根据京唐高拉速试验特点，结合板坯连铸机设备和洁净钢连铸工艺特点和要求，建立连铸板坯凝固传热模型并结合射钉法测量综合预测了1.9～2.4 m/min高拉速条件下铸坯的凝固坯壳厚度和凝固终点位置。综合研究表明，结合射钉试验和数值模拟能更精确跟踪铸坯的凝固进程，为高拉速试验提供准确的凝固信息，并能为评价连铸机综合冷却能力、优化二冷制度和轻压下工艺提供合理的参考信息。
According to the high casting speed experiment at the plant of Shougang Jingtang United Iron and Steel Co., Ltd.,the rivet pin shooting technique has been adopted for the measurement of solidifying shell thickness to verify the thermal transformation model. It is shown that the models could meet the requirement of the accurate process control dur-ing 1.9-2.4 m/min high casting speed,if only the stability and precision of the caster structure and water spraying opera-tion are in good conditions. And combined with mathematic model and rivet pin shooting,the solidification process can be predicted accurately to optimize the secondary cooling and soft reduction technique.
参考文献
| [1] | 殷瑞钰.关于高效率、低成本洁净钢平台的讨论--21世纪钢铁工业关键技术之一[J].中国冶金,2010(10):1-10. |
| [2] | 殷瑞钰.高效率、低成本洁净钢“制造平台”集成技术及其动态运行[J].钢铁,2012(01):1-8. |
| [3] | 张福明;崔幸超;张德国;罗伯钢;魏钢;韩丽敏.首钢京唐炼钢厂新一代工艺流程与应用实践[J].炼钢,2012(2):1-6. |
| [4] | 张福明;颉建新.冶金工程设计的发展现状及展望[J].钢铁,2014(7):41-48. |
| [5] | 罗伯钢;张丙龙;袁天祥.低成本高效洁净钢体系生产实践[J].中国冶金,2012(11):30-34. |
| [6] | 杨春政.新一代钢铁流程运行实践[J].钢铁,2014(07):30-40. |
| [7] | 杨春政;魏钢;刘建华;宋军涛.高效低成本洁净钢平台生产实践[J].炼钢,2012(3):1-6,10. |
| [8] | 黄琦;熊霄;邓小旋;王新华;王万军;姜敏.凝固坯壳对高拉速板坯连铸结晶器钢水流动特征的影响[J].钢铁,2015(1):37-42. |
| [9] | 殷瑞钰.我国炼钢-连铸技术发展和2010年展望[J].炼钢,2008(06):1-12. |
| [10] | 景财良;罗伯钢;田志红.首钢京唐3号铸机高拉速工艺研究与实践[J].钢铁,2014(3):46-50. |
| [11] | 钱宏智;兰鹏;张家泉;崔立新.非平衡凝固对铸坯末端两相区长度的影响[J].特殊钢,2010(2):25-28. |
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