The structure and function of seals

1. Sealing effect

In modern industrial production, although the structural forms of the hydraulic device Piston Rod Seal have significant differences, there are significant similarities in the overall sealing performance. They are all sealed and protected by their own elastic, plastic, or elastic-plastic deformation. Under the action of hydraulic sealing, the sealing surface will generate high initial contact stress, effectively preventing the leakage of pressureless liquid, Improved the overall operational performance of Hydraulic Seals. When the hydraulic transmission device is in operation, the pressure liquid will have a significant squeezing effect on the sealing lip. At this time, the sealing lip will closely adhere to the sealing surface and generate higher pressure. As the liquid pressure increases, the additional contact force of the hydraulic Seal will gradually increase, resulting in a certain amount of elastic and plastic deformation problems. Through this deformation, pressure liquid leakage can be effectively prevented, which is beneficial for the safety of the hydraulic device Stable application has a positive effect.

Pneumatic Sealing Ring

2. Hydraulic Cylinder Rod Seal structural form
With the expansion of the application range of hydraulic devices, the types of hydraulic seals are also gradually increasing. Compared with the operating form of the joint surface of hydraulic seals, they can be divided into two forms based on whether they can perform relative motion: static seals and dynamic seals.
Further refinement and analysis of the application of these seals can be divided into six types based on their structural differences. These six types of seal structures not only include sealing gaskets and packing seals, but also involve self sealing compression seals and self sealing tight seals. In addition, combination seals and Dust Seals are also commonly used in hydraulic seals.
Hydraulic seals are an important component of hydraulic devices, which can effectively prevent and eliminate leakage problems in hydraulic devices, and improve the operational effectiveness of the device.