Eddy Current - Ultrasonic Flux Leakage

Nondestructive Testing Since 1928 Magnetic Analysis Corporation Eddy Current - Ultrasonic Flux Leakage NDT Equipment for the Only Test System That M...
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Nondestructive Testing Since 1928

Magnetic Analysis Corporation

Eddy Current - Ultrasonic Flux Leakage NDT Equipment for the Only Test System That Matters... YOURS!

OVERVIEW Magnetic Analysis Corporation

Magnetic Analysis Corporation has been MAC Worldwide a leader in nondestructive testing since 1928. Through the years I have seen the MAC’s experienced Field Engineers are based in the United metals industry undergo market shifts, States, Europe, Australia, and China. economic turmoil, and technological Knowledgeable and trained representatives are located in breakthroughs. MAC as always adjusted Argentina, Brazil, Chile, India, Korea, Mexico, Russia, our focus to follow the trends while Romania, South Africa, Spain, Taiwan, Thailand, Turkey, satisfying our customers’ needs. With the current shift UAE, and the Ukraine. They can: towards improving energy efficiency, MAC has developed test systems meeting the stringent • Consult on test system selection requirements of API as well as ASTM, EN, DIN, and • Install equipment other standards organizations, allowing manufacturers • Train operators and QC personnel to improve their processes and ship more products • Maintain, repair and calibrate equipment such as Oil Country Tubular Goods (OCTG) and Special Bar Quality (SBQ) steel. Our existing product line provides repeatable and reliable testing of wire, bar, tube, and parts. With major investments going to markets such as Russia, India, China, and other Southeast Asian countries, we have expanded our localized international staff of support technicians and engineers to provide superior customer service including maintenance and repairs. The results are seen in plants throughout the world. Our production-oriented approach from individual test instruments to completely automated inspection systems has led MAC to be one of the foremost worldwide suppliers of eddy current, ultrasonic, and flux leakage multi-mode inspection systems for testing metal tube, bar, wire and parts. We are here to provide you with a free quote on systems from simple to complex including custom solutions to fully satisfy your needs. You may also contact MAC for training of personnel, lease options, and other NDT needs. We look forward to helping your company reach its maximum potential. Sincerely,

Joseph Vitulli, President Triple Guide Rolls

MultiMac® Eddy Current Coil & Rotary

Echomac® Ultrasonic Rotary

Triple Guide Roll Bench 2

© 2012 Magnetic Analysis Corporation

Automatic Paint Markers

OVERVIEW Magnetic Analysis Corporation

MAC Eddy Current, Ultrasonic and Flux Leakage Instruments and Systems Magnetic Analysis Corporation produces a complete line of non-destructive test instruments and systems. • Eddy current, ultrasonic and flux leakage test instruments and inspection systems • Inspect bar, rod, tubing, wire, strip and metal parts on or off-line • Detect surface, subsurface, internal, ID and OD defects • Measure wall thickness, OD, ID, ovality and eccentricity in tube and pipe • Detect variations in alloy, heat treatment, hardness, grade • Designed for production-line use • Custom fixtures, controls, or complete systems can be designed to meet special needs When inspecting high quality tube and bar for industries such as petrochemical and automotive, MAC systems can test to API 5L, 612, ASTM E213, 108, 434, 276, 564, & EN 10893-10, among others.

Unique MAC Lease Option MAC offers short and long term operating leases on most standard test systems. Installation assistance, training and service by MAC’s own Field Staff is provided as part of the lease agreement. Service contracts or pay per visit arrangements are also generally available for systems that have been purchased.

Visit us at: www.mac-ndt.com E-Mail: [email protected] Phone: +1-914-530-2000 3

TESTING SYSTEMS Eddy Current, Ultrasonic, Flux Leakage

Designing a Test System for Your Needs Testing isn’t about rejecting product. It’s about shipping the maximum amount of product that meets your customers’ specifications — each and every time. Your test system should be designed for your particular application, whether you must meet the most exacting customer requirements or are testing to your own internal standards to maintain your quality reputation.

