Method for preparing large-diameter white copper pipe

A method to produce adnic alloy pipe with large diameter, mainly contains expanded diameter tension combined with reducer diameter tension, the procedure is as following: casting -> sawing -> extrusion -> sawing ->expanded diameter tensio-> annealing ->reducer diameter tension ->detection-> annealing -> packaging; So as to achieve tensibility of the large diameter adnic alloy pipe, improve productive efficiency and furthermore to achieve the adnic alloy pipe with high-precision and large-diameter.