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Method for continuous extrusion compounding of layered composite electrical contact materials

An electrical contact material, layered composite technology, used in metal extrusion control equipment, metal extrusion, metal processing equipment, etc., to achieve high dimensional precision control, good interface bonding quality, and good finish.

Active Publication Date: 2016-02-03
WENZHOU HONGFENG ELECTRICAL ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These processes are not suitable for the preparation of layered composite electrical contact materials

Method used

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  • Method for continuous extrusion compounding of layered composite electrical contact materials
  • Method for continuous extrusion compounding of layered composite electrical contact materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In Example 1, the operation steps for preparing mosaic-type layered composite elements using continuous extrusion composite technology are as follows:

[0026] I), the material composition of layered composite electric contact

[0027] The material composition of the layered composite electrical contact is mainly pure silver and pure copper, of which the width and thickness of the silver strip is 4mm×1mm, and the width and thickness of the special-shaped copper strip is 10mm×4mm.

[0028] II), continuous extrusion compound equipment and mold

[0029] The contact element is a double-layer mosaic composite, so the layered composite electrical contact material is prepared by using a single-wheel continuous extrusion composite machine. The extrusion die material designed according to the contact element is H13 steel (ie 4Cr5MoSiV1), and the main parameters of the die structure are as follows:

[0030] diversion angle

Composite deformation zone length

Cali...

Embodiment 2

[0038] The difference from Example 1 is that this Example 2 uses silver-based composite electrical contact material AgNi10 and pure copper metal as raw materials, and performs partial surface-to-surface composite through continuous extrusion composite to prepare a layered composite contact material.

[0039] The basic operation steps for the preparation of the layered composite electrical contact in Example 2 are as follows:

[0040] I), the material composition of layered composite electric contact

[0041] The material composition of the layered composite electrical contact is mainly AgNi10 and copper. The thickness of the AgNi10 strip is 4mm×2mm, and the width of the copper strip is 10mm×5mm. The shape and size of the AgNi10 and copper strip are relatively accurate, and the surface cleanliness is also high. better.

[0042] II), continuous extrusion compound equipment and mold

[0043] The contact is partially double-layered. Therefore, the layered composite electrical co...

Embodiment 3

[0052] The difference from Example 1 is that in Example 3, silver alloy and iron metal are used as raw materials, and surface-to-surface compounding is carried out by continuous extrusion compounding to prepare a layered composite contact material.

[0053] The basic operation steps for the preparation of the layered composite electrical contact in Example 3 are as follows:

[0054] I), the material composition of layered composite electric contact

[0055] The material components of layered composite electrical contacts are mainly silver alloy and iron metal, in which the width and thickness of the silver alloy strip is 10mm×2mm, and the width and thickness of the iron strip is 10mm×5mm. The shape and size of the silver alloy and iron metal strips are relatively Accurate, surface cleanliness is also better.

[0056] II), continuous extrusion compound equipment and mold

[0057] The contact is double-layered. Therefore, the layered composite electrical contact material is pr...

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Abstract

The invention relates to a method for continuously extruding and compositing a laminar composite electric contact material. The method comprises the following steps of: firstly, selecting precious-cheap metal combination, pretreating, and compositing a precious metal blank with a cheap metal blank in the sate of semi-fusion under the drive of a frictional force of an extruding wheel to obtain a composite product with high interface combination quality, so as to obtain a required electric connect component. After the method provided by the invention is used, the laminar compositing of the electric contact material can be realized according to the continuously extruding and compositing, so that the precious metal can be saved, the combination property of the material can be further improved, the product with high interface combination quality and high size precision can be produced, and the serialization, the short technological process and the near net shape can be further realized; therefore, the method is novel and used for preparing the laminar composite electric contact material.

Description

technical field [0001] The present invention relates to the preparation technology of layered composite electrical contact materials of noble and cheap metals, specifically, it is a method of compounding double-layer or multi-layer metal materials using continuous extrusion composite technology to produce layered composite electrical contact materials of noble and cheap metals method. Background technique [0002] Cost reduction is an important content in the current electrical contact material industry. For this reason, double-layer or multi-layer composite contact materials have become a research hotspot because of their low consumption of precious metals, good overall performance, and low price. In recent years, the United Kingdom, Japan, Germany and other countries have vigorously carried out research on composite technology and multi-layer technology. At present, the methods for manufacturing layered composite electrical contact materials mainly include rolling compos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C23/22B21C29/00B21C31/00
Inventor 陈乐生刘伟利陈晓孙增耀祁更新
Owner WENZHOU HONGFENG ELECTRICAL ALLOY
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