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为了满足矿用大型载重汽车行驶路面修建和维护施工的要求,在国内尚无这种专用设备情况下,大冶铁矿用上海牌SH380A型32吨自卸汽车底盘及部分零部件,自行设计和改制了一台自重40吨的3Y-40型压路机。该机于1981年9月改制完成即交付现场做工业生产试验,至1982年12月止,纯工作1440小时,圆满完成试验任务。1982年12月下旬,冶金部委托湖北省冶金局主持召开了技术鉴定会,来自全国19个单位
In order to meet the requirements of road construction and maintenance construction of large mining trucks, in the absence of such special equipment in China, Daye Iron Mine used the SH380A 32-ton dump truck chassis and some spare parts of Shanghai Brand SH Reorganized a weight of 40 tons of 3Y-40-type roller. The aircraft was completed in September 1981 to complete the restructuring of the industrial production delivery test to the scene, until December 1982 only 1440 hours of pure work, the successful completion of the test mission. In late December 1982, the Ministry of Metallurgy commissioned the Metallurgical Bureau of Hubei Province presided over the technical appraisal meeting, from 19 units nationwide