KR850000141A - 원통형 영구자석 제조방법 - Google Patents
원통형 영구자석 제조방법 Download PDFInfo
- Publication number
- KR850000141A KR850000141A KR1019840002728A KR840002728A KR850000141A KR 850000141 A KR850000141 A KR 850000141A KR 1019840002728 A KR1019840002728 A KR 1019840002728A KR 840002728 A KR840002728 A KR 840002728A KR 850000141 A KR850000141 A KR 850000141A
- Authority
- KR
- South Korea
- Prior art keywords
- permanent magnet
- cylindrical
- manufacturing
- magnetic
- cylindrical permanent
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
-
- 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
- H01F41/0273—Imparting anisotropy
- H01F41/028—Radial anisotropy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
-
- 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
- H01F13/003—Methods and devices for magnetising permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방법을 실시하기에 적합한 1예의 성형장치의 수직단면도.
제2도는 제1도의 II-II에서 취한 부분단면도.
Claims (9)
- 원통형 성형중공내에서 이동하는 하부천공기와 작용하는 금속주형을 준비하고 상기 금속주형은 제조될 자석의 자극에 대응하여 자화수단을 내부주위 표면에서 제공하며, 상기 성형중공을 자기적 이방성을 갖는 페로자성 분말로 채우며, 상기 페로자성 분말에 자기적 이방성을 주도록 하기 위해 자화수단을 쓰고 동시에 상기 상부천공기 및 상기 하부천공기 사이의 상기 분말을 성형하며, 소성에 의하여 형성된 성형을 탈자화시키고, 주어진 이방성과 동일한 방향에서의 소성된 성형체를 자화시키는 과정을 포함하는 원통형 영구자석 제조방법에 있어서, 상기 자화수단이 상기 성형중공의 외측 주위 표면에서 측정하여 3.5×103[암페어-턴/미터]보다 작지 않은 펄스 자계를 발생시켜 상기 성형체상에서 다극표면 이방성을 얻은 것을 특징으로 한 원통형 영구자석 제조방법.
- 제1항에 있어서, 상기 성형체가 자극이 8개 이상의 다극 이성을 갖도록 하는 원통형 영구자석 제조방법.
- 제1항에 있어서, 비자성재료로 만들어진 고리모양의 스페이스가 상기 금속주형의 내부표면에 꼭 끼어지도록 하는 원통형 영구자석 제조방법.
- 제3항에 있어서, 상기 고리모양의 스페이서의 두께가 t<π·d/3·M의 조건을 만족하도록 하는 원통형 영구자석 제조방법. 단, d는 상기 스페이서의 내부직경, M은 자극의 갯수임.
- 제1항에 있어서, 상기 성형중공을 상기 페로자성 분말로 채운 후에 상기 금속 주행을 예정된 거리만큼 들어올리고, 상기 상부천공기가 하향으로 움직이는 동안 상기 페로자성 분말과 접촉한 후에 상기 펄스 자계가 인가되는 원통형 영구자석 제조방법.
- 제1항에 있어서, 상기 페로자성분말이 실제적으로 같은 크기의 압축력으로써 상기 상부 및 하부천공기 모두에 의하여 성형되는 원통형 영구자석 제조방법.
- 제1항에 있어서, 상기 성형체가 30[㎜]보다 작지 않은 외경을 갖으며 주로 MO·nFe2O3으로 이루어지는 원통형 영구자석 제조방법(단, M은 Ba, Sr 및 Pb가 1개, 2개 또 그 이상이며 동시에 n은 5 또는 6인 정수이다).
- 제1항에 있어서, 상기 원통형 영구자석이 2개의 또는 그 이상의 항자력 및 1 정도의 역전 가능한 자기적 투과율을 갖는 원통형 영구자석 제조방법.
