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简要地介绍了国内外高速铁路发展情况及所使用钢轨的化学成分和性能,从理论和实践上分析了国内客运钢轨暂行技术条件与普通钢轨技术条件的区别。客运专线钢轨要求塑性更高,其A≥10%,w(T.O)≤20×106,夹杂物要求更低,A类夹杂不大于2.0级,B、C、D类夹杂不大于1.0级,客运专线钢轨的总体要求明显高于普通钢轨。从客运钢轨钢的工艺技术和设备的对比分析可知,国内鞍钢、包钢、攀钢、武钢4家钢厂的生产设备已处于世界领先水平,但是由于我国生产高速钢轨的时间还不长,还缺少生产和管理的经验,目前我国钢轨的实物质量与国外先进水平还存在一定差距。
Briefly introduces the development of domestic and international high-speed railway and the chemical composition and performance of the used rails. The differences between the technical conditions of domestic passenger rails and those of common rails are analyzed theoretically and practically. Passenger Dedicated Rail requires higher plasticity, A≥10%, w (TO) ≤20 × 106, less inclusion requirements, Class A inclusions not more than 2.0, Class B, C, D mixed not more than 1.0, Passenger The overall requirements of green rails are significantly higher than ordinary rails. From the comparative analysis of the passenger rail steel technology and equipment, we can see that the production equipment of four domestic steel mills, Anshan Iron and Steel, Baoshan Iron and Steel, Panzhihua Iron and Steel, Wuhan Iron and Steel has been the world leader, but due to the time is not long production of high-speed rail in our country, Lack of experience in production and management, there is still a certain gap between the physical quality of our country’s railways and the advanced level abroad.