Φ219-630mm Frontal-swinging Spiral Welded PipeLine
1. Forward:
This unit is the forming andsizing unit designed and manufactured by our institute after research andabsorption of advanced technology at home and abroad. Which can produce pipecontinously with high efficiency, stable performance by advanced design.
2.Products introduction:
2.1 Products (pipe) parameter
Pipe diameter | Φ219-Φ630 mm |
Pipe wall thickness | 6-10 mm |
Pipe length | 8-12 m |
Spiral angle | 40°-80° |
2.2Raw material parameter (coil)
Coil outer dia | Φ900-1400 mm |
Coil inner dia. | Φ508-760 mm |
Coil width | 450～850 mm |
Coil thickness | 6-10 mm |
Coil material | Q235-A;Q345 |
Max. coil weight | 11 t |
2.3 Mill Parameter
Mill form | frontal swinging type, centering positioning. |
Delivering speed | 0.6-2.5m/min |
Forming style | three-roller bending forming, external control roller sizing. |
Welding style | double-wire submerged welding |
|
Welding speed | 0.8-2.1m/min |
|
Internal welder | DC-1500 |
|
External welder | DC-1500 |
|
2.4 Power parameter
Voltage | 220/415 V 50Hz |
Water |
|
Compressed air | 0.4-0.6 Mpa |
3.Technical Process
uncoiler—pinching&levelling— centering — shearing & buttwelding—centering—rotary shearing—centering—delivering—prebending&guide board—forming —internal&external welding —cutting off—collecting
4. Devices list and price
4.1 Main machine
N/N | Equipment name | QTY | Remark |
1 | Uncoiler | 1 |
|
2 | Pinching&leveling machine | 1 |
|
3 | Manual vertical roller | 2 |
|
4 | Electrical vertical roller | 1 |
|
5 | Butt-welding& cutting machine | 1 |
|
6 | Rotary shearing device | 1 |
|
7 | Delivering machine | 1 |
|
8 | Prebending&guide baord | 1 |
|
9 | Forming machine | 1 |
|
10 | Internal welding machine | 1 |
|
11 | External welding machine | 1 |
|
12 | Frontal axle | 1 |
|
13 | Rear axle | 1 |
|
14 | Fly cutting car | 1 |
|
15 | Hydraulic system | 1 |
|
16 | Hydraulic tubing | 1 |
|
17 | Electric control machine | 1 |
|
18 | Buried parts | 1 |
|
Total price： |
4.2 Purchased devices list
N/N | Equipments | Qty | Price(REF.) | Remark |
1 | Internal welder DC-1500 | 1 |
| American Lincoln |
2 | External welder DC-1500 | 1 |
| American Lincoln |
3 | Plasma cutter | 2 |
| Domestic |
4 | Flux supplying&recycling device | 1 |
| Domestic |
5 | Flux disposing device | 1 |
| Domestic |
6 | Air compressor | 1 |
| Domestic |
7 | Cable(without plant-cables) | 1set |
| Domestic |
Total： |
5.Equipments instruction
5.1Uncoiler
Structure：beconsisted of rack, scraping head and carrier roller etc.
Driving roll diameter: Ф220，material quality 42Cr, surface hardening ,HB220-260
Heattreatment quenching: HRC45-50
Drivingmotor:3KW
Function:to open the coil.
5.2 Pinching&leveling Machine
Structure:two pinching roller, five levelling roller, feed the steel by the planetarycycloidal reducer.
Diameter of pinching roll: Ф180，effective work length: 1150mm, material quality 42CrMo，surface hardening,HRC52-58
Diameter of leveling roll: Ф160，effective work length: 1150mm, material quality 42CrMo，surface hardening, HRC52-58
Reducer: 11kw
Pinching&pressing cylinder: 150x85\140
Function: leadthe strip head into the uncoiler,and level the strip.
5.3 Shearing&Buttwelding Device
Structure:Composed of butt-welding stand, and frontal&back pressing plate.
Function: to cutplate end&tail by plasma, then align and butt-weld them.
5.4 vertical roller Electric
Structure: composed of transmission device,vertical roll device and the pedestal, regulated by screwguide.
Function:Electrically align the strip and bidirection adjust, is used to regulatecenterization and profile-guide strip
5.5 rotary shearing
Structure:consists of two arches ,which put theshear blades on the arches to cut passively.
Bladediameter :320mm,material:6CrW2Si.
Heatingtreatment and quenching hardness : HRC54-58.
Function:to shear the flash away from two sides,and gaps adjustment from top to bottomby screws ,from left to right by turbo rod.
5.6 delivering machine
Structure:be made up of the body machine,shafts-combination apparatus and cycloidreducer.
Function:to drive the unit of spiral welding pipe for transmitting material to next.
Adjustion:AC HF speed-regulating
Deliveringspeed :0.6-2.5m/min
Deliveringroll diameter :250mm,material42CrMo,heating treatment and quenching hardness HRC52-58.
Electricitypower : 11kw.
5.7 pre-bending guides
Structure: involves vertical stands and guides for up and down.
Prebendingroll material :42CrMo,heating treatment and quenching hardness HRC52-58.
Function: to deliver the steel strips to the forming machine.
5.8 forming machine
Structure:Consist of pedestal, revovling axle, vertical roller, tensile device, 1# ,2#,3# forming roller and 4# ,5# ,6# ,7#，8#external control roller.
Function: Key equipment of the pipe line, used to force the strip bending into tubewaitingforwelding
5.9 front axle
Structure:it is made of section and steels.
Axleswinging cylinder : φ100/70×500
Function: all units’seats before forming and can revise forming angles.
5.10 rear axle
Function:Carrier of pipe carrying&output device and flying saw car.
Swingcylinder : φ100/50×310
Outputcylinder : φ110/80×400
Structure:bridge body, output carrierroll, supporting wheel, plate turnover mechanism, roller wheel device andfine-tuning device.
5.11 buried parts of main unit
Involve:supporting boards ,tracks and screw bolts.
Function: tracks for main equipment.
5.12 flying-saw
Function: the carrier for cutting certain steel pipe.
Cuttingway : plasma cutting
Plasmacutter model : LGK160;46kw.
5.13 internal and external welding device
Function: the carrier of lincolnwelding head and to adjust the place of welding head.
5.14 host hydraulic system
Hydraulicpump station is used to supply pressure medium, of which direction, pressureand flow is controlable, to each action element (like hydraulic cylinder,motor, etc), and achieve setted action and work cycle.
·arrangementof hydraulic pump group.
5.15 host electric system
Function: to control stand alone single-action and single linkage equipments.
