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114 -219MM HIGH FREQUENCY WELDED PIPE LINE

1. Summary
The Φ114-φ219mm ERW pipe unit is equipted with welding seam annealing device and
complete finished machines, which is mainly used to produce the Oil & gas pipes meeting
with API-5L, also could produce the water& structural pipe.

2. Main Technical Parameters

2.1 Pipe size
Round pipe outer diameter (OD) Φ114m-φ219mm
Round pipe Thickness 3mm-8mm
Pipe standard API Spec 5L
Pipe length 6-12m(±3mm)

2.2 Steel coil
Coil Material Q235，Q345
Coil ID Φ610-760mm
Coil OD Φ1200mm-φ1600mm
Coil weight Max. 10 MT

2.3 Steel strip
Width 350mm-700mm (±0.5mm)
Thickness 3mm—8 mm

2.5 plant enviroment

2.5.1 Drving power AC380V, 50Hz
Control power AC220V，50HZ

2.5.2
Total installed capacity
About 1500KW

2.5.3 Strip direction From left to right or right to left

2.5.4 Compressed air Flow rate: 0.6m3/min Pressure：4－6Kg/cm2

2.5.5 Water supply Circulation：3m3/min Pressure：3-5 Kg/cm2

2.6 Workshop

3. Equipment introduction

3.1 feeding car
Function: used to bear and store coil, automatic feeding coil to uncoiler center.
Height ≥8m (from the crane orbit to the ground)
Width 18m
Length 150m
Crane Two cranes : 5 ton, 16 ton
Configuration: is composed of coil receiver, walking machine, roller, oil cylinder, guiding
roll and so on.
Unit data:
coil receiver structure welded steel plate
trolley structure four-wheel, double-wheel driving with carrier roll
Coil O.D. φ1200～φ1600 mm
Coil width 350~700mm
Max. carrying weight 10T
“V” type carrier lifting Oil cylinder
Walking motor AC 2.2Kw

3.2 uncoiler
Function: a. Mandrel method by holding one side horizontally, uncoil shaft equipped with
winding tension control function;
b. automatic centering and feeding by use of proximity switch;
c. combining with head straightener to discharge from upper and lower ports.
Structure: single cantilever, drum expanding driven by swinging oil cylinder. AC motor drives
the steel coil to rotate, pneumatic micro-braking system transmission
Unit data:
Coil O.D. Φ1200～Φ1600 mm
Coil I.D. Φ610～Φ762mm
Coil width 350～700mm
Structure form Single-drum expanding type
Uncoiling speed ～5m/min（active）
Driving motor: AC 4 Kw 1set
Max. carrying weight 10

3.3 straight head pinching& leveling machine
Function: Pressing-arm swing. Pressing roll compact the coil, and together with uncoiler,
draw the coil head into pinching roll; pinching roll deliver the strip, level the strip end and
feed it into leveling roll;
Configuration: Is composed of pressing roll device, shovel knife, head-leveling device,
pinching roll, leveling roll, transmission device and passive protection-roll. leveling and
pinching roll with quick-open function
Unit data:
Pinching Roll double-roll style, AC motor driving, hydraulic screw down
Leveling roll five-roll type, top two below three, lower roll active,
hydraulic screw-down;
amount of pinching roll 2
amount of leveling roll 5
Roll material 42CrMo
Roll hardness HRC 52～55
Roll body length 70 mm
Leveling speed ～6/min（active）
Main motor AC 15KW VF speed regulating

3.4 shearing & butt welding machine
Usage: To cut off the head and tail of coil, align and butt welding them.
Property & data
Shearing mode hydraulic shear
Pinching roll transmission AC motor 2.2 KW VF speed regulation
Welding mode Semi-automatic CO2 air-protection welding
Pinching roll screw-down Hydraulic pressure
Welding compacting way Hydraulic pressure
Side guide centering way AC motor driving 4×1.5 KW

