单面焊对接环焊缝中由错边引起的根部超声回波特征

详细信息

Ultrasonic root echo characteristics for single side welding butt offset weld

摘要: 海洋石油平台在建造过程中会使用大量杆弦拉筋和隔水套管等杆件。此种结构中所涉及的环焊缝往往要求进行100%的超声检测，以确定焊缝中有无缺陷。由于焊缝具有容许不圆度和容许错边较大的特点，焊缝根部的超声回波十分复杂。对单面焊卷管对接焊缝中由错边引起的根部超声回波类型进行了分析。
- 海洋石油平台 /
- 超声波根部回波 /
- 单面焊对接环焊缝 /
- 错边
Abstract: During the construction of offshore oil platform, a great quantity of braces and risers will be used. The girth welds involved in this kind of structure often require 100% ultrasonic inspection to determine whether there are defects in the weld. Due to the large allowance of roundness and misalignment, the ultrasonic echo forming in the root of weld is very complex. In this paper, the root ultrasonic echo caused by misalignment of butt girth weld of single side welded pipe is analyzed.
- offshore oil platform /
- ultrasonic root echo /
- single side welding butt weld /
- offset

[1]	郑晖, 林树青.超声检测[M].北京:中国劳动社会保障出版社,2008.