Method of producing parts of composite material, fibrous substrate for the production of piece of composite material, and composite material comprising fibrous reinforcement piece densificado matrix

摘要

Method of producing parts of composite material, fibrous substrate for the production of piece of composite material, and the piece of composite material including reinforcing fibrous densificado matrix.A piece of material of the composite is made by the production of a prototype fibrous (20) forming holes (22) extending out from inside of the prototype of at least one face in densification of prototype with a matrix formed at least in part by a process of infiltration by steam Chemical (CVI).The orifcios (22) are formed by removal of material from the prototype with fibers being ruptured, for example mechanical treatment using a jet of water under pressure, the arrangement of the fibers in the prototype with the holes being substantially not changed compared with the initial arrangement before the The holes have been formed.This allows the gradient of density is greatly reduced, and it is possible in only a single cycle of densification to obtain a density, in the state of technique, requires a plurality of cycles separated by intermediate scalping.