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本文用热态水模研究板坯连铸机中间包内钢水流动的规律.试验结果证实，由于中间包散热使钢水密度不均匀，在浮力作用下，钢水的流动状态与常密度时完全相反，板坯中间包内自然对流的影响不能忽略.
In this paper, the hot water model was used to study the regularity of the molten steel flow in the tundish of the slab caster. The experimental results show that the flow state of the molten steel is completely opposite to that of the normal density due to the buoyancy, The effect of natural convection in the slab tundish can not be ignored.