Injection Moulding
Posted on 31/12/2018 Category:
The method of forming objects from granular or powdered plastics, most often of the thermoplastic type, in which the materials is fed from a hopper to a heated chamber in which it is softened, after which a ram or screw forces the material into a mould. Pressure is maintained until the mass has hardened sufficiently for removal from the mould. In the case of Rubber, the unvulcanised solid material is preheated and then injected through a series of runners into the closed cavity, where pressure and temperature is maintained until cure is achieved.
