东方红54型拖拉机支重轮密封罩(如图1)是一种薄板压延零件。这种零件的压延是深压延,一般的冲床是不能压延的,而一般县级修造厂又缺乏深压延设备,所以这种配件长期缺乏。压延这种配件的压延工序如图2:落 Dongfanghong 54 tractor roller seal cover (Figure 1) is a sheet rolling parts. This part of the rolling is deep rolling, the general press can not be rolled, and the general lack of county-level repair plant deep-rolling equipment, so the lack of long-term such accessories. Calendering this part of the calendering process shown in Figure 2: Fall