High-saturation-magnetization iron-base amorphous nanocrystal soft magnetic alloy and preparation method thereof

A nanocrystalline soft magnetic and magnetization technology, applied in the direction of magnetic materials, manufacturing tools, magnetic objects, etc., can solve the deterioration of soft magnetic properties, the decline of the amorphous formation ability of nanocrystalline alloy precursors, and the difficulty in preparing amorphous strips, etc. problem, to achieve the effect of increasing Fe content and increasing saturation magnetization

Inactive Publication Date: 2015-04-29
SHANGHAI HANTAO NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reduction of the content of these metalloid elements leads to the decrease of the amorphous-forming ability of the nanocrystalline alloy precursor (amorphous), which brings difficulties in the preparation of amorphous ribbons and leads to the deterioration of soft magnetic properties.

Method used

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  • High-saturation-magnetization iron-base amorphous nanocrystal soft magnetic alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, ferrosilicon, ferroboron, ferrophosphorus, iron, copper, aluminum and other raw materials are configured in a certain proportion as Fe 85 al 1 Cu 0.5 Si 3.5 B 6 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 4 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 hea...

Embodiment 2

[0018] Ferro-silicon, ferro-boron, ferro-phosphorus, iron, copper, aluminum, titanium and other raw materials are configured in a certain proportion as Fe 82 al 1 Ti 0.5 Cu 0.5 Si 4 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 4 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 30m / s in the air to obtain an amorphous thin strip with a strip width of 20mm 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...

Embodiment 3

[0020] Ferro-silicon, ferro-boron, ferro-phosphorus, iron, copper, aluminum and other raw materials are configured in a certain proportion as Fe 79 Cr 1.5 mn 1.5 Cu 1.5 Si 5 8 7.5 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 25mm 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 o...

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Abstract

The invention relates to a high-saturation-magnetization iron-base amorphous nanocrystal soft magnetic alloy and a preparation method thereof. The alloy is expressed as FeaMbCucSixByPz, wherein M is one or more of Al, Cr, Mn, Ti and V; and 68<=a<=90, 0<=b<=6, 0<=c<=2, 3<=x<=20, 4<=y<=20, 0<=z<=10, and a+b+c+x+y+z=100. Compared with the prior art, the product has the advantages of high saturation magnetization and the like.

Description

technical field [0001] The invention relates to an amorphous nanocrystalline alloy material, in particular to an iron-based amorphous nanocrystalline soft magnetic alloy with high saturation magnetization 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. [0003] Because the application of iron-based amorphous and nanocrystalline alloys has great economic significance and social benefits, research on amorphous and nanocrysta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22D11/06C21D9/54H01F1/153
Inventor 张峰
Owner SHANGHAI HANTAO NANO TECH
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