利用自制的氧浓差电池测定了120t顶吹转炉终点熔池中的氧活度,用多元回归方法在电子算计机上计算出了钢液氧活度与钢液温度。碳,锰含量及熔渣氧化铁的经验关系式。低碳区的碳氧关系可用于测氧定碳,高碳区的碳氧关系可作为高碳钢铁合金加入量计算的依据。 The oxygen activity in the finish puddle of 120t top-blown converter was measured by the self-made oxygen concentration cell. The oxygen activity of the liquid steel and the temperature of the molten steel were calculated by the multiple regression method on the electronic computer. Carbon, manganese content and slag iron oxide empirical relationship. The relationship between carbon and oxygen in the low-carbon zone can be used to determine oxygen and the carbon-oxygen relationship in the high-carbon zone can be used as the basis for calculating the amount of high-carbon steel and alloy.