The molded part refers to the part that forms the shape of the mold in the mold and is in direct contact with the molten metal. Its structural forms are: 1) Integral type (see Figure 1). The cavity and core are processed directly on the template, without moving and fixed mold sets, and the guide parts are also located on the template. Figure 1 Integral cavity (cavity part) This structure is suitable for molds with shallow cavities, single cavities, small cavities, easy processing of cavities, small production batches, and no heat treatment allowed. Sometimes due to the limitation of the distance between the tie rods of the die-casting machine, when the overall size of the mold is not allowed to be too large, the integral type is also used. 2) Mosaic style (see Figure 2). The core and cavity are installed as inserts in the movable and fixed mold sets. This form is called the insert type.

Since the size of the insert is relatively small, it is easy to process, conducive to heat treatment, and easy