Molds are basic process equipment widely used in industrial production, and the mold industry is the basic industry of the national economy. In modern industrial production, product parts widely use stamping, forging, die-casting, extrusion, plastic injection or other forming processing methods, matched with forming molds, to form blanks into parts that meet product requirements. The various tools and products we use in daily production and life, ranging from the base of machine tools and body shells to as small as a head screw, button and the shell of various household appliances, are all closely related to molds. The shape of the mold determines the appearance of these products, and the processing quality and precision of the mold also determines the quality of these products. In recent years, the mold industry has developed rapidly. Graphite materials, new processes and an increasing number of mold factories have continued to impact the mold market. Graphite has gradually become the preferred material for mold production due to its good physical and chemical properties.