Ten-roller cold straightening machine (Taiyuan heavy industry co.,ltd)
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Equipment parameters:
Work roll pitch: 4×900mm
Work rolls: 10rolls
Work roll diameter: φ380/480mm
Working roll installation angle: 33°
Work roll angle adjustment range: 29°~37°
Work rollmaterial: High chromium cast iron
Work roll opening: 0~250mm
Maximumstraightening force of single roller: 1300KN
Straighteningspeed: 0.5~2m/s
Pipe parameters:
Outsidediameter: Φ48.3 mm~Φ180mm(Pipe end thickening194.5mm);
Steel tubewall thickness: 3.18mm~25mm;
Tube length: 6~12.5m;
Maximum bending after straightening: Overall length ≤3mm
Tubeend 1/1000mm
Ellipticity ≤0.4%D
Straightening temperature of steel pipe: ≤150℃
Straightening requirement:
Surfacequality after straightening: no dent and damage on the surface of the steelpipe (no new defects after straightening).
Straightening adjustment:
Straightening machinestraightening and straightening angle adjustment can refer to the followingtable:
Φ48 |
Φ73 |
Φ89 |
Φ127 |
Φ140 |
Φ159 |
Φ168 |
Φ180 |
30° |
31.5° |
32° |
34° |
35° |
36° |
36.5° |
37° |