Simple Test Systems Eddy Current Testers For many applications, a simple eddy current test instrument can meet your specifications. Copper water tubing, for example, is often tested for surface cracks, pinholes and other defects, in conjunction with a coiler or recoiler using a one or two channel instrument such as the MultiMac®. A Coil Platform to hold and position the test coil may be all that is needed to complete the system. Eddy current testers can be installed in-line with many production operations, such as welding, drawing, straightening and cold forming. Insulated wire and cable can be tested for breaks or welds with a simple tester such as the Minimac®. Ultrasonic Testers For some simple ultrasonic test applications, a two or four channel Echomac® FD-5 with fixed transducers may be sufficient for mounting on your weld line with irrigated test shoes, a bubbler or similar couplant device, or with an existing “spin the tube” immersion system for full body coverage.

Too Small a Job to Invest in a System? MAC ISO Accredited NDT Test Facility • Diameters to 3.5” (89mm) and lengths to 45 ft (13.7m) • Encircling coil or rotary probe eddy current tests • High speed rotary ultrasonic tests • Detect surface, subsurface & internal defects • Measure or check alloy, grade or hardness • Measure wall thickness in tubing to .0003” • Meet industry specifications, including ASTM E-213, ASTM E-243, Mil STD 2154 • Test and return ship your product as fast as 48 hours

Contact MAC at +1 (330) 758-1367 Boardman, Ohio Test Facility

Steel bar being eddy current tested in MAC’s Ohio Lab

Meeting More Demanding Test Specifications Flux Leakage Testers Flux leakage technology has long been one of the preferred methods for testing carbon steel heavy wall tube and pipe for OD and ID surface defects and defects within the wall. By using MAC’s Transverse & Longitudinal Rotoflux® Rotaries, tube producers have the technology to comply with OCTG requirements that specify the detection of defects as small as 5% on OD and 5% on ID, depending on material type and condition. By combining one or more eddy current, ultrasonic or flux leakage testers with sophisticated electronic controls and precise mechanical components for handling and positioning your material and test sensors, you can achieve optimum performance on even the most difficult test applications at production speeds.

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TESTING SYSTEMS Tube & Pipe Applications

WELDED & SEAMLESS STEEL ALLOY TUBE IN-LINE

OFF-LINE

An eddy current test for stainless tube could incorporate a dual channel tester providing two separate coils testing at different points on the line to detect weld zone defects and to inspect the full circumference for base metal defects. Test components would include the MultiMac with two channels, an encircling test coil and a sector test coil and Coil Platforms.

A typical test station for inspecting welded steel tube might include an Echomac FD-5 and Echomac Rotary ultrasonic test system to measure wall thickness and detect longitudinal defects, such as incomplete welds; a MultiMac eddy current test to detect small, short incomplete welds, inclusions, voids or cavities; a Varimac® electromagnetic comparator for checking alloy; Coil Platforms and Elevating Tables, Automatic Markers, a Learn Drive with Auto-Diameter for automated adjustments of timing and positioning; and a Feed System, with feed table, accept and reject pockets.

For either welded or seamless tubes that are further processed through cold drawing and where requirements are stringent, the Echomac ultrasonic rotary may be the most appropriate tester, even on smaller diameters.

To the left is a system that was designed for small diameter, heavy wall, welded tube. Tubes range up to 3.5” (88.9mm) in diameter. Defects detected include transverse, longitudinal, and oblique on the ID and OD. The system recognizes defects down to 5% of the wall thickness, conforming to stringent standards (Such as API 5L & ASTM E213). The Echomac Ultrasonic Rotary is mounted on a triple guide roll bench and installed in-line at the end of the welding process. Paint markers and water package complete the system.

MEETING INDUSTRY STANDARDS FOR OIL COUNTRY TUBE AND PIPE An increasing demand for heavy wall tube for OCTG applications has resulted in developments in flux leakage technology that allow detection of transverse as well as longitudinal defects. Systems incorporating both flux leakage and ultrasonic tests provide the most comprehensive inspection to meet both API, ASTM, DIN, and EN standards(Such as API 5L & ASTM A252). A recent MAC designed system utilized a Rotary Rotoflux unit for the longitudinal defect detection, and a second rotary Rotoflux unit for the transverse defect detection. An Echomac UT tester measures wall thickness and detects laminations. Additional components in the system are a Demagnetizer and articulating roll feed system for upset pipe ends. All components are installed on a Triple Guide Roll Bench.

