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介绍了利用本钢低磷、硫有害元素的铁矿资源,采用全铁法转炉和炉外精炼(LF+RH)的工艺方法,通过800/650mm轧机轧制成车辆用LZ50车轴坯钢(230×230mm)。产品经使用单位的应用检验,化学成分、金相组织、机械性能和表面质量均满足标准和使用要求,可以替代进口产品。
This paper introduces the iron ore resources which utilize low phosphorus and sulfur harmful elements of Benxi Iron and Steel Co., Ltd., and adopts the whole iron method and LF + RH process to produce LZ50 axle billet (230 × 230 mm). Product testing by the application of the use of units, chemical composition, microstructure, mechanical properties and surface quality to meet the standards and the use of requirements, can replace imported products.