CN1142561C - 耐腐蚀性永磁体及其制造方法 - Google Patents
耐腐蚀性永磁体及其制造方法 Download PDFInfo
- Publication number
- CN1142561C CN1142561C CNB998007471A CN99800747A CN1142561C CN 1142561 C CN1142561 C CN 1142561C CN B998007471 A CNB998007471 A CN B998007471A CN 99800747 A CN99800747 A CN 99800747A CN 1142561 C CN1142561 C CN 1142561C
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- magnet
- film
- corrosion
- coating film
- 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.)
- Expired - Lifetime
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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
- 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
- H01F41/026—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 protecting methods against environmental influences, e.g. oxygen, by surface treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12049—Nonmetal component
- Y10T428/12056—Entirely inorganic
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
| 耐腐蚀试验之前的磁性能 | |||||||
| 时效处理后 | 表面处理后 | ||||||
| Br(kG) | iHc(kOe) | (BH)max(MGOe) | Br(kG) | iHc(kOe) | (BH)max(MGOe) | ||
| 实施例1 | ① | 11.5 | 16.8 | 30.7 | 11.4 | 16.7 | 30.6 |
| ② | 11.4 | 16.8 | 30.6 | 11.4 | 16.6 | 30.6 | |
| 实施例2 | ① | 11.5 | 16.8 | 30.6 | 11.4 | 16.6 | 30.5 |
| ② | 11.5 | 16.8 | 30.7 | 11.4 | 16.7 | 30.6 | |
| 实施例3 | 11.5 | 16.8 | 30.7 | 11.4 | 16.6 | 30.6 | |
| 对比例1 | 11.5 | 16.8 | 30.7 | 11.3 | 16.6 | 30.5 | |
| 对比例2 | 11.5 | 16.8 | 30.7 | 11.4 | 16.6 | 30.5 | |
| 实施例 | 表面抛光 | 磁体表面粗糙度(μm) | 电弧离子镀条件 | 涂敷膜厚(μm) | |||
| 气压(Pa) | 偏置电压(V) | 时间(min) | |||||
| 1 | ① | 研磨至镜面光洁度 | 0.06 | 0.2 | -50 | 10 | 0.2 |
| ② | 研磨 | 0.5 | 0.2 | -50 | 100 | 2.0 | |
| 2 | ① | 研磨至镜面光洁度 | 0.06 | 0.2 | -60 | 13 | 0.2 |
| ② | 研磨 | 0.5 | 0.2 | -60 | 130 | 2.0 | |
| 耐腐蚀试验之前的磁性能 | 耐腐蚀试验之后的表面状态(破坏状态) | |||||||
| 耐腐蚀试验之后(1000Hrs) | 磁性能退化百分率(%) | |||||||
| Br(kG) | iHc(kOe) | BH)max(MGOe) | Br(kG) | iHc(kOe) | (BH)max(MGOe) | |||
| 实施例1 | ① | 11.4 | 16.5 | 30.0 | <1 | 1.8 | 2.3 | 无变化 |
| ② | 11.3 | 16.4 | 29.9 | <1 | 2.4 | 2.3 | ||
| 实施例2 | ① | 11.4 | 16.4 | 29.8 | <1 | 2.4 | 2.6 | 无变化 |
| ② | 11.4 | 16.4 | 29.8 | <1 | 2.4 | 2.9 | ||
| 实施例3 | 11.4 | 16.3 | 29.8 | <1 | 3.0 | 2.9 | 无变化 | |
| 对比例1 | 10.5 | 15.6 | 27.5 | 8.7 | 7.2 | 10.4 | 涂层剥落 | |
| 对比例2 | 10.4 | 15.3 | 27.3 | 9.6 | 8.9 | 11.1 | 局部生锈 | |
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP123956/1998 | 1998-04-16 | ||
| JP10123956A JPH11307328A (ja) | 1998-04-16 | 1998-04-16 | 耐食性永久磁石およびその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1272212A CN1272212A (zh) | 2000-11-01 |
| CN1142561C true CN1142561C (zh) | 2004-03-17 |
Family
ID=14873516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998007471A Expired - Lifetime CN1142561C (zh) | 1998-04-16 | 1999-04-13 | 耐腐蚀性永磁体及其制造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6275130B1 (zh) |
| EP (1) | EP0991085B1 (zh) |
| JP (1) | JPH11307328A (zh) |
| KR (1) | KR100354371B1 (zh) |
| CN (1) | CN1142561C (zh) |
| DE (1) | DE69909569T2 (zh) |
| WO (1) | WO1999054890A1 (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534611A (zh) * | 2010-12-27 | 2012-07-04 | 鸿富锦精密工业(深圳)有限公司 | 壳体及其制造方法 |
| CN102691062A (zh) * | 2011-03-23 | 2012-09-26 | 鸿富锦精密工业(深圳)有限公司 | 壳体及其制造方法 |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY128597A (en) * | 2000-07-10 | 2007-02-28 | Neomax Co Ltd | Method of inhibiting production of projections in metal deposited-film |
| DE10134267B4 (de) * | 2001-07-18 | 2007-03-01 | Gkss-Forschungszentrum Geesthacht Gmbh | Einrichtung zur Reflexion von Röntgenstrahlen |
