Sealing material properties of the rubber sealing ring of film movement

 

"With the hardness of the" static ring rubber seal gas film sealing properties of the material

 

With the degree of research - is more important than the tribological performance factors and other factors, it is in line with the sealing surface of a Abrasive guidelines. Usually the mating surfaces harder than the sealing surface. On the sealing surface hardness contain abrasive media is greater than the hardness of solid particles in a fluid seal. Sealing surface hardness and compressive strength will be proportional to the seal surface than the ratio of pressure and hardness, indicating the relative thickness of the seal, that seal in which the friction state.

 

"Stiffness (modulus of elasticity)" static ring rubber seal air film of the performance of the sealing material

 

Stiffness (modulus of elasticity) - refers to maintaining hosts when the correct geometry capability (that white is in the process of operation of the rubber seal is not deformed affordability ratio). High elastic modulus, also carried by the rubber seal (bear) when the means to maintain the correct geometry. Faced with the sealing surface is not deformed due to Zhongzhi adaptability. On the other hand, high modulus of elasticity of the sealing material more brittle, easily due to the tight fit and thermal loads caused by excessive deformation. The low modulus of elasticity to increase thermal shock resistance of the sealing material.