MAGNETIC PARTICLE TESTING ACCESSORIES
CONTACT PADS - BRAIDED COPPER
1510-01 180 x 120 - 4 HOLES - FOLDED
SUITS ALL LMX BENCHES WITH PNEUMATIC CLAMPING
1510-01R 180 x 120 - 4 HOLES
2 LAYERS BRAID PLUS NEOPRENE INSERT ( STD PAD )
1510-02 191 x 120 - 4 HOLES
SUITS MAGNAFLUX BENCH ( EQUIV. MX PART No. 1848 )
1510-05 220 x 125 - 6 HOLES
1510-08 175 x 140 - 2 HOLES SUITS MOST LECTROFLUX MACHINES
1510-14 225 x 16 - 2 HOLES - SUITS MM4000 & LECTROMAX 4000 – 11
1510-15A 145 x 120 - NO HOLES - FOLDED
SUITS MANUAL CLAMP SYSTEM FACE PLATES
1510-15B 200 x 28 - 2 HOLES
SUITS MANUAL CLAMP SYSTEM TRANSFER BRAID
1510-16 74 x 30 - 2 HOLES - FOLDED
SUITS SMALL PARTS FIXTURE
1510-17 180 x 120 - 4 HOLES - FOLDED SUITS LMX 3000-03 BENCHES WITH PNEUMATIC CLAMPING
Rubber Magnetic Particle Powder Applicator
CALIBRATED FIELD INDICATOR
Offers highly accurate measurement
of residual leakage field in parts
Accurate to ± 0.3 Gauss
Scale Range of 10 – 0 - 10 OR 20 - 0 - 20 OR 50 - 0 - 50
Flux Indicator Strips
UN-CALIBRATED FIELD INDICATOR
Rugged, Pocket-Size Meter
used to indicate residual magnetism
remaining in part after demagnetisation
Inexpensive disposable unit
Magnaflux Part No. 2480
Lectromax Part No. MX 1562
Flexible indicators used to detect appropriate levels of magnetic field strength and directional orientation during the magnetic particle testing process.
ASME Magnetic Particle Field Indicator (Pie Gauge)
The pie gage is a disk of highly permeable material divided into four, six, or eight sections by non ferromagnetic material. The divisions serve as artificial defects that radiate out in different directions from the center. The diameter of the gage is 3/4 to 1 inch. The divisions between the low carbon steel pie sections are to be no greater than 1/32 inch.
The sections are furnace brazed and copper plated. The gage is placed on the test piece copper side up and the test piece is magnetized. After particles are applied and the excess removed, the indications provide the inspector the orientation of the magnetic field.
Ketos Ring Steel Test Block
Ketos ring is made from ANSI ‘Ketos’ tool steel and has been machined to the sizes given in ASTM E1444-11.
The ring has, after demagnetising, been magnetised by a current of 3950 peak amperes and has shown ‘7’ subsurface discontinuities. The 3950 peak ampere is equivalent to 1500 amperes average and therefore exceeds the requirements of ASTM E1444-11.
Each indicator contains three milled slots with widths of .0075", .009" and .010" that share a common depth.
The indicators are manufactured from permeable magnetic steel sandwiched between two brass plates and designed for repeated use in setting and monitoring magnetic field strength in wet and dry MPI applications.
(In accordance with AS3912.1, ANSI/NCSL-Z540-3, ISO10012-1, BS667 and ASTM E1444-11)
MAGNACHECK - TANGENIAL FEILD STRENGTH METER
Centrifuge Stand and Tube
The concentration of particles in the suspension is a very important parameter in the inspection process and must be closely controlled. The particle concentration is checked after the suspension is prepared and regularly monitored as part of the quality system checks. ASTM E-1444-01 requires concentration checks to be performed every eight hours or at ever shift change.
