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运用有限元软件ABAQUS建立钢包包衬的线性弹性模型,模拟钢包预热过程包衬的热应力,分析包衬厚度及其材料物理性能对包衬内最大热应力和钢壳表面温度的影响;采用偏最小二乘法建立包衬厚度及材料物理性能与包衬内最大热应力、钢壳表面温度间的预报模型。结果表明,工作衬材料物理性能对包衬最大应力和钢壳表面温度起主要影响作用;较之于无绝热衬,有绝热衬钢包永久衬材料物理性能对钢包热应力和钢壳表面温度的影响作用显著降低。
The finite element software ABAQUS was used to establish the linear elastic model of the ladle liner to simulate the thermal stress of the liner during the ladle preheating process. The influence of the liner thickness and the physical properties of the liner on the maximum thermal stress and the surface temperature of the liner was analyzed. Partial least square method was used to establish the forecast model between the thickness of the liner and the physical properties of the liner and the maximum thermal stress in the liner and the surface temperature of the steel shell. The results show that the physical properties of the working lining material have a significant effect on the maximum stress of the lining and the temperature of the steel shell surface. Compared with the thermal insulation lining, the thermal insulation of the ladle has a significant effect on the thermal stress and the surface temperature of the steel shell The effect is significantly reduced.