Mold is a very widely used basic process equipment in industrial production, and the mold industry is the basic industry of the national economy. In modern industrial production, product parts are widely used in stamping, forging forming, die-casting forming, extrusion forming, plastic injection or other forming processing methods, which are matched with forming dies to make the blank forming and processing into parts that meet product requirements. All kinds of tools and products used in our daily production and life, from the base and body shell of the machine tool to the shell of a screw, button and various household appliances, all have a close relationship with the mold. The shape of the mold determines the shape of these products, and the processing quality and accuracy of the mold also determine the quality of these products. In recent years, the mold industry has developed rapidly, graphite materials, new processes and increasing mold factories continue to impact the mold market, graphite with its good physical and chemical properties have gradually become the preferred material for mold making.