The standard process used to perform the check requires agitating the carrier for a minimum of thirty minutes to ensure even particle distribution. A sample is then taken in a pear-shaped 100 ml centrifuge tube having a stem graduated to 1.0 ml in 0.05 ml increments for fluorescent particles, and graduated to 1.5 ml. in 0.1 ml increments for visible particles. The sample is then demagnetized so that the particles do not clump together while settling. The sample must then remain undisturbed for a minimum of 60 minutes for a petroleum-based carrier or 30 minutes for a water-based carrier, unless shorter times have been documented to produce results similar to the longer settling times. The volume of settled particles is then read. Acceptable ranges are 0.1 to 0.4 ml for fluorescent particles and 1.2 to 2.4 ml for visible particles. If the particle concentration is out of the acceptable range, particles or the carrier must be added to bring the solution back in compliance with the requirement
Yoke Test Weights
AS1171-1998 Requires Permanent magnets and D.C electromagnets Unless otherwise specified, permanent magnets and D.C electromagnets (d.c. yokes) shall be capable of lifting not less than 18 kg of mild steel at a pole spacing of between 75 mm and 300 mm.
AC electromagnets Unless otherwise specified, a.c. electromagnets (a.c. yokes) shall be capable of lifting not less than 4.5 kg of mild steel at a pole spacing of between 75 mm and 300 mm.
Standard Test Bar ( AS1171)
The AS 1171 Figure B2 steel bar test piece is used by many accredited NDT facilities as a means of checking overall magnetic particle testing system performance. However, there is a difference of opinion as to the test bar’s applicability to assessment of system performance of the magnetic flow method using a yoke electromagnet. It is possible for a facility to stipulate within their documented internal procedure an alternative means for checking the overall system performance (for yoke applications) by specifying a test piece other than the Figure B2 test bar. However, the Figure B2 test bar involves the use of a slightly subsurface flaw to increase difficulty of detection, thus providing a worthwhile check on a range of factors including magnetic field strength, consumable function, operator technique, visual acuity & lighting conditions.
These copper rods provide circular magnetisation of hollow parts. Different sizes are available
To maintain product quality it is important that every aspect of an inspection system is monitored regularly. ln particular the performance of an MPI system is dependent on a number of parameters, each of which must be within acceptable procedural limits. Where magnetizing equipment is fitted with a timer to control shot duration, it must be calibrated on a regular basis, usually to an accuracy within +_ 0.1sec.
Digital Current Test Set
The LECTROMAX Digital Current Test Set is specifically designed to check the accuracy of ammeter systems fitted to magnetic particle inspection equipment. It will display the peak current of an AC, HWDC or FWDC waveform, from 100 to 9990 amperes in 10 amp steps.
Accuracy is within ±1% over the range of 1000 - 9990 amps, and ±10 amps below 1000 amps.
Calibration accuracy is traceable to NATA approved laboratory standards. A Calibration Certificate is appended.
Quantitative Quality Indicator (QQI)
The Quantitative Quality Indicator (QQI) or Artificial Flaw Standard is often the preferred method of assuring proper field direction and adequate field strength. The use of a QQI is also the only practical way of ensuring balanced field intensity and direction in multiple-direction magnetization equipment. QQIs are often used in conjunction with a Gauss meter to establish the inspection procedure for a particular component. They are used with the wet method only, and like other flux sharing devices, can only be used with continuous magnetization.
The QQI is a thin strip of either 0.002 or 0.004 inch thick AISI 1005 steel. A photoetch process is used to inscribe a specific pattern, such as concentric circles or a plus sign. QQIs are nominally 3/4 inch square, but miniature shims are also available. QQIs must be in intimate contact with the part being evaluated. This is accomplished by placing the shim on a part etched side down, and taping or gluing it to the surface. The component is then magnetized and particles applied. When the field strength is adequate, the particles will adhere over the engraved pattern and provide information about the field direction. When a multidirectional technique is used, a balance of the fields is noted when all areas of the QQI produce indications.
Some of the advantages of QQIs are: they can be quantified and related to other parameters, they can accommodate virtually any configuration with suitable selection, and they can be reused with careful application and removal practices. Some of the disadvantages are: the application process is somewhat slow, the parts must be clean and dry, shims cannot be used as a residual magnetism indicator as they are a flux sharing device, they can be easily damaged with improper handling, and they will corrode if not cleaned and properly stored.
TYPE KSC – 230 ( MAGNAFLUX P/No. 519630 )
TYPE KSC - 4 - 230 ( MAGNAFLUX P/No. 519631 )
TYPE KSCT - 234 ( MAGNAFLUX P/No. 519632 )
TYPE KSC - 430 ( MAGNAFLUX P/No. 521048 )
TYPE KSC - 4 - 234 ( MAGNAFLUX P/No. 521049 )