电站锅炉小径管坡口未熔合缺陷的检出率分析
Detection rate analysis of imcomplete fusion defect in small diameter pipe groove of power plant boiler
摘 要
对某电站锅炉空间受限区域的小径管进行相控阵超声检测和射线检测,并对检测结果进行对比分析。分析结果表明,相控阵超声检测对坡口未熔合缺陷的检出率明显高于射线检测的检出率,可以有效提升焊接质量,避免缺陷漏检带来的危害。
射线检测
相控阵
未熔合
small diameter pipe
radiographic testing
phased array
imcomplete fusion
Abstract
Phased array ultrasonic testing and radiographic testing were carried out on small diameter tubes in the confined space of a power plant boiler, and the test results were compared and analyzed. It was shown that the detection rate of incomplete fusion defects in groove by phased array ultrasonic testing was significantly higher than that by radiographic testing, which may effectively improve the welding quality and avoid the hazards caused by defect omission.
中图分类号 TG115.28 DOI 10.11973/wsjc202203015
所属栏目 实践经验
基金项目 福建省质量技术监督局科技项目(FJMS2020017)
收稿日期 2021/9/3
修改稿日期
网络出版日期
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备注苏宣机(1969-),男,高级工程师,主要从事锅炉、压力容器、压力管道检验检测工作
引用该论文: SU Xuanji,WU Linjun. Detection rate analysis of imcomplete fusion defect in small diameter pipe groove of power plant boiler[J]. Nondestructive Testing, 2022, 44(3): 68～70
苏宣机,吴林军. 电站锅炉小径管坡口未熔合缺陷的检出率分析[J]. 无损检测, 2022, 44(3): 68～70
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参考文献
【1】刘毅辉,牛永吉,王郑钢.锅炉小径管射线检测与相控阵检测的对比分析[J].无损检测,2018,40(4):45-49.
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