Iron-based sub-microcrystal alloy material for soft magnetic thin strip and preparation method of iron-based sub-microcrystal alloy material

An alloy material and soft magnetic technology, which is applied in the field of iron-based submicrocrystalline soft magnetic thin strip alloy material and its preparation, can solve the problems of low coercive force, high cost, and complicated preparation process, so as to reduce internal stress and improve toughness , The effect of simple preparation process

Inactive Publication Date: 2012-12-19
SHANXI SANYIQIANG MAGNETIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soft magnetic Fe-based alloy thin strip has a high saturation magnetic flux density of more than 1.7T and a low coercive force, but it needs to be heat-treated in an atmosphere with an oxygen concentration of 6-18%, and the preparation process is complicated and the cost is high

Method used

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  • Iron-based sub-microcrystal alloy material for soft magnetic thin strip and preparation method of iron-based sub-microcrystal alloy material
  • Iron-based sub-microcrystal alloy material for soft magnetic thin strip and preparation method of iron-based sub-microcrystal alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Fe-based submicrocrystalline soft magnetic ribbon alloy material

[0022] Recipe 1

[0023] The components and their weight percentages are as follows: Gd 4%, Mn 3%, Ni 1%, Al 2%, Zn 0.5%, Pd 0.01%, Ho 0.01%, Ge 0.01%, and the rest is Fe.

[0024] Recipe 2

[0025] The components and their weight percentages are as follows: Gd 7%, Mn 5%, Ni 3%, Al 4%, Zn 0.9%, Pd 0.05%, Ho 0.05%, Ge 0.05%, and the rest is Fe.

[0026] Recipe 3

[0027] The components and their weight percentages are as follows: Gd 5%, Mn 4%, Ni 2%, Al 3%, Zn 0.7%, Pd 0.04%, Ho 0.04%, Ge 0.03%, and the rest is Fe.

[0028] Recipe 4

[0029] The components and their weight percentages are as follows: Gd 2%, Mn 2%, Ni 0.5%, Al 1%, Zn 0.3%, Pd 0.005%, Ho 0.005%, Ge 0.005%, and the rest is Fe.

[0030] Recipe 5

[0031] The components and their weight percentages are as follows: Gd 8%, Mn 7%, Ni 4%, Al 5%, Zn 1%, Pd 0.07%, Ho 0.06%, Ge 0.06%, and the rest is Fe.

[0032] Wherein formula 4 an...

Embodiment 2

[0033] Embodiment 2 The preparation method of iron-based submicrocrystalline soft magnetic strip alloy material

Embodiment 1

[0034] Five kinds of formulas among the embodiment 1 all can adopt following method to prepare:

[0035] Method one:

[0036] According to the alloy composition, the purity of the raw materials Mn, Ni, Al, Zn, Pd, Ho, Ge, Fe is greater than 99.9%, Gd is added in the form of iron-gadolinium alloy, and the weight percentage of Gd in the iron-gadolinium alloy is 35%;

[0037] Put the prepared materials of each formula into a vacuum induction furnace for melting, the melting temperature is 1540°C, and the master alloy is obtained after pouring and cooling;

[0038] The remelting tubular crucible is placed in a vacuum induction forming furnace, and its top is placed 3 mm below the runner rim of the vacuum induction forming furnace. A refractory plunger that can move up and down is placed in the remelting tubular crucible, The gap between the refractory plunger and the inner wall of the remelting tubular crucible is 0.7mm. The master alloy is placed on the top of the refractory plu...

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Abstract

The invention provides an iron-based sub-microcrystal alloy material for a soft magnetic thin strip, and a preparation method of the iron-based sub-microcrystal alloy material, belonging to the technical field of metal materials. The alloy material comprises the following components by weight percentage: 4%-7% Gd (Gadolinium), 3%-5% Mn (Manganese), 1%-3% Ni (Nickel), 12%-4% Al (Aluminum), 0.5%-0.9% Zn (Zinc), 0.01%-0.05% Pd (Palladium), 0.01%-0.05% Ho (Holmium), 0.01%-0.05% Ge (Germanium), and the balance of Fe (Ferrum); the preparation method comprises the following steps of: dosing; putting raw materials into a vacuum induction furnace; smelting the raw materials at a temperature between 1530 DEG C and 1550 DEG C, so as to obtain a master alloy; then re-melting the master alloy at a temperature between 1510 DEG C and 1530 DEG C; preparing an alloy thin strip; then heating the alloy thin strip in a nitrogen furnace to a temperature between 180 DEG C and 200 DEG C; preserving heat for 2-3 hours; and preserving heat for 1-1.5 hours at a temperature between 350 DEG C and 380 DEG C, thus obtaining the iron-based sub-microcrystal alloy material for the soft magnetic thin strip. The iron-based sub-microcrystal alloy material for the soft magnetic thin strip prepared by the invention has high saturation flux density.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to an iron-based submicrocrystalline soft magnetic strip alloy material and a preparation method thereof. Background technique [0002] ZL201080004519.7 discloses a soft magnetic alloy strip, the alloy strip has Fe100-x-y-zAxByXz (A is Cu and / or Au, X is selected from Si, S, C, P, Al, Ge, Ga and at least one element in Be, x, y and z are numbers satisfying the conditions of 0<x≤5, 10≤y≤22, 1≤z≤10 and x+y+z≤25 in atomic % respectively ) has a parent phase in which fine crystal grains with an average particle diameter of 60 nm or less are dispersed at a volume fraction of 50% or more, and the B concentration of the oxide film formed on the surface is lower than the average B concentration of the parent phase. This application document also discloses the method for manufacturing soft magnetic alloy thin strip: (1) by spraying the molten liquid of the alloy with above-ment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147C22C38/08C22C45/02B22D11/06
Inventor 孙锐张咏邱奕婷郑泽昌陆阳平刘光宇林莹莹张金花
Owner SHANXI SANYIQIANG MAGNETIC IND
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