摘要
通过60E1和115RE断面钢轨对比,优化钢轨化学成分,采取窄成分控制,提高C含量,控制Mn、Cr元素含量,优化轧制工艺,小批量生产了60E1断面SS钢轨,钢轨性能达到Rp0.2≥512 MPa,Rm≥982 MPa,A≥10％,踏面硬度(HB)≥310.小批量工业生产实践证明,60E1断面SS钢轨生产工艺顺行,性能稳定,满足用户需要,可以扩量生产.
Abstract
The SS steel grade rail with 60E1 cross section is manufactured with small batch production by comparing the rails with 60E1 and 115RE cross sections,optimizing chemical composition,adopting narrow composition control,in-creasing C content,controlling contents of Mn and Cr as well as optimizing rolling process. The rail performances could reach Rp0.2 ≥512 MPa,Rm≥982 MPa,A≥10％ and tread hardness (HB)≥310. The small batch industrial production practices prove that the production process of SS steel grade rail with 60E1 cross section is trouble free and its performances are stable,which could meet the user needs so that it can be produced with incremental quantity.
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