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TESTING SYSTEMS Tube & Pipe Applications

HEAT EXCHANGER TUBE With an Echomac UT rotary, MAC can cover a large OD dimensional range of longitudinally welded or seamless precision drawn tubes made of chrome steel, austenite, titanium alloys, copper, and other metals. At high throughput rates, depending on product diameters and conditions, untested ends of 50 mm can be achieved. The system includes the proprietary Echomac FD-5 electronics up to 32 channels with full network support for remote viewing and control. The multi channel display screen can provide both A-Scan and strip chart views of all channels simultaneously. The system can test to ASTM E213 & EN 10893-10 Standards, among others. Ultrasonic rotary on the Triple Guide Roll Bench for inspecting heat exchanger tubes.

COMPLEX AUTOMOTIVE TUBE MAC has successfully installed a Rotoflux longitudinal flux leakage tester to inspect ERW welded, normalized, cold-worked and straightened carbon-steel tubes used for automotive suspension structures and cross members with geometrical variances in the wall thickness.

Longitudinal flux leakage tester for complex, high quality automotive tube.

Specific defect detection includes weld defects, internal and external cracks, slivers, incomplete welds, and weld porosity. The Triple Guide Roll Bench allows for quick change-over and centers the product for increased accuracy. The EZ drop feature is used on the conveyors for the more delicate handling of material. The system is used in-line as a final test. The system can test to ASTM E570 & EN 61000, and other standards.

DETECTING SIGMA PHASE Sigma Phase, a condition that can cause tubes or bar to become brittle and lose their toughness and corrosion resistance is caused by extensive heat treatment. It has significant length and is not a single point type defect thus creating quite complex testing requirements. Using a MultiMac tester with an absolute channel, special coils, and a standard provided by the customer, sigma phase condition up to 2.6% of the tube wall cross section, has been detected. System can test to ASTM A923 Standards. The MultiMac eddy current tester detecting Sigma Phase.

FERROUS INCLUSIONS IN NON-FERROUS TUBE Metal inclusions such as filings from finning tools that are introduced into a tubular product during processing can be as small as 3 mg. Therefore they are not commonly detected by using a simple eddy current coil. In this instance a flux leakage Magnetic Inclusion Detector (MID) must be introduced to the system for better results. The MultiMac electronics combined with a special coil sensor provides the necessary DC field required to detect the ferrous inclusion. 2 6

TESTING SYSTEMS Bar & Billet Applications

FERROUS INCLUSIONS IN NON-FERROUS BAR For the detection of small ferromagnetic inclusions and stringers in nonmagnetic stainless steel rods and bars, MAC’s Production Comparator® PC-VI with null test coils may be used in off-line or in-line applications. The PC-VI can inspect most austenitic grade products in various configurations including rounds, hexes and custom shapes. Both tube & bar inclusion detection systems can test to ASTM E309, EN 10246-3, & DIN 17679 standards.

INSPECTING COLD DRAWN CARBON STEEL BARS

Eddy current rotary (to the left) and an eddy current coil & coil platform (to the right) for inspecting cold drawn bar.

The MultiMac eddy current (EC) rotary system utilizes probes that spin around the circumference of the bar to detect longer longitudinally oriented surface defects such as seams, laps, scabs, and cracks. The EC coil system utilizes an encircling coil on a Coil Platform to detect shorter defects such as short cracks, seams, scabs, and pits. In addition, an EC coil test will penetrate further into the material and, depending on the test parameters chosen, can detect some subsurface anomalies as well. When testing magnetic materials for defects, a magnetic saturation system must be used. MAC has coil platforms that use direct current (DC) saturation to provide adequate magnetization. System can test to ASTM A564 standards.

TESTING HOT ROLLED BAR Also available is the MultiMac Rotary for inspecting products such as Black bar. The MultiMac Rotary has a high sensitivity to surface conditions and oblique defects and works with AIR RIDE, along with Distance Compensation to protect the probes and inspect the bar despite surface scale. The MultiMac Flaw Verify feature properly eliminates most false rejections caused by residual surface scales, thus making shot blasting a non-requirement. This system can test to ASTM A29 standards. The Rotomac® BQ can operate in extreme conditions, such as material temperature above the Curie Point. This eddy current system combines stationary and rotating probes that can be mounted directly in a hot rolling bar and wire mill to detect seam type defects. This system can test to ASTM E1033 standards.

