1 Technical performance

1.1  coil thickness: 4-8mm

Coil width: 510-850mm

Material: API X60

Coil ID: Φ500-Φ550mm

Coil OD: Φ1800mm (max.)

Coil weight: max. 10 ton

1.2  product

Tube OD: Φ165-Φ235mm

Wall thickness: 4-8mm

Tube length: 6-50mm

1.3  Production mode

Forming method: roller pair forming method

Welding method: High Frequency welding

1.4  forming speed: 10-30m/min

2. Process flow of unit

  Uncoiler-- coil opener and straightener--shear welder-- spiral horizontal accumulator—forming—welding--cooling—sizing—cut to length

3. Introduction to main equipment

3.1 Uncoiler

   Technical parameter

 Coil width: 510-850mm

Coil thickness: 4-8mm

Material: API X60

Coil OD: Φ1800mm (Max.)

Coil ID: Φ500-Φ550mm

Coil weight: max. 10 ton

Double cone head hydraulic alignment, coil car and coil preparation are adopted. The coil car is lifted hydraulically, and the cone head is driven by the motor and reducer to uncoil actively.

3.2 coil opener

The hydraulic swinging blade head is adopted, and the upper pressure roller is used for active uncoiling

3.3 pinch leveler

   Technical parameter

   Coil thickness: 4-8mm

   Coil width: 510-850mm

   Material: API X60

   Leveling roll ( upper 2, lower 3) drives, hydraulic press down

3.4 shear welder

   Technical parameter

   Coil thickness: 4-10mm

   Coil width: 510-850mm

   Material: API X60

The hydraulic upper shear shears the coil head and coil tail, and is equipped with a collecting groove for the coil head and coil tail. The shear welder butt joint coil head and coil tail, hydraulic lifting butt welding table.

3.5 pinch machine

  Technical parameter

  Coil thickness: 4-8mm

Coil width: 510-850mm

Motor: DC 90KW

3.6 spiral horizontal accumulator

   Coil thickness: 4-8mm

   Coil width: 510-850mm

Material: API X60

Motor power: DC 90KW

Capacity: 300-400m

Speed: 20-100 m/min (adjustable)

3.7 pinch machine

   Motor power: DC75KW

Coil width: 510-850mm

Coil thickness: 4-8mm

3.8 forming machine

  Tube OD: Φ165-Φ235mm

  Wall thickness: 4-8mm

  Material: API X60

  Roll forming method

  Rough forming: 7 horizontal roll, motor power: DC 132KW, 8 vertical roll

  Fine forming: 3 stands 4 roll forming, motor power: DC 132KW

3.9 welding device

   Tube OD: Φ165-Φ235mm

   Coil thickness: 4-8mm

   Welding method: high frequency welding

   Welding speed: 10-30m/min

   5-roll pressing welding device, the mechanism is reasonably set, easy to adjust and disassemble

3.10 External burr removal device

3.10.1 Two sets of scraper bases outside the weld bead, with chip breaking roll

3.10.2 One set of grinding roll base

3.11 sizing machine

4 roll sizing, 4 stands, motor power: DC 160KW, vertical roll 1 set

3.12 Turk Head

3.12.1 Consists of 2 Turk head stands

3.12.2 Each straightening head is equipped with 4 passive rollers, which can be adjusted manually

3.12.3 The straightening head can rotate, translate and lift as a whole

3.13 flying saw

   Tube OD: Φ165-Φ235mm

Wall thickness: 4-10mm

Material: X60

Swing arm type, circular sawing type

3.14 hydraulic system

The system pressure meets the operating requirements, and high-quality hydraulic components are selected

3.15 electric control system

3.15.1 PLC control

3.15.2 The DC motor adopts the full digital speed regulation system, and the governor adopts the products of Siemens or EUROTHERM

3.16 scope of supply