APPARATUS FOR WELDING CRANK OF A TRUSS GIRDER IN A REINFORCED CONCRETE STRUCTURE AND A METHOD THEREOF

摘要

the present invention is used in reinforced concrete slab girder truss (truss girder) on the crank in contact with one pairs and reducing the work time compared to manual operation by automatically detecting the current and the welding in a state where the selective portion of the welding current , increase the ease of operation , the welding defects of the weld component by the absence of the buzzer sound over the weld Now on a reinforced crankshaft will reduce automatic welding apparatus and method for concrete girder trusses .