The device for the horizontal structure, the use of flash butt welding technology, the completion of the radiator chip head of the welding work. The equipment is equipped with a separate hydraulic station and hydraulic system. A high-power resistance welding transformer, by the PLC to centralized control, can achieve the preheating, flashing, forging the entire welding process optimization control, while making the operation more simple to meet the welding quality requirements of the workpiece.