奥氏体不锈钢换热器管的涡流检测

沈建民; 邱法聚; 王小华

奥氏体不锈钢换热器管的涡流检测

宁波市特种设备检验检测中心，宁波315020

详细信息

作者简介:
沈建民(1980-)，男，硕士，助理工程师，主要从事压力容器和压力管道的定期检验。

中图分类号: TG115.28
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出版历程
- 收稿日期: 2008-06-24
- 刊出日期: 2008-08-09

Eddy Current Testing of Austenitic Stainless Steel Heat Exchanger Tube

摘要

摘要: 介绍采用双频涡流技术检测奥氏体不锈钢换热器管。在对比样管上的检测试验发现，样管上的相位-壁厚减薄曲线与各类文献中的缺陷标准曲线存在较大差异。比较了自然缺陷与人工缺陷信号间的差异，分析了因换热器管在制造过程中形成的台阶状壁厚变化导致的伪缺陷信号。利用幅-相报警功能可辅助监控被检区域。结果表明，涡流检测速度快、成本低，可有效应用于奥氏体不锈钢换热器管的检测。
- 涡流检测 /
- 奥氏体不锈钢 /
- 换热管 /
- 信号 /
- 缺陷
Abstract: Double frequency method of conventional eddy current testing technology to inspect the austenitic stainless steel heat exchanger tube was introduced. It showed that the curve of phase against thickness decrease was greatly different from the stand curve in several kinds of literatures. The difference between the nature defect and artificial defect signals was compared, and the false defect signal excited by step-change of thickness in heat exchanger tube formed in manufacturing process was analyzed. Defect could be inspected by the assistant function(Altitude-Phase Warning). Through the analysis of the value of eddy current testing, it conclude that eddy current testing was in advantage of high speed, low prices, and being effect in inspecting the austenitic stainless steel heat exchanger tube.
- Eddy current testing /
- Austenitic stainless steel /
- Heat exchanger tube /
- Signal /
- Defect

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参考文献(1)

[1]	王海波，宋树波，邵泽波.涡流检测中探头运动速度对检测信号的影响分析\[J\].吉林化工学院学报,2004,21(3):83-85.

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奥氏体不锈钢换热器管的涡流检测

作者简介: 沈建民(1980-)，男，硕士，助理工程师，主要从事压力容器和压力管道的定期检验。

计量

出版历程

Eddy Current Testing of Austenitic Stainless Steel Heat Exchanger Tube

计量

出版历程

目录

作者简介:
沈建民(1980-)，男，硕士，助理工程师，主要从事压力容器和压力管道的定期检验。