对钢中T[O]和夹杂物含量的控制是生产高洁净钢的关键技术。提出一种全新的洁净钢生产工艺--反应诱发微小异相净化钢水技术，设计并采用转盘造球工艺制备了一种具有该种功能的复合球体，研究了复合球体在炼钢温度下的爆裂反应，并在转炉炉后、RH精炼炉开展了复合球体加入的工业现场试验研究。结果表明，反应诱发微小异相净化钢水工艺是一种成本低、高效率、简便易行的钢水净化技术。采用这种工艺可以降低钢水传输过程温降，促进LF精炼快速成渣，使LF升温速率提高2℃/min，缩短LF炉精炼处理周期；IF钢铸坯平均全氧质量分数从14.2×10-6下降到9.69×10-6；铸坯中磷质量分数最低可以达到30×10-6，从而实现快速深脱磷。
Decreasing the total oxygen content and the inclusion removal is the key technique to produce the high purity steel.A novel cleanness steel production technology due to the dispersed in-situ phase induced by the composite ball explo-sion reaction has been put forward. A composite ball with this function has been designed and prepared using a laboratory model batch type balling disc and the industrial experimental investigations have also been carried out. The results indicate that this novel technique is a low-cost and high efficiency cleanness steel production method, which can realize quick slag forming, fast dephosphorization and fine inclusion removal. Temperature drop during transferring is small. The heat-up rate during LF has been increased for more than 2℃/min and the refining period has been shorten for 3-8 min. Average total oxygen in the as-cast slab can be decreased from 14.2 × 10-6 to 9.69 × 10-6. The lowest phosphorous in the casting bland can approach to 30×10-6 after its treatment.
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