METHOD FOR MANUFACTURING NEEDLE COKE POWER, NEEDLE COKE POWDER, METHOD FOR MANUFACTURING GRAPHITE COMPACT, GRAPHITE COMPACT, AND GRAPHITE ELECTRODE

摘要

Provided is a method for manufacturing a needle coke powder, the method including: preparing a pre-sorted powder including a plurality of needle coke particles, and measuring an order parameter representing the degree of orientation of crystals included in the needle coke particles, such orientation in relation to the lengthwise direction of the needle coke particles; and sorting needle coke particles on the basis of the order parameter value to obtain a needle coke powder comprising a plurality of sorted needle coke particles.