Soft magnetic material and preparation method thereof
A technology of soft magnetic materials and soft magnetic alloys, applied in the fields of inorganic material magnetism, inductance/transformer/magnet manufacturing, electrical components, etc., can solve problems such as increasing eddy current loss
Pending Publication Date: 2021-05-28
王静然
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Problems solved by technology
[0004] The application provides a soft magnetic material and a preparation method thereof, which can solve the problem of increased eddy current loss due to conduction between two adjacent layers of soft magnetic materials in the magnetic core
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[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0029] figure 1 A schematic structural diagram of a soft magnetic material according to an embodiment of the present application is illustrated. as attached figure 1 As shown, the soft magnetic material includes: a soft magnetic alloy strip 1 and an activated carbon layer 2 formed on the surface of the soft magnetic alloy strip, and the activated carbon coating 2 is dip-coated with an immersion solution on the soft magnetic alloy strip, and volatilized by heating formed later.
[0030] In the embodiment of the present application, an activated carbon layer can be formed on the surface of the soft magnetic alloy strip. In this way, since activated carbon is a porous substance with a wide range of pore size distribution, the acti...
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Abstract
The invention discloses a soft magnetic material and a preparation method thereof, and belongs to the technical field of insulation. The soft magnetic material with a surface insulating layer comprises a soft magnetic alloy strip and an activated carbon layer formed on the surface of the soft magnetic alloy strip, and the activated carbon layer is formed by dip-coating the soft magnetic alloy strip with an infiltrating solution and heating and volatilizing the infiltrating solution. According to the invention, the active carbon layer is formed on the surface of the soft magnetic alloy strip, so that the active carbon is a porous substance and has a wide pore size distribution range, and therefore, the active carbon has very high insulation performance, namely, the surface of the soft magnetic material has very high insulation resistance. Therefore, when the magnetic core works in high, medium and low frequency alternating magnetic fields, each layer of soft magnetic material has a good insulation effect, so that the eddy current effect of the magnetic core is reduced, and the eddy current loss of the magnetic core is reduced.
Description
technical field [0001] The present application relates to the field of insulation technology, in particular to a soft magnetic material and a preparation method thereof. Background technique [0002] Soft magnetic materials usually need to work under an alternating electric field, and the interior of the soft magnetic material will induce an alternating electric field, thereby generating an induced current inside the soft magnetic material, that is, the energy of the alternating electric field is absorbed by the soft magnetic material in the form of eddy current loss. consume. In order to reduce the eddy current loss of soft magnetic materials, some elements with higher resistivity (such as adding silicon to pure iron) are usually added in the production process of soft magnetic materials, and the prepared soft magnetic materials are made into flakes. Afterwards, the thin sheet-shaped soft magnetic material can be wound into a magnetic core, and then through an appropriate ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01F1/33H01F41/02
CPCH01F1/33H01F41/02
Inventor 王静然
Owner 王静然