- 제2항에 있어서 상기 원통형 영구자석이 그 표면 안에서 24개 이상의 자극의 다극 이방성을 갖는 원통형 영구자석 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP88962 | 1983-05-20 | ||
JP58-88962 | 1983-05-20 | ||
JP58088962A JPS59216453A (ja) | 1983-05-20 | 1983-05-20 | 円筒状永久磁石の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR850000141A true KR850000141A (ko) | 1985-02-25 |
KR890002536B1 KR890002536B1 (ko) | 1989-07-13 |
Family
ID=13957451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019840002728A KR890002536B1 (ko) | 1983-05-20 | 1984-05-18 | 원통형 영구자석 제조방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4600555A (ko) |
EP (1) | EP0129052B1 (ko) |
JP (1) | JPS59216453A (ko) |
KR (1) | KR890002536B1 (ko) |
DE (1) | DE3465820D1 (ko) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4684406A (en) * | 1983-05-21 | 1987-08-04 | Sumitomo Special Metals Co., Ltd. | Permanent magnet materials |
JPS601820A (ja) * | 1983-06-17 | 1985-01-08 | Tohoku Metal Ind Ltd | 円筒状永久磁石の製造方法 |
US4678634A (en) * | 1985-04-18 | 1987-07-07 | Shin-Etsu Chemical Co., Ltd. | Method for the preparation of an anisotropic sintered permanent magnet |
JPS61241905A (ja) * | 1985-04-18 | 1986-10-28 | Shin Etsu Chem Co Ltd | 異方性永久磁石の製造方法 |
JPS62224916A (ja) * | 1986-03-27 | 1987-10-02 | Seiko Epson Corp | 希土類磁石の製造方法 |
JPH0343708Y2 (ko) * | 1986-03-29 | 1991-09-12 | ||
JPS62252119A (ja) * | 1986-04-24 | 1987-11-02 | Seiko Epson Corp | ラジアル異方性磁石の製造方法 |
JPH0785458B2 (ja) * | 1986-05-09 | 1995-09-13 | セイコーエプソン株式会社 | 希土類磁石の製造方法 |
GB2196479B (en) * | 1986-10-20 | 1990-03-28 | Philips Electronic Associated | Method and apparatus for the manufacture of rare earth transition metal alloy magnets |
JPH0828293B2 (ja) * | 1987-04-07 | 1996-03-21 | 日立金属株式会社 | 円筒状永久磁石、それを用いたモータ及びその製造方法 |
JPH02139908A (ja) * | 1988-11-18 | 1990-05-29 | Shin Etsu Chem Co Ltd | 極異方性希土類磁石の製造方法 |
JPH02139907A (ja) * | 1988-11-18 | 1990-05-29 | Shin Etsu Chem Co Ltd | 極異方性希土類磁石の製造方法 |
JPH02178011A (ja) * | 1988-12-29 | 1990-07-11 | Seikosha Co Ltd | ドーナツ型永久磁石の製造方法とこの方法によって製造したドーナツ型永久磁石およびドーナツ型永久磁石の成形金型 |
EP0393815B1 (en) * | 1989-04-15 | 1994-05-18 | Fuji Electrochemical Co.Ltd. | Method for packing permanent magnet powder |
JPH0317250U (ko) * | 1989-06-30 | 1991-02-20 | ||
JP2819748B2 (ja) * | 1990-03-23 | 1998-11-05 | 大同特殊鋼株式会社 | 薄肉長尺リング状磁石成形体の成形方法 |
US5464576A (en) * | 1991-04-30 | 1995-11-07 | Matsushita Electric Industrial Co., Ltd. | Method of making isotropic bonded magnet |
JP2756471B2 (ja) * | 1993-03-12 | 1998-05-25 | セイコーインスツルメンツ株式会社 | ラジアル配向磁石の製造方法およびラジアル配向磁石 |
CA2572499A1 (en) | 1997-04-04 | 1998-10-15 | University Of Southern California | Method for electrochemical fabrication including use of multiple structural and/or sacrificial materials |
US6612826B1 (en) * | 1997-10-15 | 2003-09-02 | Iap Research, Inc. | System for consolidating powders |
US6157099A (en) * | 1999-01-15 | 2000-12-05 | Quantum Corporation | Specially oriented material and magnetization of permanent magnets |
US6432158B1 (en) * | 1999-10-25 | 2002-08-13 | Sumitomo Special Metals Co., Ltd. | Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet |
US7259640B2 (en) | 2001-12-03 | 2007-08-21 | Microfabrica | Miniature RF and microwave components and methods for fabricating such components |
US9614266B2 (en) | 2001-12-03 | 2017-04-04 | Microfabrica Inc. | Miniature RF and microwave components and methods for fabricating such components |
CN100528420C (zh) * | 2002-04-12 | 2009-08-19 | 日立金属株式会社 | 稀土类合金粉末的压制成型方法以及稀土类合金烧结体的制造方法 |
TWI298892B (en) * | 2002-08-29 | 2008-07-11 | Shinetsu Chemical Co | Radial anisotropic ring magnet and method of manufacturing the ring magnet |
US10416192B2 (en) | 2003-02-04 | 2019-09-17 | Microfabrica Inc. | Cantilever microprobes for contacting electronic components |
US8613846B2 (en) * | 2003-02-04 | 2013-12-24 | Microfabrica Inc. | Multi-layer, multi-material fabrication methods for producing micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties |
