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Nanocrystalline soft magnetic alloy and preparation method and application thereof

A nanocrystalline soft magnetic and alloy technology, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of high saturation magnetic induction intensity, high and high frequency permeability, etc., and achieve low preparation difficulty, high density, The effect of reducing impurities

Active Publication Date: 2020-08-18
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Therefore, the technical problem to be solved in the present invention is to overcome the soft magnetic alloys in the prior art that are difficult to take into account defects such as high saturation magnetic induction intensity and high high-frequency magnetic permeability, thereby providing a nanocrystalline soft magnetic alloy and its preparation method

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  • Nanocrystalline soft magnetic alloy and preparation method and application thereof
  • Nanocrystalline soft magnetic alloy and preparation method and application thereof
  • Nanocrystalline soft magnetic alloy and preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0047] This embodiment provides a nanocrystalline soft magnetic alloy, its composition and the atomic percentage of each component are: 76.5at% Fe, 1.5at% Cu, 10at% Si, 8.5at% B, 2.5at% Nb, 0.8at%V and 0.2at%Pr;

[0048] The preparation method of the above-mentioned nanocrystalline soft magnetic alloy comprises the following steps,

[0049] Mix iron raw materials, copper raw materials, silicon raw materials, boron-iron alloy ingot raw materials, niobium-iron alloy ingot raw materials, vanadium-iron-iron alloy ingot raw materials, and praseodymium-iron-iron alloy ingot raw materials according to the above proportions, keep warm at 1320°C for 45 minutes and cool to obtain alloy ingots, and then After the alloy ingot was heated to a molten liquid state at 1350 °C, it was sprayed onto a rotating copper roller through a narrow nozzle to obtain a nanocrystalline precursor with a width of 60 mm and a strip thickness of 18 μm.

[0050] Put the nanocrystalline precursor into a heat tr...

Embodiment 2

[0055] This embodiment provides a nanocrystalline soft magnetic alloy, its composition and the atomic percentage of each component are: 78.5at% Fe, 1.2at% Cu, 10at% Si, 6.5at% B, 1.5at% Nb, 0.8at%V and 1.5at%La;

[0056] The preparation method of the above-mentioned nanocrystalline soft magnetic alloy comprises the following steps,

[0057] Mix iron raw materials, copper raw materials, silicon raw materials, ferroboron alloy ingot raw materials, niobium ferroalloy ingot raw materials, vanadium ferroalloy ingot raw materials and lanthanum ferroalloy ingot raw materials according to the above ratio, keep warm at 1350°C for 30 minutes and cool to obtain alloy ingots, and then After the alloy ingot was heated to a molten liquid state at 1380 ° C, it was sprayed onto a rotating copper roller through a narrow nozzle to obtain a nanocrystalline precursor with a width of 80 mm and a strip thickness of 20 μm.

[0058] Put the nanocrystalline precursor into a heat treatment furnace, he...

Embodiment 3

[0063] This embodiment provides a nanocrystalline soft magnetic alloy, its composition and the atomic percentage of each component are: 77.3at% Fe, 1.2at% Cu, 9.5at% Si, 8.5at% B, 1.5at% Nb , 0.8at%V and 1.2at%Ce;

[0064] The preparation method of the above-mentioned nanocrystalline soft magnetic alloy comprises the following steps,

[0065] Mix iron raw materials, copper raw materials, silicon raw materials, ferroboron alloy ingot raw materials, niobium ferroalloy ingot raw materials, vanadium ferroalloy ingot raw materials and cerium ferroalloy ingot raw materials according to the above proportions, keep warm at 1320°C for 40 minutes and cool to obtain alloy ingots, and then After the alloy ingot was heated to a molten liquid state at 1350 °C, it was sprayed onto a rotating copper roller through a narrow nozzle to obtain a nanocrystalline precursor with a width of 100 mm and a strip thickness of 19 μm.

[0066] Put the nanocrystalline precursor into a heat treatment furnac...

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Abstract

The invention belongs to the technical field of preparation of magnetic functional materials, and particularly relates to nanocrystalline soft magnetic alloy and a preparation method and application thereof. The nanocrystalline soft magnetic alloy comprises the following components: Fe, Cu, Si, B, Nb, V and rare earth metal. By adding the rare earth metal, the ferromagnetic coupling exchange effect between ordered phases of the nanocrystalline soft magnetic alloy can be improved, and the high magnetic induction intensity and high-frequency high magnetic conductivity of the nanocrystalline softmagnetic alloy are improved. Other raw materials in the nanocrystalline soft magnetic alloy can be purified by adding the rare earth metal, and impurities in the nanocrystalline soft magnetic alloy are reduced.

Description

technical field [0001] The invention belongs to the technical field of preparation of magnetic functional materials, in particular to a nanocrystalline soft magnetic alloy and its preparation method and application. Background technique [0002] In response to the global energy crisis, my country proposes energy conservation and emission reduction, the development of a green and low-carbon economy, and proposes to vigorously develop and promote energy-saving technologies and products, and comprehensively promote energy conservation and emission reduction projects, requiring high-frequency switching power supplies, inverter power supplies, and common mode chokes High-frequency power electronic devices such as converters and filters are developing in the direction of miniaturization, high efficiency, high frequency and low energy consumption. Traditional soft magnetic materials, such as silicon steel, permalloy and soft ferrite, have shown their disadvantages in many fields. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147H01F1/153C21D6/00C22C38/00C22C38/02C22C38/12C22C38/16
CPCC21D6/008C22C38/005C22C38/02C22C38/12C22C38/16H01F1/14766H01F1/15333H01F1/15341
Inventor 杨富尧贺爱娜马光陈新韩钰吴雪高洁刘洋程灵何承绪董亚强黎嘉威肖恢芸
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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