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在整个的冬运和春融中,钢轨三折是威胁全段安全生产的最大问题。因此,从分析钢轨三折原因着眼,开展积极予防钢轨三折发生的工作,就成为我们安全攻关的重大课题。 一、问题的提出 在对三折轨的分析中发现,管内南岔～浩良河间上行线自87年11月至88年1月先后发生的三根折断轨,就其所处位置,运营条件及其折断后的断面显微组织看,具有惊人的相似性;此类轨占全段同期发生折断轨总量的27.3％,数量之大,危害之烈,必须给以高度重视。
Throughout the winter transport and spring melting, rail tripping is the threat to the entire section of the biggest problem of production safety. Therefore, from the analysis of the causes of the three-fold collapse of the railways, carrying out the work of actively preventing the tri-fold occurrence of the rails has become a major issue for our security research. First, the issue raised In the analysis of the tri-fold rail found in the tube Nancha ~ Haohe Hejian upstream from 87 years from November to 88 years in January 1988 has occurred in the three broken rail, on its location, operating conditions and The fracture microstructure after the break, with astonishing similarities; such track accounts for the same period occurred throughout the entire section off the rail 27.3%, the number of large, hazardous to the strong, we must give a high priority.