| 摘要 |
Tool for injection of a polymer resin in a fibre preform for the production of a rotating part made from composite material (20), comprising an internal cavity with an undercut (20A), characterized in that, in order to enable demoulding of said part once the injection and polymerization of said polymer resin is effected, said tool comprises, disposed at least in said internal cavity, on the one hand a segmented ring (40) formed of at least three joined inserts (40A-40D), one of which (40A) forms an arched centrepiece and the external surface of which matches said internal cavity with an undercut, and the internal surface comprising a natural undercut, and on the other hand a conical barrel (32) rigidly attached to said internal surface of said segmented ring for which it provides the support and the withdrawal of which, once detached from said segmented ring, occurs along said natural undercut created by said internal surface of said segmented ring. |
