管材桁架中的腹杆与弦杆在相交节点进行对接式焊接时,腹杆端头必须加工成相贯线端头。为了满足焊接工艺要求,腹杆端头相贯线上各点有时还要加工成不同角度的焊接坡口,这种类型的腹杆端头称为变坡口角相贯线端头。采用数控氧-乙炔火焰切割机,可以较好地解决这类变坡口角相贯线端头的加工问题。 When the webs and chords in the pipe truss are butt-welded at the intersections, the web ends must be machined to the ends of the intersecting lines. In order to meet the requirements of the welding process, the webs are sometimes machined into welding bevels of different angles on the intersecting lines of the web ends. The web ends of this type are referred to as the ends of the intersecting lines of the changing bevels. The use of numerical control oxygen - acetylene flame cutting machine, you can better solve the intersection of such a variable angle intersection line processing problems.