CN103469118B - Amorphous iron alloy iron core of energy-saving electric machine and preparation method thereof - Google Patents
Amorphous iron alloy iron core of energy-saving electric machine and preparation method thereof Download PDFInfo
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- CN103469118B CN103469118B CN201310314215.6A CN201310314215A CN103469118B CN 103469118 B CN103469118 B CN 103469118B CN 201310314215 A CN201310314215 A CN 201310314215A CN 103469118 B CN103469118 B CN 103469118B
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Abstract
Amorphous iron alloy iron core that the present invention relates to a kind of energy-saving electric machine and preparation method thereof.This iron core is made up of 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, wherein x=0.03-0.04, 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.The method comprises the steps:, and (1) prepares alloy; (2) iron core is prepared.Amorphous iron alloy iron core prepared by the present invention, adopts Tb and Cu Substitute For Partial Fe, and adopt Zr Substitute For Partial Si to improve soft magnetic performance and the magnetic saturation intensity of material, adulterate the non-metallic elements such as O, F, B in the material, improves the internal resistance of material.Therefore, when this iron core is used for energy-saving electric machine, there is good magnetic property and lower energy waste.
Description
Art
The present invention's amorphous iron alloy iron core relating to 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 the important foundation part of all kinds of machinery, and the Sustainable development of its efficiency to save energy and even economy has great effect.
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 to make motor performance reduce because temperature rise is higher, 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 utilizing flash set technology to manufacture, there is excellent soft magnetic performance, namely high saturated magnetic induction, high permeability, low-coercivity, high resistivity and extremely low eddying effect and excellence 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 of traditional siliconized plate, permalloy and ferrite manufacture motor, effectively overcomes the above-mentioned shortcoming of conventional motors.
But compare with silicon steel, still there is its weak point in Fe-based amorphous alloy, namely saturation induction density is relatively low.
Summary of the invention
Amorphous iron alloy iron core that the invention provides energy-saving electric machine and preparation method thereof, this amorphous iron alloy iron core, has 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 up of 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, wherein x=0.03-0.04, 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 invention additionally provides a kind of preparation method of above-mentioned amorphous iron alloy iron core, and the method comprises the steps:
(1) alloy is prepared
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 vacuo, melt back 3-5 time, each magnetic agitation 1-3min, obtain alloy cast ingot in note to water cooled copper mould after melting completes, wherein metallic element Fe, Tb, Cu, Zr, Si, C adopts purity to be not less than the raw material of 99.8%, and B, O and F adopt the form of ferro-boron, ferric oxide and ferric fluoride to add respectively;
Ingot casting is placed in vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, after starting material all melt, impose induction stirring refining, at CO
2and H
2under mixed atmosphere protection; molten alloy is ejected into roller speed for rapid quench on 20-30m/s copper roller; jet pressure is 1-1.5Mpa; obtain the Fe base amorphous alloy strip that width is 15-35mm, thickness is 15-20 μm; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than being strictly limited in CO
2: H
2=1: 4-1: 5;
(2) iron core is prepared
Above-mentioned alloy thin band is become preformed member according to core design sized stacks; under argon shield; at the temperature lower than crystallization temperature 30-40K; isothermal annealing 1-1.5h; then the amorphous alloy laminated stack insullac after annealing and binding agent are done mass-impregnation process, obtain the iron core obtained by iron-based non-crystalline alloy band of the present invention.
Amorphous iron alloy iron core prepared by the present invention, adopts Tb and Cu Substitute For Partial Fe, and adopt Zr Substitute For Partial Si to improve soft magnetic performance and the magnetic saturation intensity of material, adulterate the non-metallic elements such as O, F, B in the material, improves the internal resistance of material.Therefore, when this iron core is used for energy-saving electric machine, there is good magnetic property and lower energy waste.
Embodiment
Embodiment one
The amorphous iron alloy iron core of the energy-saving electric machine of the present embodiment is made up of 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 vacuo, melt back 3 times, each magnetic agitation 3min, obtain alloy cast ingot in note to water cooled copper mould after melting completes, wherein metallic element Fe, Tb, Cu, Zr, Si, C adopts purity to be not less than the raw material of 99.8%, and B, O and F adopt the form of ferro-boron, ferric oxide and ferric fluoride to add respectively.
