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Iron-based nano amorphous magnetic core and application thereof

A nano-amorphous, iron-based technology, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of low initial magnetic permeability, raw material selection or raw material ratio, etc., to improve the initial magnetic permeability, volt The output of safety characteristics is smooth and the effect of grain refinement

Active Publication Date: 2017-11-24
贵州鑫湄纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide an iron-based nano-amorphous magnetic core to solve the problem of low initial magnetic permeability of the iron-based nano-amorphous magnetic core in the prior art due to the selection of raw materials or improper ratio of raw materials.

Method used

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  • Iron-based nano amorphous magnetic core and application thereof
  • Iron-based nano amorphous magnetic core and application thereof
  • Iron-based nano amorphous magnetic core and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: a kind of preparation method of iron-based nano-amorphous magnetic core, comprises the following steps:

[0028] Put Fe73 parts, Si10 parts, B13 parts, Cu1 parts and Nb3 parts into vacuum heat treatment furnace by weight and carry out heat treatment; heat treatment process comprises four stages:

[0029] The first stage: the temperature is raised from room temperature to 280°C at a constant speed for 60 minutes, and then the temperature is kept at

[0030] 280℃, keep warm for 60min;

[0031] The second stage: the temperature is raised from 280°C to 380°C at a uniform speed for 30 minutes, and then the temperature is kept at

[0032] 380°C, keep warm for 60min;

[0033] The third stage: the temperature is raised from 380°C to 480°C at a uniform speed for 30 minutes, and then the temperature is kept at

[0034] 480℃, keep warm for 60min;

[0035] The fourth stage: the temperature is raised from 480°C to 550°C at a uniform speed for 90 minutes, and then t...

Embodiment 2

[0037] The only difference between embodiment 2 and embodiment 1 is that the iron-based nano-amorphous core includes raw materials and their parts by weight: 73 parts of Fe, 10 parts of Si, 13 parts of B, 1 part of Cu and 0.8 parts of Mo.

Embodiment 3

[0038] The only difference between embodiment 3 and embodiment 1 is that the iron-based nano-amorphous magnetic core includes raw materials and parts by weight: 71 parts of Fe, 12 parts of Si, 13.5 parts of B, 1 part of Cu, 2.5 parts of Nb and 1 part of Cr.

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Abstract

The invention discloses an iron-based nano amorphous magnetic core in the technical field of nano amorphous alloys. The iron-based nano amorphous magnetic core comprises, by weight, 71-75 parts of Fe, 9-15 parts of Si, 12.5-13.5 parts of B, 0.8-1.2 parts of Cu and a promoting material, wherein the promoting material is 2-4 parts of Nb or 0.5-3 parts of Mo. The iron-based nano amorphous magnetic core has the advantages that the use amount of the raw materials is optimized, the Fe is used as the base raw material, the Si and the B which are small in atomic radius are used to promote the formation of the amorphous alloy, the interaction among the Cu, the Nb (or Mo) and the other raw materials is utilized to allow the crystalline grain in the prepared iron-based nano amorphous magnetic core to be fine, a magnetic domain crystal structure is optimized, and accordingly the initial permeability of the iron-based nano amorphous magnetic core in volt-ampere characteristic tests is increased, the volt-ampere characteristic output of the iron-based nano amorphous magnetic core is allowed to be gentle, and the application performance of the iron-based nano amorphous magnetic core in sensors, electronic inductor components or current transformers is optimized.

Description

technical field [0001] The invention relates to the technical field of nano-amorphous alloys, in particular to an iron-based nano-amorphous magnetic core and its application. Background technique [0002] Amorphous and nanocrystalline soft magnetic materials are crystallized after heat treatment to obtain microcrystals with a grain diameter of 10-20nm, hence the name. This alloy almost combines the excellent properties of all amorphous alloys: high saturation magnetic flux density, high initial permeability, low specific loss and good temperature stability. [0003] Among the amorphous and nanocrystalline soft magnetic materials, iron-based nano-amorphous magnetic cores are widely used, mainly in the fields of power systems, computer networks, multimedia technology and high-frequency micro-magnetic devices. Amorphous and nanocrystalline soft magnetic materials mainly contain ferromagnetic elements, amorphous forming elements and nanocrystalline forming elements. Ferromagne...

Claims

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Application Information

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IPC IPC(8): H01F1/153
CPCH01F1/15308H01F1/15333H01F1/15341
Inventor 唐书辉
Owner 贵州鑫湄纳米科技有限公司
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