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动态的车轮与相对静态的钢轨之间是一对典型的磨擦副。在担负机车车辆支承和导向作用的同时,也必然地伴随着轮轨磨耗。特别是在小半径曲线地段,当车轮以巨大的离心力和冲角与钢轨接触时,由于内、外轨长度的差异和轮对中心线与线路中心线的偏移,致使在轮缘与钢轨侧面间产生10％左右的濡滑与磨擦。据国外资料统计,在钢轨的四种主要报废原因中,这种因“侧磨”等非正常磨损报废的占50％以上。(见表)每年
Between a dynamic wheel and a relatively static rail is a pair of typical friction pairs. In bearing the role of locomotive and vehicle support and guidance, but also inevitably accompanied by wheel and rail wear. Especially in the small radius curve section, when the wheel with a huge centrifugal force and angle of contact with the rail, due to the difference between the length of the outer rail and wheel center line and the line centerline offset, resulting in the rim and rail side About 10% between the slippery and friction. According to statistics from abroad, among the four major reasons for scrapping the rails, this type of scrapping accounts for more than 50% of the total wear and tear caused by non-normal wear and tear. (See table) Every year