A copper-clad aluminum cladding process

Abstract

The invention discloses a copper clad aluminum coating process capable of ensuring the roundness of a core rod, reducing cost and shortening process. The process comprises the steps that unwinding, drawing, lubricating, straightening, rotary cutting of the aluminum core rod, copper strip unwinding and coated face roughening are carried out; a roughened copper strip and the rotary-cut aluminum rodenter the coating process together; in the coating process, the copper strip is repeatedly curled and deformed to form a copper reel which is close to the aluminum core rod, so that the aluminum corerod is completely wrapped in the copper reel; the joint of the copper reel is welded to form a copper clad aluminum wire; and finally, the copper clad aluminum wire is wound up on a reel. The coatingprocess eliminates the need to clean the aluminum core rod, is more environmentally friendly, and has the advantages of shortened process flow, reduced manufacturing cost and improved product qualityand yield.

Description

technical field [0001] The invention relates to a coating process for producing metal composite wires, in particular to a coating process for producing copper-clad aluminum composite wires. Background technique [0002] At present, the steps of the traditional copper-clad aluminum cladding process are: cleaning and drying the aluminum rod with special cleaning equipment, and then coating it with a copper strip. Since special cleaning equipment consumes a lot of energy, and a large amount of sewage will be generated during the cleaning process, and the sewage can only be discharged after being treated up to the standard, the process is long and the manufacturing cost is high; Straightening (also called straightening), however, where the core rod has obvious creases, the roundness of the core rod surface cannot be guaranteed, which affects the tightness of the cladding layer and the core rod, making the copper-clad aluminum wire Quality is difficult to guarantee. Contents o...

AI Technical Summary

Problems solved by technology

Since special cleaning equipment consumes a lot of energy, and a large amount of sewage will be generated during the cleaning process, and the sewage can only be discharged after being treated up to the standard, the process is long and the manufacturing cost is high; Straightening (also called straightening), however, where the core rod has obvious creases, the roundness of the core rod surface cannot be guaranteed, which affects the tightness of the cladding layer and the core rod, making the copper-clad aluminum wire Difficult to guarantee quality

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