copper strip tightly on the outside of the aluminum rod for welding; after brushing the aluminum rod and copper strip, the surface oxide scale and oil stains can be removed, so that the bonding force is better after subsequent drawing; (2) drawing , put the coated copper-clad aluminum rod into the wire drawing die on the wire drawing machine and draw it to the required size to become a copper-clad aluminum wire, specifically, the diameter is between 0.4-1.5mm; (3) Copper-clad aluminum wire electrodeposition Pre-treatment, ①alkali electrolysis, the copper-clad aluminum wire is subjected to alkali electrol...

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Abstract

The invention relates to tinning copper clad aluminum wire production technology. The tinning copper clad aluminum wire production technology comprises the following steps in order: employing cladding welding technology to making a copper clad aluminum rod, drawing, carrying out copper clad aluminum wire processing before electrodeposition, washing, carrying out electrodeposition tinning, second washing, carrying out alkaline neutralization, washing with hot water, drying and polishing. The tinning copper clad aluminum wire production technology has the following advantages that: accurate control of thickness of a tin coating, a uniform tin layer thickness, good concentricity, and good bonding force between the tin layer and a copper layer at a copper clad aluminum external surface.

Description

technical field [0001] The invention relates to a production process of tinned copper-clad aluminum wire. Background technique [0002] Tinned copper wire has always been the preferred raw material for electronic industries such as wire and cable, capacitors, inductors, and resistors because of its good electrical and thermal conductivity, ductility, and solderability. However, my country is a country with scarce copper resources, coupled with the increasing depletion of international copper resources, copper prices will continue to be high, so it has become a top priority to find alternative materials for tinned copper wires. The electrical and mechanical properties of tinned copper-clad aluminum (aluminum-magnesium) combine the excellent electrical conductivity of copper and the light weight of aluminum wires, and also take advantage of the advantages of solderability and sulfide resistance of tin. It has obvious advantages such as high tensile strength, and at the same t...

Claims

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Application Information

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IPC IPC(8): H01B13/00
Inventor 陈金兰潘超鹰董毓敏杨相艳
Owner 浙江亿顺电导体有限公司
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