CN103469118A - Amorphous ferroalloy iron core for energy saving motor and preparation method thereof - Google Patents
Amorphous ferroalloy iron core for energy saving motor and preparation method thereof Download PDFInfo
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- CN103469118A CN103469118A CN2013103142156A CN201310314215A CN103469118A CN 103469118 A CN103469118 A CN 103469118A CN 2013103142156 A CN2013103142156 A CN 2013103142156A CN 201310314215 A CN201310314215 A CN 201310314215A CN 103469118 A CN103469118 A CN 103469118A
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Abstract
The invention relates to an amorphous ferroalloy iron core for an energy saving motor and a preparation method thereof. The iron core is prepared from the following alloy in an atomic ratio: (Fe1-x-yTbxCuy)1-a-b-c-d-e(Si1-zZrz)aBbCcOdFe, wherein x is in a range of 0.03 to 0.04, y is in a range of 0.13 to 0.17, z is in a range of 0.02 to 0.04, a is in a range of 0.2 to 0.25, b is in a range of 0.03 to 0.05, c is in a range of 0.01 to 0.02, d is in a range of 0.01 to 0.015, and e is in a range of 0.005 to 0.01. The method comprises the following steps: (1) preparation of the alloy; and (2) preparation of the iron core. According to the invention, Tb and Cu are used to replace a part of Fe and Zr is used to replace a part of Si so as to improve soft magnetic properties and magnetic saturation intensity of the amorphous ferroalloy iron core, and nonmetal elements consisting of O, F, B and the like are doped in the iron core to improve internal resistance of the iron core. Thus, the iron core has good magnetic properties and low energy loss when used in the energy saving motor.
Description
Affiliated technical field
The present invention relates to amorphous iron alloy iron core of energy-saving electric machine and preparation method thereof.
Background technology
Along with process of industrialization is accelerated, energy problem has become the focal issue of contemporary society, and the research of energy-saving material has become an importance of investigation of materials.Motor is as one of important foundation part of all kinds of machineries, and its efficiency has great effect to save energy and even economic Sustainable development.
Traditional AC/DC generator and electric motor adopt siliconized plate as stator core usually, resistivity and the magnetic permeability of described siliconized plate are lower, the magnetic field eddy current formed is larger, cause iron loss larger, especially in high-frequency electric machines, iron loss is larger, cause motor because temperature rise is higher, to make motor performance reduce, electrical machinery life shortens; This kind of motor generally can not use under the high frequency of several kilo hertzs.Iron core prepared by existing siliconized plate can not meet the energy-efficient requirement of energy-saving electric machine.
Amorphous alloy is the type material that utilizes flash set technology to manufacture, there is excellent soft magnetic performance, i.e. high saturated magnetic induction, high permeability, low-coercivity, high resistivity and extremely low eddying effect and excellent corrosion resistance nature etc. and be widely used in the fields such as microelectronics, machinery, power engineering.Utilize the These characteristics of amorphous alloy, prior art adopts amorphous alloy to substitute the stator core that traditional siliconized plate, permalloy and ferrite are manufactured motor, has effectively overcome the above-mentioned shortcoming of conventional motors.
But with silicon steel, compare, still there is its weak point in Fe-based amorphous alloy, and saturation induction density is relatively low.
Summary of the invention
The invention provides amorphous iron alloy iron core of energy-saving electric machine and preparation method thereof, this amorphous iron alloy iron core, have excellent soft magnetic performance and high magnetic flux density.
To achieve these goals, the amorphous iron alloy iron core of energy-saving electric machine provided by the invention is made by the alloy of following atom ratio: (Fe
1-x-ytb
xcu
y)
1-a-b-c-d-e(Si
1-zzr
z)
ab
bc
co
df
e, x=0.03-0.04 wherein, y=0.13-0.17, z=0.02-0.04, a=0.2-0.25, b=0.03-0.05, c=0.01-0.02, d=0.01-0.015, e=0.005-0.01.
To achieve these goals, and invent the preparation method that a kind of above-mentioned amorphous iron alloy iron core also is provided, the method comprises the steps:
(1) prepare alloy
According to above-mentioned atom ratio, starting material are mixed, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuum, melt back 3-5 time, each magnetic agitation 1-3min, after melting completes, notes obtain alloy cast ingot in water cooled copper mould, and wherein metallic element Fe, Tb, Cu, Zr, Si, C adopt purity to be not less than 99.8% raw material, and B, O and F adopt respectively the form of ferro-boron, ferric oxide and ferric fluoride to add;
Ingot casting is placed in to vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, all after fusing, impose the induction stirring refining until starting material, at CO
2and H
2under the mixed atmosphere protection; molten alloy is ejected into to roller speed for rapid quench on 20-30m/s copper roller; jet pressure is 1-1.5Mpa; obtaining width is the Fe base amorphous alloy strip that 15-35mm, thickness are 15-20 μ m; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than strictly being limited in CO
2: H
2=1: 4-1: 5;
(2) prepare iron core
Above-mentioned alloy thin band is stacked into to preformed member according to the core design size; under argon shield; at the temperature lower than crystallization temperature 30-40K; isothermal annealing 1-1.5h; then the amorphous alloy laminated stack after annealing is made to mass-impregnation with insullac and binding agent and process, obtain the prepared iron core of iron-based non-crystalline alloy band of the present invention.
