镇静钢通常采用高炉矽铁及锰铁在炉内作预先脱氧,预计可促进减少成品钢的污染及减少非金属夹杂物,提高钢的质量。炼钢工作者会议(指1946年的炼钢工作者会议——译者按)推荐了下述预先脱氧的顺序:当含碳量达到中间规格时,往熔地里加入锰铁(按其含量达到下限计算),8—10分钟後加入预热至600—700℃的 The killed steel is usually pre-deoxidized in the furnace by using blast furnace ferrosilicon and ferromanganese. It is expected to reduce the pollution of finished steel and reduce non-metallic inclusions and improve the quality of the steel. The Steelworkers Conference (refer to the Steelmaker Conference, 1946) recommends the following pre-deoxidation sequence: When the carbon content reaches the intermediate specification, add ferromanganese Reach the lower limit calculation), 8-10 minutes after adding preheated to 600-700 ℃