| JP4089808B2 (ja) * | 2001-12-25 | 2008-05-28 | ケミテック株式会社 | 上消し可能なマイクロカプセル磁気泳動表示シート |
| WO2004046409A2 (en) * | 2002-11-18 | 2004-06-03 | Iowa State University Research Foundation, Inc. | Permanent magnet alloy with improved high temperature performance |
| CN101036202B (zh) | 2004-11-17 | 2010-09-01 | Tdk株式会社 | 稀土类烧结磁铁 |
| WO2007077809A1 (ja) * | 2005-12-28 | 2007-07-12 | Hitachi Metals, Ltd. | 希土類磁石およびその製造方法 |
| JP4835407B2 (ja) * | 2006-11-28 | 2011-12-14 | Tdk株式会社 | 希土類磁石及びその製造方法 |
| CN101469428B (zh) * | 2007-12-24 | 2012-05-30 | 北京中科三环高技术股份有限公司 | 一种具有耐腐蚀膜的稀土永磁体的制造方法 |
| CN101859639B (zh) * | 2010-07-06 | 2013-03-27 | 烟台正海磁性材料股份有限公司 | 一种梯度电阻R-Fe-B系磁体及其生产方法 |
| CN103993302B (zh) * | 2014-05-27 | 2016-07-13 | 安徽大地熊新材料股份有限公司 | 一种高耐腐蚀性的烧结钕铁硼永磁材料的制备方法 |
| CN104480475A (zh) | 2014-11-04 | 2015-04-01 | 烟台首钢磁性材料股份有限公司 | 钕铁硼磁体表面硬质铝膜层的制备方法 |
| CN104651783B (zh) | 2015-02-12 | 2017-09-01 | 烟台首钢磁性材料股份有限公司 | 一种永磁钕铁硼磁钢表面镀铝的方法 |
| KR101885666B1 (ko) | 2016-09-01 | 2018-08-06 | (주) 멀티패스 | Rf 신호를 이용한 비접촉 방식의 전도도 및 비전도체 유전율 특성변화 측정장치 |
| CN107419231B (zh) * | 2017-07-26 | 2019-11-15 | 沈阳广泰真空科技有限公司 | 钕铁硼永磁防腐绝缘镀层的制备方法及具有该镀层的钕铁硼永磁体 |
| RU2693887C1 (ru) * | 2018-12-19 | 2019-07-05 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Способ изготовления коррозионностойких постоянных магнитов |
| CN111292951B (zh) * | 2020-02-28 | 2022-03-22 | 安徽大地熊新材料股份有限公司 | 一种提高烧结钕铁硼磁体矫顽力的方法 |
| CN112176286B (zh) * | 2020-09-30 | 2022-07-15 | 福建省长汀金龙稀土有限公司 | 一种覆层、具有该覆层的金属磁体及该覆层的制备方法 |
| WO2023083502A1 (fr) * | 2021-11-09 | 2023-05-19 | The Swatch Group Research And Development Ltd | Dispositif de fixation magnétique de deux éléments d'une boite de montre l'un avec l'autre et boite de montre comprenant ledit dispositif de fixation |
| CN114464386A (zh) * | 2021-12-13 | 2022-05-10 | 杭州磁聚力科技有限公司 | 一种用于钐钴永磁材料表面防护的镀层及钐钴永磁材料表面的防护方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799796A (en) * | 1970-10-06 | 1974-03-26 | Matthey Bishop Inc | Preparation of structures with a coating of al2o3/sio2 fibers bonded to al2o3 for use as catalyst substrates |
| JPS59130406A (ja) * | 1983-01-17 | 1984-07-27 | Nippon Telegr & Teleph Corp <Ntt> | 粉末永久磁石の製造方法 |
| US4985313A (en) * | 1985-01-14 | 1991-01-15 | Raychem Limited | Wire and cable |
| JPS61150201A (ja) * | 1984-12-24 | 1986-07-08 | Sumitomo Special Metals Co Ltd | 耐食性のすぐれた永久磁石 |
| JPS61270308A (ja) * | 1985-05-23 | 1986-11-29 | Sumitomo Special Metals Co Ltd | 永久磁石材料の製造方法 |
| CN1007847B (zh) * | 1984-12-24 | 1990-05-02 | 住友特殊金属株式会社 | 制造具有改进耐蚀性磁铁的方法 |
| KR910020753A (ko) * | 1990-05-31 | 1991-12-20 | 서주인 | 희토류 영구 자석의 제조방법 |
| JPH0653020A (ja) * | 1992-07-30 | 1994-02-25 | Tdk Corp | 酸化物永久磁石 |
| JP3305786B2 (ja) * | 1992-12-26 | 2002-07-24 | 住友特殊金属株式会社 | 耐食性のすぐれた永久磁石の製造方法 |
| JP3737830B2 (ja) * | 1993-06-11 | 2006-01-25 | 株式会社Neomax | 耐食性永久磁石およびその製造方法 |
| JP3630340B2 (ja) * | 1995-08-23 | 2005-03-16 | 株式会社Neomax | R−Fe−B系焼結型永久磁石の製造方法 |
| JPH1074607A (ja) * | 1996-08-30 | 1998-03-17 | Sumitomo Special Metals Co Ltd | 耐食性永久磁石及びその製造方法 |
-
1998
- 1998-04-16 JP JP10123956A patent/JPH11307328A/ja active Pending
-
1999
- 1999-04-13 DE DE69909569T patent/DE69909569T2/de not_active Expired - Lifetime
- 1999-04-13 CN CNB998007471A patent/CN1142561C/zh not_active Expired - Lifetime
- 1999-04-13 EP EP99913637A patent/EP0991085B1/en not_active Expired - Lifetime
- 1999-04-13 KR KR1019997011826A patent/KR100354371B1/ko not_active Expired - Lifetime
- 1999-04-13 US US09/445,810 patent/US6275130B1/en not_active Expired - Lifetime
- 1999-04-13 WO PCT/JP1999/001945 patent/WO1999054890A1/ja not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534611A (zh) * | 2010-12-27 | 2012-07-04 | 鸿富锦精密工业(深圳)有限公司 | 壳体及其制造方法 |
