| 高温紧固螺栓裂纹超声波探伤方法的试验分析 |
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| 引用本文： | 王立新,鲁玉龙,王英军,王海学,张立文.高温紧固螺栓裂纹超声波探伤方法的试验分析[J].华北电力技术,2006(7):11-13. |
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| 作者姓名： | 王立新 鲁玉龙 王英军 王海学 张立文 |
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| 作者单位： | 内蒙古电力科学研究院,内蒙古,呼和浩特,010020;内蒙古达拉特发电厂,内蒙古,达拉特旗,014300 |
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| 摘 要： | 分别使用普通单直探头和小角度纵波斜探头对火电厂高压导汽管和调速汽门两类柔性无中心孔高温紧固螺栓杆部、螺纹根部环向裂纹进行超声波检测试验,结果表明两种探伤方法均能在基准灵敏度下有效地对裂纹缺陷进行检出,但是使用普通单直探头方便快捷,检出的裂纹波幅明显高于小角度纵波斜探头方法。
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| 关 键 词： | 高温紧固螺栓 超声波探伤 单直探头 小角度纵波斜探头 |
| 文章编号： | 1003-9171(2006)07-0011-03 |
| 收稿时间： | 2006-06-16 |
| 修稿时间： | 2006年6月16日 |
Test and Analysis of Ultrasonic Detection Method for High-temperature Tightening Bolts |
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| Wang Li-xin,Lu Yu-long,Wang Ying-jun,Wang Hai-xue,Zhang Li-wen.Test and Analysis of Ultrasonic Detection Method for High-temperature Tightening Bolts[J].North China Electric Power,2006(7):11-13. |
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| Authors: | Wang Li-xin Lu Yu-long Wang Ying-jun Wang Hai-xue Zhang Li-wen |
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| Affiliation: | 1. Inner Mongolia Electric Power Research Institute, Huhhot 010020, China; 2. Inner Mongolia Dalate Power Plant, Dalate 014300, China |
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| Abstract: | Cracks around high temperature bolt stud and thread root of high pressure vapor riser and governing valve are checked with ultrasonic detection by using single-straight probe and tilting probe.The test result shows both detection methods are able to find cracks precisely at basic sensitivity,but it is more convenient and faster to use single-straight probe detection,for the crack echo it detected is obviously higher than that with tilting probe method. |
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| Keywords: | high temperature tightening bolt ultrasonic detection single-straight probe tilting probe |
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