Spiral Welded Pipe Mills
DescriptionThis series of welded tube mill machine is used to produce the low-pressure transporting pipe and structure pipes. The spiral welded pipe mill is equipped with a whole spiral welded pipe line and necessary finishing equipment.Material:hot roll or slitting cut steel coil
Specifications of the Welded Tube Mill Machine
|
Coil OD |
Φ1500-2000mm |
|
ID |
Φ610-760mm |
|
900-2000mm |
|
|
Thickness |
6-25.4mm |
|
Material |
Normal carbon steel,low carbon steel Max yield strength is less than 48kg/mm2480Mpa-X70 API HR Q235, Q345, X42-X70(X70≤19.1,Q235≤25.4mm) |
|
Side Curvature |
≤10mm/10m |
|
Tower |
＜30mm |
|
Max Weight |
40T |
Product Parameters:
|
Pipe Diameter |
Φ400-Φ2500mm (16inch-100inch) |
|
Thickness |
6-25.4 mm Max yield strength is less than 48kg/mm2-X70 API HR Q235, Q345, X42-X70(X70≤19.1,Q235≤25.4mm |
|
Helix angle |
45°-78° |
|
Maxpipe thread pitch |
2400mm |
|
Length |
8-12m |
|
Configuration |
One set 40T crane and the other20T crane |
|
Capacity |
~1600KW(Including the beveller,testers ,welders and so on) |
Parameters and Flow of ProcessParameters
|
Front Swiveling |
Left Helix |
|
Forming Form |
Three rollers outside controlled |
|
Positioning Form |
CenterPosition |
|
Welding Speed |
|
|
Feeding Speed |
|
|
Welding Mode |
double sides submerged arc welding |
|
Inside Welded Machine Outside Welded Machine |
(2 nozzles) I: DC-1500 ⅡAC-1200(t≥12.7mm) (2 nozzles) I: DC-1500 II: AC-1200(t≥12.7mm) |
|
Pressure Air |
Working Process of the Spiral Welded Pipe Mill:(coil car) → (uncoil) → (aligning) → (5 roll leveling) → (aligning) → (shearing and cross welding) → (aligning) → (milling) → (aligning) → milling→ (aligning) → (steel plate cleaning) → (driving) → (pre-bending) → forming → (inside welding) → (outside welding) → (cut to length) → (output distributing) → (on-line UT testing) → (welding flux disposing) → (X-ray testing) → (end-facing) → (hydro-static testing) → (collecting&storage)
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