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Spiral Welding Pipe Mill Line

This spiral welding pipe mill line is used for producing SSAW pipe through uncoiling, leveling, edge milling, forming, welding working process.

Description

Spiral welding pipe mill line


A. Overview:

This spiral welding pipe mill line is used for producing SSAW pipe through uncoiling, leveling, edge milling, forming, welding working process. The pipe can be used for structural, low-pressure fluid transporting, city water&gas pipe and so on which is in line with the SY/T5037-2012, SY/T5040-2010, GB/T9711 standard.

Feature: easy to move, modular design, stable and reliable operation.


B. Technical parameter:

Technical parameter

Coil parameter

Outside Dia.

Ф1200~Ф2200 mm

Inside Dia.

Ф720~Ф760 mm

Width

750~2000 mm

Thickness

6~20 mm

Material

Q235A、Q345B

Crescent curved

≤10/10000  mm

Max weight

30 t

Pipe parameter

Outside Dia.

Ф508~Ф1820 mm

Thickness

6~20 mm

Length

8~12  m

α

45°~81°

Max screw pitch

2300  mm

Max.weight

~11 ton

Type:

front-swing type, centralized positioning, intermittent manufacturing

Welding

Welding type

Double-faced Double-wire Automatic submerged arc welding

Welding speed

0.5~2.5m/mm

Inside welder

(DC-1500+NA3)X1

Outside welder

(DC-1500+NA3)X1 (AC-1200+NA4)X1

Feeding speed

0.5~3.0m/min

Forming type

Right-handed rotation, over-wind forming type

Kinetic parameter

Supply voltage

380V±10%

Hz

50Hz±1%

Control voltage

220 VAC / 24 VDC

Tap water

0.2~0.4      Mpa

Compressed air

0.4~0.6      Mpa

Floor space

Forming section equipment:
     Width:~30m      Length:~55m

Crane capacity in workshop

32ton Crane  Lifting height: 9m


C. Forming section Technical process: (
Front-swing type, Centralized positioning, Intermittent manufacturing)

image009

Raw coil loading→uncoiling→peeling and straightening→pinching and leveling→electrical centering→shearing and butt-welding→electrical centering→edge milling→surface cleaning→manual centering→main driver feeding→edge prebending and guide board→manual centering before forming→forming and sizing→inside welding→outside welding→cut to length→pipe moving out→pipe pulling off→repairing welding→collecting


Product mix:

Pipe outside Dia.

Thickness(mm)

mm

Q345B

508

10

529

10

630

12

720

12

820

14

920

14

1020

16

1220


18

1420


18

1620


20

1820

20


D. Equipment technical parameter and supplying scope:

No.

Name

Qua.

Technical parameter

Rem.

A

Φ508-1820X20mm SSAW PIPE LINE Forming section

1

Coil car

1

Max.weight of coil: 30ton

Support roller dia.: Φ300mm

Material of roller: 42CrMo

Moving motor: 7.5KW


2

Uncoiler

1

Double head type

30ton coil

Lifting cylinder Φ220/150mm

Sidesway cylinder Φ140/100mm


3

Peeler and straightener

1

Peeler swinging, stretching out and drawing back   for uncoiling

Three-rollers straightener

Swing cylinder Φ200/125mm

Stretch cylinder Φ180/125mm

Depress cylinder Φ160/90mm


4

Pinch roller and leveler

1

Main power 37KW Focus driving

Pinching roller(2) Φ280mm

Cylinder depressing

Leveling roller(up 3 down 2)Φ210mm

Electrical depressing


5

Electrical vertical roller

3

Roller size: Φ240mm Material:GCr15

AC motor 5.5KWX2


6

Manual vertical roller

1

Roller size: Φ240mm Material:GCr15

Manual adjusting


7

Shearing and butt-welding machine

1

Φ360mm shearing cylinder

Automatic Submerge arc welding

Share with inside welder DC-1500

Stand moving cylinder Φ125/95mm

Clamping cylinder Φ140/100mm


8

Edge miller

1

Main power 37KWX2 AC motor

Frequency control

Milling blade Φ500mm

Milling depth 10-15mm

Groove size: X-direction 30o Y-direction   30o

Straight flange: 6-8mm

Width adjustment motor: AC 1.5KW

Including auto chip-removal system





9

Surface cleaner

1

AC motor driving Nylon brush belt


10

Main driver

1

Feeding force: 1000KN

Single driving 37KWX2

DC converter Planetary gear box

Feeding speed: 0-3m/min

Feeding roller: Φ500mm

Material: 60CrMoV

Depressing cylinder Φ320mmX2


11

Prebender and guide board

1

Prebending roller: 2 sets

Guide board roller: Φ130mm


12

Forming machine

1

Double-base type

1#/3# forming roller can swing centered   pipe-center

1#-3# rollers for forming work, 4#-8# rollers for   sizing and assisting work

Forming angle: 45o-81o

Max.Screw pitch: 2300mm

Base moving motor: 4KW

Beam lifting motor: 3KW

2# roller lifting motor: 5.5KW

2# roller nodding motor: 2.2KW

5#/7# roller moving motor: 2.2KW

2# forming beam: 2 sets

Forming roller: Φ150mm


13

Feed table

1

Cylinder driving swing work


14

Adjustment device for Inside and outside welder

1

Inside welding adjustment fixed on 2# forming beam

Outside welding adjustment fixed on up-beam of   moving centering guider


15

Payoff table

1

Including support roller(1)+moving centering   guider(1)+V-type supporter(1)+output roller(4)+pipe puller(3)+angle   adjustment device(1)

Angle adjustment driven by cylinder

Swing angle: ±1.5o


16

Flying cutter

1

Plasma cutter LGK200


17

Pipe dropper

3

Drop pipe off to low table


18

Embedded parts

1

Including embedded parts and foundation bolts,   excluding installing iron block.


19

Hydraulic system

1

Including hydraulic station, group valve, piping   and joint, excluding oil and cooling piping. Using Beijing HUADE brand   element.


20

Electrical control system

1

Including control cabinet, operating desk,   operating box, excluding cable and low-tension distribution board.

PLC, frequency control, converter use Siemens   brand products.


B

Outsourcing equipment


User-supplier optional


1

Lincoln welder DC-1500

2

Lincoln

Lincoln

2

Lincoln welder AC-1200

1

Lincoln

Lincoln

3

Butt-welding car

1


Lincoln

4

Weld flux recovery system

2

For outside and inside welding

Wujiang dongnan

5

Weld flux treatment system

1


Wujiang dongnan

5

Plasma cutter

1

LGK200

Huaqiang


E. Φ1820X20mm SSAW PIPE LINE Forming section common auxiliary consumption and personnel allocation:

No.

Name

Simultaneous working power

Water

Air

1

Φ508-Φ1820X20mm SSAW PIPE LINE   Forming section

150 KW

10 m³/h clean circulation water

2Nm³/min

2

Lincoln welder

180 KW



3

Weld flux recovery system

15 KW

---

0.5Nm³/min

4

Weld flux treatment system

15 KW

---


5

Plasma cutter

40 KW



6

Hydraulic system

40 KW



Total


410KW

10 m³/h clean circulation water

2.5Nm3/min


Φ508-Φ3620X25.4mm SSAW PIPE LINE Forming section operating personnel allocation:

(Coil-loading, uncoiling, shearing and butt-welding, edge milling) 1 person+(forming) 1 person+(inside and outside welding) 2 persons+(pipe cutting) 1 person=5 persons


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