Structural Design and Optimization of Submerged Nozzle in Rectangular Molten Steel Casting Mould
ZHANG Cai-jun SUN Xue-yu SHI Jing-pei LIU Tao ZHU Li-guang
School of Metallurgy and Energy, Hebei United University Guofeng Iron and Steel Co. School of Metallurgy and Energy, Hebei United University School of Metallurgy and Energy, Hebei United University School of Metallurgy and Energy, Hebei United University
Abstract：A rectangular continuous casting machine in a company is taken as the research subject. Combined with numerical simulation and physical simulation, the liquid steel flow behaviors and temperature distribution in the mold are systematically analyzed. The liquid steel flow field and heat flux distribution are calculated respectively at different outlet rake angles, immersion depths and casting speeds. The corresponding technological parameters are optimized as well. It is demonstrated that the best structure of submerged nozzle for 150 mm×330 mm rectangular cast bloom is the side opening for a runway shape with 30 mm inner diameter and 25° side opening angle.
2013, Vol. 13 
