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Method of producing tiny special-shaped composite connection point strip

A manufacturing method and technology of contact strips, which are applied in the directions of contacts, roller electrode welding, electrical components, etc., can solve problems such as poor spot welding performance, and achieve the advantages of reducing processing procedures, high composite bonding strength between layers, and reducing processing costs. Effect

Active Publication Date: 2008-05-07
GRIKIN ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its spot welding performance is poor, and copper, nickel or copper-nickel alloy are generally used as the base layer (welding layer)

Method used

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  • Method of producing tiny special-shaped composite connection point strip
  • Method of producing tiny special-shaped composite connection point strip
  • Method of producing tiny special-shaped composite connection point strip

Examples

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Effect test

example 1

[0038] Figure 4 The width is 1.0mm, the thickness is 0.42 through multi-mode drawing, and after heat treatment, the preparation The AuAgPt25-6 alloy was prepared by drawing, rolling and heat treatment, and the Ni matrix strip with a size of 0.80×0.4mm was prepared. Combined by seam welding, making it a cross-section such as image 3 The long composite strip shown, and the composite composite strip is evenly wound on the bobbin. Adjust the mechanical performance parameters through heat treatment to ensure the final performance of the product. The prepared strips are precision-molded, and the cross-section of the obtained special-shaped composite strips is as follows: Figure 4 shown. This example is especially useful when there is a large difference in the width of the two layers of composite material in the product.

example 2

[0040] After multi-mode drawing and heat treatment, the preparation AgPd50 alloy wire; CuNi20 alloy matrix strip with a size of 0.85×0.45mm was prepared by drawing, rolling and heat treatment. Composite by seam welding, making it as Figure 5 The ribbon composite shown. The composite strip is orthoped, heat treated, and precision formed into a Figure 6 product shown. This example is especially suitable for the case where the ratio of the electrical contact layer to the base layer is greater than 1:3 and the width of the two layers is the same.

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Abstract

The invention relates to a method for manufacturing a micro-shaped composite contact strip. In the method, the precious metal round wire and the matrix strip are directly composited by continuous rolling welding technology, and then the composited material is processed by precision rolling or rolling die drawing. Molding to prepare products of desired shape. The advantage of this method is that the precious metal is directly in the form of round wire, which not only increases the composite ratio of the precious metal and the base material, realizes the preparation of a micro-shaped composite contact strip with a large difference in width between the electrical contact layer and the base layer, but also improves the yield and Production efficiency, reducing production costs.

Description

technical field [0001] The invention relates to a manufacturing method of a micro-special-shaped composite contact strip. technical background [0002] The micro-shaped composite contact strip is an electrical contact material composed of multiple metals or alloys. Because noble metals and their alloys have excellent corrosion resistance, anti-welding, anti-adhesion properties and low contact resistance, they are usually used as electrical contact layers. However, its spot welding performance is poor, and copper, nickel or copper-nickel alloy is generally used as the base layer (welding layer). The main purpose of this composite structure is to ① save precious metal energy; ② reduce production costs; ③ make full use of the comprehensive properties of different metals or alloys. The composite material is widely used in various occasions such as communication relays, automotive relays, thermostats, micro switches, etc. At the same time, due to the high degree of automation i...

Claims

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Application Information

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IPC IPC(8): B23K11/06H01H1/023H01H11/04
Inventor 张晓辉何毅江轩吕保国王永明刘凤龙闫琳钟海龙刘志军刘鲁南
Owner GRIKIN ADVANCED MATERIALS
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