
This unit is composed of magnetic particle suspension spraying equipment, magnetizing equipment, magnetizing power source, inspection room, etc.
There are two types of magnetizing method, one is to pass electric current directly to the workpiece to be inspected, and the other is to magnetize the workpiece by non-contact magnet.
Two types of Magnetic Particle are used in MPT. Those are Fluorescent Magnetic Particle and Non-fluorescent Magnetic Particle.
Magnetic particle testing process is usually "Pre-cleaning" - "Magnetization" - "Applying magnetic particle" - "Observation" - "Post-cleaning".