AIR RIDE Rotary

ROUND & SQUARE BILLET TESTING MAC has supplied an ultrasonic billet test system to inspect for internal defects in hot rolled 9” (228.6mm) square and round billets up to 9” (228.6mm) diameter, and an eddy current test to detect flat surface and corner defects of square billets. (MIL STD 2154) The UT system uses 36 channels of Echomac UT electronics with custom built mechanics. The eddy current system includes custom designed mechanics, 8 channels of MultiMac electronics with rotary probes for the flat surfaces, and 4 sector coils for the corners. Eddy Current system comprised of 4 headplates to inspect the flat surfaces of the square billet and 4 coils to inspect the corners.

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TESTING SYSTEMS Wire & Strip Applications

LAMINATION DETECTION IN STRIP

INSPECTING WIRE, ROD, & INSULATED CABLE FOR DISCONTINUITY & WELDS The Minimac® MAC 40 eddy current tester is generally the best choice to inspect wire, rod, and insulated cable. Encircling coils detect short surface and subsurface flaws such as cracks, butt welds, inclusions, and other defects in steel, stainless alloy or non-ferrous wire.

Eddy Current system for aluminum strip

By using a Minimac MAC 40 eddy current tester coupled with a rectangular differential coil, MAC is finding laminations in silver bonded copper strip used for manufacturing electrical contacts. A layer of silver is bonded to the copper strip to provide better electrical contacts, but during the process, gaps or laminations between the silver and the copper develop and need to be detected.

A high frequency option is available to detect welds or brazes in small diameter material such as tungsten filament wire. A Coil Platform such as the CP 10 or 15 would be appropriate for typical diameters of cable and wire. For more demanding applications, The MultiMac AC or the MultiMac SM is also available.

DEFECT DETECTION IN BIMETALLIC STRIP MAC’s Echomac UT electronics in an installed plate tester equipment.

CUSTOM INSPECTION SYSTEMS FOR PLATE, SHEET, AND STRIP MAC has eddy current and ultrasonic custom test systems for inspecting ferrous and nonferrous strip, plate, and sheet. Eddy current systems can test for surface defects while ultrasonic systems have been designed to do 100% inspection for lamination type defects on sheets and plates up to 5 meters in width. Ferrous inclusions in nonferrous sheet can be detected with MAC's MID test technology. In addition, MAC’s Echomac FD5 electronics may be integrated with existing ultrasonic immersion,squirter, bubbler, and other types of NDT equipment as well as incorporate C Scan software. Signal to noise ratios increase while increasing defect detection all without sacrificing speed when using MAC’s Multiplexing feature in the Echomac FD5 ultrasonic tester. 2 8

A MultiMac dual channel eddy current tester with two 9R probes adequately detects depressions, pits, and other weld zone imperfections in steel alloys (slightly magnetic) and butt joint welded bimetallic strip. Both top and bottom surfaces of the strip are inspected simultaneously.

Shows flaw signals indicative of bond/weld defects. Probe at 0.100” from edge.

TESTING SYSTEMS Parts Applications

PARTS TESTING Eddy Current Coils

Varimac with Model 570 parts gate and a split coil arrangement (shown above) is used to detect differences in length in long pins that would otherwise require manual sorting.

The Varimac instrument, used with comparator coils, can detect variations such as alloy, heat treatment, hardness, some dimensions and certain types of cracks in metal, particularly parts. Used with MAC Parts Gates (shown left), parts can be sorted and counted at speeds up to six parts per second into three separate groups. Selective circuits allow precise adjustment to provide optimum separation.

Electromagnetic Coils A sensitive low-frequency Production Comparator instrument with highly selective circuits which permit it to distinguish between changes in test signal phase, amplitude or harmonic distortion. Highly selective acceptance within a narrow range can be achieved. Optional multi-frequency software allows simultaneous analysis of 8 frequencies to meet complex test requirements. The PC-VI can be used to detect variations in case depth, core hardness, grade and structure in carbon steel products.

