反应诱发微小异相净化钢水  

Purification of liquid steel with fine heterophases induced by explosive reaction in RH ladles

作　　者：唐复平[1] 李镇[1] 王晓峰[1,2] 刘万山[1] 闻立时[2] 

机构地区：[1]鞍山钢铁集团公司,鞍山1140002 [2]中国科学院金属研究所,沈阳110000

出　　处：《北京科技大学学报》2009年第10期1235-1238,共4页Journal of University of Science and Technology Beijing

摘　　要：提出了一种夹杂物控制技术——反应诱发微小异相净化钢水技术,采用转盘造粒工艺制备了具有该种功能的复合球体,并在RH精炼后期加入上述球体进行工业现场试验.结果表明:反应诱发微小异相净化钢水技术是一种成本低、效率高且简便易行的夹杂物控制技术,它可以短时间(大约10min)内显著降低钢液中的非金属夹杂物的数量;与传统工艺相比,采用该技术对钢液进行处理后,铸坯中氧化物夹杂的数量明显减少,尺寸变小,铸坯的平均全氧T[O]最低可达6×10-6,吨钢成本可降低5～10元.Inclusions in liquid steel were removed with fine dispersed heterophases induced by the explosive reaction of composite spheres in a RH ladle. The composite spheres were produced with a rotating plate granulator and fed into liquid steel at the end of RH refining for industrial tests. The results indicate that the inclusion removal technology is of low cost, high efficiency and easy to operate. It can obviously decrease non-metallic inclusions in liquid steel in about 10 min. In comparison with conventional methods, the number of oxide inclusions decreases to a lower level, the inclusion size becomes finer, the total oxygen in the as-cast slab can approach to 6 × 10^-6 and the production cost for per ton of steel can be reduced by 5 to 10 yuan RMB.

关 键 词：RH精炼 夹杂物去除 复合球体 小气泡 渣洗 

分 类 号：TF703.54[冶金工程—钢铁冶金]