PRODUCTION OF CARBON/CARBON COMPOSITE MATERIAL

摘要

PURPOSE:To simplify the extraction of a mandrel from a pipe-shaped composite material after molding. CONSTITUTION:A paper type cellulosic release agent 5 is preliminarily wound around the outer periphery of a mandrel l and a carbon fiber 2 is wound therearound to mold a preform 4. After the preform 4 is impregnated with liquid pitch or a matrix resin, the impregnated preform 4 is subjected to carbonization treatment and the mandrel 1 is extracted to obtain a pipe-shaped carbon/ carbon composite material.