[1]满开远,史京生.TOFD技术在复合板对接焊缝检测中的应用[J].焊管,2019,42(8):26-29,35.[doi:10.19291/j.cnki.1001-3938.2019.8.005]
 MAN Kaiyuan,SHI Jingsheng.Application of TOFD Technology in Cladding Steel Plate Butt Weld Inspection[J].,2019,42(8):26-29,35.[doi:10.19291/j.cnki.1001-3938.2019.8.005]
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TOFD技术在复合板对接焊缝检测中的应用()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第8期
页码:
26-29,35
栏目:
应用与开发
出版日期:
2019-08-28

文章信息/Info

Title:
Application of TOFD Technology in Cladding Steel Plate Butt Weld Inspection
文章编号:
10.19291/j.cnki.1001-3938.2019.8.005
作者:
满开远史京生
西安航天华威化工生物工程有限公司,西安 710100
Author(s):
MAN Kaiyuan SHI Jingsheng
Xi’an Huawei Chemical & Biological Engineering Co., Ltd., Xi’an  710100, China
关键词:
衍射时差法超声检测复合板过渡层
Keywords:
time of flight diffraction detection composite plate transition layer
分类号:
TG115.28
DOI:
10.19291/j.cnki.1001-3938.2019.8.005
文献标志码:
B
摘要:
复合板过渡层处缺陷一直是衍射时差法超声(TOFD)检测的难点。针对这一问题,通过对TOFD成像原理、TOFD探头参数的设定、探头中心距的选择和上下表面盲区的分析研究,并制作了大量含有人工缺陷的模拟试样加以比对,以及对大量缺陷图谱进行了分析。结果表明,采用双通道两组探头,分别聚焦2/3壁厚处与过渡层处,同时增加双面扫查与偏置扫查,可有效检出过渡层处的缺陷。
Abstract:
Defects in transition layer of composite plate are always difficult to time of flight diffraction(TOFD) detection. In order to solve this problem, the TOFD imaging principle, the setting of TOFD probe parameters, the selection of probe center distance and the analysis of the upper and lower surface blind zone were studied. A large number of simulated samples with the artificial defects were compared, and a large number of defect maps were analyzed. The results show that the defects in the transition layer can be effectively detected by using the two groups of the dual-channel probes, which focus on 2/3t and transition layer respectively, and adding the double-sided scan and offset scan at the same time.

参考文献/References:

[1] NB/T 47013.10—2015,承压设备无损检测 第10部分: 衍射时差法超声检测[S].
[2] 强天鹏. 衍射时差法(TOFD)超声检测技术[M]. 北京:新华出版社, 2009.
[3] 张志超. 焊缝超声检测中变型波的产生机理及其识别[J]. 无损检测, 2002(2): 83-85.
[4] 沈建中. 超声成像技术及其在无损检测中的应用[J]. 无损检测, 1994, 16(7): 234-238.
[5] 李衍. 承压设备UT取代RT的必要条件(续)——ASME规范案例2235-9研讨[J]. 中国特种设备安全, 2012(7): 23-26.

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备注/Memo

备注/Memo:
作者简介:满开远(1984—),男,工程师,主要从事无损检测与理化试验工作。
收稿日期:2019-01-22
更新日期/Last Update: 2019-09-29