Material analysis of double flange type limit expansion joint seal

Material analysis of double flange type limit expansion joint seal
Expansion joints provide great convenience for the chemical industry. As we all know, the products of chemical industry are very corrosive, and the corrosion resistance should be strong: the seals and internal anti-corrosion materials of expansion joints for chemical industry should be made of professional special materials, and the external steel should be made of excellent steel to improve the corrosion resistance of expansion joints as much as possible. Double flange type limit expansion joint seals are O-rubber seals, O-rubber seals are a kind of sealing element with a circular cross-sectional shape, which is widely used in a variety of mechanical equipment to play a sealing role in a certain temperature, pressure and different liquid or gas media. According to the different media, the choice of rubber sealing ring material is also different. 1, fluorine rubber: high temperature resistance, can be used in -30 ℃ - +250 ℃ environment, strong oxidant resistance, oil resistance, acid and alkali resistance. Usually used in high temperature, high vacuum and high pressure environment, suitable for oil environment. Because of various excellent properties, fluorine rubber is widely used in petroleum, chemical, aviation, aerospace and other sectors.
 
2, silicone rubber: has outstanding high and low temperature resistance, in the -70 ℃ - +260 ℃ temperature range to maintain good use of elasticity, and ozone resistance, weather aging and other advantages, suitable for thermal machinery in the sealing gasket. Because there is no toxicity can be made of insulation, insulation products and medical rubber products.
 
3, neoprene: good resistance to oil, solvents, chemical media and other properties, but not aromatic oils, characterized by excellent weather aging and ozone aging performance. Neoprene is usually used in the production of door and window seals and diaphragms and general vacuum sealing products.
 
4, EPDM: good temperature resistance, weathering and ozone aging properties, usually door and window seals, automotive industry is widely used. In the perennial use, the expander still work as stable as ever, but the rubber material still can't get rid of years and years of air oxidation corrosion, in the event of water seepage drip, you can contact with our factory after-sales we will be the fastest speed for you to deliver the rubber ring to your door.