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依据电磁铸造大板坯铸造特点，设计了模拟大板坯变形过程的实验装置．通过动态和静态测量了Ａｌ，Ａｌ－４．５Ｃｕ合金（质量分数，％）板坯的不平直度的形成过程及最终的量值，考察了铸坯在不同宽厚比的条件下，不同工艺参数对平直度的影响．结果表明，板坯不平直度主要形成于板坯的凝固阶段；控制板坯表面温度是控制铸坯变形的关键因素．提高宽面在铸坯凝固过程的表面温度，改善宽面表面温度的不均匀性，可以有效地改善大板坯不平直度。
According to the casting characteristics of the electromagnetic slab casting, an experimental device was designed to simulate the deformation process of the slab. Through the dynamic and static measurement, the forming process and the ultimate value of the slab of Al-Al-4.5Cu alloy (mass fraction,%) were measured. The effects of different processes Effect of parameters on flatness. The results show that the slab unevenness mainly forms in the solidification stage of the slab. Controlling the slab surface temperature is the key factor to control the slab deformation. Raising the surface temperature of the slab during the solidification of the slab and improving the nonuniformity of the surface temperature of the slab can effectively improve the non-straightness of the slab.