我们过去对有色金属的垫圈都是用冲压法冲制的,材料利用率很低,有浪费。洪锦心同志动脑筋、想办法,改进一套工具来代替过去的冲制方法,从而节约了许多有色金属材料。例如制造φ142.5×φ134×1公厘的垫圈,用冲压法要用料0.22公斤,用这套工具卷制只要0.02公斤,而且还可以利用报废的条料加工,如材料厚0.25～0.5公厘,一次可以卷制两个。这套工具的结构比较简单,如附图所示。卷制的时候,先把底座固定在钳台上(或在虎钳上夹紧),转动手柄,使上下盘放出一些空隙,把剪好的条料插 In the past, all of our nonferrous metal gaskets were punched with stamping method. The material utilization rate is very low and wasteful. Hong Jinxin comrades brains, think of ways to improve a set of tools to replace the past of the punching method, thus saving a lot of non-ferrous metal materials. For example, to make a washer of φ142.5 × φ134 × 1 mm, 0.22 kg is used for the stamping method, and 0.02 kg is used for this tool. It is also possible to process scrapped material such as 0.25-0.5 mm , One can roll two. The structure of this tool is relatively simple, as shown in the attached figure. When rolling, the base is fixed on the clamping table (or clamped on the vise), and the handle is rotated to release some gaps between the upper and lower disks. The cut strips are inserted