通过钢轨静态棍矫模拟试验及一, 二次矫直钢轨的性能对比试验、残余应力等研究、探讨矫直对钢轨性能的影响。结果表明,钢轨在矫直过程中发生大面积屈服、立矫与卧矫有不同的应力状态:二次矫直降低了钢轨的抗疲劳能力,从微观机制上探讨了二次矫直对钢轨性能的影响。 Through the static straightening test of rails and the comparison of the performance of the primary and secondary straightening rails, the residual stress and so on, the influence of straightening on the performance of the rails is discussed. The results show that the rail has a large area of ​​yielding during straightening, and the vertical straightening and lying reclining have different stress states: the second straightening reduces the fatigue resistance of the rail, and the secondary straightening has a great influence on the rail performance Impact.