Magnetic Particle Inspection
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Magnetic Particle Inspection
Magnetic Particle Inspection (MPI) is a technique for detecting surface and near-surface faults in ferromagnetic materials such as steel and iron. It is typically used for fracture identification.
Magnetic particle testing uses a magnet or specific magnetizing equipment to magnetize a ferromagnetic specimen. If the specimen has a discontinuity, the magnetic field passing through it is disrupted, resulting in a leakage field. The specimen is treated with finely milled iron particles covered with a dye pigment. These are drawn to leakage fields and create a cluster to form a direct indicator over the discontinuity. Under suitable lighting circumstances, the indication is visible.
The fundamental process for doing magnetic particle testing consists of the following steps:
- Pre-cleaning of component
- Introduction of Magnetic field
- Application of magnetic media
- Interpretation of magnetic particle indications our experienced and qualified NDT inspector
Pasada Global utilizes more than 5 NDT technicians that have achieved SNT Level II certification in Magnetic Particle Testing (MI) in accordance with SNT-TC-1A. Every one of our MPI inspection engineers has at least one NDT qualification.