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MAC MADE A STRONG PRESENCE AT NDE 2009- INDIANovember 25, 2009
December 10-12th, 2009
Magnetic Analysis Corporation, most commonly referred to as MAC made a big splash at India’s NDE 2009 show December 10-12th. MAC, along with its Indian counterpart, Inmar Corporation were gold sponsors for BHEL & NIT- National Institute of Technology located at Tiruchirappalli - 620 014 Tamilnadu, India.
MAC designs a wide range of eddy current, ultrasonic, and flux leakage NDT equipment. MAC’s stands had a full selection of product brochures and information along with helpful, knowledgeable representatives to discuss the best custom solution to an application. Equipment demonstrations were also included.
Demonstration units included a 4 channel Echomac® FD-4 ultrasonic rotary and electronics, a 4 channel Multimac® SM and a single channel Minimac 40 eddy current testers with encircling and tangent coils in various platform configurations. A Promac 141 eddy current probe tester was also available for demonstrating flaw detection in heat exchanger tube and similar probing applications.
MAC’s Engineering Manager, Zhongqing You is presented a paper on “Testing for API Specifications” and was chairman for the 9th session on electromagnetic methods. MAC'S SPEECH AT 2009 ISTANBUL TRADE SHOWNovember 20, 2009MAC's Speech at 2009 Istanbul Trade Show
November 2-3, 2009
Magnetic Analysis Corporation had a large presence at this year’s Istanbul (Turkey) trade show. The event was divided into 2 separate categories; Cable & Wire, and Pipe & Tube. MAC’s table tops were found in both conference halls located in the WOW Hotel and Convention Center.
MAC’s R&D department presented a paper during the technical session held on November 2nd. The paper described New Developments in Flux Leakage Inspection of OCTG Tubes and Pipes
Many of MAC’s engineers are ASTM level III certified or hold PhDs in fields such as electromagnetic testing and NDT. MAC engineers have contributed innovative techniques and resolutions that allow MAC to provide more custom designed solutions that not only meet API and ASTM standards, but those of the mill and client as well.
For more information on MAC’s eddy current, ultrasonic, and flux leakage equipment, please visit:
www.mac-ndt.com or send inquiries to contactus@mac-ndt.com
FLUX LEAKAGE & ULTRASONIC MULTITEST SYSTEM FOR OCTGMarch 24, 2009
MAC has custom designed a Longitudinal and Transverse Rotoflux® flux leakage and Echomac® FD-4 ultrasonic inspection system for testing large and demanding Oil Country Tubular Goods(OCTG). To meet individual requirements for more demanding specifications, MAC has custom designed systems that may be comprised of eddy current, flux leakage, and/or ultrasonic technologies. Selection of the most appropriate test technology is based on size and speed specifications, wall thickness, and the discontinuities that must be detected. An OCTG system composed of MAC’s Rotoflux® transverse and longitudinal flux leakage systems, a Demagnetizer, and an Echomac® ultrasonic test system was recently designed and delivered for inspection of heavy wall, hot rolled, straight or upset pipe. Specifications for this system are:
Pipe Diameter- 60mm-220mm; 2.36”-8.6”
Wall Thickness- up to 20mm; 0.78” Test Speed- 20-90m/min; 65-295 fpm for upset pipe 90m/min; 295 fpm for straight pipe The nondestructive test commences when the tube first passes through the longitudinal magnetization test where it will receive a high level of magnetic saturation and be tested for transverse defects. Then, the tube passes through the transverse magnetization test where longitudinal defects are detected. The Rotoflux detects longitudinal and transverse defects on the OD and ID, such as rolling skins, laps, cracks, laminations, cavities, and internal defects. After passing through the flux leakage inspections, a demagnetizer is used to remove any residual magnetization before the tube enters the ultrasonic test for OD/ID defects, wall thickness and lamination.
The total system also includes inlet and outlet conveyors comprised of driven V-rolls that are articulated. This means that they can be moved up or down allowing for the upset ends to pass. The inlet conveyor feeds the tube through the system which is on a triple guide constant center bench. The bench is designed to open for upset ends and close automatically after the leading or trailing end has passed. The outlet conveyor then transports the tube from the test and into accept or reject sorting pockets. This system is completed with the Rotoflux and Echomac FD-4 electronics, a water system, automatic markers, and a Conductor control panel.
