CN108987011A - Compound bonded permanent magnet - Google Patents
Compound bonded permanent magnet Download PDFInfo
- Publication number
- CN108987011A CN108987011A CN201710403060.1A CN201710403060A CN108987011A CN 108987011 A CN108987011 A CN 108987011A CN 201710403060 A CN201710403060 A CN 201710403060A CN 108987011 A CN108987011 A CN 108987011A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- magnet
- rare earth
- powder
- rare
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 150000001875 compounds Chemical group 0.000 title claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 44
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 26
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 26
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 20
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000640 Fe alloy Inorganic materials 0.000 claims abstract description 11
- MTRJKZUDDJZTLA-UHFFFAOYSA-N iron yttrium Chemical compound [Fe].[Y] MTRJKZUDDJZTLA-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000006247 magnetic powder Substances 0.000 claims abstract description 10
- 239000011787 zinc oxide Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000000470 constituent Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028391 Musculoskeletal Pain Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000007613 Shoulder Pain Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/0533—Alloys characterised by their composition containing rare earth metals in a bonding agent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention proposes a kind of compound bonded permanent magnets, including rare-earth bond magnet layer and neodymium iron boron binding magnet layer, two layers of compoiste adhering forms, the rare-earth bond magnet is that rare earth permanent magnet powder and binder are bonded according to the ratio of mass fraction 9:1, the rare earth permanent magnet powder is made of rare earth element Sm, Fe, M, Si and N element, and wherein M is at least one of Be, Cr, Al, Mo；The neodymium iron boron binding magnet NdFeB magnetic powder, yttrium iron alloy, aluminium oxide, manganese oxide, zinc oxide, thermosetting adhesive.Working condition requirement of the invention is low, and cost of material to can help to flexible and efficient development magnet generation preparation work, and helps to reduce the production cost of magnet also compared with conventional magnet relative moderate.
Description
Technical field
The present invention relates to field of compound material, particularly relate to a kind of compound bonded permanent magnet.
Background technique
Today of rapid development of information technology, electronic product bring huge convenience to the mankind.Meanwhile electromagnetic radiation is made
At pollution also at the another overall situation problem of facing mankind, electromagnetic pollution has become worldwide public hazards.World health group
Knit the fourth-largest pollution being classified as after water pollution, atmosphere pollution, noise pollution.United Nations Conference on the Human Environment is also
It is classified as one of environmental protection project.
Scientific circles are own to be confirmed, is driven or is generated such as the article or substance of energy using energy, can discharge on its periphery
Electromagnetic wave out is seen everywhere electric equipment products among daily life, such as: TV, computer, mobile phone, electric light, hair drier
And micro-wave oven etc., as long as can all issue certain electromagnetic wave after electric equipment products are powered.According to medical report, it is chronically exposed to and is higher than
Electromagnetic wave standard value person is easy to feel tired physical fatigue, eyes, shoulder pain, headache etc., also will cause under immunity function what is more
How the diseases such as drop, leukaemia, tumour ... therefore obstruct, dissipation electromagnetic wave, reduce injury of the electromagnetic wave to human body, have been existing
For important topic in people's life.
Countries in the world all attach great importance to the electromagnetic environment to become increasingly complex and its caused by influence.Electromagnetic environment is protected
The new disciplines field rapidly developed as one, electromagnetic radiation are not seen, be can not touch, and are referred to as stealthy killer, therefore not
Cause the extensive attention of people, in order to protect environment, protection human health, ensure information safety, it is necessary to be subject to electromagnetic radiation
Protection, the protection of electromagnetic radiation pollution have been very urgent.
With the high speed development of modern electronics industry and information industry, electromagenetic wave radiation that electronic product generates and its mutually
Interference, it has also become a kind of serious environmental pollution, some developed countries and international organization have promulgated control electromagenetic wave radiation
And the electromagnetic compatibility standard of Electromagnetic Interference was carried out inhibiting from 1998 by the regulation of interference, China, and from January 1 in 2000
It rises day and enforces.The mobile phone communication tool mobile as the modern times, while offering convenience to the mankind, also inevitably by
In its transmitting concentration and strong electromagnetic wave causes to damage to human body, how to prevent and shield electromagnetic wave to cause people universal
Ground concern.
Bonded permanent magnet refers to that the magnetic powder by certain permanent magnetism performance is mixed with a certain proportion of binder, by certain molding work
A kind of magnet made of skill.If applying alignment magnetic field in forming process, make the direction of easy axis of magnetic powder in magnet all along same
One direction, otherwise it to be exactly isotropic magnet that here it is anisotropic bonded magnets.The manufacturing process of bonded permanent magnet is a variety of more
Sample, including compression molding, injection moulding, extrusion molding and calendering formation etc..
