What Is Orbital Welding?

The welded joint of a rail refers to a rail joint in which a rail end is not drilled with bolt holes by welding, and an unquenched rail is welded into a continuous long rail. In order to make the long rail welding head basically achieve the mechanical properties of the rail base metal and to safely withstand the temperature force of the seamless line, the welding method of the rail can be steel machine contact welding, rail pressure plate and rail aluminum heating.

The welded joint of a rail refers to a rail joint in which a rail end is not drilled with bolt holes by welding, and an unquenched rail is welded into a continuous long rail. In order to make the long rail welding head basically achieve the mechanical properties of the rail base metal and to safely withstand the temperature force of the seamless line, the welding method of the rail can be steel machine contact welding, rail pressure plate and rail aluminum heating. Weld heads should not have the appearance of hard bends, misaligned teeth, misalignment and other irregularities on the rail surface to meet the requirements of smooth running ^[1]

Rail welding refers to the process of welding standard length steel rails without drilling the end of the rail bolts and without hardening the rail ends by using welding methods such as contact welding, air pressure welding, aluminous welding, and arc welding. ^[1]

Welding operations are generally divided into three stages ^[1]

Welding in the factory and spot welding according to the work place ^[1] . Factory welding can achieve a high degree of mechanization and automation, welding quality is easily guaranteed, and production efficiency is high. On-site welding can make up for the shortage of long rail transportation equipment.