Varimac test screen and Coil for sorting on the left.

Typical Applications for Parts Testing Include: •Washers & Expanders •Coil Springs •Bearing Races •Inner/Outer Bearings •Ball Bearings •Fasteners •Strut Rods •CV Joints •Pistons & Piston Pins

•Rivets, Nails, Screws •Nuts, Studs, bolts •Grenades •Ordnance Shells •Medical Needles •Surgical Blades •Other Parts and: Tubes, Bars, Plates, Wires

*All parts may be submitted for a free evaluation by MAC’s experienced engineers to determine the best NDT solution for your application.

For more demanding parts testing applications such as tube and bar inspection before the bending and forming process, MAC offers superior eddy current, ultrasonic, and flux leakage test systems to meet customer demands.

Eddy Current Rotary

Flux Leakage Rotary

An eddy current rotary used in conjunction with coils can provide 100% coverage in detecting seam and weld type surface and subsurface defects including cracks, laps, and slivers.

Another method for testing parts and tubular products is MAC’s Rotoflux flux leakage system. This technology allows for the detection of transverse and longitudinal defects in heavy wall material. MAC recently installed a flux leakage system for inspecting complex automotive tube with varying wall thicknesses within the cut lengths.

Ultrasonic Rotary For internal defects, wall thickness, and inside diameter measurement, the Ultrasonic Echomac FD5 electronics may be used.

Custom systems including a combination of eddy current, ultrasonic, and/or flux leakage technologies may also be designed by MAC for special parts and conditions.

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ULTRASONIC Echomac® Test Systems

Ultrasonic Instrumentation for Surface and Internal Flaw Detection and ID, OD and Wall Thickness Measurement

ECHOMAC® FD-5 INSTRUMENTATION • FD-5 instruments can be configured with up to 32 simultaneously synchronized channels • Operates with longitudinal or shear waves • Pulse Echo or Through Transmission • User configured flaw detection or thickness gauging for each channel • Adjustable pulse firing sequence to avoid crosstalk in multi-channel applications • Sixteen-segment distance-amplitude correction (DAC) • Summary reports can be generated for each production run • Full network support for remote viewing and control Echomac FD5 - UT Instrumentation Setup Display The new Echomac FD-5 is now available in a cabinet with rack mount display and slide out keyboard. The A-Scan screen, shown above, displays detection of an OD surface notch using shear waves that also detect ID defects. The horizontal bars indicate gate thresholds. The strip chart display in the lower portion of the screen, shows the peak amplitude of the signal within the gate.

MAC’s proprietary software controls the instrumentation, displays setup parameters and simultaneous A-scan and strip chart for all channels. The software also features four independent flaw gates in each channel. The FD Series can be used with rotary, immersion, squirter, bubbler or other types of ultrasonic systems. Older UT instruments can be upgraded without replacing transducers. Typical Applications • • • •

Demanding tests for surface, subsurface and internal defects in bar, billets, wire and plate Sophisticated test for ID and OD defects, ID and OD diameter, and wall thickness in tube and pipe Inspect hex, square or round bar stock for internal flaws that are not detectable with eddy current Examples include Oil Country Tubular Goods, Heat Exchanger Tube, Hydraulic Boiler Tube, Umbilical Tube, and Special Quality Bars

MAC ULTRASONIC ROTARY The ECHOMAC UT rotary provides ultrasonic inspection at high throughput speeds. Rotating transducers are available for shear wave configuration (surface and subsurface defects) and compression-wave configuration (internal defects and dimensional measurements such as wall thickness). Standard models are available for inspecting material from 1/4” to 14” (6.35mm to 360mm) in diameter at test speeds up to 400 fpm, depending on the size and condition of the material.

