The use of rubber sealing ring can well prevent the leakage of lubricating oil or the invasion of other objects, and play a better role in protecting the equipment. At present, it is widely used in the electronic medical and food industries, but the materials of rubber sealing gasket may be different in different applications. Let's learn about the materials of lower rubber sealing ring.
1. Fluororubber sealing ring: with high temperature resistance, it can be used in the environment of - 30 ℃ - + 250 ℃, resistant to strong oxidant, oil, acid and alkali. Usually used in high temperature, high vacuum and high pressure environment, suitable for oil environment. Due to various excellent properties, fluororubber is widely used in petroleum, chemical, aviation, aerospace and other departments.
2. Silicone rubber gasket: it has outstanding high and low temperature resistance, maintains good service elasticity in the temperature range of - 70 ℃ - + 260 ℃, and has the advantages of ozone resistance and weather aging resistance. It is suitable for sealing gasket in thermal machinery.
3. Nitrile rubber sealing gasket: it has excellent oil resistance and aromatic solvent performance, but it is not resistant to ketone, ester, chlorination and other media. Therefore, nitrile rubber is mainly used as oil resistant sealing products.
4. Neoprene sealing gasket: it has good oil resistance, solvent resistance, chemical medium and other properties, but it is not resistant to aromatic oil. It is characterized by excellent weather aging resistance and ozone aging resistance. In production, neoprene is usually used to make door and window sealing strips, diaphragms and general vacuum sealing products;
5. EPDM rubber pad: it has good temperature resistance, weather aging resistance and ozone aging resistance. It is usually widely used in door and window sealing strips and automobile industry.