Bonded permanent magnet is big by its freedom shape, and dimensional accuracy is high, without advantages such as secondary operation, it has also become modern high
The indispensable Important Components of New Product.
Summary of the invention
The present invention proposes a kind of compound bonded permanent magnet, can improve the excessive problem of the viscosity encountered in preparation process.
The technical scheme of the present invention is realized as follows: a kind of compound bonded permanent magnet, including rare-earth bond magnet layer
With neodymium iron boron binding magnet layer, two layers of compoiste adhering is formed, and the rare-earth bond magnet is that rare earth permanent magnet powder and binder are pressed
It being bonded according to the ratio of mass fraction 9:1, the rare earth permanent magnet powder is made of rare earth element Sm, F e, M, Si and N element,
Middle M is at least one of Be, Cr, Al, Mo；Sm constituent content is interior in 5-8at% range-in the rare earth permanent magnet powder, and Si is in 3-
Within the scope of 5at%, M is in range 2-5at%, and for N within the scope of 6-8at%, surplus is iron；
The neodymium iron boron binding magnet includes the following component by mass fraction: NdFeB magnetic powder 80-90%, yttrium iron alloy
1-2%, aluminium oxide 2%-3%, manganese oxide 3%-6%, zinc oxide 1%-3%, thermosetting adhesive 5-12%.
Preferably, the yttrium iron alloy, aluminium oxide, manganese oxide, zinc oxide are nutty structure, and the largest particles is straight
Diameter is greater than 3mm, and degree of purity is not less than 92%.
Preferably, the rare earth permanent magnet powder at least 85vol% is TbCu7 phase.
Preferably, the average thickness for stating rare earth permanent magnet powder is 15-50 μm；By the nanometer of average-size 20-70nm
Brilliant and amorphous structure is constituted.
Compared with the prior art, the advantages of the present invention are as follows: working condition requirement is low, and cost of material is also compared with conventional magnet
Relative moderate to can help to flexible and efficient development magnet generation preparation work, and helps to reduce being produced into for magnet
This, at the same time, separately effectively raises magnet density and structural strength, magnet internal grain stability is good, reduces magnet
Eddy-current loss, magnetic hystersis loss and magnetocrystalline anisotropy constant, also effectively to the magnetic mechanical performance of magnet, conductance temperature and frequency
Improvement is optimized in rate characteristic, so as to effectively raise magnet total quality stability in use.Pass through in the present invention
The addition of Si element, increases amorphous formation ability, and strap can be made to be formed under lower belt speed, improves into band efficiency,
Tape thickness is stabilized into, microstructure and even grain size are made, is conducive to the magnetic property for improving magnetic powder.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment: a kind of compound bonded permanent magnet, including rare-earth bond magnet layer and neodymium iron boron binding magnet layer, two layers
Compoiste adhering forms, and the rare-earth bond magnet is that rare earth permanent magnet powder and binder are bonded according to the ratio of mass fraction 9:1
It forms, the rare earth permanent magnet powder is made of rare earth element Sm, Fe, M, Si and N element, and wherein M is at least one in Be, Cr, Al, Mo
Kind；Sm constituent content is interior in 5-8at% range-in the rare earth permanent magnet powder, and Si is within the scope of 3-5at%, and M is in range 2-5at%
Interior, for N within the scope of 6-8at%, surplus is iron；
The neodymium iron boron binding magnet includes the following component by mass fraction: NdFeB magnetic powder 80-90%, yttrium iron alloy
1-2%, aluminium oxide 2%-3%, manganese oxide 3%-6%, zinc oxide 1%-3%, thermosetting adhesive 5-12%.
Preferably, the yttrium iron alloy, aluminium oxide, manganese oxide, zinc oxide are nutty structure, and the largest particles is straight
Diameter is greater than 3mm, and degree of purity is not less than 92%.
Preferably, the rare earth permanent magnet powder at least 85vol% is TbCu7 phase.
Preferably, the average thickness for stating rare earth permanent magnet powder is 15-50 μm；By the nanometer of average-size 20-70nm
Brilliant and amorphous structure is constituted.
Embodiment 1: a kind of compound bonded permanent magnet, including rare-earth bond magnet layer and neodymium iron boron binding magnet layer, two
Layer compoiste adhering forms, and the rare-earth bond magnet is that rare earth permanent magnet powder and binder are viscous according to the ratio of mass fraction 9:1
It ties, the rare earth permanent magnet powder is made of rare earth element Sm, Fe, M, Si and N element, and wherein M is Al, Mo；The rare earth permanent magnet
Sm constituent content is 5at%, Si 3at%, M 2at%, N 6at%, Fe 84at% in powder；The neodymium iron boron binding magnetic
Body includes the following component by mass fraction: NdFeB magnetic powder 80%, yttrium iron alloy 2%, aluminium oxide 3%, manganese oxide 6%, oxygen
Change zinc 2%, thermosetting adhesive 7%.The yttrium iron alloy, aluminium oxide, manganese oxide, zinc oxide are nutty structure, and most
Bulky grain diameter is greater than 3mm, and degree of purity is lower than 95%.The average thickness for stating rare earth permanent magnet powder is 15-30 μm；By
The nanocrystalline and amorphous structure of average-size 20-40nm is constituted.
