The application of silicone O-rings is one of the important parts that cannot be ignored in the production and processing processes of many industries. Although the specifications of silicone O-rings are not large, they appear to be dispensable compared to many large parts. However, without the use of silicone O-rings, the quality of many products will be reduced or even unusable.
For silicone O-rings, its advantages are very obvious, such as being lighter in weight, taking up less space, and can be applied to a wide range of pressure, temperature and gap situations; suitable for a variety of different sealing media; easy to repair and not easy to damage; It has high wear resistance and automatic elastic compensation function; it has a long service life and can be used for rotational motion, axial reciprocating motion or combined motion, etc. The reasonable silicone O-ring groove size design will make these advantages more effective. It is obvious, so generally speaking, how to reasonably design the groove size of silicone O-ring?
The silicone O-ring in the groove will deform under the pressure of the medium, and the edge part of the silicone O-ring will flow into the gap position to achieve the sealing function of the silicone O-ring. The greater the pressure on the silicone O-ring, causing the greater the deformation of the silicone O-ring, the better the sealing effect of the silicone O-ring will be. When the pressure on the silicone O-ring exceeds its endurance limit, the silicone O-ring will be squeezed into the gap, causing the silicone O-ring seal to fail. For this reason, when designing the groove of the silicone O-ring, the relationship between the hardness, working pressure and clearance tolerance of the silicone O-ring must be reasonably matched. And when designing the silicone O-ring groove, the silicone O-ring groove gap should be made as small as possible.