details:
The graphite crucible is made of natural flake graphite as the main raw material and plastic refractory clay or carbon as the binder. It has the characteristics of high temperature resistance, strong thermal conductivity, good corrosion resistance and long service life. In the process of high-temperature use, the coefficient of thermal expansion is small, and it has certain strain resistance to rapid cooling and heating. It has strong corrosion resistance to acidic and alkaline solutions, excellent chemical stability, and does not participate in any chemical reaction in the smelting process. The inner wall of the graphite crucible is smooth, and the molten metal liquid is not easy to leak and adhere to the inner wall of the crucible, so that the metal liquid has good fluidity and castability, which is suitable for casting with various molds. Graphite crucibles are widely used in the smelting of alloy tool steel and nonferrous metals and their alloys because of the above excellent characteristics.
