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21号机变压器硅钢片,由于零件材料薄而脆,加上数量大,对模具的要求特别高。长期以来成为我厂冲压生产的薄弱环节。打倒四人帮,思想大解放。冲床班的老师付在模具结构上进行了大胆创新,并采用了斜楔机构来带动夹滚式自动送料装置,使效率提高到8～10倍,冲床的行程次数利用率达到80～90％,降低了材料消耗5％,也保证了安全生产,由于模具采用W18Cr4V材料,采取先热处理,后成型的新工艺,使模具的寿命大大延
21 machine transformer silicon steel, thin and brittle parts of the material, coupled with the large number of special requirements on the mold. For a long time I have become the production of stamping the weak link. Down with the Gang of Four, the liberation of ideas. Punch class teacher paid a bold innovation in the mold structure and the use of a wedge mechanism to drive the folder-type automatic feeding device, so that efficiency increased to 8 to 10 times, the punch stroke utilization rate of 80 to 90% Reduce the material consumption of 5%, but also ensure the safety of production, due to mold using W18Cr4V material, take the first heat treatment, after forming a new process, the mold life greatly extended