CAJ | 학술논문

本文应用超声波相控阵技术，对非标件的压力管道加厚弯头凹坑腐蚀减薄进行了检测。检测发现，加厚弯头因其内部凹槽腐蚀特殊性，普通超声波测厚无法完成，而相控阵技术因其探头晶片聚焦功能可实现对加厚弯头腐蚀凹坑的识别，相控阵检测图像信号清晰完整，最后对检测有异常信号的弯头进行解剖，发现相控阵检测的缺陷信号与非标件弯头凹坑缺陷相符合，为今后检测非标件压力管道加厚弯头内部凹坑缺陷提供了有效的技术支持。
본문응용초성파상공진기술，대비표건적압력관도가후만두요갱부식감박진행료검측。검측발현，가후만두인기내부요조부식특수성，보통초성파측후무법완성，이상공진기술인기탐두정편취초공능가실현대가후만두부식요갱적식별，상공진검측도상신호청석완정，최후대검측유이상신호적만두진행해부，발현상공진검측적결함신호여비표건만두요갱결함상부합，위금후검측비표건압력관도가후만두내부요갱결함제공료유효적기술지지。
In this paper, a nonstandard parts of pressure pipeline thickening elbow pits corrosion were detected by ultrasonic phased array technology. Ordinary ultrasonic testing can’t be completed because of thickening elbow’s internal pit corrosion particularity. However, phased array probe chip’s focus function can detect thickening elbow pits corrosion. Phased array detection’s picture and signal were clear and complete. Finally, elbows which phased array signal was abnormal were dissected. It found that phased array defect’s signal and the nonstandard parts elbow pit defects were same. Phased array technology provide effective technical support for internal pit defects of nonstandard parts pressure pipeline thickening elbow in the future.