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1·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。

2·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。

3·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。

4·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。

5·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。

6·Size is expected to start from the calculation, cutting, straight seam welding, the whole round, press-fit, girth welding, leak detection, have a certain degree of technical difficulty.

从下料展开尺寸的计算、裁剪、直缝焊接、整圆、压装、环缝焊接、检漏等都有一定的技术难度。

7·Proved by experiment, the welding robot can adapt the desire of pipeline girth-welding with complex landform.

实验表明这种焊接机器人可以适应复杂地形处油气管道的全位置环形焊接。

8·Proved by experiment, the measurement and control system runs well, and can adapt the desire of pipeline girth-welding with complex landform.

实验表明该，该测控系统运行稳定可靠，可以适应复杂地形处油气管道的全位置环形焊接。

9·The high Precision welding bench with speed display and control of girth lap behavior are described.

本文介绍一种具有速度显示，环缝搭接量精密控制的高精度焊接工作台。

10·The results of the experiments show that the quality of the welding seam between the flange girth of steel beam and the seal plate is very important to the function of the joint;

试验结果表明，钢梁翼缘与封口板之间连接焊缝的焊接质量对节点性能至关重要；