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Iron-based amorphous magnetically soft alloy magnetic powder core with organic-inorganic mixed coating

An iron-based amorphous and soft magnetic alloy technology, which is applied in the direction of inorganic materials, magnetic materials, magnetic objects, etc., can solve the problems of alloy difficulty, decrease in magnetic permeability and mechanical properties, and reduce the saturation magnetic induction intensity of alloys, etc.

Pending Publication Date: 2021-11-02
安徽智磁新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high iron content in the alloy system, the amorphous formation ability is weak, and reducing the iron content will reduce the saturation magnetic induction, magnetic permeability and mechanical properties of the alloy, which is the main reason why the alloy is currently difficult to industrialize. question

Method used

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  • Iron-based amorphous magnetically soft alloy magnetic powder core with organic-inorganic mixed coating
  • Iron-based amorphous magnetically soft alloy magnetic powder core with organic-inorganic mixed coating
  • Iron-based amorphous magnetically soft alloy magnetic powder core with organic-inorganic mixed coating

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Embodiment 1

[0033] This embodiment provides an organic-inorganic hybrid coated iron-based amorphous soft magnetic alloy magnetic powder core. The raw materials for the preparation of the magnetic powder core include the following components in parts by weight:

[0034]

[0035] This embodiment also provides a method for preparing the above-mentioned iron-based amorphous soft magnetic alloy magnetic powder core with organic-inorganic hybrid coating, including the following steps:

[0036] 1) Add 0.35 parts of polyvinylpyrrolidone into the 40ml of absolute ethanol, and mix evenly with 30KHz ultrasonic waves;

[0037] 2) Transfer the mixed solution obtained in the step 1) to a three-necked bottle, and add 30 parts of FeSiCr amorphous magnetic powder with a particle size of 80 μm and 3.5 parts of tetrabutyl titanate at 35 °C at 150 rpm Stir for 30min;

[0038] 3) In the mixed solution that described step 2) obtains, add the particle diameter of 35 parts to be the nano-MgO of 17nm, the AlN...

Embodiment 2

[0046] This embodiment provides an organic-inorganic hybrid coated iron-based amorphous soft magnetic alloy magnetic powder core, = the raw material for the preparation of the magnetic powder core, including the following components in parts by weight:

[0047]

[0048] This embodiment also provides a method for preparing the above-mentioned iron-based amorphous soft magnetic alloy magnetic powder core with organic-inorganic hybrid coating, including the following steps:

[0049] 1) Add 20 parts of polyvinylpyrrolidone into the 30ml of absolute ethanol, and use 20KHz frequency ultrasonic mixing;

[0050] 2) Transfer the mixed solution obtained in step 1) to a three-neck flask, and add 20 parts of FeSiCr amorphous magnetic powder with a particle size of 60 μm and 1 part of tetrabutyl titanate to it and stir at 120 rpm for 20 minutes at 30°C ;

[0051] 3) in the mixed solution that step 2) obtains, add the particle diameter of 30 parts to be the nanometer TiO of 15nm 2 , 3 ...

Embodiment 3

[0059] This embodiment provides an organic-inorganic hybrid coated iron-based amorphous soft magnetic alloy magnetic powder core. The raw materials for the preparation of the magnetic powder core include the following components in parts by weight:

[0060]

[0061] This embodiment also provides a method for preparing the above-mentioned iron-based amorphous soft magnetic alloy magnetic powder core with organic-inorganic hybrid coating, including the following steps:

[0062] 1) Add 0.5 parts of polyvinylpyrrolidone into the 50ml of absolute ethanol, and mix evenly with 40KHz ultrasonic waves;

[0063] 2) Transfer the mixed solution obtained in step 1) to a three-neck flask, and add 40 parts of FeSiCr amorphous magnetic powder with a particle size of 100 μm and 6 parts of tetrabutyl titanate to it, and stir at 180 rpm for 40 minutes at 40 ° C ;

[0064] 3) in the mixed solution that step 2) obtains, add the particle diameter of 40 parts to be the nanometer ZrO of 20nm 2 ,...

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Abstract

The invention provides an iron-based amorphous magnetically soft alloy magnetic powder core with an organic-inorganic mixed coating and a preparation method of the iron-based amorphous magnetically soft alloy magnetic powder core. The magnetic powder core is prepared from the following raw materials: FeSiCr amorphous magnetic powder, nano metal oxide, tetrabutyl titanate, polyvinylpyrrolidone, AlN, TiB2, WC, 3-glycyloxy propyl trimethoxy silane, xylene and polysiloxane resin. According to the preparation method, polysiloxane resin is used for forming an outermost organic coating, the nano metal oxide, AlN, TiB2 and WC are used for forming a middle wrapping layer to wrap the FeSiCr amorphous magnetic powder on the innermost layer, thus the polysiloxane resin wrapped AlN / TiB2 / WC / nano metal oxide-FeSiCr amorphous magnetic powder is obtained, and the final ring-shaped magnetic powder core prepared by using the magnetic powder core has the advantages of high mechanical property, high resistivity, high magnetic conductivity and low magnetic loss due to the organic and inorganic double-layer coating.

Description

technical field [0001] The invention belongs to the technical field of amorphous soft magnetic alloys, in particular to an organic-inorganic hybrid coated iron-based amorphous soft magnetic alloy magnetic powder core. Background technique [0002] Nanocrystalline soft magnetic alloys usually undergo appropriate heat treatment on amorphous soft magnetic alloys to precipitate uniform nanocrystalline grains on amorphous substrates to obtain complete nanocrystalline structures or amorphous / nanocrystalline dual-phase structures. After heat treatment, the alloys It has more excellent performance than the original amorphous precursor. Since the advent of iron-based amorphous / nanocrystalline alloys, due to their excellent soft magnetic properties, such as much lower coercive force than silicon steel, high initial permeability and low high-frequency loss, they have attracted extensive attention from material scholars. In recent years, in response to the global call for energy conser...

Claims

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Application Information

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IPC IPC(8): H01F1/00H01F1/147H01F1/26H01F41/02
CPCH01F1/14766H01F1/26H01F41/0246H01F1/0045
Inventor 邓毕力罗顶飞王玉川徐敏义潘振海张朋
Owner 安徽智磁新材料科技有限公司
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