CN103938030B - A kind of preparation method of Ni-based soft magnetic materials - Google Patents

A kind of preparation method of Ni-based soft magnetic materials Download PDF

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CN103938030B
CN103938030B CN201410177145.9A CN201410177145A CN103938030B CN 103938030 B CN103938030 B CN 103938030B CN 201410177145 A CN201410177145 A CN 201410177145A CN 103938030 B CN103938030 B CN 103938030B
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soft magnetic
melting
alloy
remelting
magnetic materials
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CN103938030A (en
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崔欢耀
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Zhejiang Yinuo Weisheng Information Technology Co ltd
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SHENZHEN TIANRUI TECHNOLOGY Co Ltd
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Abstract

The present invention relates to a kind of preparation method of Ni-based soft magnetic materials, it is characterized in that this soft magnetic materials is made up of the alloy of following atom ratio: (Ni 1-x-yti xzn y) 1-a-b-c(Si 1-zal z) ay bnb cwherein x=0.08-0.16, y=0.25-0.32, z=0.42-0.46, a=0.15-0.18, b=0.02-0.03, c=0.04-0.05, the method comprises the steps: (1) prepares burden, (2) melting ingot, (3) alloy strip is prepared, (4) thermal treatment.Soft magnetic materials prepared by the present invention, adopt Ti and Zn Substitute For Partial Ni to improve the soft magnetic performance of material, doping Y and Nb improves the magnetic saturation intensity of material, and doping Si improves the resistivity of material.Therefore, this material be used for various equipment time in particular for having good soft magnetic performance and lower energy waste during high-frequency apparatus.

