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MOTOR
POLYPROPELYENE GRANULES
HEAT
HEAT
MOULD
ARCHIMEDEAN SCREW
HOPPER
COMPRESSED AIR
1. GRANULES OF POLYPROPYLENE ARE ADDED TO THE HOPPER.
2. THE GRANULES FALL ON TO THE ARCHIMEDEAN SCREW WHICH PUSHES THEM
THROUGH THE HEATER. 3. THE GRANULES MELT AND BECOME
MOULDABLE. 4. AS THE MOLTEN POLYPROPYLENE IS FORCED INTO THE MOULD, A ‘JET’ OF COMPRESSED AIR
FORCES IT TO THE OUTSIDE WALL OF THE MOULD, FORMING THE BODY OF THE
CONTAINER. 5. WHEN THE POLYPROPYLENE COOLS, IT CAN
BE REMOVED FROM THE MOULD.
MOULDING UNIT
BARREL ANDARCHIMEDEAN
SCREW
DRIVEUNIT
HOPPER
INJECTION MOULDING
POSTER - INJECTION MOULDING
Can be enlarged to be a poster or simply used as an information sheet.
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For more information on injection moulding: http://www.technologystudent.com/equip1/inject1.htm
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www.technologystudent.com © 2017https://www.facebook.com/groups/254963448192823/WORLD ASSOCIATION OF TECHNOLOGY TEACHERS V.Ryan © 2017
www.technologystudent.com © 2017https://www.facebook.com/groups/254963448192823/WORLD ASSOCIATION OF TECHNOLOGY TEACHERS V.Ryan © 2017
For more information on injection moulding: http://www.technologystudent.com/equip1/inject1.htm