High Precision Seamless Pipe Ultrasonic Testing Machine,On-line Ultrasonic Flaw Detection Machine for OCTG Tube Mill

Overview

Working Principle

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.

Our Core Advantages

• High‑precision detection for pipe body, thread and coupling, effectively identifies cracks, porosity, inclusions and other hidden defects conforming to API‑5CT standards.
• High‑speed on‑line non‑destructive testing, matches full‑line production rhythm without interrupting continuous OCTG manufacturing.
• Multi‑mode integrated inspection: combine ultrasonic, magnetic particle and eddy‑current testing to cover surface and subsurface flaws.
• Automatic data recording & real‑time report generation, traceable inspection records for quality audit and customer review.
• Intelligent alarm & automatic marking for defective tubes, reduces manual misjudgment and lowers human‑error risk.
• Stable performance for long‑hour heavy‑duty industrial operation, suitable for harsh pipe‑making workshop environment.
• Easy integration with existing OCTG production line, minimal modification required for on‑site installation & commissioning.
• Low maintenance cost, supports long‑term continuous running to guarantee overall line productivity.