Comparison of bearing seat repair and rotor seat repair before and after - gas turbine series-Shenyang Jinyan Laser Remanufacture Technique Development Co., Ltd

Basic characteristics of technology

01. The repair process does not damage other non-failure parts;

02. The repair process does not cause secondary damage to the workpiece, such as deformation and damage (including matrix annealing, tempering or re-quenching, hot cracks, etc.);

03. The repair area and the workpiece matrix are metallurgically combined, the strength of the repair area can reach more than 85% of the original body material, and the wear resistance, corrosion resistance and erosion resistance can be significantly higher than the original workpiece body material, so it can be To extend the service life of the workpiece after repair;

04. Laser and micro-arc spark composite repair processing can obtain unique effects;

05. During the laser repair process, the surface of the base material is only slightly melted, and alloyed with the repair material to form a single-phase interface. The thickness of the interface can be controlled to about 0.05mm, and there is no obvious heat-affected zone;

06. When the performance of the repair area is higher than that of the workpiece matrix material, it is a composite gradient structure composed of the bottom layer, the transition layer and the surface layer, with a fine structure and low residual stress or compressive stress state surface;