摘要
在冲天炉生产条件下，通过调整铁水的Si／C和（Si－Mn）值．采用炉前包内冲锰铁，以RE-Ba-Ca和Si-Ca合金混合孕育剂，对灰铸铁铁水进行复合孕育处理，试验结果表明，在合适的Si／C和（Si－Mn）值条件下，复合孕育处理可使3.9％～4.25％CE的灰铸铁抗拉强度达到250MPa。
Under the productive condition of cupola, after adjusting Si/ C and (Si- Mn) the molten was treated by adding Mn-Fe to ladle and compound inoculant of RE-Ba-Ca and Si-Ch alloys. The results shoWed that the Asle mph of gray cast iron,having proper Si/C and (Si - Mn) and 3. 9% -4. 25 %CE,could be inced up to 250MPa.
出处
《现代铸铁》
CAS
1997年第3期13-15,28,共4页
Modern Cast Iron
关键词
灰铸铁
复合孕育处理
抗拉强度
Gray cast iron Compound inoculation treatment Tensile strength
