摘要
研究了几种复合孕育剂对较高碳当量 (CE =3 8%～ 4 1% )灰铸铁性能的影响 ,试验并经实际生产结果表明 ,选择 6 0 %SiBa + 40 %SiFe作为高碳灰铸铁件的复合孕育剂 ,其抗拉强度稳定在 2 5 0MPa以上 ,并能减小白口宽度和断面敏感性 ,满足实际生产要求。同时对其孕育机理进行了探讨。
In this paper,the effects of several compound inoculants on gray cast iron′s properties with 3 8%～4 1%CE were investigated.The experiment and production results showed that 60%BaSi+40%SiFe was selected as compound inoculants for gray cast iron with 3 8%～4 1%CE,its tensile strength was higher than that of HT250 grade and its sensibility of section hardness and white iron width were reduced.It meets production requirement.At same time its inoculation mechanism was studied.
出处
《铸造》
CAS
CSCD
北大核心
2001年第2期84-87,共4页
Foundry
关键词
复合孕育剂
灰铸铁
高强度
薄壁铸件
compound inoculants
gray cast iron
high strength
thin section casting
