Mold is the industrial production of very extensive use of basic technology equipment, mold industry is the basic industries of the national economy. In modern industrial production, product parts are widely used stamping, forging forming, die-casting shape, extrusion forming, plastic injection or other forming process, and forming mold matching, so that the billet forming process to meet the requirements of the product parts. Our daily production, life used in a variety of tools and products, large to the machine tool base, fuselage shell, small to a head screws, buttons and a variety of household appliances shell, all with the mold has a close relationship. The shape of the mould determines the shape of these products, and the quality and accuracy of the molds determine the quality of these products. In recent years, the rapid development of the mold industry, graphite materials, new technology and constantly increasing mold factory impact on the mold market, graphite with its good physical and chemical properties gradually become the first choice for mold production materials.
At present, graphite mold has been widely used in the following aspects: Non-ferrous metal Continuous casting and semi-continuous casting graphite mold, in recent years, at home and abroad are being promoted by the molten metal State directly continuous (or semi-continuous) manufacturing rod or pipe and other advanced production methods. In the domestic copper, copper alloy, aluminum, aluminum and other aspects have begun to adopt this method. Synthetic graphite is considered the most suitable material for continuous casting or semi-continuous casting of nonferrous metals. Production practice has proved that, due to the use of graphite mold, because of its good thermal conductivity (thermal conductivity determines the solidification rate of metal or alloy), the mold self-lubricating performance and other factors, not only to improve the mold speed, but also due to the size of the ingot precision, smooth surface, crystallization of uniform, can be directly under the process of processing. This not only greatly improve the yield, reduce the loss of waste, and product quality has been greatly improved. Continuous casting method has two kinds of vertical continuous casting method and horizontal continuous casting method.
Pressure casting molds, artificial graphite materials have been successfully used in the non-ferrous metal pressure casting. For example, the castings of zinc alloys and copper alloys made from moulds manufactured with manufactured graphite materials have been used in automotive parts.