05Al导电轨的研制.pdfVIP

05Al 导电轨的研制 薛 军 雷洪波 郭大勇 王秉喜 高 航 (鞍钢股份有限公司技术中心，鞍山 114009) 摘 要 以Q/ASB106-1998 为研制标准，采用现代化设备，冶炼和连铸了 05Al 导电轨用钢，产品电阻率和实物质 量均满足要求。结果表明：炼钢工艺做到出钢完全脱氧，钢液经过炉外精炼处理，方坯连铸机就可以顺利地浇铸铝 镇静钢，单中包连浇炉数达到 8 炉。钢中各成分按下限控制，纯净的钢质、粗大晶粒等使导电钢轨具有良好的导电 性能，15℃时其电阻率小于0.125µ Ω•m 。导电钢轨表面良好，首次试制生产批量就达到5000t，性能合格率 100%， 综合成材率 87.59%，导电钢轨的性能达到国外同类钢水平。 关健词 城市轨道交通 导电轨 低碳铝镇静钢 炉外精炼 Development of 05Al conductor rail Xue Jun Lei Hongbo Guo Dayong Wang Bingxi Gao Hang （Technology center of Ansteel Co, Ltd. Anshan ,114009 ） 1 Abstract Taking Q/ASB106—1998 as standard, Ansteel had developed 05Al conductor rail with its modern equipments and a process of converter-CC, the property of the product including electrical resistivity can fully satisfy the requirments in the standard. The molten metal was totally deoxidized after converter and followed with secondary refining, then the Al-killed steel could be continuous casted by bloom casting. The contents of different elements were controlled to the lower limits, the pure metal and coarse grains in the steel make the product have excellent conduction performance, the electrical resistivity at 15 ℃ is lower than 0.125µΩ•m. The first order of the product is about 5000 tons, and 100% of which is acceptable, total percent of pass is 87.59%, the property of conductor rail is as same as the same foreign products. Key words urban mass transit feed type, conductor rail, LCAK steel, secondary refining 1 引言 城市铁路导电钢轨与铜质、铝质导电滑线相比具有使用周期长、投资少、使用安全稳定、维护与维修费 用较低等优点，被国内外城市铁路所采用。在北京已兴建和准备再建的城市铁路都将使用导电钢轨，而正在 兴建和准备兴建城市铁路的城市如天津、南京、沈阳、哈尔滨等城市也都准备使用导电钢轨。随着国家经济 的飞速发展，各大中城市经济实力的不断提升，就必然改善其交通环境，而城市铁路以其方便、快捷及环保 等独有的优势成为大中城市改善交通环境的首选。因此，中国的城市铁路建设方兴未艾，城市铁路用导电钢 轨的潜在市场非常巨大[1-4] 。鞍钢 20 世纪生产导电钢轨