Amorphous iron alloy iron core prepared by the present invention, adopt Tb and Cu Substitute For Partial Fe, and employing Zr Substitute For Partial Si has improved soft magnetic performance and the magnetic saturation intensity of material, the non-metallic elements such as O, F, B that adulterate in material, the internal resistance that improves material.Therefore, when this iron core is used for energy-saving electric machine, there is magnetic property and lower energy waste preferably.
Embodiment
Embodiment mono-
The amorphous iron alloy iron core of the energy-saving electric machine of the present embodiment is made by the alloy of following atom ratio: (Fe
0.84tb
0.03cu
0.13)
0.745(Si
0.98zr
0.02)
0.2b
0.03c
0.01o
0.01f
0.005.
According to above-mentioned atom ratio, starting material are mixed, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuum, melt back 3 times, each magnetic agitation 3min, after melting completes, notes obtain alloy cast ingot in water cooled copper mould, and wherein metallic element Fe, Tb, Cu, Zr, Si, C adopt purity to be not less than 99.8% raw material, and B, O and F adopt respectively the form of ferro-boron, ferric oxide and ferric fluoride to add.
Ingot casting is placed in to vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, all after fusing, impose the induction stirring refining until starting material, at CO
2and H
2under the mixed atmosphere protection; molten alloy is ejected into to roller speed for rapid quench on 20m/s copper roller; jet pressure is 1Mpa; obtaining width is the Fe base amorphous alloy strip that 15mm, thickness are 15 μ m; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than strictly being limited in CO
2: H
2=1: 4.
Above-mentioned alloy thin band is stacked into to preformed member according to the core design size; under argon shield; at the temperature lower than crystallization temperature 30K; isothermal annealing 1h; then the amorphous alloy laminated stack after annealing is made to mass-impregnation with insullac and binding agent and process, obtain the prepared iron core of iron-based non-crystalline alloy band of the present invention.
Embodiment bis-
The amorphous iron alloy iron core of the energy-saving electric machine of the present embodiment is made by the alloy of following atom ratio: (Fe
0.79tb
0.04cu
0.17)
0.655(Si
0.96zr
0.04)
0.25b
0.05c
0.02o
0.015f
0.01.
According to above-mentioned atom ratio, starting material are mixed, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuum, melt back 5 times, each magnetic agitation 1min, after melting completes, notes obtain alloy cast ingot in water cooled copper mould, and wherein metallic element Fe, Tb, Cu, Zr, Si, C adopt purity to be not less than 99.8% raw material, and B, O and F adopt respectively the form of ferro-boron, ferric oxide and ferric fluoride to add.
Ingot casting is placed in to vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, all after fusing, impose the induction stirring refining until starting material, at CO
2and H
2under the mixed atmosphere protection; molten alloy is ejected into to roller speed for rapid quench on 30m/s copper roller; jet pressure is 1.5Mpa; obtaining width is the Fe base amorphous alloy strip that 35mm, thickness are 20 μ m; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than strictly being limited in CO
2: H
2=1: 5.
Above-mentioned alloy thin band is stacked into to preformed member according to the core design size; under argon shield; at the temperature lower than crystallization temperature 40K; isothermal annealing 1.5h; then the amorphous alloy laminated stack after annealing is made to mass-impregnation with insullac and binding agent and process, obtain the prepared iron core of iron-based non-crystalline alloy band of the present invention.
Comparative example
According to Fe
64.7co
6cr
2.3mo
2.5b
5.5c
7si
3.3p
8.7the atomic percent proportioning, purity is not less than to 99.5% pure Fe, Co, Ni, Cr, Mo, the Fe-B alloy of metalloid element Si, C and industrial use and Fe-P alloy are configured to raw material by needed different atomic percent, melting repeatedly (at least 4 times) in induction melting furnace, melted alloy spray to cast is in copper mold, and all the other steps are with embodiment 1.
