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低铬钼无限冷硬球墨铸铁轧辊生产中要求铁水球化处理过程中硅铁的孕育量大，则要求配料中硅量要低，这给大量回用球铁料带来困难，同时需大量配入低硅生铁和部分废钢，选用镁四块球化新工艺（镁四块含Ｓｉ＜１２％）可放宽配料中对Ｓｉ量的要求。应用在低铬钼中小型球墨无限冷硬轧辊生产上，可简化操作工艺，轧辊质量指标达到国标要求。
Low chrome molybdenum unlimited chilled ductile iron roll production requirements of the iron ball hydration process of ferrosilicon inoculation, requires the ingredients in the silicon content is low, which gives a large number of back to the ball of iron material difficulties, while a large number of distribution Into the low-silicon pig iron and some scrap, the selection of magnesium four spheroidization of new technology (four Si with Si <12%) to relax the amount of Si in the ingredients required. Used in the production of low chrome molybdenum small and medium ductile chillless rolls, the operation process can be simplified. The quality indexes of the rolls meet the requirements of the national standard.