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作者调查了我国东北、华北、华东及湖北省等地11个工厂生产的球铁机械性能,全部数据用数理统计方法分析、电子计算机处理。对1984年通过的球铁国际标准修正草案进行了分析,并且和我国球铁机械性能进行了比较及讨论。最后,根据作者对法国、瑞士等国球铁生产的考察及国外球铁生产发展趋势,对球铁生产中的高温低硫铁水、球化处理工艺、孕育处理及铸态铁素体球铁、质量控制及成品检验以及球铁生产专业化等五个问题,作了初步探讨。
The author investigated the mechanical properties of ductile iron produced in 11 factories in Northeast China, North China, East China and Hubei Province. All data were analyzed by mathematical statistics and computerized. The draft amendments to the international standards for ductile iron passed in 1984 were analyzed and compared with the mechanical properties of ductile iron in our country. Finally, according to the author’s investigation of the production of iron in France and Switzerland and the development trend of foreign ductile iron production, the authors put forward some suggestions on the production of high-temperature and low-sulfur molten iron in ductile iron, balling treatment, Quality control and finished product inspection and ductile iron production specialization five issues, made a preliminary discussion.