Forming and sizing part are the main parts of ERW production line. The mills adopts various molding methods. Forming part bend the steel strip into tube blank, by contact or induction high frequency welder, the borders reach to welding temperature at moment, then finish the welding under the squeeze of squeeze rollers. After watering, sizing, straightening, etc. All kinds of pipes be produced.
Type: HG50
Diameter of Product: OD15-OD50mm
Thickness of Product: 0.7-2.75mm
Material of Steel Strip: b≤588Pn s≤380MPa low carbon steel and low alloy steel
Welding Speed: 20-80m/min
Motor Power: 150kW
High Frequency Welder: Solid State or Vacuum Tube High Frequency Welder
Process Flows: Uncoiler-Shear and Werlder-Accumulator-Forming-High Frequency Welder-Water cooling-Sizing-Computer Flying Saw-straightening-End Facer-Hydraulic Test-Package, etc.
{SteelTape}→→ Double-head un-coiler →→Strip-head Cutter and welder→→Spiral accumulator→→Forming section (Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller) + De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Cold saw under computer-control →→ Run-out table→→ Semi-auto Packing machine
| Steel Pipe Specification | |
| Round Pipe diameter | Ø12–Ø50mm |
| Pipe Thickness | 1.2– 4.0mm |
| Square and rectangle pipe | 20X20mm –60X60mm |
| Pipe Thickness | 1.2 – 3.0mm |
| Pipe Length | 6-9m |
| Length Tolerance | 0-6mm |
| Steel Tape Specification | |
| Material | Carbon steel (δb≤500Mpa, δs≤235Mpa) |
| Inner diameter | Φ470-Φ510mm |
| Outer diameter | Φmax=1900mm |
| Strip steel width | 80mm-240mm |
| Strip steel thickness | 1.2mm-4.0mm |
| The maximum weight | 3.0 tons |
| Electric installed capacity | appro.450KW |
| Line Speed | 1.5m3/h |
