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钢轨尺寸偏差对线路维修养护、更好地发挥钢轨的功用和延长钢轨使用寿命关系很大,作为钢轨标准中技术条件的主要内容,应当充分满足维修养护的要求。为了满足铁路行车安全和运行平稳,铁道上部建筑的各部尺寸都有所规定。由于列车高速和不间断的运行,车轮在动态下作用于钢轨上有垂直力和侧向力,还有冲击、摇摆和振动,钢轨处在疲劳状态中。要提高线路质量,经常保持线路完好状态,钢轨的平直和尺寸准确是很重要的。钢轨从生产厂到铺到线路上使用,中间不再另行加工,因此,钢轨的各部尺寸,要有严格的规定,要按严格规定的尺寸轧制,才能满足铁路运输发展的需要。
Rail dimensional deviations on the line maintenance and repair, to better play the role of rail and extend the service life of the rail a great relationship, as the main technical conditions of the rail standard, should fully meet the maintenance and maintenance requirements. In order to meet the requirements of railway traffic safety and smooth operation, the size of ministries in the upper part of the railway has been stipulated. Due to the high speed and uninterrupted operation of the train, the wheels dynamically and vertically act on the rails with vertical and lateral forces, as well as impacts, rocking and vibrations, and the rails are in a state of fatigue. To improve the quality of the line, keep the line intact, the straightness and the exact dimensions of the rail are important. Rail from the shop to the shop to use the line, the middle no longer separate processing, therefore, the size of the various ministries, there are strict rules, according to strictly regulate the size of rolling in order to meet the needs of the development of railway transport.