The embodiment 1-2 of identical shaped and size and the iron core of comparative example are carried out to magnetism testing and loss test, tested at 25 ℃, (1) loss measurement adopts the SY8232B-H tester, and test condition is magnetic strength 1.4T, and frequency is 50Hz, is designated as P
14/50.(2) the saturation induction density B of alloy
sadopt the static magnetic performance survey meter, using the saturation induction density B of the magnetic induction density of magnetic field under 800A/m as alloy
s.Test result shows: the loss of embodiment 1-2 relatively example reduces more than 25%, and saturation induction density is relatively more than example raising 15-18%.
Claims (2)
1. the amorphous iron alloy iron core of an energy-saving electric machine, is characterized in that this iron core made by the alloy of following atom ratio: (Fe
1-x-ytb
xcu
y)
1-a-b-c-d-e(Si
1-zzr
z)
ab
bc
co
df
e, x=0.03-0.04 wherein, y=0.13-0.17, z=0.02-0.04, a=0.2-0.25, b=0.03-0.05, c=0.01-0.02, d=0.01-0.015, e=0.005-0.01.
2. the preparation method of the amorphous iron alloy iron core of an energy-saving electric machine as claimed in claim 1, the method comprises the steps:
(1) prepare alloy
According to above-mentioned atom ratio, starting material are mixed, be placed in the melting of magnetic levitation melting stove, melting is carried out under vacuum, melt back 3-5 time, each magnetic agitation 1-3min, after melting completes, notes obtain alloy cast ingot in water cooled copper mould, and wherein metallic element Fe, Tb, Cu, Zr, Si, C adopt purity to be not less than 99.8% raw material, and B, O and F adopt respectively the form of ferro-boron, ferric oxide and ferric fluoride to add;
Ingot casting is placed in to vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, all after fusing, impose the induction stirring refining until starting material, at CO
2and H
2under the mixed atmosphere protection; molten alloy is ejected into to roller speed for rapid quench on 20-30m/s copper roller; jet pressure is 1-1.5Mpa; obtaining width is the Fe base amorphous alloy strip that 15-35mm, thickness are 15-20 μ m; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than strictly being limited in CO
2: H
2=1: 4-1: 5;
(2) prepare iron core
Above-mentioned alloy thin band is stacked into to preformed member according to the core design size; under argon shield; at the temperature lower than crystallization temperature 30-40K; isothermal annealing 1-1.5h; then the amorphous alloy laminated stack after annealing is made to mass-impregnation with insullac and binding agent and process, obtain the prepared iron core of iron-based non-crystalline alloy band of the present invention.
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|---|---|---|---|
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| CN103469118B CN103469118B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820741A (en) * | 2014-03-01 | 2014-05-28 | 南通大青节能科技有限公司 | Permeability alloy for energy-saving motor and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| CN1440317A (en) * | 2000-10-06 | 2003-09-03 | 株式会社三德 | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
| WO2007032531A1 (en) * | 2005-09-16 | 2007-03-22 | Hitachi Metals, Ltd. | Nanocrystalline magnetic alloy, method for producing same, alloy thin band, and magnetic component |
| CN101351571A (en) * | 2006-01-04 | 2009-01-21 | 日立金属株式会社 | Amorphous alloy thin-band, nanocrystalline soft magnetic alloy and magnetic core consisting of nanocrystalline soft magnetic alloy |
| CN101595237A (en) * | 2006-12-04 | 2009-12-02 | 东北泰克诺亚奇股份有限公司 | Amorphous alloy composition |
-
2013
- 2013-07-20 CN CN201310314215.6A patent/CN103469118B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440317A (en) * | 2000-10-06 | 2003-09-03 | 株式会社三德 | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
| WO2007032531A1 (en) * | 2005-09-16 | 2007-03-22 | Hitachi Metals, Ltd. | Nanocrystalline magnetic alloy, method for producing same, alloy thin band, and magnetic component |
| CN101351571A (en) * | 2006-01-04 | 2009-01-21 | 日立金属株式会社 | Amorphous alloy thin-band, nanocrystalline soft magnetic alloy and magnetic core consisting of nanocrystalline soft magnetic alloy |
| CN101595237A (en) * | 2006-12-04 | 2009-12-02 | 东北泰克诺亚奇股份有限公司 | Amorphous alloy composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820741A (en) * | 2014-03-01 | 2014-05-28 | 南通大青节能科技有限公司 | Permeability alloy for energy-saving motor and preparation method thereof |
| CN103820741B (en) * | 2014-03-01 | 2015-11-25 | 南通大青节能科技有限公司 | A kind of mu-metal material for energy-saving electric machine and preparation method thereof |
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| CN103469118B (en) | 2016-01-20 |
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