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Spiral Welded Pipe Line |
Spiral Welded Pipe Production Line
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Introduction
 We can provide customers with whole set of spiral welded pipe production line including steel strip preparation, forming welding and steel pipe finishing equipment.
We can also undertake turn-key project.
Diameters of welded pipes vary from 219mm to 2020mm. Designing and manufacturing can be carried out according to relevant standards requested by the customers for piling pipe, construction pipe, low pressure fluid delivering pipe and petroleum and nature gas delivering pipe.
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Process Flow
Inlet-swiveled Discontinuous Production
Receiving Coil -> Uncoiling -> Leveling the End of Strip -> Cross Cutting & Butt Welding -> Leveling -> Rotary Trimming Shears with Scrap Choppers -> Edge Chamfer -> Main Drive -> Strip Guide & Prebending -> Forming -> Inside & Outside Welding -> Ultrasonic Inspection -> Pipe Cutting-off -> Pipe Running Out -> Finishing Section
Outlet-swiveled Continuous Production
Receiving Coil -> Uncoiling -> Leveling the End of Strip -> Cross Cutting & Butt Welding -> Pinch Rolling -> Loop -> Forming -> Inside & Outside Welding -> continuous Ultrasonic Inspection -> Pipe Cutting-off -> Transfer Pipe Car -> Pipe Running Out -> Finishing Section
Finishing Section
Inside Welding Flux Cleaner -> Ultrasonic Inspection (Repairing & Rewelding) -> Pipe End X-ray (Repairing & Rewelding) -> Pipe End Griding -> Hydrostatic Testing -> Facing & Beveling -> Coating -> Air Drying -> Product Inspecting -> Collecting |
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Main Technical Paramenters
Model |
Dia219~529 |
Dia219~630 |
Dia250~914 |
Dia219~1420 |
Dia600~2020 |
Type |
Inlet swivelling center positioning |
Inlet swivelling right positioning |
outlet swivelling right positioning |
Inlet swivelling center positioning |
Pipe Material |
strip coil |
strip coil |
aluminum magnesium alloy (stainless steel) |
strip coil |
strip coil |
Pipe Outside Diameter(mm) |
dia219~529 |
dia219~630 |
dia250~914 |
dia219~1420 |
dia600~2020 |
Pipe Wall Thickness(mm) |
6~8 |
6~10 |
4~10 |
6~12.7 |
8~20 |
Pipe Length(m) |
8~12 |
8~12 |
4~12 |
8~12 |
8~12 |
Forming Angles(degree) |
40~70 |
40~70 |
40~70 |
40~70 |
40~70 |
Welding Speed (m/min) |
0.8~2.0 |
0.8~2.0 |
0.1~0.5 |
0.8~2.0 |
0.8~2.0 |
Welding Forms |
submerged arc welding |
plasma welding |
submerged arc welding |
Inside Welding |
DC one wire |
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DC one wire |
Outside Welding |
DC one wire |
single side welding double side forming seam |
DC one wire |
Forming Manner |
three forming rollers + outside control rollers |
Coild Diameter(mm) |
dia1500 |
dia1600 |
dia1500 |
dia2000 |
dia2000 |
Coil Width(mm) |
300~750 |
350~1050 |
457~914 |
550~1550 |
650~1600 |
Coil Weight(ton) |
max.10 |
max15 |
max.5 |
max.20(30) |
max.20(30) |
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Spiral Welded Pipe Production Line |
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Cooperated with American company BRIGHTON & HOBER and developed the first Al & Mg alloy spiral welded pipe production line in the world adopting "small-hole welding method" |
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Spiral welded pipe production line uncoiling machine |
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Spiral welded pipe production line cutting & welding machine |
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Spiral welded pipe production line main driver |
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Spiral welded pipe production line forming machine |
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