Method for producing ceramic composite parts by pressure injection of charging slurry into a porous mold

摘要

A method of making a composite part includes injecting a slurry (150) containing a powder of refractory ceramic particles (1500) under pressure into a fiber structure and fibers filled with the refractory ceramic particles (1500). Extracting the liquid (1501) of the slurry (150) that has passed through the fiber structure (10) while holding the powder of the refractory ceramic particles in the structure so as to obtain a preform (15). The injection tool includes a porous material mold (110) that includes an inner housing (113) in which the fiber tissue is disposed, and a slurry (150) is routed through at least one injection port (134) present in the injection tool. Is injected into the fiber structure (10) and reaches the inner housing (113) of the porous material mold (110). The tool was manufactured from a rigid material in which the porous material mold (110) is held while the slurry (150) is being injected under pressure and while the slurry liquid (1501) is being withdrawn. Further including an enclosure (130), the slurry liquid (1501) is drained through at least one vent (135) present in the rigid material enclosure.