电渣重熔过程中金属熔池形状的数学模拟

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,确定了渣池一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,建立了包括有金属熔池、两相区,凝周锭在内的电渣锭温度场的数学模型,经数值计算,得到6种不同熔化速度的熔池形状,与实验进行比较,其结果令人满意。

Mathematical Modelling for the Shape of Metallic Bath in ESR Process

Borrowing from the experimental data found in earlier works about the dropping behavior and heat transfer concerned, sets up the boundary conditions taking into account the different cases of the interface between electrorlag and molten metal. Experiments were performed to determine the relationship between power input and melting rate. Models describing the temperature distributions including those in metallic bath, biphase zone and solidified ingot section in ESR mould are then developed. Numerical solution using Gauss-Seidal method to solve difference epuations by computer shows that the calculation results predicting metallic bath shapes (mainly the depth and diameter) in relation to melting rate of two electroslag amounts at six melting rates are basically in agreement with Baumann printings resulted from experiments.