铸铁合金熔体成分及性能热分析系统的研究

对热分析技术的特点进行了分析,提出了一种对铸造合金熔体成分及性能进行综合检测和预报的新的热分析技术.该技术可根据所测得的温度特征值及所回归的数学模型,预测灰铸铁和球铁的主要成分和性能.为了实现对所建数学模型的动态修正和更新,设计引用了对热分析模型自适应性分析软件模块.通过对冷却曲线形状的分析,实现对特征值的误判和预测值偏差的解释,将传统热分折技术从单纯的定量拓宽到了定量和定性相结合.在自动校正技术的基础上,设计开发了能对铸铁成分进行检测并预报其性能的微机热分析仪硬件电路系统和软件系统.

Study on Thermal Analysis System Used for Composition Determination and Performance Prediction for Casting Alloy Melt Liquid

In this paper, various characteristics of current thermal analysis technique are analyzed. A new method of composition determination and performance prediction for casting alloy melt liquid has been proposed. The technique is used to predict the composition and performance for casting alloy. According to characteristic temperature and maths model, a software block is designed for self-adaptability of the thermal model. The thermal analysis system accounts for the mistaken judgment on characteristic temperature and the devition of prediction on the basis of analyzing the shape of cooling curve. Therefore, the paper has developed the traditional quantitative analysis to the level of combination of quantitation and qualitative analysis. The analysis of correction technique is studied in the paper. Hardware circuit and software system for thermal analysis system are developed by means of single-computer as mainframe. Both the composition determination and the performance prediction can be realized by using the thermal system.