本文是根据一机部情报所《技术革新简报》1973年第77期刊登的《球墨铸铁生产使用情况》和沈阳铸造研究所编写的《国内外球铁生产技术发展综述》两文摘编而成的,仅供参考。球墨铸铁是一种新型结构材料。由于它具有良好的铸造性能、加工性能和机械性能,而所需的生产设备简单,操作方便,价格便宜,引起了国内外的普遍重视。因此,二十 This article is based on a machine intelligence “Technology Innovation Bulletin” 77 of 1973 published “use of ductile iron production” and Shenyang Foundry Institute prepared “domestic and foreign ductile iron production technology development,” the two abstracts made from ,for reference only. Ductile iron is a new type of structural material. Because of its good casting performance, processing performance and mechanical properties, and the required production equipment is simple, easy to operate, cheap, aroused widespread attention at home and abroad. So twenty