含铝耐热铸铁熔制新工艺的可行性探讨

An inquiry into the possibility of the new melting techniquefor the heat-resisting cast iron with aluminium

探讨了含铝耐热铸铁熔制新工艺的可行性。试验结果表明,应用钟罩压入新工艺可以使铝的烧损率稳定在8%—9%之间,并改善了铸铁铝的偏析缺陷。以此工艺熔制的铸铁,化学成分以及金相组织和机械性能各项指标合格,使用效果良好。

This paper inquires into the possibility of new melting technique for the heat-resisting cast iron with aluminium.The results of the experimouts show that the new technique may make the dead rate steady between 8%~9%,and improve the segregation in cast iron aluminium.The chemical elements and metallographic structure and the indexes of mechanical properties of the cast iron melted by the new technique are qualified,and the cast iron is of good effects when it is used.