管材焊缝超声波检测中缺陷的定位  

The Defect Location in Ultrasonic Testing of Weld on Pipe

作　　者：巨西民[1] 莫润阳[2] 姚欢[3] 罗华权[3] 蒋承君[3] 

机构地区：[1]西安交通大学,西安710049 [2]陕西师范大学陕西省超声学重点实验室,西安710062 [3]中国石油管材研究所,西安710065

出　　处：《无损检测》2010年第11期877-879,883,共4页Nondestructive Testing

摘　　要：基于管材焊缝超声一次波检测中缺陷的定位公式,分析了由探头K值和工件尺寸变化产生的定位误差,指出几种减小定位误差的修正方法;并对数字型仪器缺陷定位的原理及在实际检测中注意的问题进行了讨论。Based on the defect location formula of ultrasonic primary wave testing of weld on pipe,the location error caused by K value of angle probe or size of work piece were analyzed,and several correction methods were put forward.The principle of defect location by digital instrument and attention in actual testing were discussed as well.

关 键 词：管材焊缝 超声检测 缺陷定位 

分 类 号：TG115.28[金属学及工艺—物理冶金]