II. The technical flow of the production line
{SteelTape}→→ Double-head un-coiler→→Five-roll Flattener →→Strip-head Cutter and welder→→Horizontal spiral accumulater →→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. Round Pipe diameter: Φ50.8mm-Φ152.4mm
2. Pipe Thickness: 3.6 – 6.0mm
3. Pipe Length: 6.0m – 12.0m
4. Length Tolerance: 0-6mm
b) SteelTape Specification
1. Material: API 5L:A, B, X42, X46 (δb≤758Mpa, δs≤524Mpa)
2. Steel Tape: Inner diameter:
Φ600-800mm
Outer diameter: Φmax=1800mm
Strip steel width: 160mm-480mm
Strip steel thickness: 3.6mm-6.0mm
The maximum weight: 6.0 tons
c) Electric installed capacity: appro. 850KW
d) Size of the whole line: appro. 90X10m
e) Line Speed: 10-50m/min