What equipment is used in magnetic particle inspection?

What equipment is used in magnetic particle inspection?

The MPI test bar is a standardized test piece that can be used with wet bench magnetic particle equipment, power pack coil wraps, or magnetic yokes. The test bar has both surface and sub-surface flaws for use with AC, HWDC, FWDC, and 3-phase FWDC magnetizing equipment.

What is MPI machine?

Magnetic Particle Inspection (MPI) is a non-destructive testing method that can detect surface and subsurface flaws in ferromagnetic materials. The method can detect surface or near-surface flaws such as cracks, laps, seams and inclusions in ferromagnetic materials such as iron and steel.

What are the methods of magnetic particle inspection?

In magnetic particle inspection, circular magnetization is used to detect lengthwise cracks. passed through the part or through an electrical conductor within the part. The circular magnetic field cutting across the crack attracts and holds iron powder, to indicate the invisible defects.

What is MPI test in welding?

Magnetic particle inspection (MPI) is one of the most widely used non-destructive testing methods for identifying both surface and near sub-subsurface defects on ferromagnetic pipe and pipe welds. After a magnetic field is introduced into the object, iron fillings are dusted onto the surface to be tested.

How MPI is used to inspect the crack?

Magnetic particle inspection is a simple NDI method used to detect cracks at the surface of ferromagnetic materials such as steels and nickel-based alloys. The inspection process begins with the magnetisation of the component. The magnetic particles are attracted to the flux leakage and thereby cluster at the crack.

What are the two method of application of magnetic particles?

Two of the most-used methods are the stationary horizontal system, using longitudinal and circular magnetization techniques, and the very portable yoke technique. tudinal and circular magnetization using wet fluorescent particles.

What does MPI stand for?


Acronym Definition
MPI Magnetic Particle (Powder) Inspection
MPI Master Patient Index (health care)
MPI Management and Policy Institute (Japan)
MPI Milk Producers, Inc. (est. 1967)

What are the two methods of application of magnetic particles?

What is magnetic particle method?

The magnetic particle test method of Non-Destructive Examination was developed in the USA, in the 1930s, as a way to check steel components on production lines. The principle of the method is that the specimen is magnetised to produce magnetic lines of force, or flux, in the material.

How do you test MPI?

Magnetic Particle Inspection is performed in four steps:

  1. Induce a magnetic field in the specimen.
  2. Apply magnetic particles to the specimen’s surface.
  3. View the surface, looking for particle groupings that are caused by defects.
  4. Demagnetize and clean the specimen.

What is the principle of MPI?

The principle of the method is that the specimen is magnetised to produce magnetic lines of force, or flux, in the material. If these lines of force meet a discontinuity, such as a crack, secondary magnetic poles are created at the faces of the crack.

What kind of equipment is used for magnetic particle inspection?

Magnetic Particle Inspection Equipment. Magnaflux magnetic particle inspection (MPI) testing equipment is designed to be fast, reliable and high-value. Versatile and durable for industrial environments, Magnaflux wet benches, magnetic yoke and power pack come in a range of outputs, including AC, half-wave DC and full-wave DC.

How does a universal magnetic particle test work?

These Universal Magnetic Particle Testing units can be used as a conventional tester as well as a ā€œ3-Dā€ (Multi-functional) unit, with AC, HWDC (Models with 6,000 amp output or less) & FWDC Magnetization and decaying AC and/or Reversing DC Demag.The Contact position provides a circular field of Magnetization.

How is regular upkeep on Mag particle equipment critical?

Read how regular upkeep on mag particle equipment is critical for non-destructive testing to safe guard inspections & reduce downtime. How perception and vision can have a significant impact on probability of detection in non-destructive testing inspections.

What is the Y-2 magnetic particle inspection yoke?

The Y-2 is an AC electromagnetic yoke for magnetic particle inspection that improves inspector productivity through a lightweight, ergonomic design. The Y-2 is the next generation of hand-held yokes that is more robust to survive harsh environments better than its predecessors.