High frequency 5 1/2"~12 3/4"(φ139.7~φ323.9mm)ERW pipe machine

DATE:6/13/2019 HIT:40 SOURCE: AUTHOR:

High frequency 5 1/2
  • High frequency 5 1/2
The ERW pipe mill is used to process the strip thickness δ=3-12.7mm, the plate width B=430-1020mm, the steel grade X70, N80 (Max) strip winding, leveling, forming, welding and other processes into diameter φ139.7-φ323.9mm straight seam welded pipe. It is equipped with medium frequency annealing, ultrasonic flaw detection, trimming flat head and hydraulic pressure test to produce welded pipes that meet API-5L, API-5CT, ASTM A500, JIS G3444 and other related standards. The electronic control system adopts Siemens PLC automatic control system, digital display system, Delta's variable frequency speed control system and so on. Simple operation, convenient maintenance and high reliability.


Technical parameter of  the unit

Steel coil O.D.

1300-2300mm

Steel coil I.D.

508-760mm

Steel coil width

500-1300mm

Material

Grade B steel, J55, X70 and N80, etc.
Wall thickness δ=12.79mm at N80

Steel coil weight

Max. 25tons

Product standard

API 5L ,API 5CT ,GB/T9711-2011, ASTM A500, JIS G3444

Pipe diameter

51/2"~123/4"(φ139.7~φ323.9mm) 

Pipe thickness

3-12.7mm

Pipe length

6-12.7m

Length tolerance

0-6mm

Max. testing pressure

70Mpa

Welding mothed

High frequency induction (contact) heating extrusion forming

High frequency equipment power

1000KW(solid state)

Frequency

100-450KHz

Welding speed

10-30m/min

Weld Annealing

Medium frequency induction heating

IF equipment power

3*600KW

Elevation

+1000mm

Output

100000-250000tons/year