稀土镁钙合金是比较适合于冲天炉高硫铁水使用的蠕化剂。
The rare-earth-magnesium-calcium alloy is a compacted agent more suitable for high sulfur base gray iron in cupola.
采用稀土为主的含低沸点元素的蠕化剂生产了耐热蠕墨铸铁。
A heat-resistant compacted graphite iron has been produced by using RE composite vermiculate ferroalloy which contains low boil element.
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