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Iron-based amorphous soft magnetic alloy for precision current detection and preparation method thereof

An iron-based amorphous alloy and iron-based amorphous technology are applied in the direction of inductor/transformer/magnet manufacturing, circuits, magnetic materials, etc., which can solve the problems of increasing material costs, application field limitations, and process complexity, and achieve improved softness. The effect of magnetic properties, good economy, and wide application prospects

Inactive Publication Date: 2021-06-01
江苏三环奥纳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it generally needs to be carried out in a vacuum environment because it contains metal elements such as Zr, which makes the process complicated; also for Hitperm alloys, the soft magnetic properties of the alloy are improved, but due to the inclusion of Co and other elements, the material cost is greatly increased. , the field of application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of the iron-based amorphous soft magnetic alloy for precision current detection comprises the following steps:

[0033] (1) Preparation of master alloy composition: first use a grinding wheel to grind off the surface oxide layer of Fe, Nb, Ni, Si, and FeB raw materials. The typical composition of the iron-based amorphous soft magnetic alloy is FexNbyNizSinBm, where x=72at% , y=6at%, z=2at%, n=10at%, m=10at%, accurately weigh Fe, Nb, Ni, Si, FeB according to the above formula, and the weighing error is controlled at ±0.003%;

[0034] (2) Smelting master alloy: Melting the above raw materials into alloy ingots through a non-consumable vacuum arc melting furnace;

[0035] Wherein, the smelting master alloy specifically includes the following steps:

[0036] 1) Cleaning: Put the Fe, Nb, Ni, Si, and FeB raw materials prepared above in an acetone / ethanol solution, and use ultrasonic cleaning to remove surface oil and other organic matter;

[0037] 2) ...

Embodiment 2

[0043] (1) Preparation of master alloy composition: first use a grinding wheel to grind off the surface oxide layer of Fe, Nb, Ni, Si, and FeB raw materials. The typical composition of the iron-based amorphous soft magnetic alloy is FexNbyNizSinBm, where x=70at% , y=8at%, z=2at%, n=12at%, m=8at%, accurately weigh Fe, Nb, Ni, Si, FeB according to the above formula, and the weighing error is controlled at ±0.003%;

[0044] (2) Smelting master alloy: Melting the above raw materials into alloy ingots through a non-consumable vacuum arc melting furnace;

[0045] Wherein, the smelting master alloy specifically includes the following steps:

[0046] 1) Cleaning: Put the Fe, Nb, Ni, Si, and FeB raw materials prepared above in an acetone / ethanol solution, and use ultrasonic cleaning to remove surface oil and other organic matter;

[0047] 2) Vacuuming: Place the prepared Fe, Nb, Ni, Si, and FeB raw materials in a boron nitride crucible in a non-consumable vacuum arc melting furnace, w...

Embodiment 3

[0053] (1) Preparation of master alloy composition: first use a grinding wheel to grind off the surface oxide layer of Fe, Nb, Ni, Si, and FeB raw materials. The typical composition of the iron-based amorphous soft magnetic alloy is FexNbyNizSinBm, where x=75at% , y=6at%, z=1.5at%, n=12.5at%, m=5at%, accurately weigh Fe, Nb, Ni, Si, FeB according to the above formula, and the weighing error is controlled at ±0.003%;

[0054] (2) Smelting master alloy: Melting the above raw materials into alloy ingots through a non-consumable vacuum arc melting furnace;

[0055] Wherein, the smelting master alloy specifically includes the following steps:

[0056] 1) Cleaning: Put the Fe, Nb, Ni, Si, and FeB raw materials prepared above in an acetone / ethanol solution, and use ultrasonic cleaning to remove surface oil and other organic matter;

[0057] 2) Vacuuming: Place the prepared Fe, Nb, Ni, Si, and FeB raw materials in a boron nitride crucible in a non-consumable vacuum arc melting furnac...

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Abstract

The invention relates to an iron-based amorphous magnetically soft alloy for precision current detection and a preparation method thereof. The typical component of the iron-based amorphous soft magnetic alloy is FexNbyNizSinBm, wherein x=65-80 at%, y=5-8 at%, z=1-2 at%, n=8-15 at%, and m=4-10 at%. According to the iron-based amorphous soft magnetic alloy for precision current detection and the preparation method thereof, a formula is reasonable, a preparation process is simple, an interaction coupling effect between Fe and Nb, Ni, Si and B is good, the excellent soft magnetic performance is achieved, the Fe element serves as the main component, the cost of the material is greatly reduced, the magnetic performance is improved, Nb provides a nucleation site for precipitation of nanocrystals to hinder overgrowth of alpha-Fe (Si) nanocrystals, meanwhile, a crystallization temperature is increased, the thermal stability is improved, and an amorphous phase is stabilized; Ni improves the amorphous forming ability of the alloy and improves the saturation flux density; and Si can reduce an average grain size, broaden the temperature interval of alloy heat treatment and inhibit precipitation of secondary phases such as Fe-(B) to increase thermal stability, and the B element can play a role in stabilizing an amorphous phase and hindering further growth of grains.

Description

technical field [0001] The invention belongs to the technical field of iron-based amorphous soft magnetic alloys, and in particular relates to an iron-based amorphous soft magnetic alloy for precision current detection and a preparation method thereof. Background technique [0002] As a new generation of green and energy-saving materials, iron-based amorphous soft magnetic alloys have unique advantages in reducing the loss of power electronics, which can help promote energy conservation and emission reduction, and have important economic and application values. Compared with traditional soft magnetic materials, iron-based amorphous soft magnetic alloys have better soft magnetic properties and high Curie temperature, which makes them very good in magnetic devices such as power switches, distribution transformers, and current transformers. Application prospects, especially suitable for precision current detection. [0003] Iron-based amorphous soft magnetic alloys have gradua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/153H01F41/00
CPCH01F1/15308H01F1/1535H01F41/00
Inventor 安石
Owner 江苏三环奥纳科技有限公司
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