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Issue:
The Impact of Weld Reinforcement on Ultrasonic Testing
Author(s):
XU Sheng-Dong1
,
DAI Jing-Dong2
,
ZHANG Peng-Lin2
Pages:
649
-
650,654
Year:
2010
Issue:
8
Journal:
Nondestructive Testing
Keyword:
焊缝余高
;
波型转换
;
干扰波
;
变角回波
;
Abstract:
超声探伤中,不同形态的焊缝余高产生的干扰波是常见的干扰信号。焊缝探伤的变角回波以及余高干扰波,无论斜探头角度多大,都有可能存在,遇到此类按常规方法定位于熔合线附近或母材内的回波,须认真地观察焊缝外形、更换探头角度、双面双侧检测、精确定位分析、必要时打磨焊缝等,以避免造成误判。
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