Technical method for relieving metal welding seam stress universally

Abstract

The technical method relates to a technical method for relieving metal welding seam stress universally. The technical method comprises the following processes that S1, heat treatment is conducted on welded or cut parts; and S2, moving is performed according to the sizes and the directions of the heat-treated parts, wherein in the process S1, an annealing process is adopted for heat treatment, the heat treatment temperature range is 670-700 DEG C, and in the process S2, the moving process is not affected by the sizes and the positions of the heat-treated parts, and the moving speed is 80-100 s per 1 mm. The technical method has the advantages that the application range is wide, use is convenient, the stress relieving effect is good, and the moving process is not affected by the sizes and the positions of the heat-treated parts.

Description

technical field [0001] The invention belongs to the technical field of stress relief, in particular to a technical method for stress relief of metal universal welds. Background technique [0002] In recent years, with the continuous development of mechanical and electrical equipment, many types of mechanical and electrical equipment have appeared in the society. The emergence of these equipment can benefit human beings. The production of equipment must be maintained. For example, in welding or cutting operations, fractures often occur again after welding or cutting. In the past, this re-fracture phenomenon was attributed to the defects of welding technology, but it was actually caused by the failure to eliminate stress. We all know that shipbuilding, bridges, Steel structures, horse head lifting equipment, construction machinery, agricultural machinery, electric power pipes, chemical pipes, steel industry, aluminum industry, copper industry, railway construction, high-speed ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the continuous development of mechanical and electrical equipment, many types of mechanical and electrical equipment have appeared in the society. The emergence of these equipment can benefit human beings. The production of equipment must be maintained. For example, in welding or cutting operations, fractures often occur again after welding or cutting. In the past, this re-fracture phenomenon was attributed to the defects of welding technology, but it was actually caused by the failure to eliminate stress. We all know that shipbuilding, bridges, Steel structures, horse head lifting equipment, construction machinery, agricultural machinery, electric power pipes, chemical pipes, steel industry, aluminum industry, copper industry, railway construction, high-speed rail vehicles, automobile industry and other mechanical processing industries will use this technology; now there are also some methods of heat treatment to relieve stress, but most of them have more or less deficiencies, for example, they cannot be adjusted according to the size and position of the workpiece, the stress is not completely eliminated, and the universal applicability is poor. For the above problems, it is necessary to develop a stress-relief technology that is not affected by the treatment position, adopts annealing process, and has strong universal applicability; The technical method of stress relief for metal universal welds affected by size and position is of great significance