Graphite bearing in graphite products is mainly made of graphite material, which has strong self-lubricating property and corrosion resistance. It can run for a long time without using lubricating oil, and is mostly used for sliding bearing. It is applied to the bearing of conveyor, dryer, textile machine, submersible pump motor, etc. in the industrial sectors of food, beverage, textile, chemical industry, etc. It is usually made of graphite to make boat dishes with pressure resistance and sintering resistance. Crystal growth crucibles, regional refining vessels, brackets, clamps, induction heaters, etc. of monocrystalline silicon are all made of high-purity graphite. In addition, graphite can also be used as heat insulation board and base of vacuum metallurgy, high temperature resistance furnace tube, rod, plate, grid and other components.
The crucible made of graphite has high fire resistance and low thermal expansion. In the process of smelting metal, it is also stable when it is infiltrated and scoured by metal. It has good thermal shock stability and excellent conductivity at high temperature, so it is widely used in the process of direct melting metal. High purity graphite products are used for high purity metal smelting, electronic industry, nuclear industry and mold manufacturing; common products are used for aluminum decomposition tank, powder metallurgy sintering furnace, ferroalloy furnace and other masonry materials in submerged arc furnace. The safety of graphite products is high — no radioactive pollution. Since carbon can only become graphite after graphitization for at least ten days and nights in the environment of 2000-3000 ℃, the toxic and harmful substances in graphite have already been released, which is stable at least within 2000 ℃.