The requirements of the hydraulic piston rod in the work and production are different according to different conditions. The quenching and tempering methods are two very important methods in the production of the piston rod. Their purpose is actually very simple. Try to use the piston rod as much as possible to avoid frequent problems due to routine use problems. Such as wear, cracks and so on. Tempering and tempering can help to close the cracks on the surface of the piston rod and improve the corrosion resistance. Simply plating can improve surface wear resistance and the piston rod slows down wear during use.
The processing technology of the hydraulic piston rod can improve the surface corrosion resistance and delay the generation or expansion of fatigue cracks, thus 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 rolling, 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.
Hydraulic piston rod requirements for each part
1. In order to ensure the stability of the processing accuracy of the piston rod, manual alignment cannot be performed during the whole process.
2. The use of the piston rod needs to bear the alternating load, and the device reciprocates the surface of the piston. Therefore, the surface must meet the requirements of high hardness and wear resistance.
3. When selecting the positioning reference, in order to effectively ensure the coaxiality tolerance of the parts and the mutual positional accuracy of each part, the two center hole positioning can be adopted for all the processing steps.
4. In order to ensure the machining accuracy, when turning the piston rod, the roughing and finishing vehicles should be separated. Moreover, the coarse and fine cars are always used with the tool holder to reduce the deformation of the workpiece during machining, and the center frame should be remembered when machining the threads at both ends.www.xhychromerod.com