过去,由于管子规格、导管弯曲半径没有优选标准,我公司在生产的各机型上选用的管子规格和导管弯曲半径多而散,实现导管弯曲机械化数控化存在不少困难。为了改变导管弯曲工艺的落后状况,我公司根据《冷弯铝合金导管特殊最小弯曲半径企标Q/5A1095-85》,弯管模企标Q/5A585～589-82,导管最小弯曲半径航标HB4-55-83和金属材料限用清册Q/ In the past, there was not a preferred standard for tube bending radius because of tube specifications. The tube specifications and tube bending radii selected by our company on each model were many and scattered, and there were many difficulties in mechanized numerical control of tube bending. In order to change the backward condition of the catheter bending process, our company according to “the minimum bending radius of cold-formed aluminum alloy catheter Q / 5A1095-85”, the bending mold standard Q / 5A585 ~ 589-82, the catheter minimum bending radius buoy HB4 -55-83 and metal materials limited to Q /