🧲 MAGNETIC PARTICLE TESTING (MPT) – DETAILED SERVICE PAGE

Magnetic Particle Testing (MPT) Services in India

Magnetic Particle Testing (MPT) is a non-destructive testing method used to detect surface and near-surface defects in ferromagnetic materials. It is especially effective for identifying cracks and discontinuities that may not be visible to the naked eye.

Jagdamba Technology provides MPT services for welded joints, forgings, castings, shafts, and structural components, ensuring defect-free surfaces before commissioning or service.

Principle of Magnetic Particle Testing

MPT works on the principle of magnetic flux leakage.
When a magnetic field is applied to a ferromagnetic material:

• Discontinuities interrupt the magnetic field

• Magnetic particles gather at the defect location

• Visible indications form, showing defect size and shape

How Magnetic Particle Testing is Performed

1. Surface Cleaning
   Surface is cleaned to remove oil, grease, or scale.

2. Magnetization
   The component is magnetized using AC or DC magnetic yokes.

3. Application of Magnetic Particles
   Dry or wet magnetic particles are applied to the surface.

4. Inspection & Evaluation
   Particle indications are visually examined under adequate lighting.

5. Demagnetization (if required)
   Component is demagnetized after inspection.

Types of Magnetic Particle Testing

• Dry Magnetic Particle Testing

• Wet Magnetic Particle Testing

• AC Yoke Testing

• DC Yoke Testing

Defects Detected by MPT

• Surface cracks

• Fatigue cracks

• Welding cracks

• Seams and laps

• Lack of fusion at surface

Applications of Magnetic Particle Testing

• Weld inspection

• Forgings and castings

• Shafts and pins

• Structural steel components

Equipment Used for MPT

• AC / DC magnetic yokes

• Dry magnetic powders

• Wet fluorescent particles

• Field strength indicators

Advantages of Magnetic Particle Testing

• Highly sensitive to surface defects

• Fast inspection method

• Simple and cost-effective

• Immediate visual results

Why Choose Jagdamba Technology for MPT Services

• Trained inspection personnel

• Proper magnetization techniques

• Clear defect interpretation

• Reliable inspection reporting