为满足铁路现代化建设的需要,现已着手进行机车车辆低合金高强度铸钢系列化研究.本文是在分析这类铸钢件特点的基础上,参考国内外的一些成功经验,根据自己的试验结果,对系列化中的高强韧性钢种选择及其薄壁铸件的生产,在分析强韧化途径的基础上,提出了一些基本原则与建议. In order to meet the needs of the modernization of the railway construction, a series of researches on the low alloy high strength cast steel for locomotive and rolling stock have been carried out.On the basis of analyzing the characteristics of such castings and referring to some successful experiences both at home and abroad, As a result, some basic principles and suggestions are put forward on the basis of analyzing the toughening methods for the selection of high strength and toughness steels and the production of their thin wall castings.