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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…
1、Density is small, light quality. Mainly depends on the density of carbon fiber carbonization temperature, PAN based carbon fiber after 1000 E processing is 117 g/cm3 density, the temperature is above 2300 E processing, generally is 210 ~ 210 g/cm3 density, type and E glass fiber density of 2155 g/cm3, metal steel fiber density of 7180 g/cm3. 2、High modulus (200 ~ 700 gpa), good rigidity, fatigue resistance, self-lubrication, small friction coefficient, wear-resisting performance is good. High modulus carbon fiber is also called the graphite fiber (GRF), generally between 92% ~ 96%, the carbon content PAN fiber M70J cornerstone ink for the theoretical value of modulus of 1020 gpa) (6717%, made in mitsubishi company recently K13C20 modulus # # 39 Beijing…
