In the field of low-end welding material products, due to the low entry threshold, a large number of small and medium-sized enterprises are gathered in this field. However, most of the enterprises in our country are lack of strong technology, and the homogeneity of products is very serious, so the competition is extremely fierce, and the industry concentration is also low.

The rolling plate rotates continuously, and the welding roller current passes through the workpiece intermittently, and the weld formed is composed of overlapping nuggets. Because the current passes intermittently, the roller plate and workpiece can be cooled in the rest time, so the roller plate life of roller frame can be improved, the width of heat affected zone and workpiece deformation can be reduced, and the better welding quality can be obtained.

Welding equipment product knowledge: welding roller frame is mainly composed of driving and driven roller, bracket, base, transmission device and power device, mainly to assist in the welding of cylindrical weldments. In addition to the welding of cylindrical weldment, the roller frame can also be used for welding of weldment.

With the development of China's equipment industry, welding materials have been transformed from the middle and low end to the middle and high end, and the role of welding operator industry is becoming more and more important. At the same time, the industry is gradually paying attention to the provision of welding technical services, while selling products, providing corresponding technical services to the downstream, such as assisting customers in training welding technicians, assessing product processes, and assisting customers in solving welding problems Quality problems, etc.

Welding roller frame is a kind of positioner which drives the weldment to rotate by the friction between the driving roller and the weldment. It is mainly used for assembly and welding of tubular weldment. By adjusting the height of the driving and driven rollers, it is also possible to assemble and weld the conical and segmented rotating bodies with unequal diameters For some non-circular long weldments, if they are clamped in a special ring clamp, they can also be installed and welded on the welding roller frame. Welding roller frame can also be used for manual welding or as equipment for detecting and assembling cylinder workpiece.

Although when the overlap amount of roller welding point exceeds 50% of the nugget length, the molten metal at the latter point can fill the shrinkage cavity at the former point, the shrinkage cavity at the last point is unavoidable.