Method and apparatus for moulding parts made from composite materials

摘要

The invention concerns a method of molding a part (1′) made from composite material. This method comprises a step of injecting a liquid (7) under pressure into a closed mold (2) containing a fibrous pre-form (1) previously impregnated with resin. Said liquid (7) comes into contact with the resin but it is substantially inert and immiscible with respect thereto. The invention also concerns an apparatus for carrying out this method.

主权项

1. A method of moulding a part made from composite material, comprising:
placing a fibrous preform impregnated with thermosetting resin in a mould having a contour that closely follows the contour of the preform; closing the mould; applying vacuum to the preform and to a liquid comprising a liquid polymer that is substantially inert and immiscible with respect to the thermosetting resin; injecting the liquid under pressure into the closed mould, the liquid contacting the thermosetting resin; curing the resin while the liquid is maintained under pressure; and, after said curing, extracting the liquid from the mould and subsequently opening the mould.