TPT January 2016

Inspection, testing & qual ity control

Full body ultrasonic testing of spinning tube

motion. This design ensures minimal wear and allows testing of some non- round tube shapes. The system’s design allows the tube producer to test a broad range of tube diameters (in this instance from 45.7 to 292.1mm) with only a convenient, minimal adjustment of the roll separation for changes in dimension. The test head is lifted into the test position beneath the tube by an air cylinder when the leading end of the tube has passed, and lowered when the trailing end is approaching. This ensures the head is securely positioned when the tube ends pass, preventing possible damage during normal operation. A 49ft-long inlet and exit conveyor system, controlled by a PLC and conductor, includes a kick- out mechanism for transferring rejected tubes off to the side. The system is designed to detect longitudinal and transverse OD and ID defects 5 per cent of the tube wall, and a circumferential wall thickness reduction of 5 per cent.

transducer elements within a water box carrier, with follower rolls that ride on the under surface of the tube being tested. The transducer holder within the test head can move to either end of the water box to allow for testing to the very end of the tube, minimising untested ends. The spinning tube moves longitudi- nally past the transducers and the APC design automatically adapts the angle of the rolls to the helical pitch produced by the tube’s rotational speed and forward

MAGNETIC Analysis Corp (MAC) has developed a new automated pitch control (APC) ultrasonic system for full body tube testing in spinning tube applications. Capable of handling a larger range of dimensions, and material that is not as straight as that usually required by other test systems, the APC design is a new option for this application. A recent MAC APC system for full body seamless tube testing uses a test head that incorporates 30 ultrasonic

MAC’s APC ultrasonic test head for full body spinning tube inspection

Magnetic Analysis Corp – USA Fax: +1 914 703 3790 Email: info@mac-ndt.com Website: www.mac-ndt.com

Ultrasonic thickness measurement ELCOMETER is a manufacturer of inspection equipment, with specialised divisions dedicated to coatings inspection, ultrasonic NDT inspection, concrete inspection and metal detection. The company’s new MTG ultrasonic thickness gauges are designed to make measuring material thickness easier. Rugged, fast and easy to use, the new range of hand-held gauges accurately measure up to 500mm (20") thick. With an easy-to-use menu system in multiple languages, the gauges can be used with little or no training. ensuring accurate and repeatable results; display readings, statistics, bar graph, run chart, reading & differential and B-scan; up to 40 user-programmable limits, with audible and visual pass/fail warnings; storage of up to 100,000 sets of readings in 1,000 sequential or grid type batches; and integral zero disc and intelligent transducers for automatic probe recognition. The new Elcometer MTG ultrasonic thickness gauges offer accuracy of ±1 per cent across the full 0-500mm range on smooth, rough, curved coated or uncoated surfaces. The top-of-the-range Elcometer MTG8 with ThruPaint™ Echo-Echo technology

Measurement modes include pulsed- echo (P-E), echo-echo ThruPaint™ and velocity mode – suitable for determining the homogeneity of a material. Key features include user- programmable calibration memories,

Wireless connection to ElcoMaster ® data management software via Bluetooth or USB to PC, Android or iOS mobile devices allows the generation of professional reports in minutes.

Elcometer Ltd – UK Fax: +44 161 371 6010

Email: sales@elcometer.com Website: www.elcometer.com

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J anuary 2016