IMPREGNATION MANDREL COMPRISING A VACUUM BAG FOR THE PRODUCTION OF A GAS TURBINE CASING FROM COMPOSITE MATERIAL

摘要

The invention relates to an impregnation mandrel for the production of a gas turbine casing made from composite material comprising: a mandrel (100) having a central wall (102) and two side plates (104a 104b); compaction bars (106a 106b) each including (i) a wedge (108a 108b) intended to bear against the fibrous reinforcing part covering the angles formed between the central wall and the side plates of the mandrel and (ii) an attachment flange (110a 110b) intended to be attached to the corresponding side plate of the mandrel; a flexible casing (118) forming the vacuum bag and intended to be applied at least against the fibrous reinforcing part covering the central wall of the mandrel; and means (120 124) for injecting resin into a space (122) defined between the vacuum bag and the mandrel at one of the longitudinal ends of the fibrous reinforcement and for extracting same at the opposite end.