一、简介: PGM—48型钢轨打磨列车是铁道部于1994年从美国潘德罗——杰克逊公司引进的大型养路机械。主要作用是通过对线路进行打磨,消除钢轨表面缺陷,包括肥边、波纹波浪磨耗,轨面擦伤和轻度掉块等病害,修正钢轨轮廓,使钢轨表面平顺,增强列车运行的平稳性、安全性。 PGM—48型打磨车的防火挡板用于阻挡在打磨钢轨过程中产生的火星铁屑向车外 I. Introduction: PGM-48 rail grinding train is the Ministry of Railways in 1994 from the United States Pan Deluo - Jackson introduced a large-scale maintenance machinery. The main function is to correct the rail profile by smoothing the circuit to eliminate the rail surface defects, including the fat edge, wavy wave abrasion, rail surface abrasion and mild block dropping, so as to smooth the rail surface and enhance the smooth running of the train, safety. PGM-48-type polished car fire baffle used to block the process of polishing the rails of Mars scrap iron to the car