| 摘要 |
The invention relates to an apparatus for facilitating extraction of supply conduits (4) for thermosetting resin from a mould cavity being under vacuum and partly filled with reinforcing material for producing composite pipes, the mouths of said supply conduits are placed initially at the lowest part of said mould cavity and is then progressively moved upwards in a position just below the surface of the introduced resin. To be able to extract the supply conduits from the mould cavity it is suggested according to the invention that a friction reduction means (1) is placed around each supply conduit (4). |
