俄罗斯、日本及北美等国钢轨焊接工艺和设备的分析

文章介绍了俄罗斯、日本和北美等国和地区在轨道焊接方面的焊接工艺、方法和设备。特别详细阐述了几种焊接方法的优、缺点,并作了试验和实际比较。文章指出：就钢轨焊接质量和生产效率而言,闪光焊（接触焊）是最佳的,但就焊接成本而言,它并非是最佳的。因为其设备制造成本昂贵,且钢轨的焊接损耗较大。另外,从经济角度上来考虑,在既有线和新线上进行焊接时也应该采用不同的焊接方法和工艺。文章指出：在新线上采用闪光焊（接触焊）是比较经济和合理的。同时也介绍了世界上一些著名的钢轨焊接设备制造公司及其产品。

A survey of welding processes and equipments used in Russia,Japan and North America

This paper describes welding processes,techniques and equipments used in rail welding section in Russia,Japan and North America,along with a comparison among these welding practices.In terms of rail welding quality and efficiency,flash butt welding is the best option,although it's not the best choice from the point of view of welding cost for its comparatively high equipment investment and heavier loss of rail during welding operation. Different welding processes and techniques should therefore be used in e...