Care and maintenance of various magnets

A magnet is like a person. Some people don't like heat, while others don't like cold. Some are very strong, while others are prone to problems. Some people are more dangerous than others.
This may seem like a lot to remember, but handling and storing magnets appropriately is the best way to ensure optimal and long-lasting magnetization. Here are some best practices to help you maximize your magnet performance.
Permanent magnet
When handling permanent magnets, always consider safety first. This means wearing gloves and safety glasses, taking care to avoid squeezing hands and skin, which can occur without proper care. Don't put them in your pocket.
For storage, the original packaging should be your first choice. Try not to store loosely or mix different types of magnets. If you store different magnets, keep them at a safe distance (so that opposite poles are not attracted) and outside their magnetic field range.
Alnico
Temperature is not a problem for Alnico magnets, but it is recommended to store them in low humidity environments. Wrap the small magnet with foam or cardboard, and pack the large magnet separately. Magnets stored on metal shelves can move or jump, especially when the gap between shelves is insufficient.
The biggest problem with aluminum nickel cobalt magnets is their demagnetization sensitivity. Use protective gear to prevent this situation and keep them away from magnetic sensitive devices or magnets made of different alloys.
Ceramic
Alnico's magnet storage guidelines also apply to ceramic magnets - as long as they are kept away from extreme low temperatures.
Flexible
Start storing and using in a clean, dry, and moderately warm environment. Lay the flexible magnets flat to avoid curling and ensure that their magnetic sides do not face each other. If you prefer to store in rolls, then turn the non magnetic side of the rolls outward. And keep them away from the ground because they attract fine iron particles, which can affect performance.
Rare earth: Corrosion and magnetic leakage are more related to rare earth magnets. Place the magnet in an environment with low humidity and away from extreme high temperatures, and wrap the smaller magnet in corrosion-resistant paper (VCI) for storage. Keep them away from magnetic sensitive devices or magnets made of different alloys, such as Alnico and ceramic magnets. If you use metal shelves for storage, ensure that there is sufficient distance between the shelves to prevent the magnets from moving or jumping.
SmCo
These magnets are quite brittle. If you throw them on the ground, they usually won't be fine - just don't throw them off the roof of the tenth floor. Try to keep them away from salt water and acids. In addition, by storing them responsibly, samarium cobalt magnets should be able to be used for decades.
Neodymium (permanent magnet)
Like samarium cobalt magnets, neodymium is another fairly fragile permanent magnet. They are more susceptible to extreme temperatures, exceeding 320 ° C or below -196 ° C (77 Kelvin) will lose all magnetism. Keep them away from extreme heat, salt water, and acids, and try to avoid soaking them in fresh water.