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以连铸坯凝固传热有限元数学模型研究了铸坯角部形状和气隙对坯壳凝固行为的影响研究结果表明：采用有限元法离散铸坯圆角能更合理地反映铸坯角部的几何和换热条件，从而可以更准确地研究角部换热条件对铸坯凝固行为的影响。角部气隙显著地降低了坯壳表面的换热，使铸坯偏角区成为热节区。此热节区是铸坯凹陷、皮下裂纹等缺陷和漏钢事故发生的诱因。
The casting solidification heat transfer finite element mathematical model was used to study the influence of corner shape and air gap on the solidification behavior of the slab. The results show that using the finite element method to separate the slab corner can more effectively reflect the corner of the slab Geometry and heat transfer conditions, which can more accurately study the corner heat transfer conditions on the slab solidification behavior. The air gap at the corner significantly reduces the heat transfer on the surface of the billet shell, making the billet corner region a hot nodal zone. This hot section is a slab depression, subcutaneous cracks and other defects and the cause of the breakout accident.