2022-11-19
2023-02-07The dense crystal graphite is also called block -like graphite. Such graphite crystals are obviously visible to the naked eye. The diameter of the particles is greater than 0.1 mm, which is concentrated in 0.1-1m/g than the surface area. This graphite is characterized by high quality. Generally, the carbon content is 60-65%, and sometimes 80-98%, but its plasticity and slipperyability are not as good as scales.
2023-02-07Graphite is a kind of homogenous alien body for carbon. It is gray -black, opaque solid, stable chemical properties, corrosion resistance, and it is not easy to react with drugs such as acid and alkali. Natural graphite comes from graphite ore. It can also be used as a raw material for oil coke, asphalt coke, etc., and made a series of processes to make a human -made graphite. Graphite is burned in oxygen to generate carbon dioxide, which can be oxidized by strong oxidant such as concentric acid and potassium permanganate. It can be used as an anti -wear agent and lubricant. High -purity graphite is used as a neutron decelerator in the atomic reactor. It can also be used to manufacture crickets, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, arc furnaces, and arc
2023-02-06Graphite is soft, black and gray, with greasy feeling, which can pollute paper. The hardness is 1-2, and the hardness can be increased to 3 to 5 along the vertical direction.
2023-02-06The large and medium -sized graphite mines in the world are mainly distributed in China, India, Brazil, Czech Republic, Canada, Mexico and other countries
2023-02-06Graphite is a transitional crystal between atomic crystals, metal crystals and molecular crystals
2022-11-19Carbon felt is a felt made of carbon fiber, which has a wide absorption spectrum and a large capacity. Graphite felt can be made by high temperature graphitization. Graphite felt is mainly used as thermal insulation material for monocrystalline silicon smelting furnace.Carbon felt purification can be used as adsorption purification material, as insulation material for vacuum furnace and inert gas furnace. In addition, carbon fiber materials have advantages in fields that have strict requirements on strength, stiffness, weight, fatigue characteristics, etc., and in occasions that require high temperature and high chemical stability. The carbon content is about 90%, and the service temperature is about 1000 degrees Celsius.The main use of graphite felt is as insulation material for monocrystalline silicon smelting furnace. It can be used as a filter material for high-purity corrosive chemicals in the chemical industry. Under the condition of non-oxidizing atmosphere, the service tempera
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