本文介绍了通过改变硅碳比值与碳当量值得出了对铸铁机械性能和白口倾向影响的规律.获得了无白口倾向铸铁临界硅碳比.提出了生产高强度无白口倾向铸铁的新工艺. In this paper, the rules that affect the mechanical properties of cast iron and the tendency of white mouth are obtained by changing the ratio of silicon to carbon and the carbon equivalent, and the critical silicon / carbon ratio of cast iron with no white mouth is obtained. Process.