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Manufacturing method for copper-stainless steel double-metal compound contact piece substrate material

A matrix material, composite contact technology, applied in the direction of manufacturing tools, metal layered products, metal processing equipment, etc., can solve the problems of large system resistance, small elastic modulus, large contact resistance, etc., to achieve good overall performance, improve Strength, elastic modulus, and small contact resistance

Inactive Publication Date: 2018-01-09
LUOYANG SHUANGRUI METAL COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The contacts are made of pure copper. Although the conductivity is good, its elastic modulus is small, the contact resistance is large, and the system resistance is large; some commonly used connector contacts such as copper-zinc-lead alloy, brass, phosphor bronze, copper Although copper alloys such as nickel alloys have a relatively large elastic modulus, their electrical conductivity is generally below 50%IACS (20°C), and the system resistance is not ideal; in recent years, the United States and Germany have developed a new generation of high-performance copper alloys , the overall performance is relatively good, but the delivery cycle is long and the price is expensive

Method used

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  • Manufacturing method for copper-stainless steel double-metal compound contact piece substrate material
  • Manufacturing method for copper-stainless steel double-metal compound contact piece substrate material
  • Manufacturing method for copper-stainless steel double-metal compound contact piece substrate material

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Embodiment Construction

[0022] As shown in the figure, the specific implementation method is as follows:

[0023] The material of the copper plate embryo is TU1, and the material of the stainless steel plate embryo is S30408.

[0024] A method for manufacturing a base material of a copper-stainless steel bimetallic composite contact, comprising the steps of:

[0025] Step 1, get the copper slab blank that plate thickness is 4mm and the stainless steel slab blank that plate thickness is 2mm standby, the thickness ratio of copper slab blank and stainless steel slab blank is 2;

[0026] Step two, combined with figure 1 Instructions, take the copper plate blank 2 in step 1 and place it on a flat sandy foundation 1, place copper support objects 3 evenly on the upper surface of the copper plate blank 2 at intervals of 80mm, and the height of the copper support objects is bimetallic The spacing S, S is controlled within the range of 4~5mm; the sum of the contact area between the copper support and the cop...

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Abstract

The invention discloses a manufacturing method for a copper-stainless steel double-metal compound contact piece substrate material. The manufacturing method comprises the following steps of bonding acopper plate blank and a stainless steel plate blank together in an explosive welding manner, and then performing rolling to obtain the copper-stainless steel double-metal compound contact piece substrate material. According to the manufacturing method, for the copper-stainless steel double-metal compound contact piece substrate material, relative to a copper contact piece prepared from a single material, by adding a stainless steel layer, the strength and the elastic modulus are improved; and meanwhile, through reasonable selection of a thickness ratio of copper and stainless steel, the contact piece substrate material is ensured to be capable of still keeping higher electric conductivity on the basis of having certain elastic modulus.

Description

technical field [0001] The invention relates to a method for preparing a base material in the field of electric connectors, in particular to a method for manufacturing a base material of a copper-stainless steel bimetallic composite contact piece. Background technique [0002] The scale of China's electronic information industry is huge, and the demand for connectors is also among the highest in the world. For the important part of the connector - the contact, the most important performance requirement is to have a low system resistivity, and its main influencing factors are the volume resistance of the material and the contact resistance at the contact interface. This requires that the base material of the contact must have certain elastic deformation resistance to make the interface closely contact while satisfying the electrical conductivity. The contacts are made of pure copper. Although the conductivity is good, its elastic modulus is small, the contact resistance is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P13/00B23K20/08B32B15/04B32B15/18B32B15/20B23K103/22
Inventor 辛宝刘金涛邓光平李瑾
Owner LUOYANG SHUANGRUI METAL COMPOSITE MATERIAL
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