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平原铁路线滚动接触疲劳的控制已普遍采用周期预防性打磨技术,目前转辙器及辙叉也正在采用类似的定期打磨技术。钢轨打磨最初是为了消除钢轨纵向不规则,如钢轨波纹磨耗,或恢复轨头部位的断面形状而开发的一种对钢轨进行修正的工艺。当钢轨损伤超过规定的临界值,或具备所需的资源时,通常进行钢轨打磨。在过去的10多年中,钢轨打磨已经成为控制滚动接触疲劳的一种预防性维护措施,如轨距边角
Plane rail line rolling contact fatigue control has been widely used periodic preventive grinding technology, the current switches and frogs are also using similar regular grinding technology. Rail grinding was originally developed in order to eliminate longitudinal rail irregularities, such as rail corrugation wear, or to restore the rail head section of the shape of a modified rail technology. Rail grinding is usually performed when the rail damage exceeds a specified threshold or has the required resources. For more than a decade, rail grinding has become a preventative maintenance measure for rolling contact fatigue, such as rail gauge corners