| ASME法规对超声TOFD法的新规定第二部分:图像判读 |
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| 引用本文： | 李衍. ASME法规对超声TOFD法的新规定第二部分:图像判读[J]. 无损检测, 2007, 29(5): 294-300 |
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| 作者姓名： | 李衍 |
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| 作者单位： | 江苏太湖锅炉股份有限公司,无锡,214187 |
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| 摘 要： | 介绍了ASME法规2006增补版有关TOFD技术的检测结果——图像判读要求。概述了TOFD识谱原理和缺陷定位定量法则;评析了22例焊接缺陷典型图谱。
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| 关 键 词： | 超声检测 TOFD法 灰谱图 缺陷定量 波形相位 缺陷表征 |
| 文章编号： | 1000-6656（2007）05-0294-07 |
| 收稿时间： | 2006-12-28 |
| 修稿时间： | 2006-12-28 |
New Requirements for TOFD Technique in ASME Code Part 2: Images Interpretation |
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| LI Yan. New Requirements for TOFD Technique in ASME Code Part 2: Images Interpretation[J]. Nondestructive Testing, 2007, 29(5): 294-300 |
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| Authors: | LI Yan |
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| Affiliation: | Jiangsu Taihu Boiler Co. Ltd, Wuxi 214187, China |
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| Abstract: | The new requirements for TOFD technique specified in the latest edition(2006 addenda) of the ASME Code were presented.The second part is the requirements for interpretation of images as TOFD results.First of all,it gives an outline of the principle of reading a grayscale image and the rules of locating and measuring flaw indications.Then it analyzes the typical images with 22 examples of flaws in welds.Learning by analogy,we can get guidelines for performing TOFD and evaluating results of inspection on pressure vessels. |
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| Keywords: | Ultrasonic testing TOFD technique Grayscale image Flaw Measuring Waveform phase Flaw characterization |
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