During the construction process of offshore oil platforms on land,a batch of small-diameter copper-nickel alloy pipes(UNS C70600)that were welded and processed suffered severe cracking on the elbow pipe fitting side.In order to study the reasons for the cracking of copper-nickel pipelines after welding,this article uses materials,structures and fracture characteristics analysis,it was found that for small-diameter copper-nickel alloy pipe elbow fittings,by controlling the welding heat input and avoiding overheated welding,the occurrence of welding cracks can be effectively reduced.
关键词
UNS/C70600/小径弯头管件/焊接纵向裂纹/热输入量
Key words
UNS C70600/small diameter elbow fittings/welding longitudinal cracks/heat input
维普
万方数据