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建立了板坯连铸结晶器三维有限元热弹塑性结构模型,计算了铜板变形及结晶器冷却结构对其影响规律.冷却结构和热力载荷决定了铜板热面变形行为,铜板变形量取决于冷却结构几何参数,并在铜镍分界处有较小变形突变;宽面热面中心线最大变形出现在弯月面下100mm处,窄面最大变形出现在弯月面和冷却水槽末端,且铜镍分界两侧变形曲线有明显的曲率波动;铜板加厚5 mm,最大中心线变形可增加0.05 mm,镍层对中心线变形影响不明显,1 mm的厚度变化仅在窄面引起最大0.01 mm的下降,冷却水槽对中心线变形影响也较小,水槽加深2 mm,最大中心线变形减少0.02 mm.
A three-dimensional thermo-elasto-plastic structural model of slab continuous casting mold was established and the influence of deformation and cooling structure of the mold on the structure of the slab continuous casting mold was calculated. The cooling structure and thermal load determine the deformation behavior of the copper plate. The deformation of the copper plate depends on the cooling The results show that the maximum deformation of the centerline of the wide hot surface occurs 100mm below the meniscus and the maximum deformation of the narrow surface appears at the end of the meniscus and the cooling sink. The curve of deformation on both sides of the boundary has significant curvature fluctuation. When the thickness of copper plate is increased by 5 mm, the maximum centerline deformation can be increased by 0.05 mm. The nickel layer has no obvious effect on the centerline deformation. The thickness change of 1 mm only causes the maximum 0.01 mm Down, cooling sink on the centerline deformation is also less affected, the sink deepens 2 mm, the maximum centerline deformation decreases 0.02 mm.