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在英明领袖华主席提出的抓纲治国的伟大战略决策指引下和《毛泽东选集》第五卷隆重出版发行的大喜日子里,铁道部从4月21日到24日在长沙召开了“货车塑料瓦头初步技术鉴定会”。铁道部科学技术委员会机车车辆局、工业局、全国20个铁路局、14个货车工厂、铁道科学研究院、戚墅堰机车车辆工艺研究所以及部外有关厂所等49个单位共167名代表参加了会议。自从货车采用球墨铸铁轴瓦代替原有铜轴瓦以来,节约了大量有色金属,但也产生了严重的轴瓦端磨损问题。这样使轴瓦修换率大量增加,并成为引起货车大量燃轴的主要因素之一。
Under the guidance of great strategy decision made by wise leader Chairman Hua for grasping the country with the rule of the country and the grand release of the fifth volume of the “Selected Works of Mao Zedong,” the Ministry of Railways held the “Plastic Wagons for Trucks in Changsha from April 21 to April 24, Head initial technical appraisal meeting. ” A total of 167 representatives from 49 units, including Locomotive and Rolling Stock Bureau, Industrial Bureau, 20 Railway Administrations of the PRC, 14 truck factories, Railway Science and Research Institute, Qishuyan Locomotive and Rolling Stock Technology Research Institute, and relevant departments outside the Ministry of Railways attended the meeting meeting. Since the trucks used nodular cast iron bearings instead of the original brass bearings, a large number of non-ferrous metals have been saved, but serious bearing side wear problems have also arisen. This resulted in a substantial increase in the rate of change of the bushings and became one of the main factors that led to a large number of fuel rams.