Laser forming electro-galvanizing wire conducting roller and manufacturing method thereof

Abstract

A laser forming electrogalvanizing line conducting roll comprises a substrate. The surface of the substrate is coated with a laser cladding layer, the thickness of the laser cladding layer is 3-10mm, the laser cladding layer and the substrate are bonded in a metallurgical manner, and the laser cladding layer is a nickel base alloy powder layer or a cobalt base alloy powder layer or a combination of the nickel base alloy powder layer and the cobalt base alloy powder layer. A manufacturing method of the laser forming electrogalvanizing line conducting roll comprises the following working procedures: A. fabricating the substrate of the conducting roll; and B. cladding an intermediate transition layer by laser: firstly cladding a layer of the nickel base alloy powder or the cobalt base alloy powder on the substrate of the conducting roll for rendering by a transverse-flow continuous CO2 laser device as the intermediate transition layer; removing surface laser cladding oxide scale by machining, and then cladding the nickel base alloy powder or the cobalt base alloy powder with better wear resistance and corrosion resistance on the intermediate transition layer by the transverse-flow continuous CO2 laser device as a surface functional layer. The manufacturing method has the advantages of strong adaptability, simple convenient operation, high normativeness, low production cost and great practical value.

Description

technical field [0001] The invention relates to a conductive roller in electrogalvanizing production and its manufacturing technology. Background technique [0002] The conductive roller is one of the key equipments of the electrogalvanizing unit, through which the steel plate is uniformly coated with zinc. With the rapid development of the automobile industry and electrical manufacturing industry, the demand for electro-galvanized sheets continues to increase, and the quality requirements for electro-galvanized sheets are also getting higher and higher. As the key equipment of electro-galvanized The quality and production efficiency of zinc steel sheets play a vital role. [0003] At present, the conductive rollers used in my country's electrogalvanizing production lines are mainly manufactured by two processes. One is that the forged alloy steel plate is curled and welded and then hot-mounted on the surface of the standard steel inner cylinder; the other is cast on the s...

AI Technical Summary

Problems solved by technology

The disadvantage of the former method is that the conductivity, corrosion resistance and wear resistance of the functional material on the surface of the conductive roller are affected by the welding performance and mechanical properties, and cannot reach the ideal level, and the structure of the weld and other parts of the surface is different. Uniformity, which often leads to the failure of the conductive roller at the welding seam, thus affecting the overall service life of the conductive roller

In addition, the process method has poor controllability, difficult operation, long manufacturing cycle, low yield and high cost

The disadvantage of the latter manufacturing method is that defects such as component segregation, pores and inclusions generated during the casting process affect the overall performance of the surface functional material, especially the corrosion resistance, thereby affecting the service life of the conductive roller

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