Mathematical Modeling of Heat Transfer and Deformation of Bloom Tube Mold in Continuous Casting Process

The deformation of a bloom tube mold was investigated using an in-house-developed complex model considering the flow, heat transfer, and solidification as well as the copper tube stress strain. This model was validated by the cooling water temperature rise, solidification shell thickness, copper oxidized zone, and measured copper deformation. Based on this model, the heat transfer characteristics of the mold were analyzed. The deformation trends of the copper tube under different water pressures were compared. The results revealed that the deformation of the wide copper plate was mainly influenced by the cooling water pressure, whereas the deformation on the narrow side was primarily affected by the temperature field. Similarly, the corner distortion of the copper plate resulted mainly from the deformation of the wide and the narrow copper plates.