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PMO-EMS 组合调控在钢电磁连铸中的应用
Application of PMO-EMS Combined Control Technology in Steel Electromagnetic Continuous Casting
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- DOI:
- 作者:
- 李辉成 1 ，刘海宁 2 ，谢 有 1 ，豆乃远 1
LI Huicheng 1 , LIU Haining 2 , XIE You 1 , DOU Naiyuan 1
- 作者单位:
- 1.常州中天钢铁集团有限公司；2.上海大学 先进凝固技术中心
Changzhou Zenith Iron and Steel Group Co., Ltd.,; 2. Center for Advanced Solidification Technology, Shanghai University
- 关键词:
- PMO-EMS 组合调控；工艺优化；连铸；电磁冶金
PMO-EMS combined regulation technology; process optimization; continuous casting; electromagnetic metallurgy
- 摘要:
- 利用 PMO-EMS 方坯均质化组合调控技术，通过二冷水比水量、 E-EMS 、 F-EMS 以及 PMO 电磁参数优化，
对比研究了提升连铸拉速，以期改善铸坯中心质量，实现提质增产。 使用碳硫分析仪对铸坯横断面碳含量分布检测。 结
果表明，工艺参数优化后，铸坯中心偏析和中心偏析平均评级降低，同时低级别的占比比例提高（质量好），高级别的占
比比例降低（质量差）。 采用 PMO-EMS 组合调控均质化技术，在高拉速条件下仍可以使铸坯内弧到外弧的碳偏析指数
控制在 1±0.05 内。
In order to improve the center quality of the billet and realize the quality and production increase, the
improvement of continuous casting speed was comparatively studied by using the combined control technology of
PMO-EMS homogenization, through the optimization of the specific water amount of secondary cold water, E-EMS,
F-EMS and PMO electromagnetic parameters. Carbon and sulfur analyzer was used to detect the distribution of carbon
content in cross section of billet. The results show that the average grade of center segregation and center segregation
decrease after the optimization of process parameters, while the proportion of low grade is increased (good quality) and the
proportion of high grade is decreased (bad quality). The carbon segregation index from inner arc to outer arc of billet can
be controlled within 1 ±0.05 under the condition of high drawing speed by using PMO-EMS combined control
homogenization technology.