CN105931788B - A kind of composite permanet magnet iron and preparation method thereof - Google Patents
A kind of composite permanet magnet iron and preparation method thereof Download PDFInfo
- Publication number
- CN105931788B CN105931788B CN201610288856.2A CN201610288856A CN105931788B CN 105931788 B CN105931788 B CN 105931788B CN 201610288856 A CN201610288856 A CN 201610288856A CN 105931788 B CN105931788 B CN 105931788B
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- CN
- China
- Prior art keywords
- micro mist
- major ingredient
- auxiliary material
- green compact
- permanet magnet
- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000004615 ingredient Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 239000003595 mist Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000000462 isostatic pressing Methods 0.000 claims description 3
- 238000010902 jet-milling Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims 1
- 238000000280 densification Methods 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 7
- 150000002910 rare earth metals Chemical class 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 abstract 1
- 238000005253 cladding Methods 0.000 abstract 1
- -1 is milled Substances 0.000 abstract 1
- 229910052702 rhenium Inorganic materials 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 1
Classifications
-
- 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
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
-
- B22F1/0003—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of composite permanet magnet iron and preparation method thereof, and using Re, Fe, B and other auxiliary elements such as Bi, Al etc. are made.Mainly including ingredient, is milled, metal cladding mixes green compact, be sintered and etc..The present invention realizes the magnetic property design of product by certain making step by addition auxiliary powder, and the use of rare-earth metal material, the enhancing of composite material machinability are reduced compared with general sintered neodymium iron boron material.
Description
Technical field
The present invention relates to composite permanet magnet iron field, specifically a kind of complex sintered NdFeB material permanent magnet and its system
Make method.
Background technique
Sintering rare-earth based material is a kind of one of widely applied superpower permanet magnetic material, needs to use about in manufacturing process
33% or so rare-earth metal material needs to adjust formula and technique according to the difference used to permanent-magnet material parameter to realize
Using the requirement to permanent-magnet material remanent magnetism, traditional handicraft needs to realize using rare earth element to the adjustment of remanent magnetism.The present invention exists
The adjustment for realizing the remanent magnetism to composite material of the present invention in the coercitive situation of product using non-rare earth is not reduced, is reduced
The rare earth usage amount of material entirety, has saved rare earths material.
Summary of the invention
To solve the problems, such as that background technique is mentioned, the following technical solutions are proposed by the present invention:
A kind of composite permanet magnet iron, is made, wherein major ingredient of major ingredient and auxiliary material: Re or other thuliums 25-
33%, Fe 65-68%, B 0.8-1.2%, remaining Co, Cu, Al, Nb, Zr, Ti, Wu oligo-element 0-3%；Auxiliary material: Bi, Al,
Cu, wherein Bi is essential elements, and Al and Cu can be used simultaneously or using one kind.
A kind of production method of composite permanet magnet iron includes the following steps: that (1) major ingredient is matched according to formula, through high temperature
Slab is formed after melting, using mechanical lapping or hydrogen it is broken-jet milling process production area average particle diameter is 1.5-5 μm or so of master
Expect micro mist；(2) metal in auxiliary material in addition to Bi is fabricated to 1.5-5 μm or so of micro mist, it is then thick in micro mist overlay coating
Degree is Bi layers of 10-100nm metal, obtains auxiliary material micro mist；(3) according to major ingredient micro mist 80-99.5%, auxiliary material micro mist 0.5-20%'s
Ratio mixing；(4) green compact is carried out to mixed powder under 1T or more magnetic field orientating；(5) right under vacuum or atmosphere protection state
Green compact is sintered, and densifies material base.
Preferably, aeroponics are used in step (2) when production micro mist, using physical vapor vapour deposition method at Bi layer of plating metal.
Preferably, green density further can be improved using isostatic pressing process after green compact.
Preferably, in step (5), the temperature of sintering processes is 450-1100 DEG C.
The present invention is realized the magnetic property design of product, is burnt with general by addition auxiliary powder by certain making step
Knot NdFeB material reduces costs first than reducing the use of rare-earth metal material, the enhancing of composite material machinability.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, the present invention is made below further
Illustrate:
A kind of composite permanet magnet iron, is made, wherein major ingredient of major ingredient and auxiliary material: Re or other thuliums 25-
33%%, Fe 65-67%, B 0.8-1.2%, remaining is Co, Cu, Al, Nb, Zr, Ti, Wu oligo-element 0-3%；Auxiliary material:
Bi, Al, Cu, wherein Bi is essential elements, and Al and Cu can be used simultaneously or using one kind.