Description

A kind of preparation method of Ni-based soft magnetic materials
Art
The present invention relates to a kind of preparation method of Ni-based soft magnetic materials.
Background technology
Along with the development of electron and electrician and ICT (information and communication technology), the application of soft magnetic materials is more and more extensive, especially in Application Areass such as all kinds of transformer, inductance element, filtering devices.At present, be that the soft magnetic metal of representative and alloy material thereof have irreplaceable effect with its high magnetic permeability and saturation induction density in some Application Areas above-mentioned with iron.
Fe-Ni alloy/C is a kind of important metal soft magnetic material; owing to having the features such as high magnetic permeability, low-coercivity, low-loss; be widely used in various iron core and the magnetic shielding part of electron device; the magnetic head etc. of the iron core of the highly sensitive miniature transformer used under being particularly suitable for manufacturing low-intensity magnetic field condition, amplifier, rly., earth leakage circuit-breaker, reactance coil and magnetic recording, sound-track engraving apparatus, becomes the industrial indispensable base mateirals such as communication, broadcast, radar, aerospace, computer and precision meter.
But due to the magnetic strength of Fe-Ni system soft magnetic materials and magnetic permeability counter stress very responsive, the magnetic property of its alloy system is not high, and particularly coercive force and magnetic permeability performance can not meet performance requriements.
Summary of the invention
The invention provides a kind of preparation method of Ni-based soft magnetic materials, soft magnetic materials tool high magnetic permeability, low-coercivity and high resistivity prepared by the method.
To achieve these goals, the preparation method of a kind of above-mentioned Ni-based soft magnetic materials provided by the invention, is characterized in that this soft magnetic materials is made up of the alloy of following atom ratio: (Ni 1-x-yti xzn y) 1-a-b-c(Si 1-zal z) ay bnb c, wherein x=0.08-0.16, y=0.25-0.32, z=0.42-0.46, a=0.15-0.18, b=0.02-0.03, c=0.04-0.05, the method comprises the steps:
(1) prepare burden
Prepare raw material according to above-mentioned atom ratio, wherein the purity of all raw metals is all greater than 99.9%, and silicon is prepared burden in the mode of silumin, and Y prepares burden in the mode of yttrium nickel master alloy;
(2) melting ingot
Mixed by raw material, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuo, melting vacuum 1 × 10 -4-10 -3pa, smelting temperature 1560-1620 DEG C, melt back 3-5 time, each magnetic agitation 1-3min, obtains alloy cast ingot in note to water cooled copper mould after melting completes;
(3) alloy strip is prepared
Above-mentioned alloy cast ingot is put into remelting tubular type crucible and carry out remelting, described remelting tubular type crucible is placed in vacuum induction forming furnace, remelting temperature is 1540-1560 DEG C, then remelting body is blown down through test tube aperture, the speed of rotation adjusting single roller spun furnace is 1500-2000 rev/min, makes the melt fallen be frozen into banded formation continuous print metal strip once the roll surface touching high speed rotating at once;
(4) thermal treatment
Preformed member is cut into by stacking for above-mentioned alloy strip size; under argon shield, be warming up to 750-800 DEG C with the heat-up rate of 5-10 DEG C/min, after insulation 4-6h; with the cooling rate isothermal annealing of 12-15 DEG C/min to room temperature, obtain soft magnetic materials of the present invention.
Soft magnetic materials prepared by the present invention, adopt Ti and Zn Substitute For Partial Ni to improve the soft magnetic performance of material, doping Y and Nb improves the magnetic saturation intensity of material, and doping Si improves the resistivity of material.Therefore, this material be used for various equipment time in particular for having good soft magnetic performance and lower energy waste during high-frequency apparatus.
Embodiment
Embodiment one
The Ni-based soft magnetic materials of the present embodiment is made up of the alloy of following atom ratio: (Ni 0.67ti 0.08zn 0.25) 0.79(Si 0.58al 0.42) 0.15y 0.02nb 0.04.
Prepare raw material according to above-mentioned atom ratio, wherein the purity of all raw metals is all greater than 99.9%, and silicon is prepared burden in the mode of silumin, and Y prepares burden in the mode of yttrium nickel master alloy.
Mixed by raw material, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuo, melting vacuum 1 × 10 -4pa, smelting temperature 1560 DEG C, melt back 5 times, each magnetic agitation 3min, obtains alloy cast ingot in note to water cooled copper mould after melting completes.
Above-mentioned alloy cast ingot is put into remelting tubular type crucible and carry out remelting, described remelting tubular type crucible is placed in vacuum induction forming furnace, remelting temperature is 1540 DEG C, then remelting body is blown down through test tube aperture, the speed of rotation adjusting single roller spun furnace is 1500 revs/min, makes the melt fallen be frozen into banded formation continuous print metal strip once the roll surface touching high speed rotating at once.
Cut into preformed member by stacking for above-mentioned alloy strip size, under argon shield, be warming up to 750 DEG C with the heat-up rate of 5 DEG C/min, after insulation 6h, with the cooling rate isothermal annealing of 12 DEG C/min to room temperature, obtain soft magnetic materials of the present invention.
Embodiment two
The Ni-based soft magnetic materials of the present embodiment is made up of the alloy of following atom ratio: (Ni 0.52ti 0.16zn 0.32) 0.74(Si 0.54al 0.46) 0.18y 0.03nb 0.05.
Prepare raw material according to above-mentioned atom ratio, wherein the purity of all raw metals is all greater than 99.9%, and silicon is prepared burden in the mode of silumin, and Y prepares burden in the mode of yttrium nickel master alloy.
Mixed by raw material, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuo, melting vacuum 1 × 10 -3pa, smelting temperature 1620 DEG C, melt back 3 times, each magnetic agitation 1min, obtains alloy cast ingot in note to water cooled copper mould after melting completes.
Above-mentioned alloy cast ingot is put into remelting tubular type crucible and carry out remelting, described remelting tubular type crucible is placed in vacuum induction forming furnace, remelting temperature is 1560 DEG C, then remelting body is blown down through test tube aperture, the speed of rotation adjusting single roller spun furnace is 2000 revs/min, makes the melt fallen be frozen into banded formation continuous print metal strip once the roll surface touching high speed rotating at once.
Cut into preformed member by stacking for above-mentioned alloy strip size, under argon shield, be warming up to 800 DEG C with the heat-up rate of 10 DEG C/min, after insulation 4h, with the cooling rate isothermal annealing of 15 DEG C/min to room temperature, obtain soft magnetic materials of the present invention.
Comparative example
Adopt following batching: be: 3.16%Si, 1.90%Ni, 0.41%Al and 1.24%Ti that surplus is Fe by weight percentage.Technical process is: composition proportion-vacuum-melting-preparation alloy strip-stacking excision forming.
Carry out magnetism testing and loss test to same shape and the embodiment 1-2 of size and the soft magnetic materials of comparative example, test at 25 DEG C, (1) loss measurement adopts SY8232B-H tester, and test condition is magnetic strength 1.5T, and frequency is 200Hz.(2) the saturation induction density B of alloy sadopting static magnetic performance survey meter, take magnetic field as the saturation induction density B of the magnetic induction density under 1000A/m as alloy s.Test result shows: the loss relatively example reduction by more than 25% of embodiment 1-2, saturation induction density relatively example improves more than 25-30%.

