Application of PMO-EMS Combined Control Technology in Steel Electromagnetic Continuous Casting

Author of the article:LI Huicheng 1 , LIU Haining 2 , XIE You 1 , DOU Naiyuan 1

Author's Workplace：Changzhou Zenith Iron and Steel Group Co., Ltd.,; 2. Center for Advanced Solidification Technology, Shanghai University

Key Words：PMO-EMS combined regulation technology; process optimization; continuous casting; electromagnetic metallurgy

Abstract：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.