The mill is design to manufacturing of round pipe of Φ12mm-Φ32mm with thickness of 0.3mm–2.0mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.

Finished product will be of round, square or rectangular pipe.

II. The technical flow of the production line

{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 →→Flying saw under computer-control →→ Run-out table

III. Basic conditions:

a) Steel Pipe Specification

1. Pipe diameter:              Ø12–Ø32mm

Pipe Thickness:             0.3– 2.0mm

2. Square & Rectangle Pipe:    10X10mm –25X25mm

Pipe Thickness:             0.3 – 1.5mm

3. Pipe Length:                6.0m – 9.0m

4. Length Tolerance:           0-6mm

b) SteelTape Specification

1. Material:                    Carbon steel (Q195)

2. Steel Tape: Inner diameter:    Φ470-Φ510mm

Outer diameter:    Φmax=1500mm

Strip steel width:    25mm-100mm

Strip steel thickness:  0.3mm-2.0mm

The maximum weight: 1.0 tons

c) Electric installed capacity:     appro. 300KW

d) Size of the whole line:          appro. 40X5m

e) Line Speed:                    50-120m/min

I. Summary