Magnetic Particle Testing (MPT) is a widely employed non-destructive testing method in Delhi NCR, primarily used to detect surface and near-surface defects in ferromagnetic materials such as iron, nickel, cobalt, and their alloys. This technique is especially effective for identifying cracks and other discontinuities in materials where structural integrity is critical. MPT works by magnetizing the test sample, either locally or across the entire component. When a surface-breaking defect is present, it distorts the magnetic field within the material, resulting in flux leakage around the defect.
These particles are drawn to the areas of flux leakage and accumulate, creating a clear visual indication of the defect’s location and size. The simplicity and reliability of MPT make it an indispensable tool for industries such as construction, automotive, and manufacturing, ensuring the safety and durability of critical components.
Magnetic Particle Testing (MPT) is a non-destructive testing method used to detect surface and near-surface defects in ferromagnetic materials like iron, steel, nickel, and cobalt. It works by applying a magnetic field to the material and using iron particles to reveal any disruptions in the magnetic flux caused by defects.
MPT is specifically designed for use on ferromagnetic materials, including iron, steel, nickel, cobalt, and some of their alloys. It is not suitable for non-magnetic materials like aluminum or copper.
MPT is highly effective in detecting surface-breaking defects such as cracks, seams, voids, laps, and inclusions. It is particularly useful in identifying defects that are invisible to the naked eye but can affect the material’s structural integrity.
The process involves magnetizing the material, either locally or overall. If there is a surface-breaking defect, it causes a distortion in the magnetic field, resulting in flux leakage. Fine iron particles (either dry or suspended in a liquid) are applied to the surface, and they accumulate at the areas of flux leakage, making the defect visible to the inspector.
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