(1. College of Metallurgy and Energy， North China University of Science and Technology， Tangshan
063009， Hebei， China；2. Hebei Province High Quality Steel Continuous Casting Engineering
Technology Research Center， Tangshan 063009， Hebei， China；3. College of Materials Science
and Engineering， Chongqing University， Chongqing 400044， China)
Abstract：A two dimensional longitudinal slice heat transfer model of the initial solid shell was built to simulate the hook growing behavior according to the hook formation mechanism in the IF steel slab. The effect of casting parameters on the hook depth was discussed by combining metallographic experiments results. The research results show that the initial solidification process of the hook undergoes the stages of forming，melting and growing. Under the mathematical simulation condition，when the temperature of the liquid steel in the mold flowing out from the SEN is 1 555 ℃，the casting speed is 1.3 m/min and the shell runs away from the meniscus about 55.12 mm，the hook growth reaches a steady state，and the hook depth is 2.368 mm. The hook depth decreases with the increasing of the casting velocity，the oscillation frequency and the liquid steel temperature in the mold. The mathematical simulation result of the hook is basically consistent with the actual production practice.
肖鹏程，赵茂国，朱立光，何生平. IF钢连铸坯凝固钩数学模拟与试验[J]. 钢铁, 2019, 54(7): 49-55.
XIAO Pengcheng，ZHAO Maoguo，ZHU Liguang，HE Shengping. Mathematical simulation and experiment on #br# solidification hook of IF steel. Iron and Steel, 2019, 54(7): 49-55.
