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2024
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03
Common forms of piston rod seals
The structure and performance of the piston rod seal have an important influence on the overall performance and life of the hydraulic system. It not only needs to bear a certain axial force, but also needs to reciprocate at a certain speed to do work externally. In this process, the piston rod seal needs to ensure that it does not leak, and has good wear resistance and corrosion resistance.
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Piston rod sealIt is one of the main pressure-bearing components in the hydraulic cylinder, and its main function is to prevent hydraulic oil leakage. This kind of seal is installed in the dust seal inside the hydraulic cylinder end cover and is an important part of the hydraulic cylinder.
The structure and performance of the piston rod seal have an important influence on the overall performance and life of the hydraulic system. It not only needs to bear a certain axial force, but also needs to reciprocate at a certain speed to do work externally. In this process, the piston rod seal needs to ensure that it does not leak, and has good wear resistance and corrosion resistance.
Common forms of piston rod seals include U-cup shaped seals, also known as piston rod seals. This kind of sealing ring is usually made of polyurethane or nitrile rubber, which has good elasticity and wear resistance. In some cases, the piston rod sealing ring also needs to be used together with the support ring (also called the retaining ring) to prevent the sealing ring from being squeezed and deformed under pressure.
In addition, the buffer sealing ring is another important auxiliary piston rod sealing ring, and its main function is to protect the piston rod when the system pressure suddenly increases. There are many types of buffer seals, including one-piece seals made of polyurethane, and two-piece seals used to prevent seal compression.
In general, the piston rod seal is an important part of the hydraulic system, and its design and selection need to be carried out according to specific working conditions and requirements. For manufacturers and users, understanding and mastering the relevant knowledge of piston rod seal is of great significance to ensure the normal operation of the hydraulic system and extend the life of the equipment.
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