Continuous Extrusion Composite Device for Layered Composite Electrical Contact Materials

Abstract

The invention relates to a device for continuously extruding and compositing a laminar composite electric contact material. The device comprises an extruding wheel, and a compacting wheel and a groove-sealing block, which are arranged along a material transporting direction around the periphery of the extruding wheel, wherein an extruding wheel groove is formed in the periphery above the extruding wheel, a plug head is arranged in front of the extruding wheel groove, an extruding channel for enabling a composite layer blank to generate plastic deformation is formed in a section of the extruding wheel grooved surrounded by the groove-sealing block and the plug head, an inlet mould and an outlet mould are arranged under the extruding channel, the place at which the inlet mould is over against an outlet under the extruding channel is provided with a material inlet, the material inlet is the place at which the inlet mould is contacted with the outlet mould, and the material inlet between the inlet mould and the outlet mould forms a composite cavity. A seal block is arranged at the right of the inlet mould, a seal block inlet is provided with a cutter, an air inlet hole is formed in the seal block, an extruding boot base is arranged under the inlet mould and the outlet mould, and the groove-sealing block, the plug head inlet mould and the plug head outlet mould are arranged inside the extruding boot base. After the device provided by the invention is used, the compositing which is high in efficiency, low in energy consumption as well as simple and effective in technology can be realized.

Description

technical field [0001] The invention relates to the preparation technology of layered composite materials of precious metals, in particular to a continuous extrusion compounding device of layered composite electrical contact materials. 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 of manufacturing clad electrical contact materials mainly include rolling cladding, explosive welding, cold pressing lamination, diffusion welding, seam welding, etc. Although the above composite technologies have been applied in production and h...

AI Technical Summary

Problems solved by technology

Although the above composite technologies have been applied in production and have their own advantages, there are inevitably some disadvantages at the same time. For example, the rolling composite material is easy to bend during the preparation process and affects the quality of the bonding interface; the bonding interface of the explosive composite material is easy to show waves. It affects its bonding strength, and the dimensional accuracy of the product is difficult to control, so it cannot be produced continuously

[0003] The Chinese invention patent with the publication number of 85100316A provides a bimetallic strip shear deformation solid-phase composite process technology and device. The composite device shear deformation solid-phase composite rolling mill in this invention can only realize the strip with a rectangular cross section. Composite, many rolls, complex structure

[0004] The Chinese invention patent with the publication number of 101947689A provides a continuous composite forming method for copper-aluminum composite panels and its composite forming device. The continuous extrusion composite forming device in this invention can only realize the composite of rectangular strips. , and the metal blanks are solid-solid bonded, and the interface bonding strength is low

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