The chrome-plated piston rod is rolled to improve the surface corrosion resistance and delay the generation or expansion of fatigue cracks, thereby improving the fatigue strength of the cylinder rod. By rolling forming, the rolling surface forms a cold hardening layer, which reduces the elastic and plastic deformation of the grinding contact surface, thereby improving the wear resistance of the cylinder rod surface and avoiding burns caused by grinding.
After the chrome-plated piston rod is rolled, the surface roughness value is reduced to improve the compounding property. At the same time, the friction damage to the sealing ring or the sealing member during the movement of the cylinder rod piston is reduced, and the overall service life of the oil cylinder is improved. The rolling process is an efficient and high quality process.
Basic requirements for chrome-plated piston rods:
(1) have sufficient strength, rigidity and stability;
(2) Good wear resistance and high processing precision and surface roughness requirements;
(3) Minimize the effect of stress concentration on the structure;
(4) Ensure reliable connection and prevent loosening;
(5) The design of the piston rod structure is to facilitate the disassembly and assembly of the piston.
The chrome-plated piston rod assembly includes: a piston, a piston ring, a support ring, a piston rod, and the like. Depending on the type of construction, the piston can be divided into a cylindrical piston (longer than the diameter), a disc piston (longer than the diameter), a stepped piston, a combined piston and a plunger piston.www.xhychromerod.com