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.

Shanxi Gelande Mechannical & Electric Technology C

630 SSAW PIPE MILL