| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an isotropic carbon material by which the carbon material having a density higher than that of the conventional one, >=1.85 g/cc bulk density can be produced without causing crack in high yield. SOLUTION: This method for producing an isotropic carbon material is characterized in that a compact obtained by pulverizing carbonic cokes so as to have 4-20 μm size heat-treating the pulverized cokes at >=2,000 deg.C, mixing and kneading the heat-treated cokes with a binder pitch in 100-150% outer percentage, further subjecting the kneaded product to a kneading treatment at 300 deg.C to remove volatile components, repulverizing the treated product to provide fine powder having 10-30 μm average particle diameter, and subjecting the obtained fine powder to a cold isotactic pressing molding is subjected to a heat treatment at 2,000-3,000 deg.C in a nitrogen or reductive atmosphere to fire and graphitize the compact, after once or twice optional densifying treatments, and graphite boards having good thermal conductivity are set on upper and lower surface of the compact in the heat treatment for firing or densifying. |
