最近的研究表明,通过采用新技术并与实践经验相结合,有可能使可锻铸铁的铸件年产量达到与球墨铸铁相同的水平。根据标准,可锻铸铁的力学性能和比屈服强度与球墨铸铁的相当,但是油淬可锻铸铁的屈服强度明显高于球墨铸铁的屈服强度。根据在相同条件下生产的超过350根试棒的性能,对球墨铸铁、空淬可锻铸铁和油淬可锻铸铁开展了范围广泛的调查和研究。对研究结果与现有的国际标准进行了比较和讨论。还讨论了其他性能,例如疲劳强度和对感应硬化那样的表面处理的响应特性。回顾和评价了可锻铸铁的成本并与其他铁基合金进行了比较。在提高铸件收得率和对强度认识方面的这些最新研究,使可锻铸铁能够与球墨铸铁相竞争,其价格比最高级别的奥铁铸铁便宜,其质量或可与钢媲美。有可能使设计轻量化而减轻零件的质量,这在汽车工业中是极其重要的。展示了“绿色铸造”研发的用于汽车传动装置和发动机的典型应用实例。 Recent research shows that it is possible to achieve the same level of ductile iron castings as the ductile cast iron by using new technologies and combining them with practical experience. According to the standard, the mechanical properties and specific yield strength of ductile iron are comparable to those of ductile iron, but the yield strength of ductile iron with oil quenching is obviously higher than that of ductile iron. Based on the performance of more than 350 test bars produced under the same conditions, a wide range of investigations and studies have been conducted on ductile iron, air-cooled malleable iron and oil quenched malleable iron. The research results are compared with the existing international standards. Other properties such as fatigue strength and response characteristics to surface treatment such as induction hardening are also discussed. The costs of malleable cast iron were reviewed and evaluated and compared to other iron-based alloys. These latest developments in improving the yield and strength of castings have made malleable cast iron competitive with ductile iron at a fraction of the price of the highest grade cast iron that is comparable in quality to steel. It is possible to make the design lightweight and reduce the quality of parts, which is extremely important in the automotive industry. Showcased a typical application for automotive gearboxes and engines developed by Green Casting.