A kind of iron-based nanocrystalline soft magnetic alloy and preparation method thereof

A technology of iron-based nanocrystalline and soft magnetic alloys, applied in the field of alloys, can solve the problems of limited applications, large volume, low (up to 1.4T, usually around 1.2T), etc., to achieve high saturation magnetic induction and low loss Effect

Inactive Publication Date: 2016-06-01
SHANGHAI MICHUANG ELECTRIC DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its saturation magnetic induction is relatively low (up to 1.4T, usually around 1.2T)
Compared with silicon steel with high saturation magnetic induction, it requires a larger volume when applied under the same working conditions, which greatly limits its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Ferro-silicon, ferro-boron, ferro-phosphorus, iron, copper, aluminum and other raw materials are configured in a certain proportion as Fe 82 Cu 0.5 al 1 Si 4.5 B 8 P 4 The masterbatch is 5 kg in total; the prepared masterbatch is added to the crucible of the vacuum intermediate frequency induction furnace for melting, and the intermediate frequency induction melting is carried out three times to obtain an alloy ingot with uniform composition; the alloy ingot is mechanically crushed and put into the quartz tube of the quenching belt making equipment In the process, induction heating and melting were adopted, and a single-roller quenching strip process was used to make strips at a speed of 35m / s in the air to obtain an amorphous thin strip with a strip width of 10mm and a thickness of 30 microns; the amorphous alloy strip Put into tube type vacuum heat treatment furnace, vacuum degree is at 10 -3 Around Pa, raise the temperature to 360°C at a heating rate of 15°C / min...

Embodiment 2

[0019] Ferro-silicon, ferro-boron, ferro-phosphorus, iron, copper, aluminum and other raw materials are configured in a certain proportion as Fe 80 Cu 0.5 al 1.5 Si 5 B 9 P 4 The masterbatch is 5 kg in total; the prepared masterbatch is added to the crucible of the vacuum intermediate frequency induction furnace for melting, and the intermediate frequency induction melting is carried out three times to obtain an alloy ingot with uniform composition; the alloy ingot is mechanically crushed and put into the quartz tube of the quenching belt making equipment In the process, induction heating and melting were adopted, and a single-roller quenching strip process was used to make strips at a speed of 35m / s in the air to obtain an amorphous thin strip with a strip width of 10mm and a thickness of 30 microns; the amorphous alloy strip Put into tube type vacuum heat treatment furnace, vacuum degree is at 10 -3 Around Pa, raise the temperature to 360°C at a heating rate of 15°C / min...

Embodiment 3

[0021] Ferro-silicon, ferro-boron, ferro-phosphorus, iron, copper, aluminum and other raw materials are configured in a certain proportion as Fe 78.5 Cu 0.5 al 2 Si 5.5 B 9.5 P 4 The masterbatch is 5 kg in total; the prepared masterbatch is added to the crucible of the vacuum intermediate frequency induction furnace for melting, and the intermediate frequency induction melting is carried out three times to obtain an alloy ingot with uniform composition; the alloy ingot is mechanically crushed and put into the quartz tube of the quenching belt making equipment In the process, induction heating and melting were adopted, and a single-roller quenching strip process was used to make strips at a speed of 35m / s in the air to obtain an amorphous thin strip with a strip width of 10mm and a thickness of 30 microns; the amorphous alloy strip Put into tube type vacuum heat treatment furnace, vacuum degree is at 10 -3 Around Pa, raise the temperature to 360°C at a heating rate of 15°C...

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Abstract

The invention relates to an iron-based nanocrystalline magnetically soft alloy and a preparation method thereof. The alloy is FeaCubAlcSixByPz, wherein a is more than or equal to 68 and less than or equal to 85, b is more than or equal to 0 and less than or equal to 2, c is more than or equal to 0 and less than or equal to 5, x is more than or equal to 3 and less than or equal to 18, y is more than or equal to 5 and less than or equal to 20, z is more than or equal to 0 and less than or equal to 10, and the sum of a, b, c, x, y and z is equal to 100. Compared with the prior art, the iron-based nanocrystalline magnetically soft alloy has the advantages of high saturation induction density, low loss and the like.

Description

technical field [0001] The invention relates to an alloy, in particular to an iron-based nanocrystalline soft magnetic alloy and a preparation method thereof. Background technique [0002] Iron-based amorphous and nanocrystalline soft magnetic alloys have excellent comprehensive soft magnetic properties, such as high saturation magnetic inductance, high magnetic permeability, low coercive force, low loss, low excitation current and good stability, and can be used in Distribution transformers, intermediate frequency power transformers and switching power transformer cores, filter reactors, saturable reactors, motor stators and magnetic sensors are one of the most widely used and researched amorphous and nanocrystalline alloys. In addition to amorphous transformers, which is a large application field of iron-based amorphous alloys, iron-based amorphous nanocrystalline soft magnetic alloys can also be used as new motor stators by taking advantage of the two characteristics of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/147C22C38/16C22C45/02B22D11/06
Inventor 张峰
Owner SHANGHAI MICHUANG ELECTRIC DEVICES
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