The traditional cathode rod welding method mainly adopts the steel linkage for welding, with the large-scale electrolyzer, especially when the series current reaches 500KA, the welding of the steel linkage becomes particularly difficult, and when the series current exceeds 600KA, the steel linkage can't even be welded.

    Aiming at the current situation of cathode steel bar welding, after in-depth research and a large number of tests, Zhengzhou Jingwei Technology Co., Ltd. has successfully developed the JW-55A Full cross section automatic welding of cathode bar. This technology solves many problems of traditional manual welding, realizes automatic welding of full cross section at the weld opening of cathode rod, and effectively solves the problems of welding quality and welding efficiency under magnetic field environment.

    The technology and equipment have been successfully introduced to the market since 2016, and have been put into use in more than 20 electrolytic aluminum enterprises such as Xinfa Group, Baotou Enterprise of China Aluminum Co.,LTD and so on, and the customers have a good response. After nearly several years of on-site use and continuous optimization and transformation, the process and equipment are now stable, and the welding effect of on-site use is good. The method can realize full cross section welding of cathode bar, with large effective welding area of the weld, significantly lower voltage drop of the weld joint than the traditional way, and improve the welding efficiency and shorten the overhauling period.

Good welding quality:

Excellent full section welding and joint performance: The effective weld area of the welded joint can reach the same cross section of the base material, and the mechanical properties and electrical conductivity of the joint are equivalent to those of the base material.

Stable and reliable welding quality: Welding parameters can be adjusted as needed to fully guarantee welding quality.

High welding efficiency:

At present, the 400KA electrolytic cell can be welded in about 16 hours

High degree of equipment automation:

It can be welded according to the set welding process parameters, the welding process does not require manual intervention, no need for professional welders to operate. And the man-machine interface is easy to operate that one person can complete the operation and control of each device.

Low cost

Compared with the traditional method, the welding electrode voltage drop is significantly reduced, the conductivity is good, and the power saving is obvious.

• The equipment can realize the automatic welding of the full section of the vertical seam at the welding joint.
• The equipment has strong adaptability, which is not affected by ambient temperature and magnetic field.
• It adopts automatic welding of equipment instead of manual operation.
• The machine can be adapted to the welding of steel rods in all groove types currently in production.