The key role of fluorine O rings is sealed, because there are many types of sealing materials, mainly oil, so it is directly related to the effect of oil separation and dustproof effects in specific applications. The key factors of their characteristics are materials. Choose materials?

Different materials have different adaptability to the speed of mechanical motion. Some general materials cannot adapt to high -speed mechanical operation. Therefore, if the application environment of the sealing ring must be run at high speed, the general materials cannot be selected. Try to use some high -end materials to withstand high -speed operation conditions.

Materials are very sensitive to work pressure. Different materials can withstand different pressures. For example, if the material is oil, the pressure on the sealing ring will be smaller. If the pressure required by the sealing ring exceeds the load range of the material itself, the sealing ring will soon be damaged. Under the case of invalidity, the pressure of the sealing ring material is to be soluble.

There are many types of media, and different materials are different from the phase solubility of the medium. Sometimes, if the phase solubility of the two is poor, the sealing ring needs to be directly exposed to the material, which will inevitably lead to some component pollution substances in the sealing ring damage or sealing ring.

In addition, sealing materials should not be eroded by the material or chemically undergoing chemical changes with the material. It can be said that the choice of sealing circle materials cannot be ignored.

When choosing a sealing ring material, you must pay attention to the exercise speed introduced above. In addition to the compatibility of the pressure and the material, you should also pay attention to the temperature. Keep in mind that the temperature is high or low. Temperature has a great impact on sealing materials. Different materials have their own temperature -resistant range. Excessive temperature or too low will affect the performance of the material. Once the temperature is too high, the hardness and stretch of the sealing circle will be reduced. If the temperature is too low, it is easy to make the seal ring brittle. Each material has a suitable temperature range, and it should master its temperature adaptation range before choosing.