MAC INTRODUCES 220mm ROTARY ULTRASONIC TESTERMarch 24, 2009
The Echomac FD-4 Ultrasonic® rotary has been expanded to handle 220 mm diameter tube and pipe, often used for OCTG applications.
Magnetic Analysis Corporation’s has just expanded its line of Echomac® rotary ultrasonic test systems to handle 220 mm diameter tube and pipe, often used for OCTG applications. Prior models handled up to 180 mm diameter. Rotary ultrasonic systems have the advantage of allowing high throughput speeds combined with full body coverage. The 220 mm Echomac seal-less rotary spins the UT transducers and water couplant at speeds up to 850 rpm about the tube as it is fed through the test. The seal-less design ensures minimum maintenance, and the shear wave transducer holders are designed to allow for easy and accurate reconfiguration for different diameter tube through a simple rotational adjustment of the transducer offset. The pulser electronics, located on the rotary, allow for very low noise signal processing as the transducer pulse and initial detection is accomplished close to the transducer before going through the rotary transformers to the Echomac FD-4 instrumentation. The 220mm system uses Echomac FD-4 instrumentation with 14 transducer channels to detect longitudinal, transverse, and known angle oblique defects; wall thickness; ID/OD measurement and variations such as ovality. Using FD-4’s EchoHunter® software, each channel can be easily configured for any combination of thickness, dimensional measurement, and flaw detection. Features include simultaneous A-scan and strip chart display of all channels showing peak values of signals within each gate, and full network support for remote viewing and control. The flicker free A-scan captures non-repetitive events or flaws of short duration, even in very high speed UT scanning systems, typical of rotating transducer heads. A recent computer controlled Echomac 220mm UT system shipped to a tube mill in MAC TEST SYSTEM FOR TITANIUM RODMarch 24, 2009
To meet Aerospace specifications, MAC has coupled a Multimac® eddy current system to an Echomac® FD-4 ultrasonic system for testing Titanium bars.
Magnetic Analysis Corporation, a designer and manufacturer of nondestructive test systems for over 80 years, recently supplied a multi-test eddy current/ultrasonic system to inspect small diameter titanium bars and rods (2.54 mm to 31.75 mm). Testing criteria was AMS-2631B, Class AA for the ultrasonic test (Aerospace specifications) and typical eddy current inspection standards for the eddy current test.
By combining eddy current and ultrasonic technology in a comprehensive inspection system, superior test results can be obtained as each technique is used to detect the conditions that it is best suited to find. This particular system incorporates Echomac® FD-4 ultrasonic instrumentation, an Echomac Rotary which spins the transducers and water couplant around the bar, and a MultiMac eddy current instrument and test coil. The UT test uses 1 normal incidence and 2 shear wave transducers to inspect for surface and near-surface defects such as seams, spiral seams and light cracks as well as inclusions and deep voids. The eddy current single channel test compliments the UT test by detecting some very small surface seams or pitting that are poor reflectors of sound. The test system also includes air operated dual pinch stands designed to drive and position the test material accurately, a slide and elevate platform to adjust the UT Rotary, a water recirculation system for the couplant, and automatic markers. The system is mounted on a welded test bench and “learn controls” are included to automatically adjust the timing based on the initial test piece.
With manufacturing facilities in Mt. Vernon, New York, US, and Ostersund, Sweden, MAC designs, manufactures and installs test systems in bar and tube mills worldwide. Experienced sales engineers and representatives help customers to get the best possible inspection system for their particular application. In addition to the titanium test system described above, MAC has delivered large combined ultrasonic/ flux leakage systems to inspect 180 and 220 mm oil country tubular goods in Russia and India.
MULTIMAC® MULTI-MODE EDDY CURRENT TESTERAugust 20, 2008MultiMac®, a Windows® based, multi-mode eddy current tester that operates with encircling/sector test coils (to detect short defects) and/or rotary test probes (to identify long, seam-type surface defects).
MOUNT VERNON, N.Y./January 15, 2008 – Magnetic Analysis Corp. (MAC) introduces MultiMac®, a Windows® based, multi-mode eddy current tester that operates with encircling/sector test coils (to detect short defects) and/or rotary test probes (to identify long, seam-type surface defects). The new multi-mode capability incorporates all of the best features of MAC’s individual encircling coil and rotary probe instruments into one unit.
