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首页> 外文期刊>NIPPON STEEL TECHNICAL REPORT >Development of Field Fusion Welding Technology for Railroad Rails
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Development of Field Fusion Welding Technology for Railroad Rails

机译：铁路现场熔焊技术的发展

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摘要

In recent years passenger train speed and freight train load have been increased to enhance the efficiency of railroad transportation. These trends have increased the severity of the rail service environment as to wear resistance and fatigue damage resistance. Nippon Steel has met these challenges by developing high-performance and high-strength rails. Continuous welded rails (CWRs) have been increasingly laid to simplify track maintenance and inspection, control noise and vibration, and to ensure travel safety. Rail welding techniques are of the utmost importance for the laying of CWRs. The development and commercialization of new fusion welding techniques involving the novel idea of increasing the carbon content of the weld metal, a breakthrough in conventional welding technology, are described for in-track welding of high-performance and high-strength rails. The present status of automatic rail fusion welding technology expected to evolve further is introduced, and the future trends of rail welding are considered.
机译：近年来，增加了旅客列车速度和货运列车负荷以提高铁路运输的效率。这些趋势在耐磨性和抗疲劳损伤性方面增加了铁路服务环境的严重性。新日铁通过开发高性能和高强度的导轨来应对这些挑战。越来越多地铺设连续焊接导轨（CWR），以简化轨道维护和检查，控制噪音和振动并确保行驶安全。轨道焊接技术对于CWR的铺设至关重要。描述了用于提高高性能和高强度钢轨的在轨焊接的新型熔焊技术的开发和商业化，该技术涉及增加焊接金属碳含量的新想法，这是传统焊接技术的一项突破。介绍了有望进一步发展的自动钢轨熔焊技术的现状，并考虑了钢轨焊接的未来趋势。

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