The stainless steel piston rod can be formed by rolling, and the rolling surface will form a layer of cold work hardening, which can reduce the elastic and plastic deformation of the contact surface of the grinding pair during operation, thereby improving the wear resistance of the surface of the cylinder rod. sex, while avoiding burns caused by grinding. After rolling, the reduction of surface roughness value can improve the fit properties. At the same time, the friction damage to the seal ring or the seal when the cylinder rod and piston moves is reduced, and the overall service life of the oil cylinder is improved.
The rolling process of stainless steel piston rod is an efficient and high-quality process measure. After rolling, the surface roughness of the cylinder rod is reduced from Ra3.2～6.3um before rolling to Ra0.4～ 0.8um, the surface hardness of the cylinder rod is increased by about 30%, and the surface fatigue strength of the cylinder rod is increased by 25%. The service life of the oil cylinder is increased by 2 to 3 times, and the rolling process is about 15 times more efficient than the grinding process. The above data shows that the rolling process is efficient and can greatly improve the surface quality of the cylinder rod.
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