BORON CARBIDE-SILICON CARBIDE COMPLEX CARBON MATERIAL HAVING OXIDATION RESISTANCE, CRUCIBLE FOR SINTERING, CRUCIBLE FOR VACUUM DEPOSITION, DIE FOR CONTINUOUS CASTING, CRUCIBLE FOR MELTING METAL, ROLLER FOR TRANSPORTING GLASS, UNIFORMLY HEATING PIPE FOR ANNEALING STEEL WIRE MATERIAL, JIG FOR HIGH-TEMPERATURE BURNING AND JIG FOR HOT PRESS USING THE COMPLEX CARBON MATERIAL

摘要

PROBLEM TO BE SOLVED: To obtain a B4C-SiC complex carbon material having an economically formed dense SiC layer having excellent oxidation resistance and abrasion resistance at a fixed part (the whole face or a part) of the surface layer part of a carbon base by a simpler method than a CVD method or a CVR method. ;SOLUTION: This boron carbide-silicon carbide complex carbon material has an outermost surface layer part containing B4C-SiC in 3-20 m thickness on the surface layer part of a carbon base and forms a SiC-containing layer in 1 mm thickness on a SiC-containing complex layer. The boron carbide-silicon carbide complex carbon material having oxidation resistance is applied to the whole or part of the surface of a crucible for sintering, a crucible for vacuum deposition, a die for continuous casting, a crucible for melting a metal, a roller for transporting glass, a uniformly heating pipe for annealing a steel wire material, a jig for high-temperature burning and a jig for hot press.;COPYRIGHT: (C)2000,JPO