薄壁钛管涡流检测异常一例
Study on Abnormality Electromagnetic Testing abnormal of Thin-walled Gr.2 Titanium Tubes
摘 要
针对薄壁Gr.2钛管涡流检测时报警的现象, 采用UT、PT、金相等方法进行了检测分析, 并根据涡流检测报警信号连续出现, 与标准管报警信号的相位角不重合的特点, 分析了可能产生报警的原因。通过工序之间的检测, 找到了产生涡流报警的工序, 采用对涡流检测报警的管材再次进行溜轧的方法, 消除了该管材的报警信号。采用对管材加套管进行矫直的方法, 解决了该规格管材涡流检测报警的问题。
矫直
涡流
Gr.2 titanium thin-walled tube
Straightening
Electromagnetic testing
Abstract
Ultrasonic testing, penetration testing and metallographic testing were used to analyze the abnormality during electromagnetic testing of thin-walled gr.2 titanium tubes. The characteristics of ET alarm appeared continuously and were found in misalignment with phase angle of standard pipe alarm signal. The possible causes of alarm were analyzed and the cause of ET alarm procedures was found between different processes. Alarm signal of the pipes was eliminated by slipped rolling method and it was confirmed that straightening was the main reason of ET abnormality. By using the method of straightening with liner tube, the problems of ET alarm were solved.
中图分类号 TG115.28
所属栏目 实践经验
基金项目
收稿日期 2014/1/24
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备注杨亚社(1973-), 男, 高级工程师, 主要从事钛及钛合金材料加工工作。
引用该论文: YANG Ya-she,YANG Yong-fu,MA Xiao-ju,LI Gang,NAN li,LUO Deng-chao,TANG Jin. Study on Abnormality Electromagnetic Testing abnormal of Thin-walled Gr.2 Titanium Tubes[J]. Nondestructive Testing, 2014, 36(12): 87～88
杨亚社,杨永福,马小菊,李刚,南莉,罗登超,唐进. 薄壁钛管涡流检测异常一例[J]. 无损检测, 2014, 36(12): 87～88
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参考文献
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【2】张文科.超声波探伤中缺陷波和伪缺陷波的判别［J］.无损检测, 2005, 27(1)：47-50.
【3】张才良.涡流检测对比试样的作用［J］.无损检测, 2013(3)：38-41.
【4】李恒羽.锆管涡流检测中异常噪声分析［J］.无损检测, 2008, 30(2)：107-109.
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