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Amorphous-nanocrystalline Fe-based composite soft magnetic alloy and preparation method thereof

An amorphous nanocrystalline and soft magnetic alloy technology, applied in the manufacture of inductors/transformers/magnets, magnetic materials, magnetic objects, etc., can solve the problems of large coercivity and affect the performance of soft magnetic alloys, and reduce the coercivity. , facilitate the smelting process, improve the effect of magnetic properties

Active Publication Date: 2018-08-24
ZHEJIANG HENGJI YONGXIN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main substrate of nanocrystalline soft magnetic alloys currently used is iron-based, but the coercive force of the prepared products is often large during the preparation process, which in turn affects the properties of soft magnetic alloys

Method used

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  • Amorphous-nanocrystalline Fe-based composite soft magnetic alloy and preparation method thereof
  • Amorphous-nanocrystalline Fe-based composite soft magnetic alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An amorphous nanocrystalline iron-based composite soft magnetic alloy proposed by the present invention is composed of iron-based soft magnetic alloy A and iron-based soft magnetic alloy B according to a mass ratio of 1:3. The iron-based soft magnetic alloy A includes raw materials in the following weight percentages: Al8%, Si 1%, B 0.65%, and the balance is Fe and unavoidable impurities. The iron-based soft magnetic alloy B includes the following raw materials in weight percentages: Al 4%, Si 0.4 %, Ni 3%, Co 3%, Cr 1.1%, Ti 0.09%, Mo 0.3%, Sm 0.46%, B 0.9%, composite rare earth metal 0.9%, the balance is Fe and unavoidable impurities.

[0022] Its preparation method comprises the following steps:

[0023] S1. According to: Al 8%, Si 1%, B 0.65%, the balance is Fe and unavoidable impurities to prepare the raw materials of iron-based soft magnetic alloy A, and place the prepared raw materials of iron-based soft magnetic alloy A in smelting furnace to obtain smelting so...

Embodiment 2

[0029] An amorphous nanocrystalline iron-based composite soft magnetic alloy proposed by the present invention is composed of iron-based soft magnetic alloy A and iron-based soft magnetic alloy B according to a mass ratio of 1:4. The iron-based soft magnetic alloy A includes raw materials in the following weight percentages: Al10%, Si 1.2%, B 0.8%, and the balance is Fe and unavoidable impurities. The iron-based soft magnetic alloy B includes the following raw materials in weight percentages: Al 5%, Si 0.3 %, Ni 4%, Co 4%, Cr 0.8%, Ti 0.12%, Mo 0.4%, Sm 0.3%, B 0.8%, composite rare earth metal 0.6%, the balance is Fe and unavoidable impurities.

[0030] Its preparation method comprises the following steps:

[0031] S1. According to Al 10%, Si 1.2%, B 0.8%, the balance is Fe and unavoidable impurities to prepare the raw material of iron-based soft magnetic alloy A, and place the prepared raw material of iron-based soft magnetic alloy A in the melting furnace Carry out smelting...

Embodiment 3

[0037] An amorphous nanocrystalline iron-based composite soft magnetic alloy proposed by the present invention is composed of iron-based soft magnetic alloy A and iron-based soft magnetic alloy B according to a mass ratio of 1:2. The iron-based soft magnetic alloy A includes raw materials in the following weight percentages: Al6%, Si 0.8%, B 0.5%, and the balance is Fe and unavoidable impurities. The iron-based soft magnetic alloy B includes the following raw materials in weight percentages: Al 3%, Si 0.5% %, Ni 2%, Co 2%, Cr 1.3%, Ti 0.06%, Mo 0.2%, Sm 0.6%, B 1.0%, composite rare earth metal 1.2%, and the balance is Fe and unavoidable impurities.

[0038] Its preparation method comprises the following steps:

[0039] S1. According to Al 6%, Si 0.8%, B 0.5%, the balance is Fe and unavoidable impurities to prepare the raw materials of iron-based soft magnetic alloy A, and place the prepared raw materials of iron-based soft magnetic alloy A in the melting furnace Carry out sme...

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Abstract

The invention discloses an amorphous-nanocrystalline Fe-based composite soft magnetic alloy and a preparation method thereof. The amorphous-nanocrystalline Fe-based composite soft magnetic alloy is formed by compounding a Fe-based soft magnetic alloy A and a Fe-based soft magnetic alloy B, wherein the Fe-based soft magnetic alloy A is prepared from the following raw materials of Al, Si, B, Fe andunavoidable impurities; the Fe-based soft magnetic alloy B is prepared from the following raw materials of Al, Si, Ni, Co, Cr, Ti, Mo, Sm, B, composite rare-earth metal, Fe and unavoidable impurities;and the preparation method comprises the following steps of (S1) preparing powder of the Fe-based soft magnetic alloy A; (S2) preparing the powder of the Fe-based soft magnetic alloy B; (S3) preparing the powder of a Fe-based composite soft magnet; and (S4) smelting and rapidly quenching the powder of the Fe-based composite soft magnet to obtain the amorphous-nanocrystalline Fe-based composite soft magnetic alloy. The composite soft magnetic alloy disclosed by the invention is reasonable in formula, low in coercivity, simple in preparation method and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of soft magnetic alloys, in particular to an amorphous nanocrystalline iron-based composite soft magnetic alloy and a preparation method thereof. Background technique [0002] Soft magnetic alloy is a kind of alloy with high magnetic permeability and low coercive force in weak magnetic field. This kind of alloy is widely used in radio electronics industry, precision instrumentation, remote control and automatic control system. It is an important material in the national economy in two aspects of energy conversion and information processing. Nanocrystalline soft magnetic alloy is a soft magnetic alloy with nanocrystalline structure obtained by heat treatment on the basis of amorphous alloy, which has more excellent soft magnetic properties. Therefore, both the manufacturing process and the use process of amorphous alloy materials will be energy-saving, and the green energy-saving products will be developed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/153H01F41/02C22C45/02
CPCC22C45/02H01F1/15333H01F1/15341H01F41/02
Inventor 吴奇明李康基
Owner ZHEJIANG HENGJI YONGXIN NEW MATERIALS CO LTD
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