【摘要】 本文详细介绍了人工种经网络BP模型的基本原理、实现过程以及在型砂制备系统中的应用．利用BP算法建立的型砂成分与型砂性能关系的网络模型可以根据型砂主要性能快速、准确地预测型砂主要成分，其预测精度足够满足生产实际的需要．更多还原

【Abstract】 This paper discussed the basic pnnclple，realizing process and the appllcation ofaytlficlal nculal network model In moulding sand preparation systen．The network model about therelationships of moulding sand composltiom and properties， which was trained by backpropagatlonalgorithm using the samples collected from a laboratoty，can be used to predict the contents of main moulding sand composition qincMy and accuratV accoding N main propertes ofmouMingsand．The predicting accwacy is good ellough to meet the needs of pteduction ．更多还原