A magnet is an object that is typically a metal that produces a magnetic field thanks to its structure. Magnetic metals are often referred to as ferromagnets and are characterized by the presence of unpaired electrons whose alignment results in the production of a magnetic field. There are factors including heat, mechanical shock, and a demagnetizing field that can cause a magnet to lose its magnetism.
How to Remagnetize a Permanent Magnet
There are some safety measures that you take into consideration before attempting this procedure. Wear some protective gloves as the magnets can break into pieces during the process if not properly done.
This is why you must understand the strength of your magnet and select another one with similar magnetic strength or slightly stronger.
The steps involved in remagnetizing a permanent magnet include;
- The first step in this process is to determine the kind of magnet that you have. Remagnetization of a magnet is possible for a permanent magnet using this magnet. An electromagnet may not achieve the desired results.
- Next step is to prepare both the magnets that are to be used in this process. You will need a larger magnet whose strength should at the very least match that of the one that has been demagnetized. It is important to clean both the magnets and clear away any form of rust and other dirt particles.
- You will then join the magnets aligning their opposing poles together. This is because magnets attract each other when their opposing poles are brought into proximity
- It is important to note that the category of magnet will also determine the type of magnet to use for the remagnetization. For example, a neodymium magnet will require a similar type of magnet and a ferrite magnet will require another ferrite magnet.
- The next step is to introduce the magnetic field by moving the larger magnet around your other magnet in a D-shaped motion. This motion will cause the domains of the magnet to orient and this is how the magnet will regain its magnetism. This step should be repeated several times until you see the results
- You should confirm if the procedure was successful through a series of tests to ascertain that it has regained its strength and direction as well as the proper restoration of its poles. You can test against magnetic objects
Steps on How to Remagnetize an Electromagnet
Electromagnets rely on coiled wire to produce a magnetic field. It is therefore not possible to remagnetize these types of magnets using another magnet. Remagnetizing an electromagnet involves the following steps;
- The first step is to disassemble the magnet. You should ensure that active currents are running through the coils to prevent any accidents that may be caused by exposure to an actively conducting wire coil. You should disconnect it from any circuit or power source.
- After this, the next step is to remove the coil by unwrapping it from the magnet carefully so as not to damage the metal underneath the wires.
- The next step is to reenergize the unwound coil. You can do this by directly connecting the coil to a power source of any kind. The current required for this depends on the variety of electromagnets you have. It is important to the exact specification in terms of voltage to avoid overloading and damaging the coil.
- Once the wire is once again energized and has obtained the required magnetic field you then reassemble the electromagnet. Assembly involves correctly wrapping the wire once again around the material ensuring that you properly align it
- The last step is to check the success of the procedure by conducting a series of tests to confirm if the electromagnet is fully functioning. You can test it against magnetic objects or use the magnetometer
Permanent magnets can easily be remagnetized using another magnet because it possesses domains that can be reoriented making it magnetic once again. On the other hand, electromagnets are not structurally capable of producing a magnetic field and therefore rely on a coil that uses currents to produce a magnetic field