One of welding process equipment welding is a kind of preset lining device along the back of the joint to ensure the root penetration of the joint and the formation of the back of the weld.

Detailed introduction:

Pure copper has good thermal conductivity, which is conducive to improving the welding strength. For stainless steel, the problems of repeated use and good welding surface finish are considered. Other materials, such as aluminum, are not suitable for welding pad because of their low melting point.

The common practice in the industry is to use copper and ceramic pads when welding ferrous metals, mainly for easy separation after welding. Stainless steel and ceramic pads are used when welding non-ferrous metals, also for easy separation of welding pads and materials after welding, because non-ferrous metals are not easy to bond with ferrous metals.