Special features of automatic regulation of heating in the welding zone of T-joints in small components

A system for automatic regulation of the process of butt welding of T-joints in wire and casing components is described. The system uses as the feedback parameter the mean rate of decrease of the force in the joint in the time period from the moment of application of welding current to heating the metal to the welding temperature, and the regulating effect is the duration of the welding current pulse. The results of experiments carried out to determine the special features of the welding process with automatic regulation are presented.