The main attack direction of mechanical seal performance materials-

The main attack direction of mechanical seal performance materials

　2017-01-18　　

The achievement of mechanical seal performance is an overall technical level problem. It seems that the current focus is to solve the soft material problem in the friction pair: there is still a big gap compared with foreign countries, mainly due to the small variety and poor quality. The main attack direction should be:

① Carbon graphite impregnation technology should be able to impregnate various resins, metals, ceramics and glass, etc., especially to develop impregnation of various metals and siliconized graphite, etc.;

②Increase and improve the variety and quality of auxiliary sealing rings, with the focus on composite material dynamic ring sealing rings, such as PTFE-coated rubber, etc.;

③ Pay attention to and develop auxiliary systems and devices for mechanical seals, and different auxiliary measures or installations should be provided according to different conditions. In addition, we must also pay attention to and develop the development and research of elastic components. For example, the stress of the asymmetric bellows tends to be uniform and there is no stress concentration. Its natural frequency is far away from the pump speed, which reduces the possibility of vibration resonance and improves the sealing ability. Improve the elasticity of the bellows.　　241.html,

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