| 摘要 |
The invention concerns a moulding unit comprising, between two components consisting of a mould element (22) and its support (18), a compensating chamber (56) wherein a pressurised fluid is injected to move apart the mould element (22) from its support (18). The invention is characterised in that the chamber (56) is delimited by a membrane (42) comprising a peripheral seal (44) with a lip, the membrane (42) being urged to press against one of the components (22, 18) and the seal lip (44) being urged to be tightly pressed against the other of the components (18, 22).
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