相控阵技术在爆炸焊接钛/钢复合板检测中的应用

Application of Phased Array Technology in Detection of Explosive Welded Titanium/Steel Clad Plate

摘要:

国内某化工项目使用爆炸焊接钛/钢复合板,除了对结合性能有高于标准要求的指标外,对界面结合的均匀性也提出要求。目前,对界面结合均匀性的判定采用常规的超声脉冲回波法难以实现,采用常规超声C扫检测速度较慢,无法满足大批量的生产进度要求。国内首次将相控阵技术应用到爆炸焊接层状金属复合板产品检测和验收中。相控阵检测通过电子扫查技术,大大提升了检测效率,同时结合C扫描像,使得爆炸焊接钛/钢复合板界面波纹的辨别与判定分析变得清晰直观,并与结合性能有一定的对应关系。

Abstract:

The explosive welded titanium/steel clad plate is used in a chemical project in China. In addition to the bonding performance higher than the standard requirements,the uniformity of interface bonding is also required. At present,the common ultrasonic pulse echo method is difficult to determine the uniformity of interface bonding,and the conventional ultrasonic C-scan detection speed is slow,which can not meet the requirements of mass production schedule. The phased array technology is applied to the detection and acceptance of explosive welded laminated metal clad plate products in China. Phased array detection greatly improves the detection efficiency through electronic scanning. At the same time,combined with the C-scan image,it makes the identification and judgment analysis of interface wave of explosive welded titanium/steel clad plate clear and intuitive,and has a certain corresponding relationship with the bonding performance.