HGQ 76High-Frequency Welded Pipe Production Line
Ι .Machine General Introduction
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it is designed to produce welded steel pipes ,include round pipe , squre pipe and deformed pipe.
Adopting roll pass design, the production line can manufacture welded steel pipes with good quality machining and high precision assembling.
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Round pipe:φ16-76mm
Thickness:0.7-2.5mm
Square pipe :20X20-60X60
Thickness:0.7-2.0mm
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II.Main Parameters and Specifications:
| (1)Material Specifications: |
| Standard |
SPHC,SPHT-2,SS 400,SS440,SS490 |
| Material |
Low carbon steel and low alloy constructional steel |
| Mechanical properties |
σb≤520Mpa,σs≤365MPa |
| Strip Width |
47-240mm |
| Strip Thickness: |
0.7-2.5mm |
| Inner Diameter of Coils |
Φ508mm |
| Outer Diameter of Coils |
Φ1300～φ1760mm |
| Coil Weight |
≤3.5T |
| (2)Pipe Specification |
| Pipe Diameter |
Round pipe:φ16-76mm Square pipe :20X20-60X60
Thickness:0.7-2.5mm 0.7-2.0mm
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| Length |
6m |
| Pipe-cutting Precision |
0-6mm |
| Forming Speed |
Max 80m/min (max size and thickness cannot up to max speed) |
| (3)The buyer should self-supply |
| Work shop |
60x6m, H＞5m(crane to ground) |
| Power |
Approx.450KW 380V/50Hz/3phases |
| Circulation Cooling Water(whole system) |
Flow:20T/h～30 T/h
Pool Volume:30m3
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Compressed Air
(whole system)
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Flow:5m3/min
Pressure: 5-7kg/ cm2
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| Cable |
All cable outside of my machine, you buy after machine fix location. |
III. Each Machine Parameters and Specifications:
(1) Uncoiler
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Double expansion and cantilever mandrels
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1. double expansion and cantilever mandrels.
2. Contains two main parts: main body and the fixed base.
3. Equipped with pneumatic system to satisfy the needs of expanding, contracting and braking of the mandrels.
4. Mandrel consists of four-bar linkages that could move radially at the same time.
5.The four-bar linkages in two groups are fitted on two shafts respectively. Powered by air cylinder, they expand and contract radially.
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| OD of coil |
Φ1300-1760mm |
| ID of coil |
Φ508mm |
| Width of strip |
47-240mm |
| Thickness of strip |
0.7-2.5mm |
| Weight of strip |
Max3.5T |
| Expansion Type |
hydraulic |
| Break |
Pneumatic driving |
| Rotate |
manual |
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(2)Automatic Shear And Welder
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Automatis shear and welder
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It is used to cut the irregular ends of the strips and then connect the strips by welding. So it can let the line runing without stop when the before coil finish
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| Strip width |
47-240mm |
| Welding thickness |
0.7-2.5mm |
| Cutting Type |
Automatic shear |
| Welding Mode |
Automatic weld |
| Pneumatic pressure |
0.5MPa |
| Working Cycle |
Max.300 seconds |
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(3)Spiral accumulator
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- This unit is main include in press& carry material device, accumulator assemble, carry off material unit, electric control unit.
- It is main include frame, electric motor, brake unit, circling direction transfer power axle of the reduce velocity, press & carry roll, pressure air system of guide roll, inspected velocity unit; it can supply the strip steel to accumulator and the mean times it will transfer the carry velocity information to electric control system, when we demand stop carry the material to this unit, it will stop roll to the electric motor and press& carry material roll by the break, and also could adjust the velocity to carry electric motor and the unit carry material velocity.
- Accumulator frame assemble: include the electric motor, frame , inner circle roll, out circle roll and pressure roll. It can be used to storage the strip steel material from press& carry unit and it could be draw from the center send-off material roll.
- Send-off material device: include frame, guide direction rolls, guide out roll of high or lower place. It can carry the strip steel to shape system and send the carry out material velocity information to electric control device
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| working style: |
change circle |
carry material going velocity |
Vmax=240m/min |
| advantage: |
More material
No strike
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Pinch form |
Pneumatic
6Mpa
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| steel coil thickness |
0.7-2.5mm |
diameter |
4.2m |
| width |
47-240mm |
storage area |
3.5 m2 |
| electric motor power of the press & carry |
AC 11KW |
| the electric motor of the accumulator frame |
AC 22KW |
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(4)Forming And Sizing Machine
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| Forming & Sizing Mill adopts roller type forming principle and high-frequency induction welding. The strip is fed into the forming machine by the feeding device in the mill and the forming roller continuously rotate and press the strip into the required shape. Due to the skin and the kindred effect, the high-frequency current is concentrated on the weld joint that is heated rapidly and reaches the welding temperature. The tube seam is welded under the pressure of squeeze rollers. The finished welded tube with required size can obtained after the cooling, sizing and primary straightening. |
| Forming Pipe OD. |
Round pipe:φ16-76mm
Thickness:0.7-2.5mm
Square pipe :20X20-60X60
Thickness:0.7-2.0mm
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| Forming speed |
30-80m/min |
| Number. of forming stands, horizontal |
7 |
| Number. of forming stands, vertical |
9 |
| No. of sizing stands, horizontal |
5 |
| Number. of sizing stands, vertical |
5 |
| Turks Head |
2sets |
| Shaft dia. and material of horizontal roll stand |
Φ70mm, Material 40Cr |
| Shaft dia. and Material of vertical roll stand |
Φ40mm, Material 40Cr |
| Bur Scraping Cutter |
2 Sets |
| Main motor |
160kw |
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(5) Computor cutting saw
Cutting Saw machine is used to precisely cut the pipe to length automatically under the condition that the pipe continuously delivered from the mill at high speed.
| Diameter of pipe |
Round pipe:16-76mm
0.7-2.5mm
Squre pipe:20x20-60x60mm
Thickness:0.7-2.0mm
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| Fixed Cutting length |
4~12m |
| Cutting Accuracy |
0～6mm |
| Saw blade cutting motor |
AC15kW |
| Carriage driving motor |
DC22kW |
| Cutting Speed |
Max120m/min |
(6)Run out table
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1.The finished pipes run along the Roll Table and to be automatically moved onto the Bench. Then simple Packing Machine packs the pipes in hexagon shape.
2.The simple packing machine contains container and pneumatically driven alignment equipment.
3. Motor of Roll Bench: 3KW
4. Two direction down load pipe
5. With frequency converter to control running speed.
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(7)Roller
(8)200 Kw Hifrequency welder
- All in one model
- Paralleling type
⑴ Rated output power: 200kW
⑵ Rated DC voltage: UdN=235V
⑶ Rated DC current: 1000A
⑷ Out frequency: f=350-420kHz
⑸ Total efficiency: η≈90%
⑹ Resonance form: Compound resonance
⑺ Tank output form: No welding transformer output.
⑻ Ripple Coefficient: 0.5%
⑼ Welding mode: Induction welding
⑽ Power distribution capacity: 260kVA
⑾ Input voltage: Three phase 380V/50Hz,3 phase 4 wire system
⑿ Rated input current: I=379A
1.2 Cooling System of Soft Water (Air-Water Cooling System)
⑴ Working water pressure: 0.32Mpa
⑵ Cooling water flow: 25m3
⑶ Reference cooling capacity: 60kW
⑷ Standard configuration (mm):2200×1250×2100
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