Description of the application of the seal in the high-pressure rotary sealing device

The application of seals in high pressure rotary seals. The high-pressure rotary sealing device is the key to the water jet boring machine and the drilling rig: the radius of the multi-layer cylindrical wall (m); the sexual element plays the role of connecting the rotating part and the fixing part, its intimacy, person 2, person 3: The thermal conductivity of each layer of material is sealed and damaged, which directly affects the normal operation of the whole machine. Since the seal is working at (W/(m·°C); the temperature rise will affect its working performance. The rotary seal is filled with PTFE and nylon. The heat is a single layer of cylindrical wall unit length heat. Formula, performance has been systematically studied. For most non-metallic materials, the multi-layer cylinder wall unit length heat formula, plastic, nylon and other high polymers have the characteristics of softening or melting when heated, but then hard. This feature can be repeated. Under the action of load and high temperature, they will slowly produce plastic flow or deformation, so-called creep. In view of their vulnerability to temperature changes and dimensional stability, the proposed seal The material was tested for temperature.