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基于ABAQUS模拟了钢锭模工况下的热应力分布,并用正交试验法分析了材料热物参数和结构参数对热应力分布的影响。结果表明,降低材料的弹性模量和热膨胀系数、减小钢锭模内径和外表面换热系数、增加材料的导热系数,能够降低灰铸铁钢锭模外表面的横向拉应力,而在常用范围内模锭比的影响并不显著。
Based on ABAQUS simulation, the thermal stress distribution under ingot mold condition was simulated. The influence of material parameters and structure parameters on thermal stress distribution was analyzed by orthogonal test. The results show that reducing the elastic modulus and thermal expansion coefficient of the material, reducing the inner diameter and outer surface heat transfer coefficient of the ingot mold and increasing the thermal conductivity of the material can reduce the transverse tensile stress on the outer surface of the ingot mold of gray cast iron, The effect of ingot ratio is not significant.