CARBON FIBER-REINFORCED CARBONACEOUS FRICTION MATERIAL AND PRODUCTION THEREOF

PURPOSE:To provide the subject material comprising a laminated structure prepared by filling the spaces of the laminated chops of carbon fiber knitted strings or twisted strings with a short carbon fiber-containing pitch binder, and having a light weight, a high mechanical strength under high speed driving, and a good braking characteristic. CONSTITUTION:A method for producing the objective material is characterized by press-molding the chops of carbon fiber knitted strings or twisted strings covered with a pitch binder such as coal tar pitch containing short carbon fibers and subsequently carbonizing and graphitizing the molded product to bury the spaces of the chops.. A mixture of the chops having different lengths is preferably employed as the chops of the strings. The mixture is especially preferably a mixture of 30-60mm long chops with 5-20mm long chops in a ratio of 8:2 to 6:4.