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1.1 Summary
This equipment is specially used for producingΦ32-Φ102mm, δ1.5-4.5mm high-frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe (δ≤3.5mm). The composition of equipment is from uncoiler to fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.
1.2 Applicable material
Material | Low-carbon steel, low alloy steel(δs≤345Mpa,δb≤610Mpa) |
The thickness of steel strip: | 1.5-4.5mm (As per GB708-88) |
The width of steel strip: | 100-320mm |
I.D. of steel coil: | Φ500-Φ600mm |
O.D. of steel coil: | Φ1000-Φ1500mm |
Maximum weight coil: | 5000kgs |
Hot or cold-rolled steel strip (As per GB708-88 or GB1591-88) | |
1.3 Dimension range of processing steel pipe
O.D. | Φ32-Φ102mm |
Wall thickness | 1.5-4.5mm (square pipe and special-shaped pipeδ≤3.5mm) |
Length | 4-8M |
1.4 Product (steel pipe) process flow
Raw material (steel coil) → uncoiling → shearing and end welding → material accumulating → non-power leveling →mill-forming→ high-frequency welding → removing burrs outside of weld seam → cooling → sizing → roughly straightening → fixed length cutting → finishing pipe
1.5 Milling speed: 15-50M/min
1.6High-frequency equipment power: 300 KW (Solid state)
Pipe or tube making machine ZG90