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The throat material now is made from carbon carbon composite material,and the main material is 4D C/C, the acupuncture and puncture knitting process is the main direction. The throat is one of the most important parts of the engine,and the throat material must meet the technology requirement of the missile engine. The material of the missile throat used to made from polycrystalline graphite, re-crystallized graphite,pyrolytic graphite etc. now the carbon carbon composite material is used for this parts. Carbon carbon composite material is made from carbon fiber and carbon matrix material,it’s more strengthful than graphite material, thermal shock resistance property is better than graphite material,and it can be designed. Now the carbon carbon composite material has become the most appropriate…
The graphite parts dipped with Ag have many good performance,such as it can be used under the 900centigrade situation,corrosion resistance,mechanical strength and good wear resistance.The graphite dipped with Ag is hard to process,and it cost much. The technology of the graphite-Ag need Hi-tech processing and precious metals. And it once used for military,and the exporting is also forbid. The process technology of the graphite-Ag is not easy,it need complex impregnation system,and special graphite raw material.make the carbon/graphite material as the matrix,make it under the high temperature and make the melt Ag into the graphite porosity,and got the graphite–Ag material. The graphite dipped with Ag has a low density,low C.E.T.and high mechanical strength,and the friction is also low. The graphite dipped…
The electric heating body of the graphite rod is used in high temperature vacuum furnace, and the highest temperature can reach 3000. Impregnated graphite rods can be used with Maximum use temperature 3000℃ with Resistance coefficient(8~13)×10-6 Ω•m and higher Thermal conductivity Its thermal expansion coefficient is small, high thermal conductivity, resistance coefficient for (8-13) * 10-6 ohm - m, processing is SiC and MoSi2 good, resistant to high temperature, extreme heat and good resistance, the price is cheap. Application domain:。 Carbon and graphite products is widely used machinery, electronics, semiconductor, silicon, metallurgy, petroleum, chemical, textile, electric motor, electrical appliance, electric furnace, transportation, communication, aviation, atomic energy, medicine, food, biological engineering and other fields, in order to give full play to…
