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Characteristics of rubber gaskets of different materials

来源: webbeech.com 点击量: Time: 2019-12-20 09:46:57 Source: webbeech.com Traffic: Times

There are many types of rubber gaskets, and the properties of different types of rubber gaskets are different. Let ’s talk with Xiaobian about the characteristics of different material rubber gaskets:


Natural rubber is suitable for water, seawater, air, inert gases, alkalis, saline solutions and other media, but it is not resistant to mineral oil and non-polar solvents. The long-term use temperature does not exceed 90 ° C, excellent low temperature performance, can be at -60 ° C Used above.



Nitrile rubber is suitable for petroleum products, such as petroleum, lubricating oil, fuel oil, etc., the long-term use temperature is 120 ℃, such as 150 ℃ in hot oil, low temperature of -10 ~ -20 ℃.



Chloroprene rubber is suitable for seawater, weak acid, weak alkali, salt solution. It has excellent resistance to oxygen and ozone aging. Its oil resistance is inferior to nitrile rubber and better than other general rubbers. 130 ℃, low temperature is -30 ~ -50 ℃.



There are many varieties of fluorine rubber, they have good acid resistance, oxidation resistance and oil and solvent resistance. It can be used in almost all acid media and some oils and solvents, and the long-term use temperature is lower than 200 ° C.



Under low pressure (especially 0.6 MPa or less) and vacuum, rubber gaskets are more suitable. The rubber material has good compactness and low air permeability. For example, fluoro rubber is the most suitable sealing gasket for vacuum containers, and the vacuum degree can reach 1.3 × 10-7Pa. When the rubber pad is used in the vacuum range of 10-1 ~ 10-7Pa, it needs to be baked and exhausted.







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