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Cause analysis of demagnetization of magnetic coupling

Cause analysis of demagnetization of magnetic coupling

(Summary description)Magnetic coupling is a relatively new type of coupling, and demagnetization is a relatively easy cause of damage. Once demagnetization occurs, many people may be at a loss and may cause a lot of work and production losses. In order to avoid this situation, today I will briefly explain why the magnetic coupling is demagnetized during use...

Cause analysis of demagnetization of magnetic coupling

(Summary description)Magnetic coupling is a relatively new type of coupling, and demagnetization is a relatively easy cause of damage. Once demagnetization occurs, many people may be at a loss and may cause a lot of work and production losses. In order to avoid this situation, today I will briefly explain why the magnetic coupling is demagnetized during use...

Information

  Magnetic coupling is a relatively new type of coupling, and demagnetization is a relatively easy cause of damage. Once demagnetization occurs, many people may be at a loss and may cause a lot of work and production losses. In order to avoid this situation, today I will briefly explain why the magnetic coupling is demagnetized during use.

  Too high temperature and dry rotation of the magnetic linkage are the direct factors that cause degaussing. If the temperature is too high, there are many reasons. If the flow rate is too small for a long time or the outlet valve is closed for too long during operation, the temperature of the internal medium of the pump will increase, and the lubrication of the pump's bearings will become worse, and the temperature will be higher. The sleeve will be damaged if it takes a long time.

  Other reasons for degaussing:

  1. Dirt blocking the internal cooling/lubrication pipeline will cause the temperature of the internal and external magnetic cylinders to rise rapidly, and there is a possibility of loss of magnetism;
    2. Do not pay attention to cleaning during maintenance, and iron filings are adsorbed on the internal magnet, causing the isolation sleeve to wear through;
    3. The axial gap between the inner rotor and the spacer sleeve is too small, causing friction and loss of magnetism.
  4. The thrust bearing is worn, causing friction between the inner rotor and the isolating sleeve

  The magnetic pump cannot run for a long time under certain working conditions, such as pumping down, cavitation, high temperature, etc. Therefore, it is necessary to pay attention to avoid all occurrences of the pump idling and the temperature is too high.

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