High-saturated magnetization intensity Fe-based amorphous nanocrystalline soft magnetic alloy and its preparation method

A nanocrystalline soft magnetic and magnetization technology, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problem of low saturation magnetic induction, and achieve the effect of high saturation magnetization

Inactive Publication Date: 2012-10-17
四川大学苏州研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is: to solve the above problems, the present invention provides an iron-based amorphous nanocrystalline soft magnetic alloy with high saturation magnetization, and also disclos

Method used

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  • High-saturated magnetization intensity Fe-based amorphous nanocrystalline soft magnetic alloy and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0029] 1) Composition design and ingredients:

[0030] Proportion raw materials according to the following molar percentages: 85% iron, 1% aluminum, 0.5% copper, 3.5% silicon, 6% boron, and 4% phosphorus, totaling 5kg;

[0031] 2) Master alloy melting:

[0032] Put the prepared raw materials into the crucible of the vacuum intermediate frequency induction furnace, and conduct intermediate frequency induction melting for 4 times, and stir during the melting process to mix the raw materials evenly, and pour them into alloy ingots to obtain alloy ingots with uniform composition;

[0033] 3) Master alloy broken:

[0034] After mechanically crushing the alloy ingot, put the broken block alloy into acetone solution and alcohol solution for ultrasonic cleaning, take it out and dry it naturally for use;

[0035] 4) Single-rod quenching belt:

[0036] Put the cleaned block alloy into the quartz tube of the quenching strip-making equipment, melt it by induction heating method, and u...

Embodiment 2

[0041] 1) Proportion raw materials according to the following molar percentages: 82% iron, 1% aluminum, 0.5% titanium, 0.5% copper, 0.5% silicon, 8% boron, and 4% phosphorus, totaling 5kg;

[0042] 2) Put the prepared raw materials into the crucible of the vacuum intermediate frequency induction furnace, conduct intermediate frequency induction melting 4 times, and stir during the melting process to mix the raw materials evenly, and pour them into alloy ingots to obtain alloy ingots with uniform composition;

[0043] 3) After mechanically crushing the alloy ingot, put the broken block alloy into acetone solution and alcohol solution for ultrasonic cleaning, take it out and dry it naturally for use;

[0044] 4) Put the cleaned bulk alloy into the quartz tube of the quenching strip-making equipment, melt it by induction heating, and use the single-roller quenching and stripping process to make strips in the air at a speed of 30m / s to obtain An amorphous alloy strip with a width ...

Embodiment 3

[0048] 1) Proportion raw materials according to the following molar percentages: 79% iron, 1.5% chromium, 1.5% manganese, 1.5% copper, 5% silicon, 7.5% boron, and 4% phosphorus, totaling 5kg;

[0049] 2) Put the prepared raw materials into the crucible of the vacuum intermediate frequency induction furnace, conduct intermediate frequency induction melting for 3 times, and stir during the melting process to mix the raw materials evenly, and pour them into alloy ingots to obtain alloy ingots with uniform composition;

[0050] 3) After mechanically crushing the alloy ingot, put the broken block alloy into acetone solution and alcohol solution for ultrasonic cleaning, take it out and dry it naturally for use;

[0051] 4) Put the cleaned bulk alloy into the quartz tube of the quenching strip-making equipment, melt it by induction heating, and use the single-roller quenching and stripping process to make strips in the air at a speed of 35m / s. A thin strip of amorphous alloy with a w...

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Abstract

The invention discloses a high-saturated magnetization intensity Fe-based amorphous nanocrystalline soft magnetic alloy and its preparation method. The alloy is prepared from the following components, by mole, 68-90% of Fe, 0-6% of X, 0-2% of Cu, 3-20% of Si, 4-20% of B and 0-10% of P, wherein the X comprises one or more of Al, Cr, Mn and Ti. The preparation method of the alloy comprises the technological steps of component designing and burdening, mother alloy melting, mother alloy fragmentation, band preparation through single-roller quenching, and band nanocrystallization processing. The preparation method of the invention can solve a problem of low saturated magnetic induction intensity of present Fe-based amorphous nanocrystalline soft magnetic alloys.

Description

technical field [0001] The invention relates 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. Because the application of iron-based amorphous and nanocrystalline alloys has great economic significance and social benefits, research on amorphous and nanocrystalline alloys has always been a research hotspot in the field of materia...

Claims

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Application Information

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IPC IPC(8): C22C45/02B22D11/06H01F1/153
Inventor 陆伟
Owner 四川大学苏州研究院
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