国内外生产蠕墨铸铁的主要方法有两种:1)、用稀土混合金属处理铁水;2)、用球化与反球化元素同时处理铁水。我们先后采用包头1#稀土硅铁、1#稀土硅铁加硅钙、自制稀土镁中间合金加钛铁和硅钙进行了工艺试验和生产试验,应用于大马力高速柴油机重要件的试制,一年多来初步取得成果。 There are two main ways to produce compacted graphite iron at home and abroad: 1) hot metal mixed with rare earth; 2) hot metal with spheroidization and anti-nodularity. We have adopted the Baotou 1 # rare earth ferrosilicon, 1 # rare earth ferrosilicon plus calcium silicate, homemade rare earth magnesium master alloy with titanium and calcium silicate process test and production test, used in high-power high-speed diesel important parts trial, a More than a few years to achieve initial results.