摘要
本文研究了中铬铸铁的孕育.试验指出:用适量稀土孕育可提高中铬铸铁硬度 HRC 2以上,而用钛铁孕育对其硬度影响不大.
A study on innoculatioh of cast medium chrome iron has carried out.Experiments show that innoculation with proper quantity of RE increases hardness about HRC2 or higher.But innoculation with Ti shows little effect on hardness.
