What are the difficulties when cutting ferrite magnets?
A ferrite magnet is a metal oxide having ferromagnetism. In terms of electrical characteristics, ferrite magnets have much higher electrical resistivity than metal and alloy magnetic materials, and also have higher dielectric functions.
The magnetic function of the ferrite magnet also exhibits a high magnetic permeability at high frequencies. Therefore, ferrite magnets have become a non-metallic magnetic material commonly used in high frequency and low voltage applications. Due to the low magnetic energy and low saturation magnetization (usually only 1/3 to 1/5 of pure iron) stored in a unit volume of a ferrite magnet, ferrite magnets require low frequency, high power and high power at higher magnetic energy density. The use of borders is limited.
Classification of ferrite magnets
The ferrite magnet is sintered from iron oxide and other components. Generally, it can be classified into a permanent ferrite magnet, a soft ferrite magnet, and a rotating ferrite magnet.
The ferrite magnet is also called ferrite magnet magnet, which is a small black magnet we see every day. Iron oxide, barium carbonate or barium carbonate is the main raw material. After magnetization, the strength of the residual magnetic field is very high and can be maintained for a long time. Usually used as a permanent magnet material. For example: speaker magnet.
Soft ferrite magnets are prepared by sintering iron oxide and one or more other metal oxides. It is called soft magnetic because the residual magnetic field is very small or almost absent when the magnetizing magnetic field is dissipated. It is commonly used as a choke coil or core for intermediate frequency transformers.
The spin magnetic ferrite magnet refers to a ferrite magnet raw material having spin magnetism. The rotating magnetic property of the magnetic material refers to the phenomenon that the plane-polarized electromagnetic wave continuously rotates around the propagation target during the propagation of the electromagnetic wave within the raw material according to the determined target under the action of two perpendicular DC magnetic fields and electromagnetic wave magnetic fields. Spin ferrite magnets are widely used in microwave communication.
Difficulties in die cutting of ferrite magnets:
The raw material is basically in the form of a sheet, which is thin, high in quality, and brittle, and is cracked by gently lifting it with a finger. Under normal stress conditions, the split does not split with the stressed target.
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