Ultrasonic testing is an important flaw detection technology of oil and gas pipeline girth welds.
超声检测是油气管道环焊缝缺陷检测的一项重要技术。
The successful application of this system in Dongliangang offshore pipeline project has proved that the system can improve the inspecting speed and accuracy to the girth welds of submarine pipeline.
东联港海底管道项目应用结果表明，该系统可提高海底管道焊缝质量的检验速度和检验精度。
The paper presents the life evaluating process of girth butt welds by hot spot stress method and the calculation methods of hot spot stress range.
给出了采用热点应力法进行铸钢节点环形对接焊缝疲劳寿命估算的全过程。
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