研究结果表明，向钢液中加入形核剂可有效地扩大等轴晶区。
The results show that adding medium carbon nucleating agents into high carbon steel grade can effectively enlarge equiaxed grain zone and fine grain size;
减少转炉下渣量及对顶渣进行改质可减轻炉渣向钢液供氧程度；
Reduction of slag takeover and modifying top slag can decrease the degree of oxygen pickup in molten steel;
研究高温下耐火材料的相对稳定性及在真空熔炼超低氧钢过程中炉衬材料向钢液供氧的热力学条件和动力学规律。
The reason and mathematic analysis for carbon pick up from mold flux have been investigated in ultra low carbon steel.
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