Injection Moulding
by Mir Aqeel
1. Stage 1
1.1. Granulated (pallets) or powdered thermoplastic plastic is fed from a hopper into the Injection Moulding machine.
2. Stage 2
2.1. The Injection Moulding machine consists of a hollow steel barrel, containing a rotating screw or extruder screw (Archemidial Screw). The screw carries the plastic along the barrel to the mould.
2.1.1. Single Screw Extruder
2.2. There are two types of extrusion which is the single screw and twin screw extrusion.
2.2.1. Twin Screw Extruder