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The carbon carbon composite material has a big difference to the superalloy and ceramic materials. Under inert conditions,even the temperature reach 20000C,the strength of the C/C material can still remain unchanged situation,the strength will not reduce. The carbon carbon composite material have a good resistance to thermal shocks and excellent mechanical properties. However, the fatal weakness of CFC material is the low oxidation resistance.although the C/C material has a high specific strength, high specific stiffness and high temperature stability,as one attractive structure material,when the temperature reach 4000C,the carbon carbon composite material start to oxidize. So the most researches on the C/C composite is how to avoid or reduce the degree of oxidation,and also many researches on the processing of the…
C/C composite material is carbon matrix reinforced by carbon fiber. The whole system is made up of carbon element. So the carbon structure which is formed by carbon element will have a big influence on the mechanical properties, thermal performance, friction and wear properties of the composite material.the degree of graphitization is one of the most important indexes to characterize the carbon carbon composite material.most researches show that the higher degree of graphitization which has a better combination properties to the carbon carbon composite material. According to the different kinds of raw materials,the carbon fiber can be divided into three kinds: polyacrylonitrile base(PAN) fiber,pitch base fiber and rayon base fiber. Generally speaking,the PAN base fiber is harder to be graphitization…
The graphite gasket be made By pure graphite plate or metal (teeth plate, plate, mesh) reinforced graphite plate cutting or punching, with many outstanding sealing performance, such as: thermal stability, self lubrication, corrosion resistance, aging, not brittle, etc., in the harsh conditions of the conditions can be used for a long time, very few need to maintain. Lining material can be different with different metal plate. Typeoptionalwithoutedge, inneredge, outsourcing side, inside and outside wrapping. Graphite cut gasket is from pure graphite plate punching or cutting into the, it has good corrosion resistance, resistant high / low temperature, good compression elasticity and high strength, a variety of circular complex geometric gasket is widely used in pipes, valves, pumps, pressure vessels, heat…