3.5 horizontal spiral loop
Function: storing strip of a certain length to ensure the material supply when the head and
tail of strip docking.
Structure: fixed-cycle storing, feeding from outer cycle and discharging from the inner. Is
composed of entrance deflexion section, feeding roll, loop body, exit deflexion section,
transmission device and so on. Delivering roll driven by DC motor, accumulator is driven by
AC variable frequency , delivering roll pinching driven by oil cylinder.
Property& data:
Loop style outer feeding inner discharging
Storing style fixed-cycle
Body length of frontal pinch roll 700 mm
Drawing strip speed 10～40m/min
Loop outer dia. φ8000 mm
Loop inner dia. φ4000 mm
Driving motor model of frontal
pinching roll
DC 75Kw

3.6 entry pinching& leveling motor
Usage: used to feed the strip into forming unit, and ensure the strip on the same
centerline with forming unit.
Structure form: active pinching, respectively one set vertical roll in front and back of
pinching.
Property data:
pinching roll Double-roll type, AC motor driving, hydraulic
crew-down
Pinching roll length 700 mm
Roll material 42CrMo
Pinching speed ～6m/min（active）
Pinching roll amount 2
Roll hardness HRC 52～55

3.7 forming unit
Function: Adopting roll-forming process to force strip to cold-bend into pipe blank for
welding, strip-edge pressing roll is required ahead of each full forming roll
Structure: plano casting steel stand, center positioning.
property & data
Forming mode of round pipe Roll forming
Roll- change way draw the roller out from top of roller shaft
Amount of forming stand Seven horizontal roll stands, five universal stands
Stand material ZG310-570
Transmission type DC 22KW *2 Individual transmission
Turbine worm speed reducer Manually screw-down
Dia.& material of forming roll shaft Φ120 mm 42CrMo
Structure of vertical roll group turbine lifting,, manual rotating and adjusting
Tool for roll change special wrench

3.8 welding device
Function: Is used to align seam of formed pipe blank. After HF heating, weld it by
squeezing roll, then clean inner and outer burr.
Structure: consist of double-roll type guide roll rack, four-roll type pressing roll rack.
Features: squeezing roll is arranged as top double, side double and down single. Equipped
with roll position and pressure sensor on the electric screw-down
equipment;squeezing rack is plano-type welding rack, which is of good stiffness
and is applicable to pipe of high strength production.

3.8.1 Opening guide roll
used to align the gap after forming

3.8.2 Five-roll squeezing roll
Pressing roll is arranged as top double, side double and below one; pressing
rack is plano-type welding rack, which is of good stiffness and is applicable to
pipe of high strength production

3.9 water cooling device
Usage: Is used to cooling the welded
pipe to indoor temperature to make sure steel pipe
in a stable size.
Structure: Spray in the pool type cooling
Cooling length: 7 m

3.10 sizing unit
Usage: used to process the welded pipe according to required size and shape.
Structure: the stand is plano casting type, pipe center positioning.
Property& data:
Stand form Plano casting stand
Roll change method Draw from roll shaft
Driving power DC motor 75 KW *2 sets

3.11 computer flying caw
Usage: used to cut the continuous pipe as per required length
Configuration: consist of flying saw machine body, milling car assembly, gear& rack
mechanism, motor and reducer assembly, computer control, saw blades,
cutting head, and hydraulic unit, with good safety.
property& data:
Cutted pipe size Φ114-219 mm
Thickness 3-8 mm
Sizing length 6-12m
Efficient stroke 6000mm
Sizing precision ≤ 6mm
Cutting times max：5 times /min
Applicable pipe speed: 10～40m/min

3.12 conveyor after saw
Usage: used to convey the pipe after cutting off and deliver it to the bench, to ensure the
whole process smooth
Structure: multiple mono-rolls to form roll group, active roll arrangement, equipped with
kickoff and pipe stopper;

3.13 end facing&bevelling machine
Function: face and bevel the ends, in order for doing the hydraulic testing.
Structure: consist of left&right head stock, left&right aligning roller, walking mechanism,
hydraulic system and electrical control system. One single work position.

3.14 packing machine(
Function: Pack up the accumulated products.
3.15 rolls
Materail GCr15
Hardness HRC 58-60
Hardening layer depth 8-10mm
surface roughness 0.8-1.6

3.16 hydraulic system
Configuration: consist of oil pump station, control valve station and the piping.
Working pressure double-pressure system 10MPa,16MPa
Manufacturer of hydraulic
element
Beijing Hydraulic complete company
Other equipments
adopts the design of medium&low pressure; with the
cooler at the side of hydraulic station oil tank

3.17 electric control system
Outline: It adopts the advanced PLC, digital and bus control technology, also adopts the
more advanced human-computer interface in the auto-control field, which could look at easily
the operation situation of each machines and could set & modify the running data.

