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本文研究本钢生铁在国内外广受欢迎的根本原因.文中搜集了国外高纯生铁及优质生铁的资料,并对国内八家生铁进行微量元素分析.对比后发现本钢生铁的主要微量元素含量处于国外高纯生铁含量的下限或低于下限.∑T<0.08%与国内其他厂家生铁相比较为最低.在相同条件下处理成的球铁组织中铁素体比例高,冲击韧性高.证明本钢生铁的优越性除磷硫低外,微量元素低是极为重要的原因之一.
This paper studies the root causes of the popularity of this pig iron at home and abroad.This paper collects the data of foreign high-purity pig iron and high-quality pig iron and analyzes the trace elements in eight domestic pig irons.Comparison results show that the main trace iron content In the world, the content of high-purity pig iron in foreign countries is at or below the lower limit of ΣT <0.08%, which is the lowest compared with that of other domestic pig iron producers. The ferrite content in the treated ductile iron in the same condition is high and the impact toughness is high The superiority of steel pig iron in addition to low sulfur phosphorus, low trace elements is one of the most important reasons.