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给出了描述熔融金属充型过程的数学模型，简要介绍了充型过程的数值算法，在一些具体算法上作了适当改进。该技术被用于真空吸铸叶轮铸件充型过程数值模拟计算，并将计算结果与试验结果进行了对比。
A mathematic model describing the process of filling the molten metal is given. The numerical algorithm of the filling process is briefly introduced and some improvements are made on some specific algorithms. The technology is used in the numerical simulation of the process of filling and molding the vacuum casting impeller castings, and the calculation results are compared with the test results.