| 摘要 |
An alloy which is added to the melt when making spheroidal graphite cast iron comprises (wt.%) 0.005-3% rare earths, 0.005-3% bismuth, lead and/or antimony, 0.3-3%, preferably 0.5-2%, calcium, 0.3-3%, preferably 0.5-1.5%, magnesium and the balance silicon and iron in a ratio of Si to Fe of >2, preferably >2.5. The alloy may be added to the melt in the form of wire wool.
|
