论文部分内容阅读
对比分析了生产低碳铝镇静钢采用RH两种不同处理模式的工艺特点和洁净度差异,结果表明:工艺路线1的RH到站渣中w(T.Fe+Mn O)=5%~12%,而工艺路线2的RH到站渣中w(T.Fe+Mn O)稳定控制在2%以内,工艺路线1精炼过程中w(Als)损失较工艺路线2高约54×10-6;工艺2夹杂物有效去除时间平均为64 min高于工艺路线1的45 min;工艺路线1结晶器钢水w(T.O)较工艺路线2高13×10-6,工艺路线1结晶器钢液中的夹杂物分布面积比高于工艺路线2,同时工艺路线1钢水样中,尺寸在5μm以上的夹杂物占10.6%,高于工艺路线2的3.6%。针对不同RH精炼工艺分别提出了相应的优化措施。
The process characteristics and cleanliness difference of two different treatment modes for the production of low carbon aluminum killed steel were compared and analyzed. The results show that: (T.Fe + Mn O) = 5% ~ 12 %, While the w (T.Fe + Mn O) in process stream 2 was steadily controlled within 2%. The loss of w (Als) in process 1 was about 54 × 10-6 higher than that in process 2 ; Process 2 inclusions effective removal time averaged 64 min higher than the process route 1 45 min; process route 1 mold steel w (TO) higher than the process route 2 high 13 × 10-6, the route 1 mold steel liquid Of inclusions is higher than that of the route 2, while inclusions of size 5 μm or above occupy 10.6% of the molten steel in the route 1, which is higher than 3.6% of the route 2 of the process. According to different RH refining process, the corresponding optimization measures are put forward respectively.