The MultiMac includes up to eight test channels, and a wide selection of test parameters and special circuits to enhance signal-to-noise ratio. Building on the successful Echohunter® software graphics, the instrument’s Test Screen displays a single channel, and the Multi-Screen provides a simultaneous display of 1 to 8 channels. The Test Screen provides all the information needed to set up and operate MultiMac. Both screens display simultaneous polar and linear modes and all test parameters, including thresholds.
Each channel on the MultiMac can be individually configured with different frequencies and different channel modes. For example, “differential” mode is used to detect short weld-line defects, while “absolute” mode is appropriate for long, continuous flaws and open welds. A choice of three thresholds per channel – All Phase, Sector, or Chord – can be mapped to any of eight outputs, independently configurable for time or distance delay and normal reject or latched mode.
With these features, MultiMac can be used to test a wide variety of non-magnetic products, or inspect magnetic material by using Direct Current saturation systems. A special configuration of channels, based on flux leakage phenomenon, provides detection of very small subsurface ferrous inclusions in copper or aluminum rod. Test speeds for the MultiMac can range from one fpm up to several thousand fpm. MultiMac offers end-suppression circuitry with optional optical sensor to prevent false signals from leading and trailing ends.
The MultiMac offers enhanced recording capability and remote access through in-plant networks or the Internet. Featuring user-configurable reports, data output can include customer and product information, defect location, time, amplitude, and phase. Reports can be stored locally on a network server or on a flash memory device using the USB port.
Operator interface for the Windows-based system is by use of a keyboard and mouse. The all-inclusive model, designed for demanding plant environments, consists of a sealed, heavy-duty cabinet with a built-in 17” monitor, air conditioner and pull-out keyboard. Other smaller models can be supplied with the pull-out keyboard, an air conditioner and separate, optional monitor.
Magnetic Analysis Corporation has 80 years of experience as a leader in non-destructive testing. The company developed the first American-made system using electromagnetic principles for the detection of flaws in steel bar products. Since then, MAC has grown to become a major source of eddy current, flux leakage and ultrasonic equipment and systems for testing metals throughout the world. With headquarters and manufacturing plant in Mount Vernon, N.Y., a European plant in Ostersund, Sweden, and field engineers and representatives located throughout North and Central America, Brazil, Chile, Europe, Australia, Turkey, Korea, India, and China, customers worldwide can be served. MAC UT/ET SYSTEM COMPLETED AT INTERPIPE NTRP IN UKRAINEAugust 14, 2008A large multi-test ultrasonic/ eddy current system has been installed at the Interpipe NTRP steel tube rolling mill in Dnepropetrovsk, Ukraine. This MAC system includes a 10 channel Echomac® ultrasonic FD-4 and rotary to inspect for longitudinal and transverse defects and measure dimensions and wall thickness. Also included is a MAC 250 eddy current equipment to detect short surface defects, a Production Comparator to check steel grade, and a Demagnetizer to remove residual magnetism. The automated test system is mounted on a large test bench which includes a slide and elevate mechanism, coil platforms, and drives. MAC also supplied a complete recirculating water package and water chiller for the ultrasonic inspection test, and a bar wash to prepare the tube for testing. The system is designed to handle tube ranging from 1/2" to 6" diameter (12.7 mm to 152.4 mm). Installation of this system, along with a pipe end inspection test, enables NTRP to provide full non destructive testing of its steel pipe products, thereby improving its offering to customers. ULTRASONIC & EDDY CURRENT BILLET TEST SYSTEMS AVAILABLEJuly 13, 2007The Magnetic Analysis ultrasonic billet inspection system utilizing MAC's Echomac® FD-4 test electronics with 48 channels, expandable to 64, makes it possible to ultrasonically inspect large bar products a production speeds. The test system includes four test heads covering a quadrant of the bar or billet. Each head includes 3 surface ride shoes containing 3 or 4 trandsducers and 1 bubbler for coupling purposes. Touch panel controls make controlling the pneumatically actuated mechanics user friendly. In automatic mode, test heads extend and retract as the billet or bar passes through the system. Setups are easily stored and recalled for all round and billet sizes. A new design eddy current test system for square billets has also been developed. The 8 channel system inspects the 4 flat surfaces and the corners of steel billets. Contact info@mac-ndt.com to receive a brochure on the ultrasonic billet test system and information on the eddy current test system.
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