What Are The Performance Advantages Of Fluororubber Sealing Rings?
Aug 31, 2023
Fluorine rubber sealing ring is commonly known as FKM in English. Naturally, it is also known as FPM or Weitong in some regions. It is also known as fluororubber polyurethane elastomer, which is a polymer material with fluorine atoms on the carbon chain and the oxygen atom of the main chain. The molecular structure of vulcanized rubber has fluorine atoms, and fluorocarbons composed of fluorine atoms and oxygen atoms have high performance. In addition, the fluorine atom has a strong adsorption effect, which improves the performance of the carbon-carbon bond in the fluorocarbon molecular structure chain, and increases with the increase in the degree of bismuth oxide. The fluorine atom can better shield the carbon-carbon bond, thereby ensuring the organic chemical plasticity of the carbon-carbon bond.
Advantages of fluorine rubber seal ring
1. Fluorine rubber sealing ring has excellent heat resistance
The outstanding characteristic of Viton sealing ring is its excellent heat resistance. It can work for a long time under the environment standard of 200 ℃ to 250 ℃, not only that, but also can work for a short time under the high temperature of 300 ℃. The tensile strength and strength of fluoroelastomer are inversely proportional to temperature. Below 150°C, as the temperature rises, the strength begins to decrease. Between 150 and 260°C, the rate of decrease will gradually stabilize as the temperature rises. Another outstanding feature of the fluorine rubber skeleton seal is the low temperature performance, which can maintain elasticity in the following 5 ranges of -20. However, as the temperature drops, its tensile strength increases and becomes harder at low temperatures. When the temperature reaches -30, the thickness is 1.872mm. When the temperature reaches -45, the thickness immediately becomes 0.631mm. When the temperature reaches -70, the thickness is 0.251mm.
2. Fluorine rubber sealing ring has excellent anti-aging performance
Fluorine rubber has very good aging resistance and active oxygen resistance. After ten years of natural storage, the performance of fluorine rubber products is still quite satisfactory.
3. Fluorine rubber has excellent organic chemical reliability
In addition to excellent temperature resistance, fluororubber sealing ring also has the characteristics of stable chemical properties of fluororubber. It is better than other vulcanized rubbers for chemical liquids such as light fuel oil, gear oil and grease, and for various oxidizers such as dilute nitric acid, concentrated sulfuric acid, hydrochloric acid, sulfuric acid and hydrogen peroxide with a higher concentration. It is also one of the vulcanized polyurethane elastomers with excellent resistance to a wide variety of organic chemicals.
4. Fluorine rubber sealing ring has excellent mechanical performance
Fluorine rubber sealing ring is also a material with excellent physical and mechanical properties in vulcanized polyurethane elastomers, and has very good advantages in terms of tear strength and tensile strength. After testing, the shrinkage deformation rate of the fluorine rubber sealing ring is not large.
What types of fluororubber seals are there?
Viton sealing rings include many commodities, such as: fluororubber skeleton seal, fluororubber U-ring, fluororubber O-ring, fluororubber sealing strip, fluororubber sealing ring, perfluoroether sealing ring, fluororubber V-ring, Viton Y-ring, Viton gasket, etc.
The scope of application of fluorine rubber sealing rings: automobiles, shipbuilding, organic chemistry, crude oil, telecommunication networks, instrumentation equipment, mechanical equipment, airlines, cruise missiles, rockets, ships and other industrial production industries.
