OFF-LINE WELD SEAM UT
Function
- Final inspection for quality assurance of pipe weld seam
- Probe moving type or pipe moving type
- Conventional multi-ch. or advanced phased array technique
- Optional auto seam tracking and double heads mechanism
PERFORMANCE
- Coupling
- Water-column
- Frequency
- 3.5 ~ 5 MHz
- Flaw
-
Longitudinal flaw at weld seam with coupling check
Option : Laminar flaw in HAZ
LF in mid-wall by tandem
Transverse flaw
Wall thickness monitoring
- Test method
-
Pulse echo
C.V or P.A UT technique
- Flaw Detectability
-
N5 notch ( or 1.6mm TDH) for weld seam
6.4mm FBH for HAZ
(according to API5L or SHELL)
- Seam-tracking
-
Conventional UT : Manual & automatic
Phased array UT : without seam-tracking