TPT March 2011

I nspection , T esting & Q uality C ontrol

Mill inspection equipment

rotating detector shoes then scan the outside surface area of the pipe circumferentially in a helical path. This method detects flaws such as longitudinally oriented seams, cracks, and overlaps. The pipe is then conveyed through the Truscope inspection unit, which identifies internal and external flaws and wall thickness variations by utilising ultrasonic sound waves coupled to the pipe surface by water. As with the Amalog, the Truscope is equipped with a multiple-shoe detection system. As the pipe enters the rotating assembly, water is applied to the outside pipe surface to provide the acoustic coupling required for ultrasonic inspection. The detector shoes are then brought into contact with the outside pipe surface to scan it in a helical path. The Truscope can be configured to detect longitudinal, transverse and oblique defect orientations, and out of tolerance wall thickness variations and laminations. Pipe defect indications are transmitted from the inspection platform to the computerised inspection electronics for software analysis and reporting. NOV Tuboscope – USA Email: millndt.systems@nov.com Website: www.nov.com

NOV Tuboscope, USA, is a supplier of tubular inspection services and equipment for the petroleum and pipe manufacturing industry. The company’s range includes the Amalog ® and Sonoscope ® electromagnetic inspection (EMI) systems, and the Truscope ® , TruWall ® and TruScan ® ultrasonic (UT) inspection systems. The Truscope A/S system provides full- body inspection across a large range of pipe diameters. These pipes can be seamless or ERW and manufactured from ferrous or non-ferrous alloy materials. They can also have a variety of end conditions: saw-cut or cropped; plain-end; threaded; coupled; and upset or non-upset. With its combination of EMI (Amalog and Sonoscope) and UT (Truscope) techniques, the Truscope A/S satisfies the stringent requirements of latest edition API 5CT, 5L and 5D. It also meets numerous other international specifications for non- destructive inspection of tubular products for the energy industry. The inspection system is composed of two main sections – the inspection platform and the computerised inspection electronics.

Placed within a pipe conveyor line, the pipes are advanced to the inspection platform. Mounted on this platform are pinch rolls that contain the pipe and provide the driving power to move it at a constant speed though the three individual inspection heads, or positioners. All three positioners are mounted on track roller systems to allow movement in or out the conveyor line for pipe size changeover or maintenance. Pipe to be inspected is first conveyed through the Sonoscope inspection unit, where a high-strength active magnetic field, oriented longitudinally, is introduced into the pipe. With the entering pipe end, a multi- number of stationary detector assemblies, or ‘shoes’, are brought into contact with the outside diameter pipe surface. Flaws such as transversely-oriented cracks, rolled-in slugs and pits are detected. The pipe is next conveyed through the Amalog inspection unit, which is equipped with a dual-shoe detection system integrated into a rotating magnetiser assembly. As the pipe enters this unit, a high-strength active magnetic flux field, circumferentially oriented, is introduced into the pipe. The

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Welding seam processing machine

- Removal of the ID and OD welding seam scarf of large-diameter pipes over a length of 400 mm fully automatically

- No production of swarf

- Exact measuring of the welding seam by a scanning device

Maschinenfabrik Liezen und Gießerei GmbH Fabriksplatz 1, 4662 Steyrermühl, Austria

Phone: +43 7613 8883, Fax: +43 7613 8883 30 E-Mail: saegen.fraesen@mfl.at, www.mfl.at

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