| CN102691062A (zh) * | 2011-03-23 | 2012-09-26 | 鸿富锦精密工业(深圳)有限公司 | 壳体及其制造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0991085B1 (en) | 2003-07-16 |
| DE69909569T2 (de) | 2004-02-12 |
| US6275130B1 (en) | 2001-08-14 |
| KR100354371B1 (ko) | 2002-09-28 |
| WO1999054890A1 (fr) | 1999-10-28 |
| DE69909569D1 (de) | 2003-08-21 |
| EP0991085A1 (en) | 2000-04-05 |
| EP0991085A4 (en) | 2000-07-12 |
| JPH11307328A (ja) | 1999-11-05 |
| CN1272212A (zh) | 2000-11-01 |
| KR20010013808A (ko) | 2001-02-26 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HITACHI METALS, LTD. Free format text: FORMER OWNER: SUMITOMO SPEC METALS Effective date: 20130529 |
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Owner name: SUMITOMO SPEC METALS Free format text: FORMER NAME: SUMITOMO SPECIAL METALS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Osaka Patentee after: Neomax Co.,Ltd. Address before: Osaka Patentee before: Sumitomo Special Metals Co.,Ltd. |
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Effective date of registration: 20130529 Address after: Tokyo, Japan Patentee after: HITACHI METALS, Ltd. Address before: Osaka Patentee before: Neomax Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20001101 Assignee: BEIJING JINGCI MAGNET Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000374 Denomination of invention: Corrosion-resisting permanent magnet and method for producing same Granted publication date: 20040317 License type: Common License Record date: 20130703 Application publication date: 20001101 Assignee: ADVANCED TECHNOLOGY & MATERIALS Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000365 Denomination of invention: Corrosion-resisting permanent magnet and method for producing same Granted publication date: 20040317 License type: Common License Record date: 20130701 Application publication date: 20001101 Assignee: BEIJING ZHONG KE SAN HUAN HI-TECH Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000364 Denomination of invention: Corrosion-resisting permanent magnet and method for producing same Granted publication date: 20040317 License type: Common License Record date: 20130701 |
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Application publication date: 20001101 Assignee: NINGBO YUNSHENG Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2014990000031 Denomination of invention: Corrosion-resisting permanent magnet and method for producing same Granted publication date: 20040317 License type: Common License Record date: 20140114 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Address after: Japan Tokyo port harbor 2 chome No. 70 Patentee after: HITACHI METALS, Ltd. Address before: Tokyo, Japan Patentee before: HITACHI METALS, Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20001101 Assignee: Hitachi metal ring Ci material (Nantong) Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2017990000034 Denomination of invention: Corrosion-resisting permanent magnet and method for producing same Granted publication date: 20040317 License type: Common License Record date: 20170209 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CI03 | Correction of invention patent | ||
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Correction item: A transferee of the entry into force of the contract Correct: Hitachi metal ring magnets (Nantong) Co. Ltd. False: Hitachi metal ring Ci material (Nantong) Co. Ltd. Number: 11 Volume: 33 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20040317 |