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Amorphous-nanocrystalline soft magnetic material, preparation method and application thereof, amorphous strip, amorphous-nanocrystalline strip and amorphous-nanocrystalline magnetic sheet

An amorphous nanocrystalline, soft magnetic material technology, applied in magnetic materials, inductance/transformer/magnet manufacturing, magnetic objects, etc., can solve the problems of high cost, low saturation magnetic induction intensity, etc., and achieve balanced saturation magnetic induction intensity and coercivity. force, improve the ability to form amorphous, improve the effect of comprehensive magnetic properties

Active Publication Date: 2019-09-27
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The amorphous nanocrystalline soft magnetic material provided by the present invention can solve the technical problems of low saturation magnetic induction and high cost of iron-based nanocrystalline soft magnetic alloys in the existing Fe-Si-B-Nb-Cu alloy system

Method used

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  • Amorphous-nanocrystalline soft magnetic material, preparation method and application thereof, amorphous strip, amorphous-nanocrystalline strip and amorphous-nanocrystalline magnetic sheet
  • Amorphous-nanocrystalline soft magnetic material, preparation method and application thereof, amorphous strip, amorphous-nanocrystalline strip and amorphous-nanocrystalline magnetic sheet
  • Amorphous-nanocrystalline soft magnetic material, preparation method and application thereof, amorphous strip, amorphous-nanocrystalline strip and amorphous-nanocrystalline magnetic sheet

Examples

Experimental program
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Effect test

Embodiment 1

[0076] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0077] 1. Ingredients: raw materials with a purity greater than 99% 78.7 Si 8 B 8 Cu 2 Mo 1 Zr 2 (NbC) 0.3 The alloy components are mixed, wherein B is added in the form of boron-iron alloy, Nb in the form of niobium-iron alloy, and C in the form of iron-carbon alloy.

[0078] 2. Melting: Put the raw materials with a good ratio into the crucible of the melting furnace, and in a vacuum state, use the arc melting method to melt at 1300°C to obtain an alloy ingot with a uniform composition.

[0079] 3. Manufacturing of amorphous alloy: after the alloy ingot described in step 2 is re-melted, the strip-shaped amorphous alloy is produced by a single-roll quenching method.

[0080] DSC (Differential Scanning Calorimeter, Differential Scanning Calorimeter) detection is carried out to the amorphous alloy that prepares, obtain as follows figure 2 The DSC curve s...

Embodiment 2

[0095] The amorphous nanocrystalline soft magnetic material of this comparative example is with reference to embodiment 1, and difference is, in step 1, the raw material with purity greater than 99% is pressed Fe 80.7 Si 8 B 8 Cu 2 Mo 1 (NbC) 0.3Alloy components are batched; in step 4, the crystallization temperature of the first stage and the crystallization temperature of the second stage are the initial temperature (456.60°C) of the first crystallization peak of the amorphous alloy obtained in step 3 in this comparative example Based on the calculation, put the amorphous alloy into the heat treatment furnace, and under the protection of high vacuum, raise the temperature in the heat treatment furnace to 448°C at a heating rate of 7°C / min, and keep it for 25min to carry out the first stage of crystallization. Then, at a heating rate of 7°C / min, the temperature in the heat treatment furnace was raised to 540°C and kept for 25 minutes to carry out the second stage of cryst...

Embodiment 3

[0100] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0101] 1. Ingredients: raw materials with a purity greater than 99% 76.5 Si 10 B 6 Cu 1 Ta 1 W 2 Ge 1 Zr 2 (NbC) 0.5 The alloy components are mixed, wherein B is added in the form of boron-iron alloy, Nb in the form of niobium-iron alloy, and C in the form of iron-carbon alloy.

[0102] 2. Melting: Put the raw materials with a good ratio into the crucible of the melting furnace, and use the arc melting method at 1400°C to melt in a vacuum state to obtain an alloy ingot with a uniform composition.

[0103] 3. Manufacturing of amorphous alloy: after the alloy ingot described in step 2 is re-melted, the strip-shaped amorphous alloy is produced by a single-roll quenching method. DSC (Differential Scanning Calorimeter, Differential Scanning Calorimeter) detection is carried out to the prepared amorphous alloy, and the DSC curve is obtained, and the DSC curv...

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Abstract

The invention provides an amorphous-nanocrystalline soft magnetic material, a preparation method and application thereof, an amorphous strip, an amorphous-nanocrystalline strip and an amorphous-nanocrystalline magnetic sheet. The soft magnetic material comprises an amorphous matrix phase, a nanocrystalline phase distributed in the amorphous matrix phase, and fine crystalline particle distributed in the amorphous matrix phase and the nanocrystalline phase, wherein the amorphous matrix phase comprises Fe, Si and B, the fine crystalline particle comprise metal carbide, and the soft magnetic material comprises Fe, Si, B, X and Cu, wherein X is Nb and / or V. the preparation method comprises the following steps of, 1), preparing the raw materials in the formula amount, and then preparing an amorphous alloy; and 2) carrying out two-stage crystallization on the amorphous alloy under a protective condition, and cooling the amorphous alloy to obtain the soft magnetic material. The soft magnetic material solves the technical problems that the saturation magnetic induction intensity is relatively low and the cost is relatively high in a Fe-Si-B-Nb-Cu alloy system in the prior art.

Description

technical field [0001] The invention belongs to the field of magnetic materials, and relates to a soft magnetic material and a preparation method thereof, an amorphous strip, a soft magnetic tape and a soft magnetic sheet, in particular to an amorphous nanocrystalline soft magnetic material, a preparation method and application thereof, and an amorphous strip , Amorphous and nanocrystalline ribbons and amorphous and nanocrystalline magnetic sheets. Background technique [0002] Soft magnetic materials are a kind of commonly used functional materials that are easy to magnetize and demagnetize. They have excellent magnetic application characteristics such as high magnetic permeability, low coercive force, small hysteresis, and low loss. They are used in industrial fields such as electric power, electronics, and motors. have wide applications. Since the 19th century, soft magnetic materials have successively developed into electrical pure iron, silicon steel, permalloy, iron-a...

Claims

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Application Information

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IPC IPC(8): C22C45/02B22D11/06H01F1/153H01F41/00
CPCB22D11/0611C22C33/003C22C45/02H01F1/15333H01F1/15341H01F41/00
Inventor 刘阳阳付亚奇
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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