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[China]
Trade Verify
Address: No.15,Shanqian Road,Economic Development Zone,Hebei,China
Contact name:Yan
Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd. |
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HG219 High-Frequency Welded Pipe Mill Line is designed to produce round pipe (Diaφ114-219mm, thickness 3-9mm). Adopting roll pass design, the production line can manufacture welded steel pipes with good quality machining and high precision assembling.
Design guideline :
● Improve operational performance and production performance;
● Improve the environment and security of the operations;
● Improve product stability;
● Improve product productivity;
● Reduce roll costs.
According to the designing guideline of improving the operating character & environment and the safety & producing character, reducing the cost of the roller to guarantee high efficiency, HG219 production line adopts the double-radius hole style of design.
Conforming to the YB189-64 standard
(1) Material: Low carbon steel and low alloy constructional steel
(2) Mechanical properties: σb≤520Mpa,σs≤340MPa
(3) Strip Width: 357～688mm
(4) Strip Thickness: 1.5～6.0mm
(5) Steel strip coil: Inner Diameter of Coils:φ508～φ610mm
Outer Diameter of Coils:φ1000～φ2000mm
(6) Coil Weight: ≤12T
(1) Pipe Size: Round: φ114～φ219mm
(2) Wall Thickness of Pipes: 3～9mm
(3) Fixed Cutting length: 8～12m
(4) Pipe-cutting Precision: ±1.5mm
(1) Power:
Power Volume of the Line Approx.1200KW
Power Source 380V/50Hz/3phases
(2) Circulation Cooling Water:
Flow: 30T/h～40 T/h
Pool Volume: 40m3
(3) Compressed Air
Flow: 5m3/min
Pressure: 5～7kg/ cm2
15m wide, 170m long, 5m high,
The coil car is used for make the steel coil from loading position to uncoiler. At the same time lift oil cylinder, so that the steel coil inner hole is accurately set on the mandrel of the uncoiler, the uncoiler tension, push back to the original position.
Load-bearing: 12.0T
Moving motor power: 2.2KW
The uncoiler is of the structure of single expansion and cantilever mandrels. It contains two main parts: main body and the fixed base. The main body is equipped with pneumatic system to satisfy the needs of expanding, contracting and braking of the mandrels.
| OD of coil | Φ1000-2000mm |
| ID of coil | Φ508-610mm |
| Thickness of strip | 3-8mm |
| Width of strip | 357-688mm |
| Weight of single strip | Max12T |
| Expansion Type | hydraulic expand |
| Break | Pneumatic driving |
This unit is main used to lead the new coil steel head feed into
the flattener unit after uncoiler unit bring the coil into the
working place.
Positive and negative two-way loading.
Processing pressure:7Mpa
Electric motor power:2.2KW
This unit is main used to flatten the head and trail of the strip steel and prepare for the next step cutting and shear welding so as to ensure the strip steel opposed flate and straight in the shear welding.
Flattener level and pressing capability:
The style of the adjust velocity:No grade of the adjust velocity
The structure style:Pressing & carry,Five roll flattener unit
Up & down style:Hydraulic system
Width of the flattener:357-688mm
Flattener thickness :3-9mm
Electric motor power:45KW
Used to cut off the irregular part of the tape head and tail, and align the tape tail of the previous coil with the tape head of the next coil, and weld them together to continuously feed the looper.
Structural form: shear welding bed, pinch feeding device, double centering device, double shearing shearing system, shearing plate system, welding bottom plate driving system, etc.
| Strip width | 357-688mm |
| Welding thickness | 3-9mm |
| Cutting Type | Hydraulic |
| Welding Mode | Automatic |
| Hydraulic pressure | 8-10MPa |
| Working Cycle | Max.600 seconds |
This machine is between shear welder and host (forming sizing mill) ,use for after a roll of strip steel are used up, before the next roll strip since prepared from uncoiling, shearing and butt welding time to ensure that the host (forming sizing mill) continuous production and store enough strip steel.
