The problems of material selection, nodularizing and inoculation treatment and the technical parameter control of the centrifugal casting are mainly discussed.

着重论述了材质选择、球化孕育处理和离心铸造工艺参数控制等问题。

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The influences of the MgO content of the nodularizing alloy on nodularizing effect, microstructure and mechanical properties of nodular irons, as well as the method to …

研究了球化剂中氧化镁含量对球化效果、球铁的显微组织和性能的影响，以及球化剂中所能允许的氧化镁临界含量的确定方法。

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Compared with pour-over treatment process in an open ladle, nodularizing in the Tundish covered ladle has following advantages:(a) reaction fumes and glare could be reduced obviously;

与用敞口包冲入法比较，用带盖包进行球化处理的好处是：①反应镁光和烟尘大幅度减少；

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