超低频磁性检测技术在电站锅炉奥氏体不锈钢管内壁检测中的应用
Ultra Low Frequency Magnetic Inspection of Oxide Scale Exfoliation of Heated Austenite Stainless Steel Tube in Power Station Boilers
摘 要
分析了电站锅炉奥氏体不锈钢管内壁氧化皮形成和脱落的原因,介绍了一种适用于奥氏体不锈钢管受热面内壁氧化皮脱落的快速检测方法-超低频磁性检测技术,对超低频磁性检测技术的原理、特点、检测工艺及现场应用情况进行了阐述.实践证明,该检测方法可以快速、直观、准确地检测奥氏体不锈钢管内壁的氧化皮脱落和管内的铁磁性物质,为电站锅炉质量监督和安全运行提供了有效的检测手段.
奥氏体不锈钢
氧化皮
快速检测
Power station boiler
Austenite stainless steel
Oxide scale
Fast inspection
Abstract
In this paper,the oxide scaleformation and exfoliation of the austenitestainless steel tubes in power station boilers are analized,and a fast inspection method of ultra low frequency magnetic inspection technology ,is introduced to be applicable to the oxide scale exfoliation of heated austenite stainless steel tube face.The principle,characteristics,inspection process and engineering application of ultra low frequency magnetic inspection technology are elaborated.Through the practical application verification,the oxide scale and other ferromagnetic material in the austenite stainless steel tubes can be rapidly,visually,and accurately detected .The technology provides a feasible method for the quality supervision and safe operation of power station boilers.
中图分类号 TG115.28 DOI 10.11973/wsjc201507014
所属栏目 实践经验
基金项目
收稿日期 2014/8/18
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备注牟彦春(1972-),男,本科,高级工程师,主要从事特种设备检验检测及检验检测新技术的应用研究工作.
引用该论文: MU Yan-chun,XU Wen-sheng,LI Jian-feng. Ultra Low Frequency Magnetic Inspection of Oxide Scale Exfoliation of Heated Austenite Stainless Steel Tube in Power Station Boilers[J]. Nondestructive Testing, 2015, 37(7): 57～60
牟彦春,徐文胜,李剑峰. 超低频磁性检测技术在电站锅炉奥氏体不锈钢管内壁检测中的应用[J]. 无损检测, 2015, 37(7): 57～60
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参考文献
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