The main role of carbon graphite felt after felt under vacuum or inert atmosphere by more than 2000 ℃ high temperature treatment of graphite felt, carbon content than the carbon felt high, reaching more than 99%. The late 1960s the world has graphite felt the supply of goods. Graphite felt due to the choice of different raw mat into PAN-based graphite felt and glue-based graphite felt two. The PAN-based carbon fiber felt or rayon-based carbon graphite felt cut to the required size for sale, rolled into a tubular graphite into the material of the container, the container placed in a high temperature furnace graphite (graphite tube furnace for high temperature furnace, frequency, high frequency induction furnace or other heating forms of high-temperature furnace), with a vacuum or inert gas through high purity, to 100 ~ 300 ℃ / h heating rate of heating to 2200 ~ 2500 ℃, and then naturally cooled to 100 ℃ that too. Environmental health graphite products, non-radioactive contamination Lacey graphite, high temperature. Carbon to go through at 2000-3300 degree heat at least a dozen environmental circadian graphitization process in order to become graphite, carbon graphite manufacturers therefore, graphite release of hazardous substances already exhausted graphite, at least less than 2000 degrees is stable a. Exist in the form of carbon is varied, there is crystalline elemental carbon such as diamond, graphite; amorphous carbon such as coal; complex organic compounds such as animals and plants and the like; carbonates such as marble and the like. Physical and chemical properties of elemental carbon depends on its crystal structure. Different diamond and graphite crystal structure of soft creamy high hardness, each have their own appearance, density, melting point. Graphite Carbon sale _ Sea Dragon (certified) _ Graphite provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.