Method for repairing nodular cast iron roller

• Main Author: SU YIMIN
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention belongs to the technical field of material repairing, and particularly relates to a method for repairing a nodular cast iron roller. According to the method for repairing the spheroidal graphite cast iron roller, argon tungsten-arc welding is adopted, welding wires are melted at the abraded position of the surface of the spheroidal graphite cast iron roller to be repaired, and therefore the abraded position of the surface of the roller is repaired. According to the method for repairing the nodular cast iron roller, excellent repairing quality can be achieved, and good economical efficiency is achieved. According to the repairing method, the advantages that argon tungsten-arc welding is stable in electric arc, concentrated in heat, shallow in molten pool and the like are utilized, 2.4 mm welding wires are adopted, unconventional welding parameters are matched, and the problem that cracks and welding defects are likely to be generated in a traditional electric arc welding repairing mode is solved.