摘要
承压设备在制造和使用过程中,母材部位容易出现内部分层、表面裂纹、氢致开裂、氢鼓包、内部凹坑腐蚀、复合板和堆焊层未结合等缺陷。针对较为典型的三类缺陷进行了相控阵CIVA仿真,研究了母材部分的检测工艺,并进行了现场检测验证试验,与仿真结果进行了比对,总结了各类缺陷图谱的特点。结果表明:相控阵检测技术对于承压设备母材部位的缺陷具有较高的检出率,可在设备不开罐、不清管的工况下对承压设备进行母材部位缺陷的检测,以为化工企业节约成本,提供便利。
During the manufacture and use of pressure-bearing equipment, defects such as internal delamination, surface cracks, hydrogen-induced cracking, hydrogen bulging, internal pit corrosion, composite plates, and unbonding layers are prone to occur in the base material. In this paper, the phased array CIVA simulation is carried out for three typical defects. The inspection process of the base metal part is mainly studied, and the on-site inspection and verification are carried out. The simulation results are compared with the on-site inspection, and the features of various defect maps are summarized. The results show that the phased array inspection technology has a high detection rate for the defect of the base material of the pressure equipment, and can realize the detection of the defects of the base material under the conditions of running, thus helping the chemical companies to save costs and provide convenience.
作者
许波
张子健
吴家喜
张小龙
柴军辉
周晓彤
XU Bo;ZHANG Zijian;WU Jiaxi;ZHANG Xiaolong;CHAI Junhui;ZHOU Xiaotong(Ningbo Labor Safety and Technology Services Company,Ningbo 315048,China;Ningbo Special Equipment Inspection and Research Institute,Ningbo 315048,China)
出处
《无损检测》
2018年第10期34-38,共5页
Nondestructive Testing
基金
浙江省质监系统质量技术基础建设项目(20180119)
关键词
超声相控阵
母材缺陷
CIVA仿真
无损检测
ultrasonic phased array
defect of parent material
CIVA simulation
nondestructive testing
