Manufacturing method of C / C-SiC composite material parts and their products

摘要

A method for manufacturing a C / C-SiC composite material component and a product thereof. The method includes the following steps. (A) A carbon fiber / phenolic resin composite powder is produced by a solvent evaporation method. (B) forming the carbon fiber composite powder into an initial blank of the part by 3D printing technique according to a three-dimensional model of the desired part; (C) A primary densification treatment is performed on the initial blank to obtain a C / C porous body. (D) The C / C porous body is subjected to melt siliconization under vacuum, high-temperature silicon removal, and second-order high-density treatment in order to obtain a final C / C-SiC composite material part. By this method, a C / C-SiC composite part having a complicated structure can be formed, the production cycle is short, the cost is low, and the obtained C / C-SiC composite part has a low silicon residue. , With excellent performance. [Selection diagram] Fig. 1