压力容器2024，Vol.41Issue(4)：72-79,8.DOI:10.3969/j.issn.1001-4837.2024.04.009
压力容器小径支管角焊缝相控阵检测埋藏缺陷回波特性研究
Study on echo characteristics of fillet weld in small diameter branch pipe of pressure vessel by phased array detection
摘要
Abstract
The fillet weld model of small diameter nozzles of pressure vessels was simulated and analyzed by CIVA software.The echo response law and characteristics of typical defects such as ball hole,through hole,incomplete fusion,incomplete penetration and crack were studied.The results show that the echo intensity of different defects is different compared with the signal of end-angle structure.The echo intensity of the area defect is highest when the beam angle is 90 °.The echo intensity of the same defect is obviously different when it is in different positions,the maximum reaches 13 dB.The simulated specimens with typical defects were designed and processed.The test results of five typical defects were analyzed.The results show that the defects in the samples can be effectively detected.The change rule of echo characteristics of different defects was summarized,which can provide reference and basis for defect qualitative analysis in field inspection.关键词
压力容器/角焊缝/相控阵检测/回波特性Key words
pressure vessel/fillet weld/phased array testing/echo characteristics分类
机械制造引用本文复制引用
王鹏,崔伟,马金龙,童根,张烜玮,孙明,常泽亮..压力容器小径支管角焊缝相控阵检测埋藏缺陷回波特性研究[J].压力容器,2024,41(4):72-79,8.基金项目
中国石油天然气股份有限公司塔里木油田公司科研项目(201022073420) （201022073420）
中国特种设备检测研究院青年项目(2022青年10) （2022青年10）
