Main uses of fluorine rubber gasket:
Fluorine rubber seals, when used for engine sealing, can work for a long time at 200 ° C ~250 ° C, and work for a short time at 300 and under, and its working life can be the same as the engine repair life, up to 1000~5000 flight hours; When used in chemical industry, it can seal inorganic acid, organic solvent and other organic matter; When used for deep well oil production, it can withstand the harsh working conditions of 149℃ and 420 atmospheres. When used for superheated steam seals, it can work in the steam medium of 160~170℃ for a long time. In the production of monocrystalline silicon, fluororubber seals are commonly used to seal special mediums at high temperatures (300 ° C) - trichlorosilane, silicon tetrachloride, gallium arsenide trichloroethylene and hydrochloric acid at 120 ° C.
Features:
Fluorine rubber has a high degree of chemical stability and is a good medium resistance among all elastomers at present. Type 26 fluororubber is resistant to petroleum-based oils, diester oils, silyl ether oils, silicone oils, inorganic acids, most organic and inorganic solvents, pharmaceuticals, etc., only not resistant to low molecular ketone, ether, ester, not resistant to amine, ammonia, hydrofluoric acid, phosphoric acid hydraulic oil. The medium properties of type 23 fluorine glue are similar to those of type 26, and there are more advantages. Its resistance to strong oxidizing inorganic acids such as fuming nitric acid and concentrated sulfuric acid is better than that of type 26, and its volume expansion is only 13% to 15% after 27 days of dipping in 98% HNO3 at room temperature.
High temperature resistance of fluorine rubber gasket:
1, high temperature gasket is made of high temperature cloth mixed rubber molding, the use of self-corrosion slightly lower and high pressure high temperature seal.
2, suitable for a variety of reaction kettle, flue, condenser, reactor, heat exchanger and storage tank or sandwich seal is a chemical and pharmaceutical equipment of high decibel green energy saving seal products.
3, fluorine rubber gasket and fiber, rubber as the main raw materials supplemented with rubber compounding and filler, and then mixed and stirred, hot roll forming, vulcanization and process.
4, fluorine rubber gasket according to its formula, process performance and non-use in my opinion is different, can be divided into ordinary rubber gasket such as oil-resistant rubber gasket.
5, according to the use or temperature and pressure is divided into low pressure rubber gaskets, medium pressure rubber gaskets and high pressure rubber gaskets.
6, water vapor, oil, solvent, very low acid, alkali or seal, gaskets are mainly used when in the middle and low pressure flange connection or seal.