The most important factors of mold materials are thermal strength and thermal stability. Common mold materials: working temperature molding materials: 1000℃ One of the key parts of nickel alloy and copper-based alloy mold fittings is the mold spring. Die springs include: Japanese standard die springs, German standard die springs, springs and polyurethane springs. Usually, the die spring refers to a rectangular die spring. Die springs are widely used in stamping dies, metal die-casting dies, plastic dies, other elastic motion precision mechanical equipment, automobiles and other fields. Generally speaking, the material of die spring is chromium alloy steel. Chromium alloy spring steel has the characteristics of high temperature resistance, high hardness and long service life. Rectangular die spring has the characteristics of small volume, good elasticity, high rigidity, high precision, rectangular material, surface color separation spraying (electroplating) to distinguish different loads, beautiful appearance and so on. Die spring is one of the key parts in die accessories. Die springs include: Japanese standard die springs, German standard die springs, springs and polyurethane springs. Usually, the die spring refers to a rectangular die spring. The basic parts are: molding parts, including female die, male die and various molding cores, which are all parts of the inner and outer surfaces or upper and lower end faces, side holes, side recesses and threads of molded products. Supporting and fixing parts, including mold bottom plate, fixing plate, supporting plate, cushion block, etc. , used to fix the mold or support the pressure. The guide parts, including the guide post and the guide sleeve, are used to determine the relative position of the movement of the mold or the ejection mechanism. Core-pulling parts include inclined pins and sliders, which are used to pull out the movable core when opening the mold and demould the product. Ejection components, including push rod, push tube, push block, push plate, push ring, push rod fixing plate, push plate, etc. , used for product demoulding. Standard mould base is widely used in injection mould. This kind of mould base is composed of basic parts whose structure, form and size have been standardized and serialized, and its cavity can be processed by itself according to the shape of the product. Adopting standard mould base is beneficial to shorten the mould manufacturing cycle.