Honing tubes will have a lot of pits on the surface before processing. This is an important factor that affects the quality of honing tubes. To obtain good quality hydraulic cylinder tubes after quilting, these pits need to be repaired. So, what are the repair methods for surface defects of the honing tube?
1. Increase the amount of cold drawing deformation
Increasing the number of cold drawing deformation passes and increasing the total deformation can achieve the purpose of reducing the depth of pitting and reducing the honing grinding allowance.
2. Preferred hot rolled tube blank
Pocket defects of cold-drawn tubes are caused by hot-rolled tubes. Therefore, by selecting hot-rolled tubes with small corrosion and uniform wall thickness, pitting defects can be reduced and the yield of the cylinder can be improved.
3. Cleaning of inner hole defects of hot rolled tube
Quality is the premise of the product. Only good quality is the basis of customer service. Therefore, perfect repair of the defects on the surface of the hydraulic cylinder tube is our greatest commitment to customers