Ⅰ引言某些电石墨化碳素制品,如碳刷,是由各种不同的炭素原材料焦碳、碳黑、沥青粘结剂制成的.这些制品的ooL衍射图形被发现是不对称的,如图1所示。众所周知,碳黑的石墨化明显地与焦碳不同。例如、沥青焦经3400℃热处理,Co值是6.718(?),而炭黑,诸如热黑(thermalblack)、槽黑(channelblack) I. INTRODUCTION Certain electro-graphitized carbon articles, such as carbon brushes, are made from a variety of carbonaceous raw materials, coke, carbon black, and bituminous binder.The ooL diffraction patterns of these articles were found to be asymmetric, As shown in Figure 1. It is well known that graphitization of carbon black is clearly different from coke. For example, the pitch coke heat treatment at 3400 ℃, Co value is 6.718 (?), And carbon black, such as thermal black (thermalblack), channel black (channelblack)