| 摘要 |
<p>An apparatus for forming composite articles which comprises a stretchable or pre-shaped membrane (12) adapted to be placed on a mould and a rigid framework (10) carrying an outer seal (14, 14a), there being an inner seal (18, 18a) attached to the membrane and located between the membrane and the inner side of the rigid framework, the membrane being attached to the seal at the lower-most point thereof. The seal may be affixed to the membrane only, and not to the vacuum manifold. The manifold may comprise a flat bar and the vacuum is then introduced into the cavity (22) by having one or more vacuum valves (26) passing through the bar directly into the cavity. A rigid channel (34) may be placed in the cavity to support the seals.</p> |
