基于金属磁记忆方法的压力容器对接焊缝应力检测
Stress Inspection of Pressure Vessel Butt Weld Based on Metal Magnetic Memory Technique
摘 要
压力容器运行中易在应力集中区出现各种损伤，因此找出并消除应力集中区对稳定压力容器的使用寿命非常有益。阐述了金属磁记忆方法的基本原理、诊断设备的参数设置，并通过分析软件得到的数据，根据相关标准计算09MnNiDR对接焊缝和热影响区的残余应力分布情况。分析结果表明，热影响区残余应力高于焊缝，数据结果与同类焊接工艺下的试验和数值分析基本吻合。说明磁记忆检测可发现压力容器的应力集中区，实现压力容器的早期诊断。
对接焊缝
应力集中
Metal magnetic memory
Butt-welded
Stress concentration
Abstract
It is probable to occur many kinds of damage in the area of stress concentration zone when the pressure vessel is in operation, so finding those injury and eliminate the stress concentration is very useful to stable pressure vessel for improving its usage life. This paper is mainly to summarize the basic principle and parameter set of the diagnose equipment of the metal magnetic memory. And it calculated the residual stress distribution of 09MnNiDR butt-welded(WM) and heat affected zone(HAZ) according to the relevant standards with the data being analyzed with one software. The result of the analysis showed that the residual stress of heat affected zone was higher than welding and it was also similar with the result of experimentation and numerical analysis based on the same welding procedure. It revealed that magnetic memory test could find the stress concentration zone of pressure vessels, and could be used for the early diagnosis of pressure vessels.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2010/5/30
修改稿日期
网络出版日期
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备注章彬斌(1986-)，男，学士，主要从事锅炉压力容器检验检测工作。
引用该论文: ZHANG Bin-Bin,LIANG Bin. Stress Inspection of Pressure Vessel Butt Weld Based on Metal Magnetic Memory Technique[J]. Nondestructive Testing, 2011, 33(3): 31～33
章彬斌,梁斌. 基于金属磁记忆方法的压力容器对接焊缝应力检测[J]. 无损检测, 2011, 33(3): 31～33
被引情况:
【1】徐金龙,曹标,洪武兴,吕善胜,冯浚汉,华彬,杨树洁, "国内外石油套管无损检测标准体系",无损检测 36, 72-77(2014)
【2】徐金龙,徐凌云,林海,冯浚汉,吕善胜,华斌,田琼, "金属磁记忆诊断在石油套管检测中的应用",无损检测 36, 38-40(2014)
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参考文献
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【2】任吉林，林俊明.金属磁记忆检测技术［M］.北京：中国电力出版社,2000.
【3】任吉林，高春法，宋凯，等.电站磁铁构件的磁记忆检测［J］. 仪器仪表学报,2003,24(5):470-472.
【4】王占英，李恒，马轶群，等.低温材料09MnNiDR的焊接工艺［J］.焊接,2006(2):63-65.
【5】BS ISO24497-3：2007Non-Destructive Testing Metal Magnetic MemoryPart3Inspection of Welded Joints[S].
【6】赵学荣，朱援祥，孙秦明.对接焊缝残余应力的有限元分析［J］.焊接技术,2003,32(5):14-16.
【7】Tso-Liang Teng, Peng-Hsiang Chang, Wen-Cheng Tseng. Effect of welding sequences on residual stress[J]. Comput Struct,2003,81(5):273-286.
【8】李亚江.焊接组织性能与质量控制［M］.北京：化学工业出版社,2004.
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