CN111613402A - 一种利用钕铁硼废旧磁钢再制造高性能永磁体的工艺 - Google Patents
一种利用钕铁硼废旧磁钢再制造高性能永磁体的工艺 Download PDFInfo
- Publication number
- CN111613402A CN111613402A CN202010421916.XA CN202010421916A CN111613402A CN 111613402 A CN111613402 A CN 111613402A CN 202010421916 A CN202010421916 A CN 202010421916A CN 111613402 A CN111613402 A CN 111613402A
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- CN
- China
- Prior art keywords
- magnetic field
- iron boron
- neodymium iron
- permanent magnet
- treatment
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- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 56
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 51
- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 230000008569 process Effects 0.000 title claims abstract description 47
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 239000001257 hydrogen Substances 0.000 claims abstract description 41
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 41
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000009768 microwave sintering Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000004544 sputter deposition Methods 0.000 claims abstract description 10
- 238000010902 jet-milling Methods 0.000 claims abstract description 5
- 238000001755 magnetron sputter deposition Methods 0.000 claims abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052786 argon Inorganic materials 0.000 claims description 30
- 238000004321 preservation Methods 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 14
- 230000005347 demagnetization Effects 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 238000005477 sputtering target Methods 0.000 claims description 5
- 239000013077 target material Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- LGQXXHMEBUOXRP-UHFFFAOYSA-N tributyl borate Chemical compound CCCCOB(OCCCC)OCCCC LGQXXHMEBUOXRP-UHFFFAOYSA-N 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 238000005202 decontamination Methods 0.000 claims description 2
- 230000003588 decontaminative effect Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 21
- 229910052761 rare earth metal Inorganic materials 0.000 description 10
- 150000002910 rare earth metals Chemical class 0.000 description 9
- 238000004064 recycling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005324 grain boundary diffusion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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Images
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
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
-
- 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
-
- 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
Abstract
Description
Claims (7)
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CN202010421916.XA CN111613402B (zh) | 2020-05-18 | 2020-05-18 | 一种利用钕铁硼废旧磁钢再制造高性能永磁体的工艺 |
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CN202010421916.XA CN111613402B (zh) | 2020-05-18 | 2020-05-18 | 一种利用钕铁硼废旧磁钢再制造高性能永磁体的工艺 |
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CN111613402A true CN111613402A (zh) | 2020-09-01 |
CN111613402B CN111613402B (zh) | 2021-07-20 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113724956A (zh) * | 2021-08-27 | 2021-11-30 | 安徽吉华新材料有限公司 | 一种双主相稀土永磁材料及其制备方法 |
CN114864264A (zh) * | 2022-05-16 | 2022-08-05 | 安徽吉华新材料有限公司 | 一种低重稀土高矫顽力稀土钕铁硼永磁体的制备工艺 |
CN114864268A (zh) * | 2022-06-07 | 2022-08-05 | 安徽吉华新材料有限公司 | 一种高矫顽力再生磁体的制备方法 |
CN114999805A (zh) * | 2022-06-13 | 2022-09-02 | 安徽吉华新材料有限公司 | 一种高性能再生永磁材料的制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103050268A (zh) * | 2012-12-31 | 2013-04-17 | 厦门钨业股份有限公司 | 基于细粉蒸着热处理的烧结Nd-Fe-B系磁铁制作方法 |
JP2013225533A (ja) * | 2012-03-19 | 2013-10-31 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法 |
US20130299050A1 (en) * | 2011-01-19 | 2013-11-14 | Hitachi Metals, Ltd. | Method of producing r-t-b sintered magnet |
CN106384637A (zh) * | 2016-10-28 | 2017-02-08 | 北京科技大学 | 一种改善边界结构制备高性能钕铁硼磁体的方法 |
CN109898063A (zh) * | 2019-03-12 | 2019-06-18 | 江西理工大学 | 一种提升烧结钕铁硼磁体磁性能的方法 |
-
2020
- 2020-05-18 CN CN202010421916.XA patent/CN111613402B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130299050A1 (en) * | 2011-01-19 | 2013-11-14 | Hitachi Metals, Ltd. | Method of producing r-t-b sintered magnet |
JP2013225533A (ja) * | 2012-03-19 | 2013-10-31 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法 |
CN103050268A (zh) * | 2012-12-31 | 2013-04-17 | 厦门钨业股份有限公司 | 基于细粉蒸着热处理的烧结Nd-Fe-B系磁铁制作方法 |
CN106384637A (zh) * | 2016-10-28 | 2017-02-08 | 北京科技大学 | 一种改善边界结构制备高性能钕铁硼磁体的方法 |
CN109898063A (zh) * | 2019-03-12 | 2019-06-18 | 江西理工大学 | 一种提升烧结钕铁硼磁体磁性能的方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113724956A (zh) * | 2021-08-27 | 2021-11-30 | 安徽吉华新材料有限公司 | 一种双主相稀土永磁材料及其制备方法 |
CN113724956B (zh) * | 2021-08-27 | 2023-11-24 | 安徽吉华新材料有限公司 | 一种双主相稀土永磁材料及其制备方法 |
CN114864264A (zh) * | 2022-05-16 | 2022-08-05 | 安徽吉华新材料有限公司 | 一种低重稀土高矫顽力稀土钕铁硼永磁体的制备工艺 |
CN114864264B (zh) * | 2022-05-16 | 2023-06-30 | 安徽吉华新材料有限公司 | 一种低重稀土高矫顽力稀土钕铁硼永磁体的制备工艺 |
CN114864268A (zh) * | 2022-06-07 | 2022-08-05 | 安徽吉华新材料有限公司 | 一种高矫顽力再生磁体的制备方法 |
CN114999805A (zh) * | 2022-06-13 | 2022-09-02 | 安徽吉华新材料有限公司 | 一种高性能再生永磁材料的制备方法 |
CN114999805B (zh) * | 2022-06-13 | 2023-12-26 | 安徽吉华新材料有限公司 | 一种高性能再生永磁材料的制备方法 |
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CN111613402B (zh) | 2021-07-20 |
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Denomination of invention: A process for remanufacturing high performance permanent magnets from waste NdFeB magnetic steel Effective date of registration: 20230116 Granted publication date: 20210720 Pledgee: Qianshan Wanyuan Financing Guarantee Co.,Ltd. Pledgor: Anhui Jihua New Material Co.,Ltd. Registration number: Y2023980030897 |
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Date of cancellation: 20231228 Granted publication date: 20210720 Pledgee: Qianshan Wanyuan Financing Guarantee Co.,Ltd. Pledgor: Anhui Jihua New Material Co.,Ltd. Registration number: Y2023980030897 |