Advantages And Disadvantages Of O-type Fluorine Rubber Sealing Ring
Aug 24, 2023
Fluorine rubber is a rubber containing fluorine in the molecule, and there are various types according to the fluorine content (that is, the monomer structure). The currently widely used hexafluorinated fluororubber was first marketed by DuPont under the trade name "Viton". High temperature resistance is better than silicone rubber, some chemical resistance, resistance to most oils and solvents (except ketones, esters), weather resistance and ozone resistance; cold resistance is poor, the general use temperature range is -20~250 ℃. Special formula can withstand low temperature to -40 ℃.
Fluorine rubber (FKM) is an organic elastomer formed by copolymerization of fluorine-containing monomers. Its characteristics are high temperature resistance up to 300 ℃, acid and alkali resistance, oil resistance is the best in oil resistant rubber, good radiation resistance and high vacuum resistance; electrical insulation, mechanical properties, chemical corrosion resistance, ozone resistance and atmospheric resistance All were excellent in aging properties. The disadvantages are poor processability, high price, poor cold resistance, and low elasticity and air permeability.
The operating temperature range of O-type fluororubber sealing ring: -40°C~+300°C. With the development of industry, O-type fluorine rubber sealing rings are widely used in automobiles, electronics, aerospace, ships, etc., which require relatively high precision, high temperature resistance, high wear resistance, and harsh working conditions. With the development of industry, fluorine rubber The material is also constantly improving and innovating. The following are the properties and scope of application of widely used fluororubber materials.
Advantages of O-type fluorine rubber seal ring
It can resist heat up to 250 ℃, and has the ability to resist most oils and solvents, especially all acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. Good chemical stability, excellent high temperature resistance, good aging resistance, vacuum performance, excellent mechanical performance, good insulation performance, vacuum performance, excellent mechanical performance, good insulation performance.
Disadvantages of O-type fluorine rubber seal ring
It is not recommended to be used in ketones, low molecular weight esters and mixtures containing nitrous. Automobiles, locomotives, diesel engines and fuel systems.
