按照设计,我矿的冷库设备,都是φ38毫米的无缝钢管,弯成半径110毫米的半圆,再和直管焊接而成的双层和四层的排管设备。可我矿及本地区只有一台中型弯管机,其最小弯曲半径为150毫米。在通常情况下,该机床是不能适用的。为了能在该设备上弯制出合乎要求的半径,我们设计了超小模具。 According to the design, the mine cold storage equipment, are φ38 mm seamless steel pipe, bent into a semicircle of 110 mm in radius, and then straight pipe welded double and four rows of pipe equipment. However, there is only one medium-sized pipe bender in mine and in the region with a minimum radius of curvature of 150 mm. Under normal circumstances, the machine is not applicable. In order to bend the device to the desired radius, we designed the ultra-small mold.