1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China; 2. College of Metallurgy and Energy, Collaborative Innovation Center for High Quality Steel Continuous Casting of Hebei Province, Tangshan 063009, Hebei, China; 3. Tangshan Branch, Hebei Iron and Steel Co., Ltd., Tangshan 063000, Hebei, China; 4. Materials Science, Hebei University of Science and Technology and Engineering College, Shijiazhuang 050018, Hebei, China
Abstract：The growth rate of slab shell in the mould of ultra-high speed continuous casting funnel has a significant effect on the surface quality of slab. Based on the node temperature inheritance algorithm (NTI), the three-dimensional transient thermal conductivity model of molten steel solidification in mold was established by using ANSYS finite element software, and the influence of casting temperature and casting speed on the heat transfer behavior of thin slab was analyzed. The results show that with the increase of casting speed from 4.0 to 6.0 m/min, the maximum thickness of slab shell at the exit of mold decreases from 26 to 12.8 mm, and the maximum surface temperature of slab shell at the exit of mold increases from 1 209 ℃ to 1 305 ℃. However, the increase of casting temperature from 1 550 ℃ to 1 560 ℃ has little effect on the surface temperature and thickness of slab shell.
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2021, Vol. 40 
