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Adaptability Of Fluorine Rubber Ring To Working Temperature
Choose appropriate seal material and hydraulic oil, as well as adaptability to working temperature and compatibility with oil.
The geometric position accuracy (concentricity) of the sliding parts relative to the seals is high and the material is good (such as hard chrome plating) and the surface roughness is finer to extend the service life.
For oil seals used in hydraulic pumps and motor journals, not only the roughness of the sliding surface is required to be within 0.25m, but also hard chrome plating is required on the surface. In specific use, it is necessary to adjust the oil seal lip according to the specific conditions. The radial spring force makes the tightness moderate, and an installation sleeve or thin gasket is used to protect the sealing ring during installation, so as to prevent the lip from rolling and twisting, causing the spring to slip out.
The commonly used rolling processing method for the inner surface of the hydraulic cylinder not only improves the surface roughness, but also makes the surface hardened by cold work, which is beneficial to prolong the service life of the seal ring.In addition, the pressure used, the length and type of the sliding surface also have a great influence on the service life. Therefore, the time for "scheduled inspection" should be determined based on these conditions.
The fluorine rubber ring requires a good lubrication state on the sealing surface to prevent dirt from invading people. The use of oil up to the required cleanliness level and the correct installation method are also necessary conditions.