General definition of mold: in industrial production, metal or non-metallic materials are made into parts or products with required shape by using various presses and special tools installed on the press. This special tool is collectively referred to as mold.
Injection molding process description: mold is a tool to produce plastic products. It is composed of several groups of parts, and the combination has a forming cavity. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the injection mold cavity, and cooled and shaped in the cavity. Then, the upper and lower molds are separated, and the products are ejected from the mold cavity through the ejection system. Finally, the mold is closed for the next injection. The whole injection process is cyclic.
