Characteristics of Rolling Cylinder
High precision: The roughness of the inner surface of the cylinder after rolling processing can reach Ra0.4-0.8 microns, improving the fitting accuracy and reducing friction and wear during movement.
High surface quality: The rolled surface forms a cold work hardening layer, which improves the hardness and wear resistance of the cylinder, while avoiding burns and microcracks caused by grinding.
Good mechanical performance: Rolling processing leaves residual compressive stress on the surface layer of the cylinder, which helps to seal small cracks, hinder the expansion of erosion, and thus improve the corrosion resistance and fatigue strength of the cylinder.
Efficient and energy-saving: Compared with grinding processing, rolling processing has shorter time, higher efficiency, and lower equipment investment cost. For example, rolling a 1-meter cylinder takes about 10-30 minutes, while grinding takes 1-2 days.