1. ERW HIGH FREQUENCY WELDING 2. ISO9001:2000 3. TENENG BRAND 4. HIGH PRECISION FORMING PASS
HG168 is used to produce round pipe 2 inch - 6 inch and square tube 50x50mm - 130x130mm.
I. Summary
The mill is intended for manufacturing of round pipe of Diameter 60mm-Diameter 165mm with thickness of 2.0mm–6.0mm 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--
Cage Loop --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: Diameter 60 –Diameter 165mm
Pipe Thickness: 2.0 – 6.0mm
2. Square & Rectangle Pipe: 50X50mm –130X130mm
Pipe Thickness: 2.0 – 5.0mm
3. Pipe Length: 6.0m – 12.0m
4. Length Tolerance: 0-6mm
b) SteelTape Specification
1. Material: Carbon steel (δb≤500Mpa, δs≤235Mpa)
2. Steel Tape: Inner diameter: Diameter 600-Diameter 760mm
Outer diameter: Max.Diameter 1800mm
Strip steel width: 200mm-520mm
Strip steel thickness: 2.0mm-6.0mm
The maximum weight: 6.0 tons
c) Electric installed capacity: appro. 800KW
d) Size of the whole line: appro. 90X7.0m
e) Line Speed: 20-60m/min
Forming & sizing section
5.1 Forming mill gearbox, universal joint
5.1.1 Mill entry flattener by up-horizontal roll and below-horizontal roll, one positive five-roll flattener, one pair of feeding vertical roll.
5.1.2 Forming mill consists of:
- Driven stand: 7 sets (Horizontal)
- Driven stand shaft: Diameter 120mm
- Material of shaft: 40Cr
- Side roll stand: 8 sets(Vertical)
- Side roll stand shaft: Diameter 75mm
- Material of shaft: 40Cr
- Gear box & universal joint: 7sets
- Material of gear box: cast steel
- Material of gear: 20CrMnTi
- Main motor: 110kW Model: Z4-250-11 2 sets
- Main redactor: 2 sets
- Horizontal roller frame with worm gear & shaft. adjust up and down at same time and level.
5.2 Sizing mill gear box, universal joint
5.2.1 Sizing mill consist of:
- Driven stand: 5 sets (Horizontal)
- Driven stand shaft: Diameter 120mm
- Material of shaft: 40Cr
- Side roll stand: 5 sets (Vertical)
- Side roll stand shaft: Diameter 75mm
- Material of shaft: 40Cr
- Gear box & universal joint: 5 sets
- Material of gear box: cast steel
- Material of gear: 20CrMnTi
- Main motor: 160kW Model: Z4-250-42 1 set
- Main redactor: 1 set
- 2 sets single head Turkshead, with 4 rollers*2sets
- One speed testing roller with air cylinder for CNC flying saw
- Horizontal roller frame with worm gear & shaft. adjust up and down at same time and level.
6. Welding section
6.1 Welding section consist of:
- Seam guide unit: 1 set
- Squeeze stand: 4 rollers(Diameter 100mm)
- De-burr frame: 1 set (2 heads)
- Horizontal unit for seam ironing: 2 rollers
Character of solid state induction system:
a) Nominal power: 500kW
b) Rated DC power: Pd=600kW
TIENENG HG168 ERW High Frequency (HF) Straight Seam Welded Steel Tube and Pipe Cold Forming Machine Production Line for sale
