在电机生产中,硅(矽)鋼片的冲制占有很重要的地位。所以改进制造冲模的方法是个很关键的問題。在生产大跃进中,我厂冲模制造小組的同志們动了很多脑筋,先后提出一些改进制造冲模的方法,但都还不能跳出手工制造的圈子,不能滿足生产上对冲模制造速度的要求。后来,鉗工徐瑾坤、刘细南等5位师傅大胆革新,提出用挤压法制造冲头,經过多次試驗,反复修改,終于基本上取得了成功。 In the motor production, silicon (silicon) steel stamping occupies a very important position. So improving the method of making a die is a crucial issue. During the Great Leap Forward, comrades of our die manufacturing group moved a lot of brains and put forth some ways to improve the manufacturing of dies. However, none of them could jump out of hand-made circles and could not meet the production speed requirements for die making. Later, the fitters Xu Jinkun and Liu Nanan made bold innovations and proposed making the punches by extrusion. After many tests and repeated changes, they finally succeeded.