Rubber seals play a key role in power engineering, especially their performance in high temperature environments is very important. This paper will deeply discuss the high temperature resistance of rubber seals in power engineering and selection principles, to help readers better understand and choose suitable seals.
Analysis of high temperature resistance
Material selection key: In power equipment and systems, seals need to be able to withstand high temperature environments, and common high temperature resistant rubber materials include Silicone, fluororubber (FKM) and neoprene (NBR). Silicone rubber has excellent high temperature resistance and can maintain stable performance in the range of -60°C to 230°C.
Aging resistance: The selection of rubber materials with good aging resistance can maintain elasticity and sealing effect in long-term high temperature operation, and extend the service life.
Chemical corrosion resistance: Considering the oils, lubricants and chemicals that may be exposed to in power engineering, chemical corrosion resistant rubber materials are selected to avoid reducing the performance of the sealing ring due to the influence of the medium.
Selection principle
Working temperature range: According to the actual working temperature of the power equipment, select the rubber seal that can work stably in the temperature range to ensure that it will not fail due to temperature changes.
Medium adaptability: Analyze the chemical reaction that may occur after the sealing ring is in contact with the medium, and select a chemically resistant rubber material that can resist the erosion of the medium to ensure a long-term stable sealing effect.
Mechanical properties: Considering the high pressure, high speed and vibration that may exist in power engineering, rubber seals with good elastic and compressive properties are selected to ensure that they can withstand mechanical stress without failure.
Cost-effectiveness: Under the premise of meeting technical requirements, choose cost-effective rubber seals to reduce the overall cost and improve the reliability and stability of the equipment.
conclusion
The high temperature resistance of rubber seals in power engineering and the selection principle are the key factors to ensure the long-term stable operation of equipment. By selecting materials suitable for working conditions and reasonable selection principles, the performance of the sealing ring can be effectively improved, the service life of the equipment can be extended, the maintenance cost can be reduced, and the safe and reliable operation of the power project can be effectively guaranteed.
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