| 摘要 |
PURPOSE:To manufacture a molded carbon material with superior thermal impact resistance by blending needlelike coke having a specified pore vol. with a binder followed by heating and graphitization. CONSTITUTION:Coke hydrocarbon starting material is heated to form needlelike raw coke by a delayed coking method. This raw coke is calcined at about 1,000- 1,600 deg.C and classified to separate needlelike coke having >=40, preferably 60-200 milli-cc/g pore vol. The resulting coke is then kneaded with a binder such as coal tar pitch, molded into the desired form, calcined at a high temp., and graphitized. |
