摘要
研究75SiFe和FeSiRE27合金的不同加入量对高强度灰铸铁性能的影响。结果表明:含稀土元素的孕育剂可以降低铸铁的过冷度及形成白口的倾向性,能降低硬度及形成气孔的倾向性,可以提高铸铁的抗拉强度。根据研究成果,熔制了新型Fe-Si-RE合金,用它做孕育剂处理铁液,生产了机床铸件,取得了良好的预期效果。
The effect of adding different contents of 75SiFe and FeSiRe27 alloy into molten iron on the properties of high strength gray iron is studied. a inoculant containing rare earth element could The experimental results show that the addition of reduce the undercooling, the chilling tendency, hardness and blowhole formation tendency of the cast iron, and increase its tensile strength. Based on the research findings, a new type Fe-Si-Re alloy inoculant is prepared for molten iron. The machine tool castings treated with such inoculant obtain predicted effect.
出处
《铸造技术》
CAS
北大核心
2007年第6期745-750,共6页
Foundry Technology
