Mold processing technology can be divided into many types, including injection molding, compression molding, extrusion molding, die-casting molding, hollow molding, as well as hot runner process, hard mold process, and soft mold process. There is no better process, and it will be selected according to the application field, technology, equipment, and parameter requirements. The manufacturing of any industrial equipment, Often requires the coordination of multiple process molds.

Injection molding process is a common and important mold processing technique used in the field of plastic processing. The material is first fed into the injection molding machine, and when the material accumulates in the heating cylinder, it will undergo melting after heating. At this time, the screw of the injection molding machine will push the melted plastic into the inside of the mold, and the mold will continue to be heated. Plastic molding is completed through a certain pressure holding process, After forming, a cooling process is required to complete the demolding of the mold.

The compression molding process is also relatively common, which is an early plastic component molding method and is generally not used in the manufacturing of high-precision plastic products. This type of mold is open, with an open mold cavity, which sends melted plastic into the mold cavity and then closes it up and down. Through pressure and heat, physical and chemical reactions are generated. Currently, thermosetting plastics and organic silicone resin raw materials are processed, Unsaturated polyester pellets are processed using this mold process.

The extrusion molding process is also often applied, which melts plastic particles into a sticky flow state and sends them into the mouth film of the mold through high temperature and pressure. At this time, the internal temperature is reduced, and the plastic immediately forms shape. Among all mold processing processes, the extrusion molding process requires higher parameters, including traction speed, mold inlet temperature, and screw speed, all of which need to be coordinated well, otherwise shark skin, structural distortion, and lack of luster will occur, Surface roughness, orange peel, and other phenomena affect the quality of the product.

The die-casting molding process, also known as the die-casting molding method, also requires heating the raw materials and then feeding them into the mold. It uses die-casting to apply pressure. The originally viscous raw materials become flowing under high temperature and pressure, and gradually become plastic parts through the pouring system of the mold. This process is generally used on solid plastics, which can provide a better curing rate but requires a higher curing temperature, It is also one of the common mold processing techniques.

The hollow forming process does not require a high initial temperature. Sheet or tube shaped plasticized blanks are fed into the mold, and then compressed air is used to tightly adhere the material to the surface of the mold. Then, the cooling and shaping method is used to cure for a period of time before demolding. Generally, hollow products can use this process, and the main raw materials are soft polyethylene, low-pressure polyethylene, polypropylene, high-pressure polyethylene, and polycarbonate materials, This mold processing technology may seem simple, but a slight mistake can lead to uneven thickness of the profile.