The importance of rubber O-ring tightness

Today we are going to introduce to us the seriousness brought by the failure of the rubber O-ring? Because rubber O-rings have been widely used in our daily life, ranging from ships, automobiles, aerospace equipment, to our usual faucets, gas valves, refrigerators, disinfection cabinets, washing machines, etc. When a small When small seals fail, the results of some devices are unimaginable.

The editor summarizes about 4 reasons for failure, which are roughly as follows:

1. Planning mistakes: because planners lack knowledge of commodities. For example, lack of estimation of the pressure received by the seal, wrong knowledge of the contact stress distribution on the sealing surface, unreasonable design of the groove for placing the seal, etc.

2. Questions about the quality of seals: The production quality of seals is closely related to the reliability of the final product. We should pass repeated surveys, researches and product tests during production. In the process of supply, the manufacturer of the seals can also be required to provide a real and accurate inspection report.

3. Wrong material selection: There are several kinds of commonly used rubber sealing materials, and their characteristics are different, so their applications are also different. Therefore, when selecting materials, you should think from many aspects and learn more about the common sense of O-ring seals.

4. Improper use of seals: a good seal, if used improperly, will also cause all product failure, such as the wrong use of lubricating oil