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                                                      The injection molding process includes melting the plastic in the extruder, injecting the plastic into the mould with the extrusion screw, and cooling the plastic in the mould. In injection moulding process, because the profit margin is usually less than 10%, speed and stability are the most critical factors for success.

                                                      1. speed:

                                                      A processing injection moulder can increase productivity by reducing the moulding cycle, which is the sum of time spent on molten plastics, injection, cooling and demoulding.

                                                      By using large molds that can produce multiple parts in a molding cycle, the output can also be increased. This type of mold is called multi hole mold.

                                                      2. stability:

                                                      A factor as important as output. The stability of the process can be maintained by carefully controlling the plasticizing temperature, the plasticizing pressure, the filling rate and the cooling process. The above 4 injection process parameters interact with each other, which is very useful for understanding process changes and solving problems. Although these process parameters are applicable to almost all injection molding processes, the processes used in each workshop will vary with the application, material selection and preferences of injection moulders.

                                                      3. filling rate:

                                                      When injection moulding thin-walled products, the material must be injected into the mould as quickly as possible to prevent the freezing of the part mould before it is filled with material. The latest resin materials and plastic machinery technologies in this field almost always aim at faster and more convenient filling process. In addition to better filling process to reduce the molding cycle, injection moulders can also reduce costs by using thin-walled moulds or larger moulds with more holes.

                                                      The thin-wall forming process requires the injection machine to complete the filling process in one second, and the machine itself can support large, multi-cavity molds. Thin-walled caps and thin-walled containers are generally small, so their moulds can produce more than 100 caps at a time.


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