KR100579914B1 - 적층극이방복합자석의 제조방법 - Google Patents
적층극이방복합자석의 제조방법 Download PDFInfo
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- KR100579914B1 KR100579914B1 KR1020030056047A KR20030056047A KR100579914B1 KR 100579914 B1 KR100579914 B1 KR 100579914B1 KR 1020030056047 A KR1020030056047 A KR 1020030056047A KR 20030056047 A KR20030056047 A KR 20030056047A KR 100579914 B1 KR100579914 B1 KR 100579914B1
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- 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
-
- 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
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
- Y10T29/49076—From comminuted material
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
- Y10T29/49078—Laminated
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
이때, 상기 저자기특성을 갖는 분말중에서 Nd-Fe-B계 분말을 선택할 경우 하기의 고자기특성을 갖는 분말중에서 가장 고자기를 갖는 Nd-Fe-B계 분말과 동일하게 되어 저자기특성 분말에 상대적으로 대응되는 고자기특성의 분말을 선택할 수 없게 된다.
상기와 같이 저자기특성을 갖는 분말이 고자기특성을 갖는 분말에 대한 상대적 선택이 아닐경우 즉, 상기에서 설명한 바와같은 저자기특성을 갖는 분말로 고자기특성을 갖는 분말중에서 가장 고자기를 갖는 하기의 Nd-Fe-B계 분말을 선택할 경우 이에 대응되는 고자기분말을 찾을 수 없게 되는 문제가 있어 저자기특성을 갖는 분말을 먼저 선택할 경우 고자기특성을 갖는 분말에 대하여 상대적으로 선택을 하는 것이 바람직 하다.
즉, 상기 저자기특성을 갖는 영구자석 분말은, 상대적으로 선택된 고자기특성을 갖는 영구자석분말을 제외한 나머지 중에서 상기 고자기특성 분말보다 상대적으로 저자기특성을 갖는 페라이트(Ferrite)계(Ba계, Sr계, Pb계) 분말 및 이의 혼합계 분말, 알리코분말, Fe-Cr-Co분말, SmCo계 분말, Sm-Fe-N계 분말, Nd-Fe-B계 분말 중에서 어느 하나가 선택되어 사용된다.
그리고, 바람직한 저자기특성을 갖는 영구자석분말로는, 페라이트(Ferrite)계(Ba계, Sr계, Pb계) 분말 및 이의 혼합계 분말, 알리코분말, Fe-Cr-Co분말, SmCo계 분말, Sm-Fe-N계 분말중에서 어느 하나가 선택되어 사용된다.
예를들면, 100의 Nd 영구자석분말과 20의 페라이트분말을 동일비율로 혼합할 경우 약 50정도의 자기특성을 갖는 자석분말을 얻을수 있는 것이다.
그리고, 상기에서 제시된 분말은 알리코분말 < Fe-Cr-Co분말 < 페라이트(Ferrite)계(Ba계, Sr계, Pb계) 분말 < SmCo계 분말 < Sm-Fe-N계 분말 < Nd-Fe-B계 분말의 순서로 자기특성을 갖게 되는데 여기서 저자기특성의 영구자석으로 SmCo계 분말을 사용할 경우 상기 SmCo계 분말보다 상대적으로 고자기 특성을 갖는 Sm-Fe-N계 분말이나 Nd-Fe-B계 분말을 고자기 분말로 사용하며, 상기에서 SmCo계 분말은 저자기및 고자기 분말에 모두 사용할 수 있게 된다.
즉, 고자기특성을 갖는 영구자석분말은 저자기특성을 갖는 영구자석 분말중 가장 저자기인 페라이트계분말이 제외된 것으로서 고자기특성 분말에 대응되는 상대적 선택시 저자기특성 분말의 선택이 용이하게 된다.
이때, 상기 2~4개의 성분을 혼합한 분말과 페라이트(Ferrite)계의 분말을 각각 혼합시킨 분말의 조성비는 구체적으로 한정할 필요가 없으며, 상기의 조성비는 저자기특성에 사용되는 분말에 대응되어 상대적으로 고자기 특성을 갖는 조성비 이면 가능하고, 상기의 조성비는 일반적으로 알려져 있다.
