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Iron-base multiphase magnetic alloy material and preparation method thereof

A technology of magnetic alloys and alloy materials, which is applied in the directions of magnetic materials, magnetic objects, electrical components, etc., can solve problems such as difficult operation, achieve good performance, facilitate industrial production, and simple preparation process.

Inactive Publication Date: 2015-02-25
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the boiling point of Te in the alloy system is 1390°C, and the boiling point of S is 444.674°C, so it is difficult to operate when melting

Method used

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  • Iron-base multiphase magnetic alloy material and preparation method thereof

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Effect test

Embodiment 1

[0026] The preparation method of the iron-based multiphase magnetic alloy material of the present invention, the specific steps are as follows:

[0027] (1) First, according to the weight percentage of each component: Gd 3.0%, Si 1.0%, Al 1.0%, B 3.0%, Re 0.05%, Tb 0.01%, Co 1.0%, the rest is Fe for batching, raw material Si , Al, B, Re, Tb, Co, Fe have a purity greater than 99.9%, Gd is added in the form of an iron-gadolinium master alloy, and the weight percentage of Gd in the iron-gadolinium alloy is 35%;

[0028] (2) Put the raw materials into a vacuum induction furnace for melting, the melting temperature is 1580°C, pour and cool to obtain the master alloy,

[0029] (3) Then put the master alloy into a remelting tubular crucible for remelting, the remelting temperature is 1560°C, the remelting tubular crucible is placed in a vacuum induction forming furnace, and the top of the remelting tubular crucible is placed At 3mm below the rim of the vacuum induction forming furna...

Embodiment 2

[0032] The weight percent of each component in the iron-based multiphase magnetic alloy material is: Gd 6.0%, Si 3.0%, Al 3.0%, B 6.0%, Re 0.09%, Tb0.03%, Co 3.0%, and the rest is Fe. Its preparation process is with embodiment one. The volume share of nano crystal grains in the obtained alloy material is 40%.

Embodiment 3

[0034] The weight percentage of each component in the iron-based multiphase magnetic alloy material is: Gd 5.0%, Si 2.0%, Al 2.0%, B 4.0%, Re 0.07%, Tb 0.02%, Co 2.0%, and the rest is Fe. Its preparation process is with embodiment one. The volume share of nano crystal grains in the obtained alloy material is 35%.

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Abstract

The invention provides an iron-base multiphase magnetic alloy and a preparation method thereof. The alloy not only has low iron loss and high tenacity but also is easy to melt. The preparation method has simple process and low production cost and is suitable for industrial production. The alloy material comprises the following components by weight percent: 3.0-6.0% of Gd, 1.0-3.0% of Si, 1.0-3.0% of Al, 3.0-6.0% of B, 0.05-0.09% of Re, 0.01-0.03% of Tb, 1.0-3.0% of Co and the balance of Fe.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and relates to an iron-based multiphase magnetic alloy and a preparation method thereof. Background technique [0002] Application No. 200510128543.2 provides a thin strip of Fe-based amorphous alloy with excellent soft magnetic properties under alternating current. It sprays molten alloy onto a moving cooling substrate through a pouring nozzle with a slot-like opening to make it Obtained by rapid cooling and solidification, the composition of the ribbon is Fe: 78% to 86%, Si: 2% to less than 4%, B: 2% to 15%, C: 0.02% in atomic % The above 4% or less, one or more of P, As, Bi, S, Se, Te represented by the symbol M is M: 1% to 14% and B+M: 12% to 20%, and When the maximum value of iron loss after annealing at each location in the width direction of the strip is expressed as Wmax and the minimum value is expressed as Wmin, (Wmax-Wmin) / Wmin is 0.4 or less. An extremely thin oxide layer wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/047C22C38/10C22C33/06
Inventor 王玲赵浩峰刘光宇林莹莹郑泽昌张金花陆阳平邱奕婷张咏汤朦
Owner NANJING UNIV OF INFORMATION SCI & TECH
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