Embodiment 2: a kind of compound bonded permanent magnet, including rare-earth bond magnet layer and neodymium iron boron binding magnet layer, two
Layer compoiste adhering forms, and the rare-earth bond magnet is that rare earth permanent magnet powder and binder are viscous according to the ratio of mass fraction 9:1
It ties, the rare earth permanent magnet powder is made of rare earth element Sm, Fe, M, Si and N element, and wherein M is Be, Cr；The rare earth permanent magnet
Sm constituent content is for 8at%, Si 5at%, M 5at%, N 8at%, Fe 74at% in powder；The neodymium iron boron binding
Magnet includes the following component by mass fraction: NdFeB magnetic powder 88%, yttrium iron alloy 1%, aluminium oxide 2%, manganese oxide 3%,
Zinc oxide 1%, thermosetting adhesive 5%.The yttrium iron alloy, aluminium oxide, manganese oxide, zinc oxide are nutty structure, and
The largest particles diameter is 5mm, and degree of purity is not less than 92%.The rare earth permanent magnet powder at least 88vol% is TbCu7 phase.Institute
The average thickness for stating rare earth permanent magnet powder is 30-50 μm；It is made of the nanocrystalline and amorphous structure of average-size 50-70nm.
Working condition of the invention requires low, and cost of material is also compared with conventional magnet relative moderate, to can help to spirit
Efficient development magnet generation preparation work living, and help to reduce the production cost of magnet, it is at the same time, separately effective to improve
Magnet density and structural strength, magnet internal grain stability is good, reduce eddy-current loss, magnetic hystersis loss and the magnetocrystalline of magnet
Also improvement effectively is optimized to the magnetic mechanical performance of magnet, conductance temperature and frequency characteristic in anisotropy constant, thus
Magnet total quality stability in use can be effectively raised.The addition for passing through Si element in the present invention, increases amorphous
At ability, strap can be made to be formed under lower belt speed, improve into band efficiency, stabilize into tape thickness, make microstructure
And even grain size, be conducive to the magnetic property for improving magnetic powder.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of compound bonded permanent magnet, including rare-earth bond magnet layer and neodymium iron boron binding magnet layer, two layers of compoiste adhering
It forms, it is characterised in that: the rare-earth bond magnet is that rare earth permanent magnet powder and binder are viscous according to the ratio of mass fraction 9:1
Tie, the rare earth permanent magnet powder is made of rare earth element Sm, Fe, M, Si and N element, wherein M be Be, Cr, Al, Mo at least
It is a kind of；Sm constituent content is interior in 5-8at% range-in the rare earth permanent magnet powder, and Si is within the scope of 3-5at%, and M is in range 2-
In 5at%, for N within the scope of 6-8at%, surplus is iron；
The neodymium iron boron binding magnet includes the following component by mass fraction: NdFeB magnetic powder 80-90%, yttrium iron alloy 1-
2%, aluminium oxide 2%-3%, manganese oxide 3%-6%, zinc oxide 1%-3%, thermosetting adhesive 5-12%.
2. compound bonded permanent magnet according to claim 1, it is characterised in that: the yttrium iron alloy, aluminium oxide, oxidation
Manganese, zinc oxide are nutty structure, and the largest particles diameter is greater than 3mm, and degree of purity is not less than 92%.
3. compound bonded permanent magnet according to claim 1, it is characterised in that: the rare earth permanent magnet powder at least 85vol%
For TbCu7 phase.
