文献类型：期刊文献

英文题名：Ultrasonic testing technique for small-calibre piping containing defects

作者：Zhen-Guo Yang[1]; Lauke, B.[1]; Singletary, J.[1]

机构：[1] Inst of Material Sci, East China Univ of Science, Shanghai 200237, China

年份：1996

卷号：68

期号：3

起止页码：325

外文期刊名：INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

收录：;EI(收录号：1996393262130);WOS:【SCI-EXPANDED(收录号:WOS:A1996UW11300013)】；

语种：英文

外文关键词：Defects - Machining - Petrochemical plants - Pressure vessels - Probes - Size determination - Steel pipe - Testing - Ultrasonics - Welds

摘要：An effective method of ultrasonic testing was developed for inspecting the quality of weld seams for small-calibre, thin-walled pipes. The basic technical problems encountered in measuring the height of defects in the piping by an ultrasonic testing method were analyzed and studied experimentally. To overcome these problems, two small probes with special cylindrical contact surfaces, and five types of piping contrast specimens were machined, and a corresponding quantitative scaling method was developed. Some preliminary data obtained by the proposed method and a practical measurement method were presented. These results show that the proposed method is also effective in determining the shape of defects in welded steel pipes, and has been directly used in the structural integrity assessment of pressure vessels and piping containing weld defects in a petrochemicals plant. Copyright (C) 1996 Elsevier Science Ltd.