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MAGNETIC FLUX LEAKAGE Rotoflux® Test Systems

ROTOFLUX® INSTRUMENTATION The Rotoflux multiplex electronics, include 24 separate channels for longitudinal and up to 48 channels for transverse systems. Sensitivity, filters, and thresholds for each probe are set through on-screen menus, and related parameters are set with a mouse and keyboard. The software operates on a Windows® platform to store setups and results. Setup of flawtrack output delay, applicable to any of six outputs, and end suppression is also controlled by software. The flat screen presentation includes separate ID and OD displays of the signals from all channels. The strip chart The signal shown in the Test Screen above is from a natural ID display shows the maximum ID and OD signals from any of the crack on a 13” (330 mm) diameter cast iron pipe. channels during an operator preset specified period of time, in milliseconds. Each channel can be viewed independently with zoom-in capability in the Multi-Screen display. Thresholds for OD and ID channels can be adjusted independently.

Magnetic Flux Leakage Testers to Detect Transverse & Longitudinal Flaws in Heavy Wall Magnetic Tube

LONGITUDINAL ROTOFLUX® ROTARY To detect longitudinal defects, the material under test is driven through a rotating headplate which includes magnetizing coils and test probes. Transverse magnetism is used to find longitudinal defects such as seams, laps, and weld line defects. A special mode of operation can be selected to suppress signals for acceptable welds in welded steel tube. The Rotoflux rotary head is usually mounted on a slide and elevate mechanism. This mechanism allows the housing to be positioned correctly with respect to the test material, or moved away from the drives for convenient access during calibration, servicing, or changing pole sizes. Longitudinal Rotary

TRANSVERSE ROTOFLUX® ROTARY To detect transverse defects, the magnetizing poles are placed in a fixed position perpendicular to the axis of the material under test. The material passes through this magnetic field and flux leakage signals generated by transverse defects are detected by rotating sensors. By using the transverse defect detection capability and the longitudinal detection capability, tube producers have the technology to comply with API and ASTM requirements such as API 5L and ASTM E570.

Transverse Rotary

Typical Applications • Heavy-wall tubes used in OCTG and other oil and gas applications • Examples include Drill Pipe, Casing, Sucker Rods, Umbilical Coils, and Coupling stock Present systems detect longitudinal and transverse defects as small as 5% on OD and ID, depending on material type and condition in tube, 2” (50mm) up to 16” (406mm) diameter and 3/4” (19mm) wall. Electronics can also detect ID, mid-wall, and OD defects in magnetic parts. 11 3

EDDY CURRENT Eddy Current Inspection Systems

Eddy Current Inspection Systems to detect transverse, non-continuous, and longitudinal, seam-type flaws MAC eddy current inspection systems integrate computer based test instruments; test sensor coils or probes; coil platforms or rotaries; and other mechanical handling and controls to ensure the best test for your product.

MULTIMAC® Multi Channel Tester for use with Encircling/Sector Coils or Rotary Test Probes The versatile MultiMac® is the solution for applications requiring detection of transverse, non-continuous and/or longitudinal, seam-type surface defects. Features include up to 8 test channels in any combination, a broad test frequency selection from 1KHz to 5MHz, and a superior graphical interface. The instrument is a high speed, industrial quality computer with Windows® Operating System and MAC’s proprietary software. MultiMac can operate on a wide range of non-magnetic products, or use magnet coils or direct current saturation to inspect magnetic material. End suppression circuitry, when combined with an optional sensor, can be used to prevent false signals from leading and trailing ends in cut length material. The MultiMac SM (shown above) and AC are also available as 2 channel instruments .

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MAC 400

MINIMAC® MAC 40

Multi Channel Tester for use with Encircling/Sector Coils The multi frequency MAC 400 provides up to 4 independent test channels for detecting transverse, non-continuous defects. It can take multiple encoder inputs to allow one tester to be connected to multiple test lines. Windows® based, test results and settings are displayed in large on-screen windows on an optional monitor. Easy to use “drag and drop” setting capability on a touch screen with pen, mouse, or keyboard entry; fully networkable.

Economic Single Channel Dedicated Application Tester Designed for continuous production testing where simple setup, without critical operator adjustment, is desired. Selective circuits include phasing, filtering, sensitivity and frequency. Test data can be saved, transferred, and printed using an optional monitor and keyboard. Networkable, the Minimac inspects magnetic and non-magnetic tube, wire and bar stock at speeds up to 4000 fpm.

EDDY CURRENT Test Coils & Rotary Probes

Selecting the Appropriate Test Sensors Eddy current test sensors interact with material under test to provide data which is processed by the instrument. Two primary types of eddy current sensors are encircling/sector coils, and rotary test probes.