4. compound bonded permanent magnet according to claim 1, it is characterised in that: the average thickness for stating rare earth permanent magnet powder
It is 15-50 μm；It is made of the nanocrystalline and amorphous structure of average-size 20-70nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403060.1A CN108987011A (en) | 2017-06-01 | 2017-06-01 | Compound bonded permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403060.1A CN108987011A (en) | 2017-06-01 | 2017-06-01 | Compound bonded permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108987011A true CN108987011A (en) | 2018-12-11 |
Family
ID=64501478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710403060.1A Pending CN108987011A (en) | 2017-06-01 | 2017-06-01 | Compound bonded permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108987011A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145418A (en) * | 2007-08-22 | 2008-03-19 | 上海爱普生磁性器件有限公司 | Method for preparing powder for quasi-compression bonding rare earth permanent magnet |
| CN101552078A (en) * | 2009-01-04 | 2009-10-07 | 康双双 | Composite magnet |
| CN102208234A (en) * | 2010-03-29 | 2011-10-05 | 有研稀土新材料股份有限公司 | Rare earth permanent magnetic powder and bonded magnet |
| CN102456459A (en) * | 2010-10-20 | 2012-05-16 | 北京中科三环高技术股份有限公司 | Flexible magnet without magnetic powder falling and preparation method thereof |
| CN102610353A (en) * | 2011-01-24 | 2012-07-25 | 北京中科三环高技术股份有限公司 | Preparation method of anisotropic flexible magnet with high degree of orientation and high performance |
| CN103545076A (en) * | 2013-10-30 | 2014-01-29 | 华南理工大学 | Method for preparing neodymium-iron-boron-ferrite laminated composite bonded magnet by in-situ polymerization bonding agents |
| CN104945754A (en) * | 2015-07-20 | 2015-09-30 | 广州新莱福磁电有限公司 | Manufacturing method for improving attraction of rubber extrusion magnetic strip |
-
2017
- 2017-06-01 CN CN201710403060.1A patent/CN108987011A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145418A (en) * | 2007-08-22 | 2008-03-19 | 上海爱普生磁性器件有限公司 | Method for preparing powder for quasi-compression bonding rare earth permanent magnet |
| CN101552078A (en) * | 2009-01-04 | 2009-10-07 | 康双双 | Composite magnet |
| CN102208234A (en) * | 2010-03-29 | 2011-10-05 | 有研稀土新材料股份有限公司 | Rare earth permanent magnetic powder and bonded magnet |
| CN102456459A (en) * | 2010-10-20 | 2012-05-16 | 北京中科三环高技术股份有限公司 | Flexible magnet without magnetic powder falling and preparation method thereof |
| CN102610353A (en) * | 2011-01-24 | 2012-07-25 | 北京中科三环高技术股份有限公司 | Preparation method of anisotropic flexible magnet with high degree of orientation and high performance |
| CN103545076A (en) * | 2013-10-30 | 2014-01-29 | 华南理工大学 | Method for preparing neodymium-iron-boron-ferrite laminated composite bonded magnet by in-situ polymerization bonding agents |
| CN104945754A (en) * | 2015-07-20 | 2015-09-30 | 广州新莱福磁电有限公司 | Manufacturing method for improving attraction of rubber extrusion magnetic strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1142560C (en) | Multielement gap type permanent-magnet material and production process of magnetic powler and magnet | |
| CN104319050B (en) | Biphase nanocrystalline high-frequency soft magnetic material and preparation method thereof | |
| CN102568809B (en) | Method for preparing corrosion-resistant high-performance sintered neodymium iron boron magnets | |
| CN108364736A (en) | A kind of Nd-Fe-B permanent magnet material and preparation method thereof | |
| KR102322977B1 (en) | Magnetic core and method for manufacturing same | |
| TW200933660A (en) | Composite soft magnetic material and permanent magnetically biasing magnetic core | |
| JP2016538720A (en) | Temperature-stable soft magnetic powder | |
| CN101226801A (en) | Preparation method of iron-based alloy anti-electromagnetic interference material | |
| CN107316727A (en) | A kind of sintered NdFeB preparation method | |
| CN104538167A (en) | Method for preparing magnetically soft alloy and ferrite laminated composite electromagnetic shielding magnet | |
| CN104332267B (en) | Easy-surface type R2Fe14B compound/α-Fe dual-phase nanocrystalline high-frequency soft magnetic material and preparation method thereof | |
| CN101615475A (en) | A kind of manufacturing method of flexible anisotropic bonded rare earth permanent magnet | |
| CN106424705B (en) | A kind of metal powder and its preparation and application | |
| CN1431666A (en) | Agglutination type composite permanent magnetic material of neodymium, iron, boron and iron base soft magnetic powder and its preparing method | |
| CN102358806A (en) | Radar wave absorption absorbing coating and preparation method thereof | |
| CN103273068A (en) | Iron-based amorphous powder and method for preparing coil-embedded integral-forming inductor | |
| CN108987011A (en) | Compound bonded permanent magnet | |
| KR101882444B1 (en) | SOFT MAGNETIC CORE FOR alternating current MOTOR, METHOD FOR MAKING THE SAME AND alternating current MOTOR WITH IT | |
| CN107818853A (en) | One kind nitridation magnetic powder and preparation method thereof | |
| CN103280311A (en) | Method for preparing anisotropic bonded permanent magnet | |
| CN107240469A (en) | One kind improves the coercitive preparation method of ndfeb magnet | |
| CN105255243A (en) | Radar wave absorbing coating and preparation method thereof | |
| CN105161243A (en) | A composite bonded rare earth permanent magnet material | |
| CN105070448A (en) | High-performance cerium-containing cast sheet magnet and preparation method thereof | |
| CN105751731B (en) | A kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181211 |