Copper and aluminum die casting composite polar plate conductive head and manufacturing method thereof

Abstract

The invention relates to a copper and aluminum die casting composite polar plate conductive head and a manufacturing method thereof. The conductive head comprises a middle layer conductive copper block (1), an aluminum or aluminum alloy substrate (2) compositely die cast outside the conductive copper block, one end of the conductive copper block is exposed for a certain length (1a) outside the aluminum or aluminum alloy substrate. The method comprises the steps of aluminum melting, mold preparation, die casting, cooling and cleaning. By means of the copper and aluminum die casting composite polar plate conductive head and the manufacturing method thereof, the problems that for an existing conductive head, due to the fact that copper and aluminum composition is not close and the shape error is large, the conductive property is affected, and the manufacturing cost is too high can be solved.

Description

technical field [0001] The invention belongs to the technical field of metallurgical polar plate conductive contact parts and a preparation method thereof. Background technique [0002] The conductive head is a metallurgical plate conductive contact part. The early metallurgical plate conductive heads mainly include all-copper integrated type and all-aluminum type. The disadvantage of the all-copper integrated conductive head is that the cost is too high. Although the cost of the all-aluminum conductive head is greatly reduced, the conductivity is not good enough. At present, the preparation methods of copper-aluminum composite conductive heads for metallurgical plates include explosive compounding, extrusion compounding, and conventional casting. The preparation method of explosive compounding has defects such as high labor cost, unstable state after copper-aluminum compounding, and unstable electrical conductivity; the preparation method of extrusion compounding has defe...

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Problems solved by technology

[0003] In view of the shortcomings of the above-mentioned several preparation methods, the present invention provides a copper-aluminum die-casting composite electrode plate conductive head and its preparation method to solve the problem that the existing conductive head affects the conductivity and cost due to the lack of copper-aluminum composite and large shape error. too high

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