5th International Conference on Advances in Solidification Processes (ICASP-5) 5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining (CSSCR-5)

Ming HE 1, 2, Xianliang LI 1, 3, Qingwei WANG1, 2, Qiang WANG 1, * 1 Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China 2 School of Metallurgy, Northeastern University, Shenyang 110819, China 3 School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China * Corresponding author: wangq@mail.neu.edu.cn Abstract: In the electromagnetic induction controlled automated steel teeming (EICAST) technology of ladle, the position and thickness of the blocking layer are critical factors to determine the coil installation position and the coil length. Therefore, it is also an important factor affecting the successful implementation of this new technology. In this paper, the influence of the molten steel refining temperature and the ladle containing time of molten steel on the position and thickness of the blocking layer were studied by numerical simulation method. The molten steel refining temperature and the ladle containing time are determined by the steel grades and the production processes, the position and thickness of the blocking layer can only be adjusted by changing the elements of alloy filled in the nozzle. Therefore, the influence of alloy compositions on the position and thickness of the blocking layer was also analyzed. To verify the accuracy of numerical simulation results, a large experimental platform was used to imitate the actual working condition of the ladle with the electromagnetic steel teeming system. The results show that the position of the blocking layer moves down with the increase of the molten steel refining temperature and the ladle containing time of molten steel. The thickness of the blocking layer decreases with the increase of the molten steel refining temperature, however, it increases with increasing of the ladle containing time of molten steel. In addition, the position and thickness of the blocking layer can be largely adjusted by changing the elements of the alloy filled in the nozzle, which is very important for the industrial implementation of the EICAST technology. Keywords: EICAST, refining temperature, containing time of molten steel, blocking layer, numerical simulation