Injection molding (IM) is a versatile process used to shape thermoplastic materials to obtain final molded products (generally with thick sides and/or to achieve complex shapes).
This type of mold allows to produce in great quantity and to reproduce extremely precise dimensions.
The process follows three stages:
- The liquefaction of resin granules using a screw and machine barrel heated through high pressure.
- The injection of an average quantity of melted material using a runner system inside the mold. The liquefied material placed on the cold sides of the mold then becomes hard thus giving it shape.
- The finished product is then taken out when sufficiently cold so as to obtain the final form wanted