天津市医疗机械厂45吨冲床,因为下部两个立柱(立柱断面积为130×130毫米)与冲盘之间出现了长130毫米、深80毫米的裂纹,已不能使用,影响了该厂生产任务的完成,为了尽快修复使之投入生产,在天津市毛泽东思想技术协作组的大力帮助下,用气焊工艺方法、修复了这台冲床。工艺过程如下:1.用电钻开坡口,再用木炭将欲焊补处局部加热到500℃左右; Tianjin Medical Machinery Factory 45 tons punch, because the lower two columns (column cross-sectional area of ​​130 × 130 mm) and the plate between the emergence of a 130 mm long, 80 mm deep crack, can not be used, affecting the plant production The completion of the task, in order to repair as soon as possible to put into production, with the great help of Tianjin Mao Zedong Thought Technical Collaboration Group, with gas welding process method to repair the punch. Process is as follows: 1 with electric drill beveling, and then charcoal will be welded to make up local heating to about 500 ℃;