This article is tried to design and calculate the complex heat screen of vacuum resistance furnace by the analysis method as a substitution for the conventional splinefitmethod.
本文试图建立一种分析法代替传统采用的试凑法，对真空电阻炉的复合热屏蔽进行设计、计算。
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The mathematical model built by the data fitmethod based spline least square has not only higher precision of model and fit coherence, but low degree of model, more smooth also.
The spline polishing method is used for dispersion value of typography elevation difference to conduct fit polishing so as to get the near function which is used in calculation.