Description of the effect of the seal on temperature and pressure and surface treatment

The seal is a part used to prevent the leakage of fluid pipelines and the leakage of the medium. It plays a vital role in the hydraulic and hydraulic integrity of some hydraulic and pneumatic components, if the sealing products of the component products are not closed. It may affect the sealing effect. There are many factors that naturally affect the seal. Most of them are concentrated on the pressure of the seal and the surface treatment and temperature and pressure.

    Firstly, the pressure of the seal is the first reason that affects the quality of the seal. Most of the pressure is due to the pressure of the seal, and the length of the pressure cycle changes, which has a great influence on the seal damage (such as extrusion). The higher the pressure, the greater the influence of other factors on the performance of the seal, such as temperature, speed, material of the seal, the gap between the piston and the cylinder, and the gap between the piston and the cylinder head.

    Followed by the surface treatment of the seal, through some practical experience, it can be seen that the characteristics of the piston rod and cylinder piston surface are inextricably linked to the service life of the seal. The surface characteristics are usually defined by the value of the surface roughness RA, RA is The arithmetic mean of the absolute value of the surface shape from the centerline. However, these values do not fully indicate the effect of the surface condition on the seal, because even at the same roughness, different surface shape features can result in different degrees of seal wear on the seal.

    Finally, the temperature of the seal is the same as the friction and the friction produces the temperature. It is well known that it is relatively difficult to describe the high and low temperature of a seal material. This is mainly related to some comprehensive factors. The difference between the surface roughness of the seal product and the working environment of the seal is the key to the quality of the seal.