This unit is main include in press & carry material device, accumulator assemble, carry off material unit, electric control unit
specification:
| working style | change circle |
| carry material going velocity | Vmax=120m/min |
| advantage | More material, No strike |
| Pinch form | Pneumatic, 6Mpa |
| steel coil thickness | 3-9mm |
| width | 357-688mm |
| electric motor power of the press & carry | 45kw |
| the electric motor of the accumulator frame | 5.5*15kw |
The forming & sizing unit is the vital equipment to the pipe
mill line. This unit abide by the roll frame theory. It could
continue process some specification steel tube by no-contact
welding, that is carrying some strip steel to this unit and let it
passing the frame roll to frame tube raw, and then take the
electric fluid together on the tube welding surface so as to treat
the tube temperature higher to suit welding by the pressing roll
welding, and then after cooling, forming sizing and flattener to
product what is your demand tube.
| Forming Pipe OD. | Round:Φ114-219mm |
| Forming Pipe Wall Thickness | 3-9mm |
| Forming speed | Max.50m/min |
| Number. of forming stands, horizontal | 7 |
| Number. of forming stands, vertical | 9 |
| Guide Roll Stand | 1 |
| Squeeze Roll Stand | 1 |
| Grinding Roll Stand | 1 |
| Bur Scraping Cutter | 2 Sets |
| No. of sizing stands, horizontal | 5 |
| Number. of sizing stands, vertical | 5 |
| Turks Head | 2 sets with single head |
| Shaft dia. and material of horizontal roll stand | Φ150mm, Material 40Cr |
| Shaft dia. and Material of vertical roll stand | Φ80Material 40Cr |
Flying Saw
Flying saws are hot-cutting saws, which fuse pipes by high-speed heating. Using high accurate STD control system and machinery system, the quickly ability and accurate processing is this unit advantage.
cutting tube Dia:Φ114-219mm
precisely dimension :8-12m
accurate:±3mm
max cutting times:7 times /min
max working velocity :50m/min
cutting piece dimension:Φ1100×5×Φ110mm
travel machine max route:2.8m
electric motor power of the cutting :132KW
working electric motor power:45KW
Milling Saw
Cold cutting saw is an emerging online cutting technology in the welded pipe industry. The main feature is that it adopts the principle of cold milling. After cutting, the pipe end is flat and free of burrs. There is no need for secondary cutting for applications with high processing requirements.
Maximum linear speed: 50 m/min.
Cutting length range: 8 ~ 12meters
Cutting length accuracy: ±1.5mm (Line speed fluctuation does not exceed 2%)
Main controller: Siemens Simotion D435-2
Cutting type: Double saw blade, milling cut
Tracking speed: Same as tube mill (10-50m/min)
Control type: AC servo
The finished pipes run along the Transit roller and to be automatically moved onto the Bench. Then simple Packing Machine packs the pipes in hexagon shape.
Motor: 3kw x2 set
Length: 24m
Φ114～Φ219.1mm Double-station hydraulic testing machine
Technical parameter:
1. Diameter range of test steel pipe: Φ114～Φ219.1 mm
2. Length of test steel pipe: 6～12m
3. Test steel pipe material: plain carbon steel
4. The maximum test pressure of steel pipe: Max 10MPa (100bars)
5. Holding time (settable): 3～5 sec
6. Number of roots per test: 2 roots/time
7. Sealing form: outer radial seal
8. Pipe body requirements: Straightness: pipe body ≤ 2mm/m, pipe end ≤ 3mm (pipe end length 1 meter),
Full length ≤20mm; deburring of pipe ends;
10. Pressure test medium: emulsion/water (to ensure that the medium is clean and free of impurities)
11. Flushing method: low pressure centrifugal pump IS125-100-315
12. Flushing active roller table rotation: reducer XWD0.55-3-47×2
13. Low-pressure water filling method: low-pressure centrifugal pump IS150-125-315
14. Pressurization method: high pressure plunger pump 3D2-SZ-75/25
15. Main cylinder at fixed end: Bore φ280
16. The main cylinder of the mobile end: Bore φ280
17. Mobile seat motor: XWED0.75-53-289
18. Tension beam form: Double tension beam
19. Equipment installed capacity: ～130KW
20. Efficiency: 1 piece/minute
Work process:
Upper pipe → align → chain transport to the water pressure center → clamp → fixed and mobile end test head extends to seal both ends of the steel pipe → low-pressure water fills with water, exhausts → closes the water filling valve and exhaust valve → pressurizes → Protects pressure→Relieve pressure→Retract the fixed and mobile end test head→Clamp loose→Send the steel pipe out of the chain→empty water→discharge
Material: Cr12
Hardness of roller: HRC58-62
Deepness of quench hardening: ≥ 10mm
Roughness of surface: Ra≤0.8um
Output power: Pout＞800kW
Designed frequency: f=100~200KHZ
① Designed parameters
lNominal power: 800kW
lRated DC power: Pd=800kW
lRated DC voltage: UdN=450V
lRated DC current: IdN=2000A
lThe whole efficiency: η≥85%
lPout >800kw
lMOSFET inverter: 100kW×8
lTank circuit output mode: no welding transformer output, secondary resonance
