摘要
针对某公司加氢裂化装置中,与过滤器相连的膨胀节波纹管出现的泄漏现象,对失效的波纹管进行了宏观形貌、微观形貌、腐蚀产物能谱、金相组织及材料化学成分等分析,结果发现晶间腐蚀是造成失效的主要原因,并据此提出了改进措施。
Against the leakage of bellow expansion joint connected with filter in hydrocracking unit,macroscopic appearance,micro-topography,power spectrum of corrosion product,micro structure and material chemical composition analysis are carried out on bellow expansion joint.The results show that intercrystalline corrosion is the principal reason for the failure.Corresponding improvement measures are put forward.
出处
《石油化工设备技术》
CAS
2009年第1期50-53,56,共5页
Petrochemical Equipment Technology
关键词
波纹管膨胀节
失效分析
晶间腐蚀
Bellow expansion joint
Failure analysis
Intercrystalline corrosion
