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本文利用了前人关于熔滴在渣池中行为的研究成果和渣池中有关传热规律的实验资料,确定了渣池—金属熔池界面上的边界条件。通过实验确定了输入功率与熔化速度的关系。而后建立了包括有金属熔池、两相区、凝固锭在内的电渣锭温度场的数学模型,最后进行数值计算,得到6种不同熔化速度和两种不同渣量的熔池形状,并与实验进行比较,其结果是令人满意的。
This paper makes use of the previous research results on the behavior of droplet in the slag pool and experimental data on the heat transfer law in the slag pool, and determines the boundary conditions on the slag pool-metal pool interface. The relationship between input power and melting speed was experimentally determined. Then, the mathematical model of the temperature field of the electroslag ingot, including the metal pool, the two-phase zone and the solidified ingot, was established. Finally, the numerical calculation was carried out to obtain the shape of the molten pool with six different melting rates and two different slag volumes Compared with the experiment, the result is satisfactory.