NdFeB Magnet-Permanent Magnet-Magnetic Stability-Kariqi

Three basic common sense of NdFeB magnets. General electroplating products will undergo a smoke test to detect the quality of the electroplating layer before they are sold. When the electroplated products are stored in a harsh environment, the base layer will further react with condensation water, which will cause the base layer to The bonding force of the coating is reduced, and in severe cases, it may cause partial powdering of the base, leading to natural peeling. Electroplated products should not be placed in places with high humidity for long periods of time and should be placed in a cool, dry place. The product box should not touch the ground. If the electroplating layer meets the above storage conditions, there will generally be no problem within a month.
How long can the magnetic properties of NdFeB magnets last?
NdFeB magnets are known as permanent magnets with very high coercive force and stable magnetic force. Demagnetization and magnetic changes will not occur under natural environment and general magnetic field conditions. Assuming the environment is appropriate, the magnet's magnetic performance will not lose much even after long-term use. Therefore, in practical applications, we often ignore the impact of time factors on magnetic properties.
What are the main factors that affect the magnetic force of NdFeB magnets?
Environmental temperature. Since sintered NdFeB is extremely sensitive to the operating temperature, the instantaneous maximum temperature and the sustained maximum temperature of the environment may cause varying degrees of damage to the magnet. Demagnetization, including reversible and irreversible, recoverable and non-recoverable.
What is the reason for rust spots and peeling of surface coating on magnets?
The material of NdFeB itself is NdFeB. The proportion of iron in it is so high that when it is too humid and the air circulation is poor and the temperature difference changes greatly, even products that have passed the salt spray test may develop rust spots if they are stored in harsh environments for a long time. Generally, in order to prevent rust spots on magnets, most products use electroplating! For qualified electroplated products, under normal circumstances, the electroplated coating should not have rust spots.
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