نظرة عامة
Our Single Girder Gantry Ultrasonic Pipe Testing Machine is a fully automatic CNC-driven NDT solution engineered for 100% full volumetric inspection of seamless and ERW oil pipes, casings and production tubing.
Equipped with high-performance ultrasonic transducer arrays, it achieves high-sensitivity detection of longitudinal cracks, transverse fissures, oblique defects and laminar delaminations. In a single inspection run, it also performs precise full-length wall thickness measurement simultaneously.
All inspection procedures and data recording fully adhere to authoritative industry standards API 5CT and API 5L, reliably meeting rigorous quality control requirements of OCTG manufacturers worldwide in the oil and gas industry.
مبدأ العمل
The machine operates on the ultrasonic pulse-echo technique. High-frequency ultrasonic waves (2–5 MHz) are generated by piezoelectric probes and transmitted into the pipe wall via water-coupling.
- No defect: Ultrasound travels through the wall and reflects from the inner surface, producing a back-wall echo.
- With defect: Waves reflect earlier at discontinuities (cracks, inclusions, laminations), generating a defect echo before the back-wall signal.
- The system calculates defect depth, size, and position based on echo time and amplitude, enabling accurate, repeatable, and high-speed inspection.
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