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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

A technology of amorphous nanocrystalline and soft magnetic materials, which is applied in the direction of magnetic materials, inductors/transformers/magnets, magnetic objects, etc., can solve the problems of high process difficulty and high coercive force of iron-based nanocrystalline soft magnetic alloys, and achieve Balance the saturation magnetic induction and coercive force, improve the ability of amorphous formation, and improve the effect of comprehensive magnetic properties

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

AI Technical Summary

Problems solved by technology

The amorphous nanocrystalline soft magnetic material provided by the invention can solve the technical problems of high coercive force and high process difficulty of the iron-based nanocrystalline soft magnetic alloy of the existing Fe-Si-B-P-Cu alloy system

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
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Embodiment 1

[0075] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0076] 1. Ingredients: raw materials with a purity greater than 99% 80 Si 5 B 7 Cu 1 P 4 Zr 2 (NbC) 1 The alloy components are mixed, wherein 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, and C in the form of iron-carbon alloy.

[0077] 2. Melting: Put the well-proportioned raw materials into the crucible of the melting furnace, and in an argon atmosphere, use the method of arc melting to melt at 1500°C to obtain an alloy ingot with a uniform composition.

[0078] 3. Manufacturing of amorphous alloy: after the alloy ingot described in step 2 is remelted, the alloy ingot described in step 2 is quenched 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.

[0079] DSC (Differential Scanning Calorim...

Embodiment 2

[0094] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0095] 1. Ingredients: raw materials with a purity greater than 99% 79 Si 1 B 10 Cu 0.5 P 6 Zr 1 Mo 2 (NbC) 0.5 The alloy components are mixed, wherein 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, and C in the form of iron-carbon alloy.

[0096] 2. Melting: Put the raw materials with a good ratio into the crucible of the melting furnace, and use the arc melting method to melt at 1300°C under a vacuum state to obtain an alloy ingot with a uniform composition.

[0097] 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 DS...

Embodiment 3

[0108] This embodiment prepares amorphous nanocrystalline soft magnetic material according to the following method:

[0109] 1. Ingredients: raw materials with a purity greater than 99% 79.5 Si 2 B 7 Cu 3 P 4 Ta 1 W 1 Ge 0.5 f 1.5 (VC) 0.5 The alloy components are mixed, wherein B is added in the form of boron-iron alloy, P in the form of phosphorus-iron alloy, V in the form of vanadium-iron alloy, and C in the form of iron-carbon alloy.

[0110] 2. Melting: Put the raw materials with a good ratio into the crucible of the melting furnace, and in a vacuum state, use the medium frequency induction melting method to melt at 1400°C to obtain an alloy ingot with a uniform composition.

[0111] 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 pre...

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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 substrate phase, nanocrystalline phases which are distributed in the amorphous substrate phase, and fine-grain particles which are distributed in the amorphous substrate phase and the nanocrystalline phases, wherein the amorphous substrate phase comprises Fe, Si and B; the fine-grain particles include metal carbide; and the soft magnetic material comprises Fe, Si, B, P and Cu. The preparation method comprises the following steps: 1) preparing the raw materials based on the dosage in a formula to obtain an amorphous alloy; and 2) performing two-stage crystallizing on the amorphous alloy under the protective condition; and cooling to obtain the soft magnetic material; and the crystallizing temperature in the second stage is beyond the crystallizing temperature in the first stage. According to the amorphous-nanocrystalline soft magnetic material and the preparation method thereof, the problems of high coercivity of a Fe-Si-B-P-Cu alloy system in the prior art and high technology difficulty can be solved.

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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IPC IPC(8): C22C45/02B22D11/06C21D1/74C21D1/78H01F1/153H01F41/02
CPCC22C45/02C22C33/003B22D11/0611C21D1/74C21D1/78H01F1/15333H01F1/15341H01F41/0253C22C2200/02C22C2200/04H01F27/366C21D2201/03C21D9/46C21D8/1244C21D8/1272C21D1/26C21D6/008C21D8/0205C21D8/0236C21D9/52C22C2202/02
Inventor 刘阳阳付亚奇
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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