本文根据英国铸铁研究协会所提供的资料,概述了采用等温淬火球墨铸铁取代闲以制造种种零件的重要性——特别是用于制造动力传动的齿轮。英国铸铁研究协会所进行的工作已经证实:对球墨铸铁进行等温淬火热处理可使其性能提高到在某些应用中向钢提出挑战的程度。采用铸铁替代钢 Based on the information provided by the British Institute of Cast Iron Research, this article outlines the importance of using isothermal ductile iron instead of slamming parts - in particular for the manufacture of power transmission gears. Work carried out by the British Society for Foundry Research has confirmed that isothermal quenching of ductile iron increases its performance to the point where steel is challenged in some applications. Cast iron instead of steel