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Thermoplastic granules are added into a hopper, these granules fall into a Archimedes Screw and are push towards a steel dye. The hydraulic ram at the base of the screw forces the screw forwards to make sure all of the plastic has been extruded. At the end of the process you are left with a shape of a continuous cross section e.g. a pipe.

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What are the advantages in extrusion moulding?

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