前言用石油焦炼硅铁曾有过论述。资料认为,炭素材料的石墨化开始温度为1600℃,在大于2500℃时结束,而石墨化开始温度范围也正是铁合金电炉进行还原反应的温度范围,石墨化性能越好,则化学活性越差,比表面和比电阻越小。石油焦属强石墨化炭素材料,因此用它冶炼铁合金,特别是硅质合金时,使电炉里的还原反应条件恶化。 Preface The use of petroleum coke ferrosilicon has been discussed. It is believed that the graphitization start temperature of the carbonaceous material is 1600 ° C and ends at more than 2500 ° C, and the graphitization start temperature range is just the temperature range of the reduction reaction of the ferroalloy furnace. The better the graphitization performance is, the worse the chemical activity , The specific surface and the smaller the specific resistance. Petroleum coke is a strongly graphitized carbon material, so when it is used to smelt iron alloys, especially siliceous alloys, the reduction reaction conditions in the electric furnace are deteriorated.