Magnetic

Magnetic, which should be called magnetic steel, is called Magnet in English. Magnetic steel is mainly divided into two categories, one is soft magnetic, and the other is permanent magnet;

Soft magnetic including silicon steel and soft magnet core; hard magnetic includes aluminum nickel cobalt, mug cobalt, iron oxygen, and cymbal iron boron. Among them, the most expensive is the cobalt magnetic steel, and the cheapest is the iron oxygen magnetic steel. The highest performance is 磁 iron boron magnetic steel, but the performance is the most stable. The best temperature coefficient is aluminum nickel cobalt magnetic steel. Users can choose different hard magnetic products according to different needs.

How to define the performance of magnets?

Mainly 3 types of performance parameters to determine the performance of the magnet:

Remaining magnetic BR: The permanent magnet is magnetized to technical saturation. After removing the external magnetic field, the reserved BR is called the remaining magnetic induction strength.

: The B of the permanent magnet of the technical saturated permanent magnet is reduced to zero. The intensity of the reverse magnetic field that the need to add is called magnetic orthodontics.

Called stubborn power.

Magnetic energy accumulation BH: represents the magnetic energy density established by the magnetic energy in the air gap space (magnetic pole space of magnets), that is, the static magnetic energy of the volume of the air gap unit. Because this energy is equal to the multiplication of BM and HM of magnets, it is called magnetic energy accumulation.

Magnetic field: The space that produces magnetic poles is magnetic field.

Surface magnetic field: Magnetic induction intensity at a specified position on the surface of permanent magnet.

How to choose magnets?

What kind of role should I need to play before deciding which magnets are required?

The main role is: mobile objects, fixed objects or lift objects.

The shape of the required magnet: round sheet, round -shaped, block shape, tile shape or special shape.