小直径超薄壁管纵缝焊接的主要问题是烧穿，解决这个问题的关键是严格控制焊接接头的装配质量及焊接工艺。
Burn through is the main problem of longitudinal seam welding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
高压锅炉锅筒纵缝焊接时，采用的焊接设备为电渣焊。在不具备电渣焊的情况下用改进的埋弧自动焊成功的替代了电渣焊。
The welding of high pressure boiler longitudinal weld shall be electric slag welding which may be replaced by improved auto-submerged arc welding when have no electric slag welding.
介绍了超薄壁，大直径，长筒体，纵、环缝自动焊接系统的结构、组成、工作原理及设计的主要特点。
The structure, constitute, working principle, and design feature of automatic welding system which pro- duces extra- thin, large diameter, long tube, and longitudinally or circle weld are introduced.
在此基础上，研制成了一种5自由度的全位置焊接机器人，能对球罐内外纵缝、横缝及仰缝进行无导轨全自动焊接，达到了高效率、高质量、无人实时操作和低劳动强度。
Based on the above research work, an all-position welding robot with 5 degrees of freedom is developed to improve the automatic welding efficiency and quality of spherical tanks.
本公司还可为用户设计，生产各类纵缝自动焊机，环缝自动焊机等专用焊接设备。
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.
本公司还可为用户设计，生产各类纵缝自动焊机，环缝自动焊机等专用焊接设备。
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.
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