【摘要】 本文分析了数据交换技术的发展，指出STEP技术可以满足集成化系统开发的需要，而面向对象技术则很好地解决了模型间的数据交换，并据此提出了一基于面向对象和STEP的注塑模产品模型，该模型分为总体信息模型、主特征模型、结构信息模型及辅助装置模型，并用EXPRESS-G对其作了进一步阐述。更多还原

【Abstract】 The paper analyses the development of the data exchange technology and points out that STEP technology cansatisfy the needs of integration system research, and object-oriented technology resolves the data exchange among themodels. Based on this the paper presents an object-oriented and STEP-based product model of injection mold thatconsists of gen eral information model, main feature model, structural information model and auxiliary device model,and studies it in detail in EXPRESS-G.更多还原