The present invention discloses a welding pipe and has simple welding operation, high welding speed and high welding quality.

本发明公开了一种焊接用管，该管和与之相应的管一起焊接可以简化操作，提高焊接速度和焊接质量。

The welding operation could be continued only if no error detected.

只有证实没有异常情况,才可继续焊接工作.

Now relevant technologies do not yet permit a totally autonomous remote welding operation, tele- robotic welding with the help of operators have been paid more attentions.

由于目前相关技术的发展还不能满足机器人完全自主焊接的需要，有人参与的遥控焊接技术受到了重视。

Top board of buoyancy module of floating roof tank is the thinnest part in the whole tank body as well as the part which is the most liable to welding deformation in welding operation.

浮顶储罐的浮舱顶板是整个罐体中厚度最薄的部位，也是储罐焊接施工中最易产生焊接变形的部位。

Original preheating temperature: the temperature of the workpiece in the weld zone immediately prior to any welding operation.

初始预热温度是指任何焊接操作开始之前，焊接区域内工件的瞬时温度。

The welder qualification test for special equipment is consisting of basic knowledge (theory) examination and welding operation skill test.

特种设备焊工考试包括基本知识（理论）考试和焊接操作技能考试两部分。