Verfahren zur Herstellung von grossen Verbundkörpern und nach diesem Verfahren hergestelltes Luftschraubenblatt, insbesondere für Windmühlen

摘要

The method moulds especially open- or closed composite sections of large dimensions. One or more thickness of mixed thread- or fibre materials (18), comprising thermoplastic and reinforcement, are placed in the mould (14, 16) together with an envelope. This is inflated on mould closure. Thus the material is flattened onto the wall of the mould. Heating under pressure to the thermoplastic melting temperature, impregnates the reinforcement. Cooling and extraction from the mould follow. The mould is two-part; one (14) being placed on the other (16). The material is inserted into the mould section (14) and a film of the thermoplastic is placed over it.