Ingot casting is placed in vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, after starting material all melt, impose induction stirring refining, at CO
2and H
2under mixed atmosphere protection; molten alloy is ejected into roller speed for rapid quench on 20m/s copper roller; jet pressure is 1Mpa; obtain the Fe base amorphous alloy strip that width is 15mm, thickness is 15 μm; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than being strictly limited in CO
2: H
2=1: 4.
Above-mentioned alloy thin band is become preformed member according to core design sized stacks; under argon shield; at the temperature lower than crystallization temperature 30K; isothermal annealing 1h; then the amorphous alloy laminated stack insullac after annealing and binding agent are done mass-impregnation process, obtain the iron core obtained by iron-based non-crystalline alloy band of the present invention.
Embodiment two
The amorphous iron alloy iron core of the energy-saving electric machine of the present embodiment is made up of 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 vacuo, melt back 5 times, each magnetic agitation 1min, obtain alloy cast ingot in note to water cooled copper mould after melting completes, wherein metallic element Fe, Tb, Cu, Zr, Si, C adopts purity to be not less than the raw material of 99.8%, and B, O and F adopt the form of ferro-boron, ferric oxide and ferric fluoride to add respectively.
Ingot casting is placed in vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, after starting material all melt, impose induction stirring refining, at CO
2and H
2under mixed atmosphere protection; molten alloy is ejected into roller speed for rapid quench on 30m/s copper roller; jet pressure is 1.5Mpa; obtain the Fe base amorphous alloy strip that width is 35mm, thickness is 20 μm; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than being strictly limited in CO
2: H
2=1: 5.
Above-mentioned alloy thin band is become preformed member according to core design sized stacks; under argon shield; at the temperature lower than crystallization temperature 40K; isothermal annealing 1.5h; then the amorphous alloy laminated stack insullac after annealing and binding agent are done mass-impregnation process, obtain the iron core obtained by 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
8.7atomic percent proportioning, purity is not less than the pure Fe of 99.5%, 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 required different atomic percent, in induction melting furnace, melting repeatedly (at least 4 times), melted alloy spray to cast is in copper mold, and all the other steps are with embodiment 1.
Carry out magnetism testing and loss test to same shape and the embodiment 1-2 of size and the iron core of comparative example, test at 25 DEG C, (1) loss measurement adopts 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
sadopting static magnetic performance survey meter, take magnetic field as the saturation induction density B of the magnetic induction density under 800A/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 15-18%.
Claims (2)
1. a preparation method for the amorphous iron alloy iron core of energy-saving electric machine, this iron core is made up of 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, wherein x=0.03-0.04, 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, is characterized in that, the method comprises the steps:
(1) alloy is prepared
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 vacuo, melt back 3-5 time, each magnetic agitation 1-3min, obtain alloy cast ingot in note to water cooled copper mould after melting completes, wherein element of Fe, Tb, Cu, Zr, Si, C adopt purity to be not less than the raw material of 99.8%, and B, O and F adopt the form of ferro-boron, ferric oxide and ferric fluoride to add respectively;
Ingot casting is placed in vacuum intermediate-frequency rapid hardening induction furnace, vacuumizes, pass into argon gas, after starting material all melt, impose induction stirring refining, at CO
2and H
2under mixed atmosphere protection; molten alloy is ejected into roller speed for rapid quench on 20-30m/s copper roller; jet pressure is 1-1.5Mpa; obtain the Fe base amorphous alloy strip that width is 15-35mm, thickness is 15-20 μm; wherein; the ratio of mixed atmosphere is accurately controlled by flow valve, and both flow volume are than being strictly limited in CO
2: H
2=1: 4-1: 5;
(2) iron core is prepared
Above-mentioned alloy thin band is become preformed member according to core design sized stacks; under argon shield; at the temperature lower than crystallization temperature 30-40K; isothermal annealing 1-1.5h; then the amorphous alloy laminated stack insullac after annealing and binding agent are done mass-impregnation process, obtain the iron core obtained by iron-based non-crystalline alloy band.
2. an amorphous iron alloy iron core for energy-saving electric machine, is characterized in that, adopts the method for claim 1 to obtain.
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| 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 |
| 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 |
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| JP5288226B2 (en) * | 2005-09-16 | 2013-09-11 | 日立金属株式会社 | Magnetic alloys, amorphous alloy ribbons, and magnetic parts |
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Patent Citations (3)
| 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 |
| 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 |
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