US10297421B1 (en) | 2003-05-07 | 2019-05-21 | Microfabrica Inc. | Plasma etching of dielectric sacrificial material from reentrant multi-layer metal structures |
TWI297045B (en) * | 2003-05-07 | 2008-05-21 | Microfabrica Inc | Methods and apparatus for forming multi-layer structures using adhered masks |
US9671429B2 (en) | 2003-05-07 | 2017-06-06 | University Of Southern California | Multi-layer, multi-material micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties |
US10641792B2 (en) | 2003-12-31 | 2020-05-05 | University Of Southern California | Multi-layer, multi-material micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties |
EP1561608B1 (en) * | 2004-02-06 | 2008-07-02 | C.R.F. Società Consortile per Azioni | Pressure sensing device for rotatable parts and pressure detection method therefor |
US20080093906A1 (en) * | 2005-04-22 | 2008-04-24 | Faurecia Sieges D'automobile | Method of Manufacturing a Motor Vehicle Seat, and a Seat Manufactured by Implementing the Method |
US8013696B2 (en) * | 2008-10-14 | 2011-09-06 | Nexteer (Beijing) Technology Co., Ltd. | Magnetic apparatus and method of manufacturing the magnetic apparatus |
US9646751B2 (en) | 2010-12-28 | 2017-05-09 | Hitachi Metals, Ltd. | Arcuate magnet having polar-anisotropic orientation, and method and molding die for producing it |
CN102760544B (zh) * | 2012-07-06 | 2015-03-25 | 东阳市中元磁业有限公司 | 高压脉冲群瞬时磁场辅助系统 |
DE102015012412A1 (de) | 2015-09-25 | 2017-03-30 | Wilo Se | Vorrichtung und Verfahren zur Herstellung ringförmiger Permanentmagnete |
CN105469930A (zh) * | 2015-12-17 | 2016-04-06 | 中磁科技股份有限公司 | 磁材压机充退磁系统 |
US11262383B1 (en) | 2018-09-26 | 2022-03-01 | Microfabrica Inc. | Probes having improved mechanical and/or electrical properties for making contact between electronic circuit elements and methods for making |
CN110165847B (zh) * | 2019-06-11 | 2021-01-26 | 深圳市瑞达美磁业有限公司 | 不同宽度波形的径向各向异性多极实心磁体的生产方法 |
CN111483034B (zh) * | 2020-05-25 | 2021-08-20 | 南通华兴磁性材料有限公司 | 扁平超薄型锰锌铁氧体磁芯成型方法 |
Family Cites Families (9)
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US3114715A (en) * | 1961-06-28 | 1963-12-17 | Philips Corp | Method of manufacturing an anisotropic ferromagnetic body |
GB1230815A (ko) * | 1967-06-13 | 1971-05-05 | ||
US4057606A (en) * | 1972-07-14 | 1977-11-08 | Fuji Electrochemical Co., Ltd. | Method of producing anisotropic ferrite magnet |
US4327346A (en) * | 1979-02-28 | 1982-04-27 | Tdk Electronics Co., Ltd. | Anisotropic polymeric magnet in the tubular form and process for producing the same |
JPS5815929B2 (ja) * | 1979-11-24 | 1983-03-28 | ティーディーケイ株式会社 | 径方向着磁永久磁石の製造方法 |
JPS5737803A (en) * | 1980-08-18 | 1982-03-02 | Matsushita Electric Ind Co Ltd | Manufacture of anisotropic magnet |
JPS57128909A (en) * | 1981-02-03 | 1982-08-10 | Tohoku Metal Ind Ltd | Manufacture of permanent magnet having a plurality of radial magnetic dipoles |
JPS57130407A (en) * | 1981-02-06 | 1982-08-12 | Daido Steel Co Ltd | Cylindrical anisotropic resin magnet |
JPS57199205A (en) * | 1981-06-03 | 1982-12-07 | Hitachi Metals Ltd | Cylindrical permanent magnet and manufacture thereof |
-
1983
- 1983-05-20 JP JP58088962A patent/JPS59216453A/ja active Granted
-
1984
- 1984-05-14 EP EP84105452A patent/EP0129052B1/en not_active Expired
- 1984-05-14 DE DE8484105452T patent/DE3465820D1/de not_active Expired
- 1984-05-15 US US06/610,499 patent/US4600555A/en not_active Expired - Fee Related
- 1984-05-18 KR KR1019840002728A patent/KR890002536B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4600555A (en) | 1986-07-15 |
JPS59216453A (ja) | 1984-12-06 |
DE3465820D1 (en) | 1987-10-08 |
EP0129052B1 (en) | 1987-09-02 |
KR890002536B1 (ko) | 1989-07-13 |
EP0129052A1 (en) | 1984-12-27 |
JPH0158747B2 (ko) | 1989-12-13 |
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