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以三元系等活度线计算机绘制过程中出现的锯齿形问题,抓住常见等活度线的一般规律,提出一种新的三元系等活度线的计算方法。通过转换浓度变量,构造一组在计算范围内单调的方程,确保了绘图不出现锯齿形。此法原理简单,可用于各种热力学模型的等活度线计算。用于SReM热力学模型,并建立等活度图绘制程序。程序具有界面友好、应用灵活、实用性强的特点。用之于绘图,表明本文提出的方法,可有效避免出现锯齿形。
The zigzag problem appearing in computer drawing process of activity lines such as the ternary system and so on, and grasping the general law of common activity lines, proposes a new calculation method of isokinetic lines of ternary system. By transforming the concentration variables, we construct a set of monotone equations in the calculation range, ensuring that the plot does not appear jagged. This method is simple in principle and can be used to calculate the isobath of various thermodynamic models. For the SReM thermodynamic model, and the establishment of activity mapping program. Program has a friendly interface, flexible application, practical features. Used in drawing, indicating that the method proposed in this paper can effectively prevent the sawtooth shape.