No. | 사용된 영구자석분말 | 보자력변화율 (%/℃) | 잔류자속밀도 (kG) | 보자력 (kOe) | 최대자기에너지적 (MGOe) |
1 | OP-71(89wt%) + Nylon12(11wt%)* | 0.45 | 2.71 | 3.34 | 1.85 |
2 | MFC-15(93wt%)+ Nylon12(7wt%)* | -0.45 | 7.89 | 11.94 | 12.97 |
3 | Sm-Fe-N(92wt%)+ Nylon12(8wt%)* | -0.4 | 7.20 | 7.17 | 11.68 |
4 | 컴파운드1(50vol%) +컴파운드2(50vol%) | -0.06 | 4.75 | 8.40 | 5.02 |
5 | 컴파운드1(50vol%) +컴파운드3(50vol%) | -0.04 | 4.68 | 5.24 | 5.12 |
6 | 컴파운드2(50vol%) +컴파운드3(50vol%) | -0.42 | 7.45 | 8.90 | 12.06 |
자석 크기 | 극수 | 분말 소요량 | 표면자속밀도 최대치 |
외경50mmΦ×내경30mmΦ ×높이33mmt | 8 | 페라이트(183g) | 1800G |
자석 크기 | 극수 | 분말 소요량 | 표면자속밀도 최대치 |
외경50mmΦ×내경30mmΦ ×높이33mmt | 8 | Nd-Fe-B분말(250g) | 4300G |
자석 크기 | 극수 | 분말 소요량 | 표면자속밀도 최대치 |
외경50mmΦ×내경46mmΦ ×높이30mmt | 8 | Nd-Fe-B분말(47g) | 2180G |
자석 크기 | 극수 | 분말 소요량 | 표면자속밀도 최대치 |
외경50mmΦ×내경30mmΦ ×높이33mmt | 8 | Nd-Fe-B분말(125g) +페라이트(92g) | 3050G |
자석 크기 | 극수 | 분말 소요량 | 표면자속밀도 최대치 |
외경50mmΦ×내경30mmΦ ×높이33mmt | 8 | Nd-Fe-B분말(47g) +페라이트(149g) | 3100G |
Claims (9)
- 상대적으로 선택되는 저자기특성과 고자기특성을 갖는 영구자석분말을 이용하여 각각의 분말을 열가소성수지와 혼합 및 혼련하여 각각의 펠릿(pellet)을 제조하고, 1차로 저자기특성 펠릿(pellet)을 이용하여 다수 극수 및 형상의 극이방성 및 이방성 금형 속에서 사출성형하며, 1차로 사출된 극이방성 및 이방성 수지자석을 1차 사출금형 외경보다 큰 극이방 금형에 삽입하여 고자기특성을 갖는 펠릿(pellet)으로 자장사출 성형하여 다수의 극수 및 적층수를 갖는 극이방복합자석을 이루어지는 것을 특징으로 하는 적층극이방복합자석의 제조방법.
- 제1항에 있어서,상기의 저자기특성을 갖는 극이방 및 이방성 수지자석이 내측에 구성되고, 고자기특성을 갖는 극이방수지자석이 외측에 구성되되, 적층극이방복합자석에서는 내측 및 외측에 서로 다른 온도특성을 갖는 영구자석분말을 사용하여 이루어지는 것을 특징으로 하는 적층극이방복합자석의 제조방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 제1항 또는 제2항에 있어서,상기의 적층극이방복합자석은 극수를 2∼100극으로 이루고, 외경크기를 5∼500mmΦ로 이루며, 높이를 5∼500mm로 이루어지도록 하는 것을 특징으로 하는 적층극이방복합자석의 제조방법.
