Method for resistance butt welding of round link chains, comprises carrying out a heating in which the lateral side to be welded is introduced, introducing strips with equal projections and forming flat contact source of intensive heating

摘要

The method for resistance butt welding of round link chains, comprises carrying out heating in which the lateral side to be welded is introduced, introducing a flow into the lateral side, introducing strips with equal projections on the lateral sides of the blank link, where the strips that are introduced on the lateral side are not parallel to the strips that are introduced on the second lateral side and the strips have a triangular or trapezoidal section transverse to rounded tip, and forming a flat contact source through uniform intensive heating by bringing together the lateral sides. The method for resistance butt welding of round link chains, comprises carrying out heating in which the lateral side to be welded is introduced, introducing a flow into the lateral side, introducing strips with equal projections on the lateral sides of the blank link, where the strips that are introduced on the lateral side are not parallel to the strips that are introduced on the second lateral side and the strips have a triangular or trapezoidal section transverse to rounded tip, and forming a flat contact source through uniform intensive heating by bringing together the lateral sides after the appearance of short circuit on the size that corresponds to the height of the projections for welding in the course of temperature and temperature gradient. The strips on each of the lateral sides are parallel and the strips of the lateral side are vertical to the strips of the other lateral side. The further technological steps of the welding is carried out according to conventional methods of the resistance butt welding in the solid phase or in the liquid phase, where the layer of the liquid metal is created on the front side to be welded before compressing the thickness that corresponds to the height of the strips of projections thus organizing the power supply to the front side to be welded so that the power of interaction of the current passes through the liquid metal with the electromagnetic field of the welding transformer that acts directly and vertically on the liquid layer. During welding of high strength or heavy chains, the further technological steps of the welding is carried out according to conventional methods of the resistance butt welding with burning (resistance flash butt welding) with heating.