horizontal injection moulding machine
Essentially, it’s the process of heating plastic resin pellets and forcing the melted plastic into a mold cavity. Once the plastic has cooled, the part is released and then the process begins all over again.
Plastic material in the form of small pellets are fed into the injection unit and then heated to a molten stage (transforming from a solid state to a liquid). After reaching the right temperature, the hot molten plastic is forced into the mold. Either a screw or a ram controls the pressure and speed of this phase of the injection molded plastics process. The short phase between the injection and the cooling of the object into its solid form is referred to as the “dwelling” phase. This step ensures that the mold cavities are completely filled before cooling begins. Learn more about the basics of plastic injection molding.