METHOD FOR MANUFACTURE FROM CARBON-CONTAINING COMPOSITE MATERIAL OF PRODUCT HAVING HOLLOW Russian patent published in 1996 - IPC

FIELD: manufacture of parts for aviation and rocket-spacecraft technology. SUBSTANCE: method for manufacture from carbon-containing composite material of product having hollow includes formation of reinforcing cage of fibrous filler, for instance, carbon fabric, impregnation with binding agent; installation of insertion member of the same material made in form of hollow; installation of split gasket from steel foil or material with melting temperature not below the impregnation temperature between reinforcing cage and insertion member with a clearance in the plane square to direction of pressing. Clearance measures 0.9-1.08 value of linear pressing of insertion member. Blank is pressed and hardened. Insertion member and gasket are removed by machining. In manufacture of product from carbon-carbon composite material, the blank after hardening is additionally carbonized and impregnated with carbon binding agent. The products manufactured by the offered method feature high strength and have no cracks, lamination or irregularity in density. EFFECT: higher efficiency. 3 cl, 2 dwg, 2 tbl