在铸铁车间提高铸铁强度的方法,从现有的理论上来看有:1)改变铸铁中石墨的大小及分布;2)改变石墨的形状;3)消除石墨,从根本上改变金属性质.前两种方法早已为人们掌握.第三种方法除设有平炉和转炉的车间外,在一般铸铁车间还没有实现,铁水包吹氧炼钢可说是一个开端. In the cast iron workshop to improve the strength of cast iron from the existing theoretical point of view: 1) change the size and distribution of graphite in cast iron; 2) change the shape of graphite; 3) eliminate graphite, fundamentally change the nature of the metal. The method has long been used by people to grasp the third method except with open hearth and converter workshop, the general cast iron workshop has not yet achieved, ladle oxygen steel can be said to be the beginning.