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| Rubber and plastic product variety, according to the working state can be divided into static sealing products and dynamic products. O ring seal is widely used in static and reciprocating machine. The seal is widely used for sealing a rotating shaft. The O ring and the seal, accounting for more than half of the total number of seal products. Rubber sealing pieces of work through the rubber and seal contact and implementation, such as the seal is in the lips of the small area with the axis of rotation surface to contact pressure and in fluid lubrication achieve no leakage, the O-ring is of apron give section compression force to achieve sealing, etc., and therefore require high elasticity of rubber, oil resistant and ageing resistant performance is good. In recent years and in the rotating sealing development dynamic reflux oil seal and the oil seal lip patterns with backflow, at work can will leak out of the oil of anti push back seal cavity. The seal is the development of rubber and plastic composite seals in reciprocating, with rubber compression elastic seal to wear plastic support member, in order to achieve good sealing performance and low friction. In order to study the effect and improve the quality of seal sealing products, more and more attention to the development of the simulation test, simulation test of various. In the production process, the development of high temperature, cavity, non adhesive side moulding vulcanization and injection vulcanization, the future will be automated and specialized mass production direction. |
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