How to enhance the wear resistance of the sealing ring

There are many types of sealing rings, and when choosing O-ring products, users should choose according to actual use needs. But the sealing ring in use is difficult to avoid the problem of wear, want to reduce the amount of wear, it is necessary to enhance the wear resistance of the sealing ring itself, then how to enhance the wear resistance of the sealing ring? Xiaobian summarizes the following points:

1. First of all, we should properly improve the hardness of rubber: Theoretically, improving the hardness of natural rubber can enhance the deformation resistance of rubber, and the sealing ring can be evenly contacted under the action of stress between the contact surface, so as to achieve the purpose of improving the wear resistance. The hardness of fluorine rubber O-ring should not be too high, otherwise the elasticity and buffering effect of the sealing ring will be affected to a certain extent, and then affect the wear resistance of the sealing ring.

2. The second is to adjust the degree of vulcanization: the vulcanization system and vulcanization parameters of the natural rubber sealing ring are adjusted reasonably, and the wear resistance of the rubber sealing ring is improved by improving the degree of vulcanization of the sealing ring.

3. Adjust the elasticity of rubber: appropriately improve the elasticity of natural rubber, reduce the viscosity and hysteresis of rubber, reduce the coefficient of friction, and improve the wear resistance of the sealing ring.

4. Improve rubber tensile strength: When natural rubber is used as raw material, the use of fine particle rubber filler in the formula can improve the intermolecular force, and the wear resistance of natural rubber can be increased to a certain extent by improving the tensile strength and fixed elongation stress of the rubber.

5. Reduce the surface friction coefficient of natural rubber sealing ring: adding a small amount of graphite, molybdenum disulfide and other materials to the formula can reduce the surface friction coefficient of rubber sealing ring and enhance the wear resistance of the sealing ring.