ENCIRCLING OR SECTOR TEST COIL TECHNOLOGY In encircling/sector coil technology, the product under test passes through or adjacent to an electrical test coil which has been excited by an alternating current. This induces a flow of eddy currents around the test material, or, in the case of a sector coil, in the area under the coil. Short, intermittent anomalies or flaws cause a variation in the eddy current pattern which the instrument detects. Absolute, differential, or combinations of both coils are available.

354 Tangent Coil Platform for Testing Welded Tube

ROTARY PROBE TECHNOLOGY In rotary probe technology, the product under test moves longitudinally through the rotating test probes resulting in a helical search pattern. As the probe passes over a defect, variations in the induced eddy current pattern are detected. The minimum flaw length which can be consistently detected is a function of the rotary speed, size, and spacing of the probe and the throughput speed of the material.

Eddy Current Rotary for bar testing

Current MAC rotaries feature continuously variable high speed rotaries (1800 - 6000 RPM), and multi-probe headplates to detect shorter defects without sacrificing throughput speed. Similar results can be obtained by holding the test probe stationary and rotating the material past the probe. Rotary testing is the method of choice for detecting seam type surface defects in non-magnetic and magnetic grades of wire and bar. MAC has rotary mechanics for up to 180mm diameter material.

Typical Applications Encircling/Sector Test Technology • Detect short surface and some subsurface defects, on or off-line, in magnetic and non-magnetic wire, bar and tube • Inspect welded tube for short ID or OD defects in the weld zone or on the full circumference • Test uniform cross sectional material, including squares, rectangles, hex and round • Inspect small diameter wire or tube for short defects • Check continuity and locate welds in single and multi-conductor insulated wire and cable Rotary Probe Test Technology • Detect seam type surface defects in cold drawn wire or cut length bar stock • Inspect in-line with continuous wire operations such as wire drawing, parts forming, re-spooling, or straight and cut • Inspect cut lengths, usually off-line • Test parts, such as small shafts and bearings for longitudinal surface defects

65mm Coil Platform, to be used with encircling or segmented eddy current applications, uses an electromagnet to saturate the material.

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MATERIAL HANDLING Magnetic Analysis Corporation

Modular Feed Systems MAC offers custom design feed and handling systems for many specific applications, including for material up to 14” diameter. These systems can include conductor controls to allow complete command of the test bench, multiple test instruments and pinches. Extensive input/output configurations can be handled by programmable logic controllers (PLC).

“V” ROLL TEST BENCH

TRIPLE GUIDE ROLL TEST BENCH

MAC’s standard test bench utilizes 120 degree “V” rolls and pinch stands to support and position the test material. The fixed bottom “V” rolls, in conjunction with a flat top roll, provide 3 points of contact and ensure firm support for the test material, eliminating vibration that can cause false indications.

A constant center triple guide roll bench is another option for mounting the various mechanical components for MAC test systems. The bench eliminates vibrations from the test material that can cause false reject signals.

Automated or manual controls adjust the position of the ”V” rolls to the size of the test material. Drive Mechanisms provide forward movement of the test material through the coil platforms and rotary mechanics where needed. Individual elevating platforms are usually included on the test bench for positioning larger rotary mechanics. 90 degree rolls are also available for square material. Auto diameter controls are available to automate adjustments of the testers and drives when the test material diameter is changed.

COIL PLATFORMS & DRIVES Mechanisms to precisely hold and position test instruments, test coils or probes, and drive the product through the test, are essential for accurate, consistent test results. MAC offers a wide range of coil platforms, drives, elevating platforms, and other accessories. 2 14

A triple is mounted between each test station on the bench. Each triple uses three hardened steel rolls driven by a separate AC motor to center the test material. A frequency converter controls the AC motors to guarantee equal speed for all of the rolls. Slide mechanisms are available to allow access to test heads for off-line setup and maintenance. The entire bench can be adjusted up and down to align the test coils and heads with the level of the incoming test material. Adjusting the bench height and the opening of the triple pinches for Triple bench with a slide and elevate changes in test mechanism for an ultrasonic rotary. material dimension is accomplished automatically through the Conductor controls. Constant center benches are particularly useful when testing products such as tubes with badly formed ends, upset pipe or difficult straightening applications.

