我厂三一八车间1800吨卧式水压穿孔机是国外进口设备。该设备由于多年使用,主水缸体已经破裂,必须更换方可生产。但是,这种大型部件没有备件,而委托国内有关单位加工绝非短时间可以完成。为了保证按时完成大修计划,在我厂设备和技术等的有限条件下,机修车间的职工们以大干“四化”的革命精神,千方百计克服困难,终于自制成功主水缸体。大型缸体的制造在国内外多由锻坯加 1800 sets of 1800 tons of horizontal hydraulic punching machine in our workshop are foreign imported equipment. The device has been used for many years, the main water tank has been broken, it must be replaced before production. However, there are no spare parts for such large components, and it is by no means a short time to complete the tasks entrusted to the relevant domestic units. In order to ensure timely completion of the overhaul plan, under the limited conditions of equipment and technology in our factory, the staff in the mechanic workshop made every effort to overcome the difficulties with the revolutionary spirit of “four modernizations” and finally made the self-made master cylinder body. Large cylinder manufacturing at home and abroad by more forging plus