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Magnetization and demagnetization
Before the magnet is magnetized with a magnetic metal compound only.
For this reason, there is no need to blow magnetism which I produced the magnets. My name is magnetized. Use of energy, a magnetic field is given 3-5 times, or more generally a coercive force of the magnet is held
Magnetized by air core coila strong magnetic field is generated in the center of the air-core coil a current is applied.Make magnetized to put a magnet that does not have a magnetic force there.This method does not allow you to perform complex magnetization, such as the multi-pole magnetized, but because a strong magnetic field is generated, it is used in all of the magnetized magnet. Thickness direction of magnetization, radially magnetized NS, top and bottom can be magnetized. | Air core coil |
Magnetization of the magnetic yoke
and by generating a magnetic field from a plurality of coils with iron core, magnetizing yoke is responsible for internal and external 2-pole or multi-pole magnetized magnetized magnet that does not have a magnetic force. This method is not possible because the magnetic field is weaker than the air-core coil, to perform a magnetized neodymium magnet and some samarium-cobalt magnet with high coercive force, but it has been used in multi-pole magnetization of the ferrite magnet, such as rubber magnet You. A new production of magnetizing yoke requires a multi-pole magnetized special order, please contact us so there are times when you do can be accommodated by existing magnetizing yoke.
There is a temperature at which the magnetic force that the Curie temperature is no longer the magnet. Force is completely eliminated if heated above this temperature. I called the heat to demagnetize it. There is also a method of AC demagnetization of using the electrical energy in addition to this. This is called de-energized to take the magnetic force of the magnet as this.
However, the magnetic force to return to the original generally if the magnetized again even after demagnetization.