锅炉受热面奥氏体不锈钢管弯头表面裂纹涡流检测技术研究

沈丁杰; 邹建伟; 胡彬

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锅炉受热面奥氏体不锈钢管弯头表面裂纹涡流检测技术研究

研究与试验 | 更新时间：2025-11-18

- 锅炉受热面奥氏体不锈钢管弯头表面裂纹涡流检测技术研究
- Study on eddy current testing technique of austenitic stainless steel tube elbow surface crack for boiler heating surface in thermal power plants
- 湖南电力 2011年31卷第3期页码：5-7
- 作者机构：
  
  湖南省电力公司科学研究院
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TK223.3
- 纸质出版：2011
- 稿件说明：
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[1]沈丁杰,邹建伟,胡彬.锅炉受热面奥氏体不锈钢管弯头表面裂纹涡流检测技术研究[J].湖南电力,2011,31(03):5-7.

SHEN Ding-jie, ZOU Jian-wei, HU Bin. Study on eddy current testing technique of austenitic stainless steel tube elbow surface crack for boiler heating surface in thermal power plants[J]. 2011, 31(3): 5-7.
[1]沈丁杰,邹建伟,胡彬.锅炉受热面奥氏体不锈钢管弯头表面裂纹涡流检测技术研究[J].湖南电力,2011,31(03):5-7. DOI：

SHEN Ding-jie, ZOU Jian-wei, HU Bin. Study on eddy current testing technique of austenitic stainless steel tube elbow surface crack for boiler heating surface in thermal power plants[J]. 2011, 31(3): 5-7. DOI：

摘要

针对火电厂锅炉受热面奥氏体不锈钢管弯头涡流检测的特点

设计制作马鞍型阵列式涡流探头和对比试样

改进升级ET-556H多频涡流检测仪

并通过试验提出火电厂锅炉受热面奥氏体不锈钢管弯头涡流检测的最佳参数。本涡流检测技术不仅方便操作

而且可提高检测分辨率和灵敏度

对于火电厂锅炉受热面奥氏体不锈钢管外表面0.4 mm深的周向线性缺陷和0.5 mm深的轴向线性缺陷具有较高的检测灵敏度。

Abstract

For eddy current testing characteristics of austenitic stainless steel tube elbow of the boiler heating surface

saddle array eddy current sensors and reference blocks were designed and made

and ET-556H multi-frequency eddy current analyzer were improved.The best parameters of eddy current testing of austenitic stainless steel tube elbow for boiler heating surface were proposed by experiment.The eddy current testing technique is easy to operate

and can improve the detection resolution and sensitivity.Especially it is with high sensitivity for 0.4mm deep circumferential linear defects and 0.5mm deep axial linear defects of outer surface of austenitic stainless steel.

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