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在半连续铸锭和铸件生产中,晶粒细化会带来很多好处。在半连续铸造中,采取细化晶粒的措施后,可以提高铸造速度,减少裂纹、冷隔和偏析,提高坚固性,对于改善合金的机械性能也有重要作用。工业生产中,经常通过在铸造前的某个时候向熔体添加变质剂来细化晶粒,这些变质剂是含少量钛或含少量钛、硼的母合金,通常称为“中间合金”。目前,很多不同的中间合金在工业上得到了应用,采用何种形式和成分的中
In the production of semi-continuous ingots and castings, grain refining offers many benefits. In the semi-continuous casting, grain refining measures to improve the casting speed, reduce cracking, cold separation and segregation, improve the ruggedness, to improve the mechanical properties of the alloy also has an important role. In industrial production, the grains are often refined by adding a modifier to the melt sometime before casting, which is a master alloy containing a small amount of titanium or containing small amounts of titanium and boron, commonly referred to as “master alloys.” At present, many different master alloys have been used industrially, in what form and in the composition