Under normal circumstances, the magnetic strength of a Circular magnet will not weaken over time. The magnetic force of a magnet is determined by its molecular structure. Under normal use and storage conditions, this molecular structure is relatively stable.
However, there are a few factors that can cause magnetism to weaken:
Temperature effect: High temperature will have an impact on magnets, which may cause changes in the molecular structure, thereby weakening the magnetism.
External magnetic field interference: In an environment with a strong magnetic field, the magnet may be temporarily affected by the external magnetic field and become weak. Once removed from a strong magnetic field environment, the magnet's magnetic force should return to normal levels.
Physical damage: If a magnet is hit or collided with a strong force, it may cause damage to its internal molecular structure, thereby weakening the magnetic force.
It should be noted that the above factors may have a temporary or permanent impact on the magnet's magnetic force. Under normal use and storage conditions, the magnetic force of a Circular magnet should be relatively stable and last for a long time. If necessary, the magnetic strength can be measured regularly to ensure its working effectiveness.
