What Factors Affect the Performance of Magnetic Couplings?
- Temperature
Magnets are prone to demagnetization in high-temperature environments. High temperatures disrupt the ordered arrangement within the magnetic field, leading to field disorder.
- Vibration and Impact
Magnets may also demagnetize under high-frequency vibration or impact. Violent vibration and impact destroy the ordered arrangement in the magnetic field, causing disorder and demagnetization.
- External Magnetic Field
Magnetic steel may demagnetize when exposed to strong external magnetic fields, as the strong field can counteract the steel's inherent magnetism.
- Eddy Currents
During operation, the rotating isolation sleeve between the inner and outer rotors of a permanent magnetic coupling cuts magnetic field lines. Since the isolation sleeve is mostly made of metal, eddy currents are easily induced, forming a closed loop on the sleeve's surface and causing eddy current loss.
