Cause Analysis and Preventive Measures for Longitudinal Cracks in Welding of Small Diameter Copper-Nickel Elbows
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.
UNS C70600small diameter elbow fittingswelding longitudinal cracksheat input
万方数据
维普
