Piston rod processing technology

The piston rod is rolled, which improves the corrosion resistance of the surface and delays the occurrence or expansion of fatigue cracks, thus improving the fatigue strength of the cylinder rod.
Through roll forming, a cold work hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the cylinder rod surface and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced, which can improve the matching properties. At the same time, the friction damage to the sealing ring or sealing parts when the cylinder rod piston moves is reduced, and the overall service life of the cylinder is improved. The rolling process is an efficient and high-quality process measure.

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