Longitudinal production process is simple, high production efficiency, low cost, rapid development. Spiral Welded Longitudinal generally higher than, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight seam pipe, weld length of 30 to 100%, and lower production rate.
General pipe used to transport low pressure fluid. With Q195A, Q215A, Q235A steel. It can also be used for other soft easy to weld steel. To make hydraulic pipe bending, flattening and other experiments, there are certain requirements for surface quality, usually delivery length of 4-10m, we are often asked to cut to length (or double length) delivery. Pipe specifications with nominal diameter representation (millimeters or inches) nominal diameter different from the actual, ordinary steel pipe and thicker steel pipe two kinds of predetermined wall thickness, steel tube end form was divided by threaded and non-threaded two kinds of table 6-17 of welded steel pipe size.
Without welding wire sets and high frequency resistance straight seam welded pipe, nor do they need to do across the grounding line repainting, eliminating the traditional welding and wire sets and other complex construction process. Just a straight pipe joint connecting tube and pipe, pipe fitting and even after the weight on the bar management junction boxes, positioning special tool to tighten (wring) to screw with the junction box at the high-frequency resistance seam welding with a lock nut tight It can set. Pipe bend with the elbow can be bent corresponding field curvature.
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