An in-depth look at the advantages and disadvantages of piston rods

The first is the analysis of the advantages of the piston rod:
1. The life of the piston rod is semi-permanent, because the main material of the piston rod is metal, and the tension is mainly generated by the elastic force, so even if there is wear and tear, the life of the seal is still semi-permanent in theory. Sexual;
2. The piston rod is more suitable for high-speed action. Even if the speed of the piston exceeds 1000 mm per second, there will never be a phenomenon that the material of the piston rod will be burned due to local overheating, and it can always remain constant. And sealing performance;
3. The piston rod will not be affected by the type of working oil, because it is a seal made of rubber, so it is necessary to change the material according to the type of working oil, but the piston rod is made of relatively cast iron and phosphorus Bronze material, so in addition to the problem of anti-rust, it will not be affected by the type of working oil.
The second is the analysis of the disadvantages of the piston rod:
1. There will be oil leakage from the piston rod, mainly because the surface of the cylinder and the piston ring are sealed by metal contact, so even if the machining accuracy is improved, there will still be oil leakage. And because of the main effect of the cylinder force, it is impossible for the piston to keep working at the same position for a long time under normal circumstances;
Second, compared with the U-shaped sealing ring, the cost is much higher;
3. The inner surface of the cylinder needs to be chrome-plated or otherwise treated.