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中南矿冶学院和武进铜粉末冶金厂共同研制的95系列柴油机连杆粉末冶金黄铜轴套,于1984年9月通过鉴定。该轴套因能满足设计使用要求而可以取代铸造机加工6-6-3锡青铜轴套,具有明显的技术经济效益。其材料利用率可由铸造机加工的23.8％提高到现在的95％,即材料利用率提高了3倍,而成本却为ZQSn6-6-3青铜的70％,此外还节约了大量的贵重金属锡。鉴定会由江苏省机械工业厅委托常州机械冶金公司主持,新华日报,常州电视台及广播局记者对会议进行了采访。
South China Institute of Mining and Metallurgy Wujin copper powder metallurgy plant jointly developed 95 series diesel engine rod powder metallurgy brass bushings, in 1984 September passed the appraisal. The sleeve can meet the design requirements and can replace the casting machine 6-6-3 tin bronze sleeve, with obvious technical and economic benefits. The material utilization rate can be increased from 23.8% of the foundry machine to 95%, that is, the material utilization rate is increased by 3 times while the cost is 70% of that of ZQSn6-6-3 bronze. In addition, a large amount of precious metal tin . Appraisal will be chaired by the Machinery Industry Department of Jiangsu Province, Changzhou Machinery Metallurgical Company, Xinhua Daily, Changzhou Television Station and Broadcasting Bureau interviewed the meeting.