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Spiral Welded Pipe Mill
    发布时间: 2016-10-06 23:01    

Spiral Welded Pipe Mill

The steel coils are unfolded and leveled by the mill equipment. And they are sent to the forming machine in a certain angle. Supplemented by a certain angle, the continual pipes are formed in the principle of three-roll rolling machine. Continual spiral welding is welded by submerged-arc welding machine.

According to the different function of our products, the spiral welded pipe mills are divides in to API standard model, national standard model and special purpose model. API standard model mainly produces the delivery pipe with petroleum or natural gas (long distance).the material and quality of the steel pipe need to be very good. The requirements for mill equipment and testing equipment also are very high. National standard model produces the pipe used for short distance delivery of natural gas or water, the pipeline construction in the city, the structure pipe, column pipe and so on. The requirements for the material and quality of the steel also are very high, second only to that of API standard. Special purpose mill is used for some special purposes. For example, our company developed the special 60~214 mill aiming at the function of petroleum filter.


The specification of our products is fromΦ9 0 toΦ3500. The thickness of the wall is from 1mm to 25.4mm. The material of our products is from Q235 to Q235*80. Besides, special material such as the stainless steel is included. All of them cover all the mills.

Production process:

Loading coil-uncoiling-leveling-cutting and butt welding-Disc shearing-edge milling machine-delivering machine –prebending and guide board-forming-internal welding-external welding-tracking off-extracting-trimming-hydraulic testing-flat head chamfering-X ray inspection-ultrasonic inspection-spraying-connection of the finished products


Specification:

No

Model

Specification

coil width(mm)

Thickness(mm)

Coil weight(ton)

Capacity(kw)

 

Area(M2)

1

SWP-400

Φ219Φ426

 

400750

 

510

10

180

18×180

2

SWP-500

Φ219Φ529

400800

 

511

15

200

18×180

3

SWP-600

Φ219Φ630

 

4501050

 

612.7

20

240

21×180

4

SWP-700

2Φ19Φ720

 

5001250

 

514

 

20

260

21×180

5

SWP-800

Φ219Φ820

 

5001300

 

618

30

380

24×180

6

SWP-1000

Φ219Φ1020

 

5001300

 

620

30

390

24×180

7

SWP-1400

Φ325Φ1420

 

5001560

 

622

30

400

26×180

8

SWP-1600

Φ426Φ1620

 

5001560

 

625.4

40

510

30×180

9

SWP-1800

Φ508Φ1820

 

11001600

 

825.4

40

510

30×180

10

SWP-2000

Φ508Φ2020

 

12002000

825.4

40

530

30×180

11

SWP-2400

Φ508Φ2400

12002000

825.4

40

530

30×180

12

SWP-3000

Φ508Φ3000

12002000

825.4

40

530

30×180