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With the development of solar energy Photovoltaic industry, the traditional graphite material is difficult to meet the needs of large-scale production equipment. However the carbon carbon composite material has a good thermo physical properties,it has a great advantage over the graphite material. The carbon carbon composite insulation parts,structure parts and heating unit will be more and more important to silicon single crystal furnace and poly-silicon ingot furnace. There are also some problems to the carbon carbon composite material,now,the best way is to use the SiC coating to increase the effective and service life. The carbon carbon composite material is to do some reinforce treatment on the basis of carbon fiber,it forms under the 2000~2500℃,it can withstand the high temperature of…
Recently, the author is commissioned by the company to develop a kind of can meet the high performance of high-speed brakes brake piece, raw material is used in continuous filament untwisted PAN based carbon fiber T300 and its tensile strength is more than 3400 mpa, tensile modulus of 230 gpa, elongation is 115%, the density of 1175 g/cm3, carbon content over 94%, fiber diameter between 6 ~ 8 lm, count is 6 k. The needled felt manufacturing process and requirements are as follows: 1.1 short carbon fiber net tire manufacturing will long carbon fiber bundle of short cut in 68 ~ 70 mm long short carbon fiber bundle, and then folded into a net shop on network, made into uniform…
The carbon carbon composite material which used in the medical domain,is made of 3D carbon fiber perform and impregnated furfural resin, carbonization, chemical vaporized infiltration(CVI). It has all the good properties of carbon material,and also has a good biocompatibility and the similar modulus of elasticity as human skeleton,stable chemical property,high strength,light weight etc. but the disadvantage of carbon carbon composite material used for human skeleton is that the surface carbon particles of the CFC material will fall off,it’s not a small problem.the small partical will assimilated by macrophage or lymphocyte,however,the bigger particle will flow with the body fluid,and will be deposition at the body surface,and this situation will lead to the “black skin”. So it’s very important to produce and…
