Casting defect repair

2. welding: more than 90% of foundry manufacturers choose welding to solve the casting defects encountered in production. Due to the use of metal filler, the performance of the welding repair can basically reach the standard of the base metal, and the operation is simple and the welding repair efficiency is high, which is recognized and trusted by many manufacturers.

3. cold welding machine: It is a new repair technology born in the early 21st century. It is a cold welding machine because the heat generated by the workpiece during the welding process is very small. After several years of development, the application direction and technology of welding machine have been greatly developed, and have occupied a large share in the repair market. According to the repair product classification: mounter and electric spark welding repair machine.

4. placement machine: the principle of instantaneous high-frequency discharge is used to paste the welding piece on the surface of the workpiece, and the maximum thickness of each paste is equal to the thickness of the welding piece. The welding quality depends on whether the discharge is uniform. Suitable for workpiece wear, processing ultra-poor repair, in the mold market has a certain influence. The machine can also be welding powder, filling to the defect, after discharge repair. The color difference of the repaired workpiece is small. The disadvantage is that the speed of repair is slow. The common disadvantage of cold welding machines is that the welding efficiency is not as high as that of electric welding machines and argon arc welding machines. However, when repairing millimeter-level defects and processing surface defects, its outstanding advantages make people prefer to choose cold welding.