Impregnation process is used to lift up the internal cell pressure (ICP) of EPP foam beads, makes them more flexible for filling into complex shape of molds and allow steam to pass through easily. The material is filled into a closed vessel and pressurized from top with air continuously for 10 hours.
Self Check
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Question # 3 - Which of the following processes of moulding is widely used for manufacturing of bottle caps and automotive dashboards?
Question # 4 - Complex shape of parts or components cannot be formed by the injection moulding process.
Question # 5 - Which of the following cooling systems is used in injection moulding process to increase solidification rate of components made?
