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介绍高速铁路特点及对钢轨的要求、高速铁路钢轨技术条件、我国钢轨化学成分及性能特点、国外高速铁路钢轨的化学成分。论述国外高速铁路和我国高速铁路采用的钢轨材质、钢轨“三精”生产设备和工艺、国外高速铁路钢轨制造技术和我国钢轨生产设备技术改造。阐述我国在高速铁路钢轨焊接、钢轨使用等方面开展的相关技术研究,分析高速铁路钢轨制造质量、焊接、预打磨等问题,并提出应对措施及相关建议。
This paper introduces the characteristics of high-speed railway and its requirements for rails, the technical conditions of high-speed railway rails, the chemical composition and performance characteristics of railroads in China, and the chemical composition of high-speed railway tracks in foreign countries. Discusses the foreign high-speed railway and China’s high-speed railway using the rail material, rail “three fine ” production equipment and technology, high-speed rail manufacturing technology and China’s rail production equipment technological transformation. The related technical researches on high-speed railway rail welding and rail use are described. The problems of rail manufacturing quality, welding and pre-grinding of high-speed railway are analyzed, and some countermeasures and suggestions are put forward.