Description of the performance and friction of the seal

In the contact seal, it is divided into two types: self-sealing compression type seal and self-sealing type self-tightening type seal (ie lip seal). In particular, the hysteresis creep caused by the seal can be influenced by the purpose of changing the chemical composition of the material. In changing the material of the rubber seal, the designer must firmly understand the changes in seal wear and extrusion properties. The internal leakage causes a drastic drop in the volumetric efficiency of the hydraulic system, which does not reach the required working pressure, and even does not work.
Intrusion of tiny dust particles in the system can cause or exacerbate the wear of the friction elements of the hydraulic components, further causing leakage.

Therefore, seals and seals are an important part of hydraulic equipment. The reliability and service life of its work is an important indicator of the quality of the hydraulic system.

In addition to the gap seal, the seal is used to control the gap between the adjacent two coupling surfaces below the minimum gap through which the liquid requiring sealing can pass.