Injection moulding of functional cavities
A mould assembly and a method of use in injection moulding of a part having a functional cavity therein. The mould assembly has a recess to receive a hollow tubular insert intended to be placed in the mould assembly before the injection of a mouldable material into the cavity and to remain in the pa...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A mould assembly and a method of use in injection moulding of a part having a functional cavity therein. The mould assembly has a recess to receive a hollow tubular insert intended to be placed in the mould assembly before the injection of a mouldable material into the cavity and to remain in the part after moulding. A gas supply arrangement supplies pressurised gas to the hollow tubular insert at a selected stage during the injection process whereby to form the functional cavity in the part. |
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