SAW SPIRAL PIPE-ON LINE BODY LAMINATION INSPECTION BY ULTRASONIC METHOD

The body lamination test can take place just after the welding during the pipe manufacturing process and can operate at high scanning speed.

   Pipe manufacturing range :
   -Pipe diameter range :500 mm to 3000 mm
   -Wall thickness range:5 mm to 25 mm
   -Coil width range : 900 mm to 2000 mm

Meets Specifications

API 5L 2000
ISO 3183-3
ARAMCO
........

   The system includes

  UT probes ( 4 to 8)
  Multi-channel UT system (2000
     meas/S.
  Fully programmable settings
    Marking on tube :
           -  Lamination detection
           -  Loss of coupling
  Mechanical head oscillator and
     probe holder (600 mm/S)
  Data capture
           - First printout: produce
             scanning information for
             each probe.
           - Second printout:summary
               and full report, traceability
               of each defect or loss of
               coupling detected for a
               complete coil.
  Storing on CD-Rom
  Network
 

  Twin crystal probes: focal length
     at 50 % of the wall thickness.
  25% minimum of the surface coil
     tested.
  Lamination control detects a 6.3
     mm flat bottom hole at 1/2 plate
     thickness.
  Coupling stability control at each
     shot.   

Environment

The UT system is designed to be placed very close to possible noise sources(plasma cutters,welding machines,frequency inverters ....)
The possible electromagnetic interference peaks are lowered and not detected.Besides the system can operate in difficults conditions (room temperature up to 50°C and humidity up to 98%.

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