Process and equipment for producing copper-aluminum compound busbar

Abstract

The invention provides a process for producing a copper-aluminum compound busbar and equipment for realizing the same. The production process comprises the following steps of: a, melting aluminum and keeping the molten aluminum warm at a temperature of between 700 and 800 DEG C, quantitatively casting the molten aluminum in a specially shaped copper tube by a closed flow channel, and cooling the molten aluminum to form a copper-aluminum compound ingot; b, under the protection of inert gas, heating the ingot; and c, under the protection of inert gas, performing primary rolling of horizontal-vertical tandem rolling, finish rolling of horizontal-vertical tandem rolling and reshaping of the heated copper-aluminum compound ingot, and finally obtaining the copper-aluminum compound busbar. The production equipment comprises a casting device and a hot rolling device, wherein the casting device comprises a melting furnace, a holding furnace and a cooling machine; and the melting furnace is connected with the holding furnace; the holding furnace has a closed structure and is provided with a quantitative casting system. When the production process and the equipment are utilized to produce the copper-aluminum compound busbar, the interface bonding strength of the copper-aluminum compound busbar is improved, and the production efficiency and the quality of the copper-aluminum compound busbar are also improved.

Description

technical field [0001] The invention relates to a production process and equipment for a copper-aluminum composite busbar. Background technique [0002] Combining two materials with different properties, making full use of the respective advantages of the two materials, avoiding their shortcomings, improving their comprehensive performance, and reducing material costs have become a hot topic in the field of material research today. [0003] Copper and aluminum are combined, the outer layer is copper, and the inner core is aluminum. The electrical busbar can reduce the weight of the busbar, greatly reduce the cost, and can maintain high electrical conductivity, corrosion resistance and oxidation resistance. It has very significant social and economic benefits for saving a large amount of copper materials in short supply and reducing the cost of electrical devices. [0004] Due to the large potential difference between copper and aluminum electrodes, direct compounding in the...

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Problems solved by technology

[0004] Due to the large potential difference between copper and aluminum electrodes, direct compounding in the air will cause electrochemical corrosion. Using the solid-phase bonding process, the interface bonding strength is low, and the hardness and ductility of the two materials are greatly different. The binding strength of the

At present, the cladding welding method, rolling and crimping method and other technologies that have appeared have complex technological processes, low production efficiency, high scrap rate, and low interface bonding strength.

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