What kind of material is rubber gasket?
The rubber gasket is a self expanding sealing gasket, belonging to the sealing component of the pipeline. The gasket is composed of an outer ring, the middle ring and the inner ring expansion of three parts; the outer ring and the inner ring is generally elastic sealing ring, the middle ring at the center of a ring on both sides of the bubble structure, hollow ring, outer ring seal ring outer ring and the inner side of the opening; the inner ring is divided into two parts installed in the middle, inside and outside the ring structure of the global expansion. There are many kinds of rubber gaskets, and the materials used for rubber gaskets are different. For example: if it is used in mechanical seals, generally need high temperature, oil and corrosion resistant materials, and if used in the food industry, you need more environmentally friendly, pollution-free material. Rubber gasket material is generally divided into: silicon rubber gasket, butyl rubber seals, nitrile rubber gaskets, silicone rubber gasket, three EPDM gasket, chloroprene rubber seal, polyurethane rubber gasket, hydrogenated butadiene acrylonitrile rubber gasket, fluorine rubber sealing pad of the 9 kinds of material. The above-mentioned 9 kinds of rubber gasket material has its own characteristics, so its use is also different.
Silicone rubber seals are excellent in heat resistance, cold resistance, aging resistance, and insulation. Silicone rubber gaskets are mainly used in water heaters, electric irons, microwave ovens and mechanical sealing industries, and do not apply to direct contact with the human body seal position. The gasket is similar to fluorine rubber seal characteristics and silicone rubber, but the high temperature resistance and cold resistance than silicon rubber and fluorine rubber seal has excellent weathering resistance, ozone resistance and chemical resistance. Most of them apply to diesel engines, fuel systems, and chemical plants. The hydrogenated nitrile rubber gasket has excellent corrosion resistance, tear resistance and compression resistance. It is suitable for washing machines, automotive engine systems and refrigeration systems using new environmentally friendly refrigerant R134a. Polyurethane rubber gasket mechanical performance is very good, wear-resistant, high pressure resistance performance is far superior to other rubber, suitable for high pressure, wear resistance, sealing links, such as hydraulic cylinders, cylinders, etc.. Chloroprene rubber sealing pad sunlight resistant, weather resistant performance is very good, not afraid of two chloro two methyl fluoride and ammonia refrigerant, sealed environment and various aspects of application in various contact air, sunlight, ozone resistant, chemical resistant.
Fluorosilicone rubber gasket has the advantages of fluorine rubber and silicone rubber. It has good oil resistance, solvent resistance, fuel oil resistance and high temperature resistance. Most of them are used in aviation, aerospace and military applications. Three yuan EPDM gasket has good weather resistance, ozone resistance, water resistance and chemical resistance. It is suitable for bathroom equipment, automobile radiator and automobile brake system. Suitable for oil, hydraulic oil, hydraulic oil, sweet alcohol use two ester lubricating oil, gasoline, water, silicon grease, silicone oil and medium nitrile rubber gaskets, not suitable for polar solvents, such as ketones, nitro hydrocarbons, ozone, MEK and chloroform. Ding Ji rubber gasket is especially good in air tightness, heat resistance, sunlight resistance, ozone resistance, and good insulation. It is suitable for chemical or vacuum equipment. It is not recommended for simultaneous use with petroleum solvent, kerosene or aromatic hydrocarbon.
