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

An amorphous nanocrystalline, soft magnetic material technology, applied in the direction of magnetic materials, inductor/transformer/magnet manufacturing, magnetic objects, etc., can solve the problem of saturation magnetic induction intensity and coercive force can not be balanced, to improve the ability to form amorphous , Balance saturation magnetic induction and coercivity, low loss effect

Active Publication Date: 2019-09-20
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the above methods all have the problem that the saturation magnetic induction and coercive force cannot be balanced.

Method used

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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0079] 1. Ingredients: raw materials with a purity greater than 99% 80 Si 4 B 9 Cu 1 P 5.8 (NbC) 0.2 The alloy components are mixed, in which B is added in the form of boron-iron alloy, P in the form of phosphorus-iron alloy, Nb in the form of niobium-iron alloy, C in the form of iron-carbon alloy, and other elements are added in the form of simple substances.

[0080] 2. Melting: Put the raw materials with a good ratio into the crucible of the melting furnace, and use electric arc melting at 1400°C to obtain an alloy ingot with uniform composition under the vacuum state.

[0081] 3. Manufacturing of amorphous alloy: after remelting the alloy ingot described in step 2, quenching is carried out by a single-roller quenching method, and the cooling rate of quenching is 10 6 °C / s or more, a strip-shaped amorphous alloy is obtained.

[0082] Carry out XRD (X-...

Embodiment 2

[0099]This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0100] 1. Ingredients: raw materials with a purity greater than 99% 78 Si 4 B 9 Cu 1 P 7.8 (NbC) 0.2 The alloy components are mixed, in which B is added in the form of boron-iron alloy, P in the form of phosphorus-iron alloy, Nb in the form of niobium-iron alloy, C in the form of iron-carbon alloy, and other elements are added in the form of simple substances.

[0101] 2. Melting: put the well-proportioned raw materials into the crucible of the melting furnace, and use electric arc melting at 1300°C in a nitrogen atmosphere to obtain an alloy ingot with a uniform composition.

[0102] 3. Manufacturing of amorphous alloy: after remelting the alloy ingot described in step 2, quenching is carried out by a single-roller quenching method, and the cooling rate of quenching is 10 6 °C / s or more, a strip-shaped amorphous alloy is obtained.

[0103] 4. Crystalliza...

Embodiment 3

[0113] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0114] 1. Ingredients: raw materials with a purity greater than 99% 83 Si 2 B 9 Cu 1 P 4.8 (NbC) 0.2 The alloy components are mixed, in which B is added in the form of boron-iron alloy, P in the form of phosphorus-iron alloy, Nb in the form of niobium-iron alloy, C in the form of iron-carbon alloy, and other elements are added in the form of simple substances.

[0115] 2. Melting: Put the well-proportioned raw materials into the crucible of the smelting furnace, and use arc melting at 1500°C in an argon atmosphere to obtain an alloy ingot with a uniform composition.

[0116] 3. Manufacturing of amorphous alloy: after remelting the alloy ingot described in step 2, quenching is carried out by a single-roller quenching method, and the cooling rate of quenching is 10 6 °C / s or more, a strip-shaped amorphous alloy is obtained.

[0117] 4. Crystallization: Cry...

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Abstract

The invention provides an amorphous nanocrystalline soft magnetic material and 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 as well as fine grain particles distributed in the amorphous matrix phase and the nanocrystalline phase; the amorphous matrix phase comprises Fe, Si and B; the fine grain particles comprise metal carbide. The preparation method comprises the following steps: firstly, burdening raw materials with formula amount to obtain an amorphous alloy; secondly, under the protective conditions, carrying out two-stage crystallization on the amorphous alloy and cooling to obtain the soft magnetic material, wherein the crystallization temperature of the second stage is higher than that of the first stage. The amorphous nanocrystalline soft magnetic material provided by the invention can balance saturation flux density and coercive force and has lower magnetic loss.

Description

technical field [0001] The invention belongs to the field of magnetic materials, and relates to soft magnetic materials and their preparation methods and uses, amorphous strips, soft magnetic tape materials and soft magnetic sheets, and in particular to amorphous nanocrystalline soft magnetic materials and their preparation methods and uses, amorphous Ribbons, 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-al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22D11/06C21D1/74C21D1/78H01F1/153H01F41/02
CPCB22D11/0611C21D1/74C21D1/78C22C33/003C22C45/02C22C2200/02C22C2200/04H01F1/15333H01F1/15341H01F41/0253
Inventor 刘阳阳付亚奇
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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