A kind of production method of composite permanet magnet iron includes the following steps: that (1) major ingredient is matched according to formula, through high temperature
Slab is formed after melting, using mechanical lapping or hydrogen it is broken-jet milling process production area average particle diameter is 1.5-5 μm or so of master
Expect micro mist；(2) metal in auxiliary material in addition to Bi is fabricated to 1.5-5 μm or so of micro mist, it is then thick in micro mist overlay coating
Degree is Bi layers of 10-100nm metal, obtains auxiliary material micro mist；(3) according to major ingredient micro mist 50-99.5%, auxiliary material micro mist 0.5-50%'s
Ratio mixing；(4) green compact is carried out to mixed powder under 1T or more magnetic field orientating, can further utilizes isostatic pressing process after green compact
Improve green density.(5) green compact is sintered under vacuum or atmosphere protection state, densifies material base, at sintering
The temperature of reason is 450-1100 DEG C.
As a preferred embodiment of the present invention, aeroponics are used in step (2) when production micro mist, at Bi layers of plating metal
Using physical vapor vapour deposition method.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, foregoing description is regarded as illustrative in nature, and should not be construed as wanting right of the present invention
Ask the limitation of protection scope.
Claims (1)
1. a kind of production method of composite permanet magnet iron, it is characterised in that: comprise the following steps that
(1) composite permanet magnet iron is made of major ingredient and auxiliary material, major ingredient proportion: Re element 25-33%, Fe 65-68%, B 0.8-1.2%
, remaining Co, Cu, Al, Nb, Zr, Ti, Wu oligo-element 0-3% forms slab after high melt, utilizes mechanical lapping or hydrogen
The major ingredient micro mist that broken-jet milling process production area average particle diameter is 1.5-5 μm；
(2) ratio of adjuvant: Bi, Al, Cu, wherein Bi is essential elements, and Al and Cu will be removed simultaneously using or using one kind in auxiliary material
Metal other than Bi is fabricated to 1.5-5 μm of micro mist, uses aeroponics when making micro mist, then micro mist overlay coating with a thickness of
Physical vapor vapour deposition method is used at Bi layers of 10-100nm metal, Bi layers of plating metal, obtains auxiliary material micro mist；
(3) according to major ingredient micro mist 80-99.5%, the ratio of auxiliary material micro mist 0.5-20% is mixed；
(4) green compact is carried out to mixed powder under 1T or more magnetic field orientating, further improves pressure using isostatic pressing process after green compact
Base density；
(5) green compact is sintered under vacuum or atmosphere protection state, the temperature of sintering processes is 450-1100 DEG C, is made
Material base densification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288856.2A CN105931788B (en) | 2016-04-29 | 2016-04-29 | A kind of composite permanet magnet iron and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288856.2A CN105931788B (en) | 2016-04-29 | 2016-04-29 | A kind of composite permanet magnet iron and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105931788A CN105931788A (en) | 2016-09-07 |
| CN105931788B true CN105931788B (en) | 2019-06-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610288856.2A Active CN105931788B (en) | 2016-04-29 | 2016-04-29 | A kind of composite permanet magnet iron and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105931788B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133800A (en) * | 2017-12-27 | 2018-06-08 | 宁波招宝磁业有限公司 | A kind of high-strength tenacity neodymium iron boron magnetic body and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62244105A (en) * | 1986-04-16 | 1987-10-24 | Hitachi Metals Ltd | Rare earth magnet |
| CN1395263A (en) * | 2001-06-29 | 2003-02-05 | Tdk株式会社 | Rare earths permanent magnet |
| CN1717756A (en) * | 2003-10-31 | 2006-01-04 | Tdk株式会社 | Manufacturing method of rare earth sintered magnet |
-
2016
- 2016-04-29 CN CN201610288856.2A patent/CN105931788B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62244105A (en) * | 1986-04-16 | 1987-10-24 | Hitachi Metals Ltd | Rare earth magnet |
| CN1395263A (en) * | 2001-06-29 | 2003-02-05 | Tdk株式会社 | Rare earths permanent magnet |
| CN1717756A (en) * | 2003-10-31 | 2006-01-04 | Tdk株式会社 | Manufacturing method of rare earth sintered magnet |
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| CN105931788A (en) | 2016-09-07 |
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