环缝焊接
Two different welding processes were used in the girth welding of the domestic X70pipeline steel.
本研究采用不同的焊接工艺对X70 管线钢管进行环缝焊接。
Owing to the small diameters of conduit pipes and bracing tubes, the girth welding has to be done with one side welding both sides formation technology.
海洋平台构件中的导管、撑管，因管径小，其环焊缝只能采用单面焊双面成型焊接工艺。
The invention is used for automatic air gouging back gouging of the straight welding line and the girth welding line of the large cylindrical welding structure.
本发明用于大型圆筒形焊接结构的直焊缝和环行焊缝自动气刨清根。
The difficulties and resolve methods concern with SA-335P91 made header fabrication process are introduced herein such as header ruling, girth welding, nozzle and accessories.
针对高温强度较高的SA - 335P91材料在产品中的应用，尤其是在集箱制造工艺上的情况进行了简介。
Pipeline all - position automatic welder is kind of special automatic machine for pipeline girth welding. It has high degree of automatization, and can be used in severe conditions.
PAW2000管道全位置自动焊机是管道环缝焊接的专用自动设备，自动化程度高，运行条件恶劣。
girth welding（环向焊接）是管道工程中沿圆周方向连接两段管道的焊接工艺，属于管道安装的核心技术之一。其名称中的“girth”指环形或周向形态，“welding”即焊接，组合后特指在圆柱形工件（如管道、储罐）的圆周方向进行的对接焊。
该工艺需严格遵循以下要求：
国际焊接学会（IIW）及美国焊接协会（AWS）均将环向焊接列为管道安全的核心技术，相关规范可参考《焊接与连接工程手册》（Welding and Joining Engineering）。
“Girth welding”是焊接领域的技术术语，其含义和用法可综合解释如下：
如需进一步了解具体焊接参数或标准，可参考行业规范（如ASME标准）或专业焊接手册。
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