Magnetic Particle Testing
The magnetic field can be introduced into the test specimen by either direct or indirect magnetization. Direct magnetization occurs when the electric current is passed through the test object and a magnetic field is formed in the material. Indirect occurs when no current is passed through the test specimen, but a magnetic field is applied from the outside source. When the magnetic field is disturbed by surface or near-surface discontinuities the magnetic powder forms around an indication which can be seen quite clearly.
● Wet continuous method by AC/DC Yoke
● Wet continuous method by Permanent Magnet
● Fluorescent Magnetic Particles Inspections
● MPI by Dry Powder Technique
Magnetic Particle Testing (MT)
Surface Defect Detection
MT is a non-destructive method that identifies surface and near-surface flaws in ferromagnetic materials using magnetic fields and particles.
Wet Fluorescent Magnetic Particle Testing (WFMT)
Enhanced Flaw Visualization
After excess dye removal, a white developer is applied. A 15-minute wait reveals flaws as colored indications against the white background.