260 likes | 442 Views
Norsk Induksjonsrørbøying AS. Induction Bending. Factors :. Bending Machine :. Air-ring Inductor Quench ring. PB450-18”. Induction Bending Machine. PB400-16”. Induction Bending Machine. Profiles :. Pipe dimensions from 16 mm to 457,2 mm ( 18”).
E N D
Bending Machine: Air-ring Inductor Quench ring
PB450-18” Induction Bending Machine
PB400-16” Induction Bending Machine
Profiles: Pipe dimensions from 16 mm to 457,2 mm (18”) All materials that can conduct electricityare bendable, almost regardless of the profile shape! • Induction bending gives you great freedom of choice: • Bending radius:Step-less from 60 mm to 22.000 mm • Bending angle: 0 to 300 degrees • Profile dimensions: max. 300 X 600 mm (width x height).
Ω – Spool reduced with 8 welds and better flow
Examples Of cost reducing designs Ex. 1. Traditional method, with welded standard pipes. 6 welded joints Ex. 2. Induction bends, with long straight ends. 1 welded joint Ex. 3. Induction spool. 0 welding Ex. 4. Induction bends, with long straight ends. 2 welded joints
Bending Temperature/temperature tolerance Material Grade Carbon material (870º – 930º) Duplex / Super Duplex (1050º – 1120º) Mother pipe material certificates Wall thickness Induction coil
Motherpipe Material Properties Carbon steel / Stainless steel Seamless / longitudinal welded Weld cap (G48) Segregation / Intermetallic phases in the middle of the plate thickness
Post Bend Heat Treatment (PBHT) Heating of steel Capacity: 3,5 tons Temperature 580°C to 1150°C
Carbon steel - Tempering (SML 360 / 415) - Quenching and Tempering (SML 415 / 450) - Normalizing (SML 360)
Duplex / Superduplex - Wall thickness - Pipe manufacturer - Seamless / Seamwelded - Bending radius
PBHT – Increasing Cost - PBHT - PBHT Batch test - Blasting / Pickling - Single bends = more welds
How do we ensure the quality of the bends? Specifications: NORSOK M-630, DNV OS-F101, ISO 15590-1, TR 2000 TR 1969 TR 1120 And a lot of other specifications
Mechanical Testing Qualification Test Production Test Batch Test
Contact Info: Norsk Induksjonsrørbøying AS - NIRASBøIndustriområde 2 3802 Bø i Telemark niras@online.no Tlf: (+47) 35 06 13 10 Faks: (+47) 35 06 13 11