Claims (1)

1. a preparation method for Ni-based soft magnetic materials, is characterized in that this soft magnetic materials is made up of the alloy of following atom ratio: (Ni 1-x-yti xzn y) 1-a-b-c(Si 1-zal z) ay bnb c, wherein x=0.08-0.16, y=0.25-0.32, z=0.42-0.46, a=0.15-0.18, b=0.02-0.03, c=0.04-0.05, the method comprises the steps:
(1) prepare burden
Prepare raw material according to above-mentioned atom ratio, wherein the purity of all raw metals is all greater than 99.9%, and silicon is prepared burden in the mode of silumin, and Y prepares burden in the mode of yttrium nickel master alloy;
(2) melting ingot
Mixed by raw material, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuo, melting vacuum 1 × 10 -4-10 -3pa, smelting temperature 1560-1620 DEG C, melt back 3-5 time, each magnetic agitation 1-3min, obtains alloy cast ingot in note to water cooled copper mould after melting completes;
(3) alloy strip is prepared
Above-mentioned alloy cast ingot is put into remelting tubular type crucible and carry out remelting, described remelting tubular type crucible is placed in vacuum induction forming furnace, remelting temperature is 1540-1560 DEG C, then remelting body is blown down through test tube aperture, the speed of rotation adjusting single roller spun furnace is 1500-2000 rev/min, makes the melt fallen be frozen into banded formation continuous print metal strip once the roll surface touching high speed rotating at once;
(4) thermal treatment
Preformed member is cut into by stacking for above-mentioned alloy strip size; under argon shield, be warming up to 750-800 DEG C with the heat-up rate of 5-10 DEG C/min, after insulation 4-6h; with the cooling rate isothermal annealing of 12-15 DEG C/min to room temperature, obtain described magnetically soft alloy material.
CN201410177145.9A 2014-04-29 2014-04-29 A kind of preparation method of Ni-based soft magnetic materials Expired - Fee Related CN103938030B (en)

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CN104439235B (en) * 2014-12-20 2017-03-29 珠海嘉磁电子有限公司 A kind of preparation method of compound soft magnetic material
CN104451216B (en) * 2015-01-17 2017-05-31 佛山市三水精英五金制品有限公司 A kind of preparation method of resistant to elevated temperatures nickel cobalt base soft magnetic materials
CN106011506B (en) * 2016-07-01 2017-10-20 河南理工大学 A kind of Ni-based hydrogen bearing alloy of boron containing rare earth magnesium prepares manufacturing process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886192A (en) * 2010-06-23 2010-11-17 北京科技大学 Method for preparing high-performance iron nickel magnetically soft alloy by using powder metallurgy process
CN103221999A (en) * 2010-11-22 2013-07-24 山阳特殊制钢株式会社 Alloy for seed layer of magnetic recording medium, and sputtering target material

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JPH07180003A (en) * 1993-12-21 1995-07-18 Nippon Steel Corp Fe-ni magnetic alloy excellent in hot workability and magnetic property
JP2005150381A (en) * 2003-11-14 2005-06-09 Daido Steel Co Ltd Dust core

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886192A (en) * 2010-06-23 2010-11-17 北京科技大学 Method for preparing high-performance iron nickel magnetically soft alloy by using powder metallurgy process
CN103221999A (en) * 2010-11-22 2013-07-24 山阳特殊制钢株式会社 Alloy for seed layer of magnetic recording medium, and sputtering target material

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