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Plastics (GENERAL MODEL OF POLYMER PROCESSING (Melt flow (Flow and shaping…

- - - - Plastics material is placed in a mold cavity.
      -  Formed by heat and pressure
      -  Normally for thermoset compounds.
    - - To reduce pressure & production time: preheated with IR, induction or other heating
      -  Screw extruder:  Reduce recycle time, increase output, For preformed slugs that are loaded into the mold cavity