METHOD FOR INJECTION OF FILLER-CONTAINING SUSPENSION INTO FIBROUS STRUCTURE AND METHOD FOR MANUFACTURE OF PART OF COMPOSITE MATERIAL Russian patent published in 2022 - IPC C04B35/622 C04B35/80 B29C70/24 

FIELD: molding.

SUBSTANCE: invention relates to a method for manufacturing parts of composite material by a liquid-phase method. According to the invention, injection of a filler-containing suspension into a fibrous structure having three-dimensional or multilayered weaving is carried out using at least one hollow needle communicating with a device supplying the filler-containing suspension, while each needle pierces the thickness of the fibrous structure, and it is moved between the first side and the second opposite side of the fibrous structure in such a way that to inject the filler-containing suspension into the fibrous structure to one or several certain depths. Each needle is movable in at least one direction. The needle or needles is stopped in intermediate positions between two sides of the fibrous structure, and a certain dose of the filler-containing suspension is injected. Threads of the fibrous structure and suspension filler are made of heat-resistant ceramic materials.

EFFECT: obtaining material or part with low content of macropores and the possibility of adaptation of the method to different geometrical shapes of performed parts.

10 cl, 6 dwg