Magnetic Particle Test

This method is used for detection of cracks on or just below the surface of ferrous metal. A magnetic flux is sent through the metal. At the location of the discontinuities a leakage field is achieved. During this sprayed onto the surface metal iron dust attracted. The length of the imperfection can be determined very reliable.

This method can be applied day and night time depends on work pieces applicable. These methods named by contrast and florescent test type. Florescent particles can be used when maximum sensitivity is required.