Method for controlling wire rod routing in production process of copper-clad aluminum materials by clad-welding method

Abstract

The invention provides a method for controlling wire rod routing in the production process of copper-clad aluminum materials by a clad-welding method. The method comprises the following steps: in the production process of copper-clad aluminum wire rod, a copper strip, an aluminum wire and copper-clad aluminum wire blank moves forwards under the traction action of a guide wheel; when moving forwards, the copper strip gradually forms a circular copper pipe along the longitudinal direction under the extrusion of a plurality of pairs of forming rollers; a longitudinal seam of the circular copper pipe is continuously welded by argon arc welding; a servo motor controls the moving speed of the guide wheel to be matched with welding current of the argon arc welding so as to ensure the moving speed of the guide wheel to be stable and prevent the problems that the copper strip wrinkles, and the like; welding points on the longitudinal seam of the copper pipe is ensured to be positioned in a same horizontal line; and the servo motor controls the moving speed of the guide wheel to be matched with the welding current of the argon arc welding, thus avoiding loose welding or overwelding phenomenon caused by overhigh or overlow moving speed of the guide wheel when the welding current is fixed.

Description

(1) Technical field [0001] The invention relates to a manufacturing method of a bimetal composite conductive material, which is especially suitable for copper-clad aluminum materials and belongs to the field of composite metal functional materials. (2) Background technology [0002] The copper-clad aluminum material is a bimetallic composite wire that is concentrically coated with a copper layer on the surface of the aluminum core wire. Since the volume ratio of the copper layer in the copper-clad aluminum wire is much lower than that of the pure copper wire, it saves a lot of scarce copper resources and reduces the production cost of the cable; the density of aluminum is small, so the weight of the copper-clad aluminum wire is only 40% of the pure copper wire Left and right, this brings many advantages to the construction of the cable, and it is not easy to sag when it is overhead for a long time, thereby reducing signal loss and distortion. At the same time, according to ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of offset welding point of the longitudinal seam of the copper pipe caused by the unsteady movement of the copper strip and the mismatch between the moving speed of the guide wheel and the welding current in the process of preparing copper-clad aluminum wire by the current cladding welding method. Provides a control method for wire routing in the process of preparing copper-clad aluminum wire by cladding welding