The flow, solidification, and solute transport behaviors in the 380 × 280 mm² bloom center under the effect of final electromagnetic stirring (F-EMS) were investigated using a mathematical model. The results of nail shooting tests and infrared carbon-sulfur analyses are in good agreement with the simulated solidification and carbon concentration results. When F-EMS was installed 13.6 m below the meniscus with a frequency of 8.0 Hz, the maximum tangential velocity at the solidification front increased from 0.013 m/s to 0.023 m/s, and the liquid fraction at the computational outlet decreased from 0.7827 to 0.7256 as the current intensity increased from 300 A to 600 A. For each 100 A increase in the current intensity, the temperature of the mushy steel in the bloom center decreased by an additional 2.4 K. When the current intensity was maintained between 300 A and 400 A, the negative segregation band in the newly solidified shell was eliminated, the uniformity of the carbon distribution around the bloom center was enhanced, and the centerline segregation was noticeably improved.

380 × 280 mm ^{2 中}的流动、凝固和溶质输运行为使用数学模型研究了最终电磁搅拌 (F-EMS) 作用下的布隆中心。射钉试验和红外碳硫分析的结果与模拟凝固和碳浓度结果非常吻合。当 F-EMS 安装在弯液面下方 13.6 m 处，频率为 8.0 Hz 时，凝固前沿的最大切向速度从 0.013 m/s 增加到 0.023 m/s，计算出口处的液体分数从 0.7827 减少到0.7256 随着电流强度从 300 A 增加到 600 A。对于电流强度每增加 100 A，大方坯中心的糊状钢的温度再降低 2.4 K。当电流强度保持在 300 A 和400 安，