As a smelting carrier, graphite crucible has good thermal conductivity and high temperature resistance, small thermal expansion coefficient, and certain strain resistance to rapid heating and cooling. It has strong corrosion resistance to acid and alkaline solutions and has excellent chemical stability. Therefore, graphite crucibles are often used for the smelting of metals, transition metals, and non-metals, and cooling plastic processes; graphite crucibles are widely used in resistance furnaces, induction furnaces, etc. Different heating furnace types such as furnaces; the ease of processing of graphite also allows graphite crucibles to be processed into different shapes according to specific process requirements, and to achieve precise processing accuracy requirements.