一、前言近年来,随着球墨铸铁的日益发展,可锻铸铁是否将被球铁取代?这已成为人们关注的问题。对这两种铸铁的性能、生产工艺及经济性所作的全面比较表明,它们各有优劣及适宜的使用范围。可锻铸铁的优点不可能为球墨铸铁完全代替,因此,如能研制出一种兼有球铁和可锻铸铁优点的新的铸铁材料,无疑将 First, the foreword In recent years, with the increasing development of ductile iron, ductile iron will be replaced by ductile iron? This has become a matter of concern. A comprehensive comparison of the performance, production technology and economy of these two kinds of cast iron shows that each has advantages and disadvantages and a suitable range of use. The advantages of malleable cast iron can not be completely replaced by ductile iron, so if we can develop a new cast iron that combines the advantages of ductile and malleable cast iron,