沈阳黎明机械厂过去车削加工都是使用45号钢的刀杆。做这种刀杆要经过下料、锻造、正火、铣方,铣型、铣刀片槽等七道工序,耗费了大量工时,占用了很多设备,吃掉了许多钢材。在“鞍钢宪法”光辉照耀下,该厂革命职工,破除迷信,解放思想,大搞技术革新,采用铁粉加入1.5—3.0%铜粉,0.4—0.8%石墨,0.5%硬质酸锌,0.2%机油,压制成33种粉未冶金刀杆,其中有13种经过7个月实际使用,效果良好,粉末冶金刀杆只有3道工序,比生产45号钢刀杆减少4道;生产每把刀杆由原来90分钟缩短到15分钟;每把刀杆由5.25元降到1.85元。一年可为国家节约90多吨优质钢材、14万个劳动工时、30多台机床,促进了生产的发展。 Shenyang Liming Machinery Factory used turning shafts of No.45 steel in the past. This kind of tool bar has to undergo seven processes such as blanking, forging, normalizing, milling, milling, and milling and inserting the groove, which takes a lot of man-hours, occupies a lot of equipment, and eats a lot of steel. Under the brilliance of the “Anshan Iron and Steel Constitution”, the factory’s revolutionary workers broke through superstitions, emancipated the mind, and advanced technological innovations. It used iron powder to add 1.5-3.0% copper powder, 0.4-0.8% graphite, 0.5% zinc stearate, 0.2 The engine oil was pressed into 33 kinds of powdered metal arbors, 13 of which were actually used after 7 months. The effect was good. The powder metallurgy arbor had only 3 working procedures, which was 4 more than the production of No. 45 steel arbors; each was produced. The length of the arbor was reduced from 90 minutes to 15 minutes; each arbor was reduced from 5.25 yuan to 1.85 yuan. In one year, the country can save more than 90 tons of high-quality steel, 140,000 labor hours and more than 30 machine tools, which promotes the development of production.