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。
The echo height exceeding prescrihed 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.
出处
《无损检测》
2011年第4期75-78,共4页
Nondestructive Testing
关键词
超声波检测
曲率半径
伪缺陷识别
Ultrasonic testing
Curvature radius
False defect identification
