沈阳黎明机械厂,在“鞍钢宪法”光辉照耀下,大搞技术革新,通过多次试验,终于成功地用粉末冶金刀杆代替了45号钢刀杆。他们共压制成33种粉末冶金刀杆,其中有13种经过7个月的实际使用,效果良好。粉末冶金刀杆平均每把工时只15分钟(45号钢刀杆90分钟),单价只1.85元(45号钢刀杆5.25元)。该厂初步估计,一年可 Shenyang Liming Machinery Factory, in the “Anshan Iron and Steel Constitution” glorious shine, engage in technological innovation, through many tests, and finally succeeded in replacing PM 45 with Arbor Arbor. They pressed a total of 33 kinds of powder metallurgy arbor, of which 13 after 7 months of actual use, the effect is good. Powder metallurgy arbor averaging only 15 minutes per hour (45 steel bar 90 minutes), priced at only 1.85 yuan (45 steel bar 5.25 yuan). The plant initially estimated that a year can be