Qinghe Denuo Plastic Products Co., LTD. : key points for the use of seals
Description：(1) Select the appropriate sealing material and hydraulic oil, as well as the adaptability to the wo....
(1) Select the appropriate sealing material and hydraulic oil, as well as the adaptability to the working temperature, the compatibility to the oil. (2) Relative to the seal sliding parts of the geometric position accuracy (concentricity) high material (such as hard chrome plating) and fine surface roughness can extend the service life. (1) used for hydraulic pump, motor shaft oil seal not only requires the sliding surface roughness within the Ra is 0.25 m, but also for hard chromium plating on the surface, when used in the specific need according to the specific situation adjust oil seal lip radial force of spring, the elastic moderation, even when installation and installed with a sleeve or shims to protect the sealing ring, lest his lips, twisting, twisted, sliding out in spring. (2) hydraulic cylinder cylinder inner surface commonly used rolling processing method, not only improve the surface roughness, and make the surface of the cold hardening treatment, is conducive to extend the service life of the seal ring. In addition, the pressure used, the length of sliding surface and the type of sliding surface also have great influence on the service life. Therefore, the timing of the "final inspection" should be decided on the basis of these conditions. (3) the seal surface lubrication is required to be in good condition to prevent contamination. The use of oils of the required cleaning grade and proper installation methods are also necessary.
This paper is finished by Qinghe Denuo Plastic Products Co., LTD