Production process of a new type of copper-aluminum transition board with double-sided copper cladding on one end of the aluminum board

Abstract

A novel copper-aluminum transition plate production technology covering copper on double faces at one end of an aluminum plate comprises the following steps of: 1, respectively performing acid cleaning and alkaline cleaning on a copper plate and the aluminum plate; 2, heating in a space with protective atmosphere; 3, rolling copper-aluminum transition plate blank in the step 2; 4, performing vacuum hot processing on products manufactured in the step 3; and 5, cutting semi-finished products processed in the step 4 and cooled, shearing into a preset size, and packaging. Compared with the prior art, the production technology covering copper on double faces of the transition plate can enable combine strength of copper and aluminum to be over 10 times of that of the traditional technology and achieve 2800 newton. No butt welding positions exist, no disconnection happens, interface contact resistance is lowered, product quality production efficiency and yield are improved, usage amount of copper resource is greatly reduced, and production cost is lowered.

Description

Technical field [0001] The invention relates to the technical field of power transmission, in particular to a production process of a novel copper-aluminum transition plate with high bonding strength, low interface contact resistance and good product quality, with copper-clad copper on one end of the aluminum plate. Background technique [0002] In the power transmission connection and power distribution settings, it is necessary to use copper and aluminum transition plates with conductive materials at both ends of copper material and aluminum material. [0003] The general copper-aluminum transition plate adopts the corresponding welding structure of aluminum plate and copper plate, which not only consumes more copper materials and high cost, but also has large resistance at the welding seam when current passes, which is easy to generate heat and reduces the efficiency of conductive transmission; The overall strength of the copper-aluminum transition plate is low and not strong. D...

AI Technical Summary

Problems solved by technology

[0003] The general copper-aluminum transition plate is composed of aluminum plate and copper plate correspondingly welded, not only consumes more copper material, high cost, but also has a large resistance at the weld when the current passes through, which is easy to generate heat and reduces the efficiency of conductive transmission; and welding The overall strength of the copper-aluminum transition plate is low and not firm. During the installation and connection, it is easy to crack the aluminum and copper parts at the weld, and the reliability of the quality is not high.