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TWO-STAGE SCREW-PLUNGER INJECTION MOLDING MACHINE [1 record]

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Record 1 1998-02-19

English

Subject field(s)
  • Plastics Manufacturing
OBS

... preplasticizing machine. Of the equipment in use today, 95% is preplasticizing; either with a reciprocating screw or a screw-pot. In a reciprocating screw the melted material is collected in front of the screw, which continues to move backward against a controlled pressure as more material is melted. The area where the melted material is collected corresponds to the pot in a two-stage machine. When the screw is pushed forward by the hydraulic injection cylinder(s), a check valve (nonreturn valve) is closed. At this time the screw and nonreturn valve act like a plunger.

Key term(s)
  • two-stage screw-pot injection-moulding machine
  • two-stage screw-pot injection molding machine
  • two-stage screw-pot injection moulding machine
  • two-stage screw-plunger injection-molding machine
  • two-stage screw-plunger injection-moulding machine
  • two-stage screw-plunger injection molding machine
  • two-stage screw-plunger injection moulding machine

French

Domaine(s)
  • Plasturgie

Spanish

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