Technical data:
Power supply three-phase four-wire, AC460V±10%
Three-phase unbalance rate ≤3%
Power frequency 60HZ±5%
Surrounding temperature 25 ℃±5%
Surrounding moisture ≤85% , no dew
Model and data of control system:
DC speed regulator Oulu 590
AC frequency converter Japan Mitsubishi FX serial
low voltage instrument LG
Operation element
（button, indicator light）
SHEG
4. Equipment list
4.1 Non-standard equipments
No. Description Qty. Remark
Preparation area
1 Feeding car 1 overhaul
2 Uncoiler 1 overhaul
3 pinch& leveling 1 overhaul
4 Shear& buttwelding 1 overhaul
5 Horizontal spiral loop 1 reproduce
6 Anchor bolt 1set overhaul
7 Hydraulic system 1 reproduce
8 Electric control system 1 reproduce
Host area
9 entrance pinching& leveling machine 1 overhaul
10 Forming units 1 overhaul
11 Welding device 1 overhaul
12 Air cooling device 1 overhaul
13 Water cooling device 1 overhaul
14 Sizing units 1 overhaul
15 Conveyor after sawing 1 overhaul
16 Packing machine 1
17 Anchor bolt 1set reproduce
18 Hydraulic system 1 reproduce
19 Electrical control system 1 reproduce
20 Rolls 1
Finished machines area
21 End facing&bevelling machine 1
Auxiliary equipments in finished area
22 Bracket(conveyor) 1set

4.2 purchased items
No. Description Qty. Remark
1 H.F.welder（600KW） 1 Domestic brand
2 Flying Saw 1 Domestic brand
3 CO2 protection welder and
car
2 Domestic brand

4.3 rolls list
No. Description/size Qty. Remark
1 φ114 1 Round pipe
2 φ140 1 Round pipe
3 φ165 1 Round pipe
4 φ219 1 Round pipe
6 100×100 1 Square pipe
7 125×125 1 Square pipe
8 150×150 1 Square pipe
9 170×170 1 Square pipe
10 60×125 1 Rectangular pipe
11 80×150 1 Rectangular pipe
12 125×170 1 Rectangular pipe
13 150×200 1 Rectangular pipe

5. Unit price

5.1 Machines in preparation area and host area

HOT ROLLING PLANT - HOT STRIP MILL 1700

 The hot rolling plant consist of a slab warehouse with a section for slab
cleaning, the semi-continuous belt hot strip mill 1700 and a shop for cutting
and finishing of hot rolled coils. The hot strip mill was designed to roll strips
with thickness of 1,8 -i- 12 mm, width of 600 -i- 1530 mm, internal coil diameter
850 mm and external coil diameter 1100 -i- 1900 mm from slabs with thickness
between 150 and 220 mm, width of 620 to 1550 mm, length between 7000 and
7900 mm, weight of up to 16 tons of carbon steel of various grades - plain carbon
steel, high- and low-carbon steel.

1. Annual output capacity: 2.1 million tons.
2. The plant is situated in a regulated surveyed land lot with a total area of
760793 sq.m.
3. The buildings have a total built-up area of 242 337 sq.m. and include
production, storage, administrative and service premises.
There is a railway connection between this plant and the plant from which
slabs are supplied; there is also a railway connection to the main railway line
which is used to transport finished products to clients.

Ref : 41210

IPROLAM 600 MM COLD STRIP MILLS

Type:  Cold Strip Mills
Manufacturer:  IPROLAM,
Model:  600 mm 4 Hi 
Technical Details:  • Strip thickness 0.2- 3.0 mm
• Strip width 200 - 470 mm
• Rolling speed 500 m/ min
• Rolling force 400 ton
• Working Roll :
o diameter 280 mm ( min250mm)
o active length 580mm
• Back up roll
o diameter 660mm ( min 610mm )
o active length 580 mm
• Positioning of working rolls : hydraulic
Description:  Perfect working condition; New SIEMMENS control 2004

Ref : 41211