OVERVIEW Magnetic Analysis Corporation

TIP A- ELECTROMAGNETIC PRINCIPLES LEVEL I OR II TRAINING

ULTRASONIC LEVEL I OR II TRAINING

These courses are offered at MAC NY twice annually and at the client’s facility*. A certificate is given upon completion to be applied towards ASNT qualifications.

These courses are offered at the client's facility* and may be offered at MAC NY if appropriate requirements are met.

Topics include:

Topics include:

• • • • • • • • • • • • • • •

Electromagnetic Theory Eddy Current Theory for Non-Magnetic Material Eddy Current Theory for Magnetic Material Flaw Detection Principles Selectivity Means Application of Testing Principles Encircling Coil Types of Flaw Inspection Coils and Probes† Sorting Equipment - Design Sorting Equipment - Applications Rotary Probe Flaw Inspection† Readout Devices Auxiliary Equipment Hands-On Electronics Laboratory Experiments

• • • • • • •

Introduction To Ultrasonic Testing Basic Principles Of Acoustics Transducer Operation And Theory Ultrasonic Testing Equipment Basic Ultrasonic Testing Methods Hands On FD5 Instrumentation† Hands On UT Rotary†

*Size and attendance requirements must be met †These courses are based on NDT equipments specifically designed and manufactured by Magnetic Analysis Corporation.

For additional information or to request course attendance, please visit the Contact Us page and fill out a form or send an email to [email protected].

EQUIPMENT- REFERENCE GUIDE Eddy Current EC Coil & Rotary Operations: Varimac (EC Comparator) & Coils Production Comparator (electromagnetic) & Coils MultiMac Electronics (8 Channels), Coils & Rotary MultiMac SM or AC Electronics (2 Channels) Minimac MAC 40 Electronics (Single Channel) MAC 400 Electronics (4 Channels) Rotomac BQ Electronics (2 Channel)

Flux Leakage MFL Transverse & Longitudinal Rotary Operations: Rotoflux TRFX & LRFX Electronics & Rotaries MAC’s “V” Roll Test Bench with automatic paint spray markers (far left), protective shields over the rolls, a slide an elevate mechanism for an ultrasonic 360mm rotary (towards center), along with additional roll sections to accommodate a transverse and longitudinal flux leakage rotaries on individual slide and elevate mechanisms. This system is designed to inspect heavy-wall, magnetic OCTG to API specifications.

Ultrasonic UT Rotary Operations: FD5 Electronics (32 Channels) Echomac Rotary (up to 14.2”/ 360mm OD)

AUTOSORT, ECHOMAC, MAC, MINIMAC, MULTIMAC, PROMAC, ROTOFLUX, ROTOMAC, VARIMAC and ECHOHUNTER are registered trademarks of Magnetic Analysis Corporation. Windows is a registered trademark of Microsoft Corporation.

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NDT of Tube - Bar - Wire - Parts WORLDWIDE CONTACTS:

REPRESENTATIVES:

Germany, Austria & Scandinavia: France: Italy & Eastern Europe: United Kingdom, Ireland & Spain: China: Australia-Asia Pacific:

+46 63 51 77 20 +33 327 666359 +39 348 4458584 +44 115 9303690 +86 21 62360955 +61 02 96316580

Argentina Brazil Chile India Korea Mexico

Russia South Africa Spain Thailand Turkey Ukraine

www.mac-ndt.com [email protected] PLANTS: Elmsford New York - USA Boardman Ohio - USA MA Nordic Östersund - Sweden

SUBSIDIARIES: Magnetic Analysis Australia Pty. Ltd. – Sydney, Australia Magnetic Analysis Italia. S.r.l. – Milan, Italy

Magnetic Analysis Ltd. – Derby, UK Magnetic Analysis Nordic, AB – Östersund, Sweden

MAC CORPORATE HEADQUARTERS: Magnetic Analysis Corporation 103 Fairview Park Drive Elmsford, NY 10523-1544 USA Tel: 914-530-2000 Fax:914-703-3790

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