一前言近年来,发展铸态高强度、高韧性球墨铸铁管已成为铸管生产的方向。众所周知,上述性能的球铁应该具有在铁素体基体上分布着球状石墨的金相组织。我国有关报导表明,铁素体球墨铸铁在汽车、拖拉机制造中,在代替可锻铸铁方面也展现了良好的前景。本文是在实验室试验研究的基础上,对铸态铁素体球铁的化学成分、球化剂和孕育处理等主要生产条件加以论述。 A foreword In recent years, the development of cast high strength, ductile ductile iron pipe has become the direction of casting pipe production. It is well known that ductile iron with the above properties should have a microstructure of spherical graphite distributed on a ferrite matrix. Relevant reports in our country show that ferritic ductile iron also shows a good prospect in automobile and tractor manufacture as an alternative to malleable cast iron. This article is based on the laboratory test research, the cast ferrite ductile iron chemical composition, nodulizer and inoculation and other major production conditions are discussed.