介绍了在螺旋焊缝汇管上焊接支管时的防变形措施、焊接方法和检验结果。
This paper introduces the measure, welding method and inspection result to prevent the welding deformation formation of spiral-seam pipe header after tapping.
依据工程的详细状况也可以采取主管上直接焊接支管的构造，但必需校核支不锈钢管衔接处能否需求补强。
According to the specific circumstances of the project can also take charge of construction directly welded pipe, but must check a stainless steel tube joint can demand reinforcement.
并以基于PC和运动控制卡的开放式四轴数控系统实现支管端头的变角度焊接坡口面切割。
The open four-axis CNC system based on PC and motion control card can accomplish the cutting of various-angle welding plate.
在大型管结构的焊接工程中，相交双管的装配精度及支管下料高度一直未得到很好的解决。
In the welding engineering of large-scale pipe structures, the assembly precision and the branch pipe cutting curve of two intersecting pipes haven't been settled for a long time.
在大型管结构的焊接工程中，相交双管的装配精度及支管下料高度一直未得到很好的解决。
In the welding engineering of large-scale pipe structures, the assembly precision and the branch pipe cutting curve of two intersecting pipes haven't been settled for a long time.
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