为比选出适用于朔黄重载铁路的曲线钢轨润滑剂,确定曲线钢轨润滑周期,进行了室内试验和现场验证试验.室内试验采用 MM-200 磨损试验机模拟重载铁路轮轨接触,分800,1 500,2 000 N共3 种荷载工况,分别对4 种润滑剂进行了摩擦性能试验.试验结果表明,济南三新干式润滑剂在1 500 N 和2 000 N荷载下减磨效果明显.针对比选出的两种润滑剂,在 R600 m 曲线进行了现场对比试验,通过总重达到224 MGt时,济南三新干式润滑剂的减磨效果明显,其平均侧磨量减少54. 4%.朔黄铁路在目前运输条件下,济南三新干式润滑剂的润滑周期应控制在12 h以内,即每天涂敷2 次.%In order to determine the curve rail lubrication cycle and the most suitable curve rail lubrication for Shuohuang heavy haul railway,the laboratory and field experiments were carried out in this paper. M M-200 wear testing machine was used to simulate the rail/wheel contact of heavy haul railway and wear performance tests for 4 kinds of lubrication w ere conducted respectively under load condition of 800 N ,1 500 N and 2 000 N . T est results show ed that Jinan Sanxin dry lubricant presents obvious w ear reduction effect under load of 1 500 N and 2 000 N . For two kinds of selected lubricants,field comparison tests were made on R600 m curve rail. W hen the total weight reached 224 M Gt,Jinan Sanxin dry lubricant has obvious wear reduction effect,mean side wear of which was reduced by 54. 4%. Under current transport conditions of Shuohuang railway,lubrication cycle of Jinan Sanxin dry lubricant should be controlled within 12 h,which means coating 2 times a day.
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