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1969年10月我们阜新矿务局海州露天煤矿邀请了一机部哈尔滨电碳厂、交通部铁道科学研究院机车车辆研究所和煤炭科学研究院太原研究所等单位有关人员共同组成了三结合的碳素滑板试验小组。在大量试验的基础上,于1971年6月在我矿开始全线(干线185公里)运行试验,将89台150吨和80吨电机车正受电弓的铜滑板全部更换成碳素滑板,同时还在亚热带气候的广东茂名石油公司露天矿作了辅
October 1969 We Fuxin Mining Bureau Haizhou open-pit mine invited a machine Harbin Electric Carbon Factory, the Ministry of Railways Institute of Railway Science and Technology Institute of Locomotive and Coal Research Institute of Taiyuan, and other relevant personnel jointly formed three units Carbon skateboard test group. On the basis of a large number of tests, we started a full-scale operation of 185km at our mine in June 1971. All of the copper skateboards carrying 89 pcs of 150-ton and 80-ton electric locomotives under pantograph were all replaced by carbon skateboards. Meanwhile, Also in the subtropical climate of Guangdong Maoming Oil Company open pit made a supplement