There are several parameters which must be controlled at and near the welding station in the manufacture of round ERW tube/pipe for pressure application service. Some of these parameters are: trimmed width of the in process material entering the mill, circumferential reduction in the forming stands and welded station, size and shape of the unwelded can entering the welding station, diameter of the welded pipe after welding, power level setting and mill speed.
展开▼
