Waveform Identification of Defects in Ultrasonic Testing of Steel Tubes
-
摘要: 双面埋弧焊钢管焊缝超声检测时经常出现回波超标问题，其中的伪缺陷严重干扰了检测人员对缺陷的判定。实例介绍了夹杂物、焊趾裂纹和成分偏析的回波特征，并提出了多种伪缺陷波形的判别方法。Abstract: The echo height exceeding prescribed level often appears in the double-submerged arc-welded steel pipe weld ultrasonic detection, which is to seriously affect defects judgements for inspection personnel. The characteristic wave echo of some defects such as inclusion, crack and chemical composition segregation was introduced by examples, and the judge methods for false defect wave were putforward also.
-
Keywords:
- Ultrasonic testing /
- Curvature radius /
- False defect identification
-
-
[1] 张文钺.金属熔焊原理及工艺[M].北京：机械工业出版社,1981. [2] API SPEC 5L: 2007管线钢管规范第44版[S]. [3] ASTM E273焊接钢管焊接区超声波检验标准作法[S]. [4] ASTME114接触式超声波纵波脉冲回波检验标准作法[S]. [5] 胡天明.超声探伤[M].武汉：武汉测绘科技大学出版社,1994. [6] 超声探伤编写组.超声波探伤[M].北京：劳动人事出版社,1989. [7] 尚庆祥，唐宏伟.高层钢结构现场安装焊缝的超声波探伤[J].施工技术,1999,6(6):23-24.
计量
- 文章访问数: 4
- HTML全文浏览量: 0
- PDF下载量: 5
下载:
