The graphitization furnace is mainly used for high - temperature treatments such as the purification of graphite powder. Its operating temperature can reach up to 3000℃. The horizontal graphitization furnace is mainly applied to the sintering and graphitization of carbon materials, the graphitization of PI films, the graphitization of thermal conductive materials, the sintering of carbon fiber ropes, the sintering and graphitization of carbon fiber filaments, and other materials that can be graphitized in a carbon environment.