- 제1항 또는 제2항에 있어서,상기의 적층극이방복합자석은 적층수를 2∼4층으로 이루고, 적층간의 두께차이를 1:0.1∼10의 범위로 구성하도록 하는 것을 특징으로 하는 적층극이방복합자석의 제조방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030056047A KR100579914B1 (ko) | 2003-08-13 | 2003-08-13 | 적층극이방복합자석의 제조방법 |
JP2003400243A JP2005064448A (ja) | 2003-08-13 | 2003-11-28 | 積層極異方複合磁石の製造方法 |
US10/834,302 US7328500B2 (en) | 2003-08-13 | 2004-04-28 | Method of manufacturing laminated polar anisotropic hybrid magnet |
CNB2004100374379A CN1312708C (zh) | 2003-08-13 | 2004-04-30 | 层压的极性各向异性混合磁体的制备方法 |
Applications Claiming Priority (1)
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KR1020030056047A KR100579914B1 (ko) | 2003-08-13 | 2003-08-13 | 적층극이방복합자석의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20050018412A KR20050018412A (ko) | 2005-02-23 |
KR100579914B1 true KR100579914B1 (ko) | 2006-05-15 |
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KR1020030056047A Expired - Fee Related KR100579914B1 (ko) | 2003-08-13 | 2003-08-13 | 적층극이방복합자석의 제조방법 |
Country Status (4)
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US (1) | US7328500B2 (ko) |
JP (1) | JP2005064448A (ko) |
KR (1) | KR100579914B1 (ko) |
CN (1) | CN1312708C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101071424B1 (ko) * | 2007-12-27 | 2011-10-10 | 자화전자(주) | 래디얼 이방성 소결자석의 제조방법 |
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JP3938179B2 (ja) * | 2004-11-18 | 2007-06-27 | 松下電器産業株式会社 | 交流電源直結型ブラシレスdcモータおよびそれを搭載した電気機器 |
JP4816146B2 (ja) * | 2006-03-03 | 2011-11-16 | パナソニック株式会社 | シート状希土類ボンド磁石およびその製造方法とそれを用いたモータ |
KR100904910B1 (ko) * | 2007-05-11 | 2009-06-29 | 영 춘 정 | 무정류자 모터의 회전자 |
US7791232B2 (en) * | 2008-05-02 | 2010-09-07 | Black & Decker Inc. | Power tool having an electronically commutated motor and double insulation |
WO2009142005A1 (ja) * | 2008-05-23 | 2009-11-26 | パナソニック株式会社 | 異方性を連続方向制御した希土類-鉄系リング磁石の製造方法 |
CN101774253A (zh) * | 2010-02-02 | 2010-07-14 | 威海利奥泰儆自动化设备有限公司 | 一种永磁齿轮的制造方法 |
US9666341B2 (en) | 2010-04-05 | 2017-05-30 | Aichi Steel Corporation | Production method for anisotropic bonded magnet and production apparatus for same |
WO2012090841A1 (ja) * | 2010-12-28 | 2012-07-05 | 日立金属株式会社 | 極異方性配向を有する円弧状磁石、その製造方法、及びそれを製造するための金型 |
KR101229464B1 (ko) * | 2011-05-27 | 2013-02-04 | 주식회사 아모텍 | 링 타입 극이방성 자석을 갖는 로터 및 이를 이용한 모터 |
CN202856488U (zh) | 2012-08-03 | 2013-04-03 | 埃塞克科技有限公司 | 横向磁通发电机 |
US9559558B2 (en) | 2012-09-24 | 2017-01-31 | Eocycle Technologies Inc. | Modular transverse flux electrical machine assembly |
CA2829812A1 (en) | 2012-10-17 | 2014-04-17 | Eocycle Technologies Inc. | Transverse flux electrical machine rotor |
KR101367797B1 (ko) * | 2013-04-10 | 2014-02-28 | 세아씰텍(주) | 영구자석 제조용 이방화 장치 |
FR3008224B1 (fr) * | 2013-07-08 | 2015-08-07 | Commissariat Energie Atomique | Aimant fritte annulaire a aimantation radiale, presentant une tenue mecanique renforcee |
CN106298216B (zh) * | 2015-05-13 | 2020-04-28 | 青岛海尔智能技术研发有限公司 | 磁场系统装配方法 |
CN106312077B (zh) * | 2015-06-23 | 2021-04-13 | 宁夏君磁新材料科技有限公司 | 亚微米各向异性钐铁氮磁粉及其杂化粘结磁体的制备方法 |
DE102015213957B4 (de) * | 2015-07-23 | 2019-03-14 | Volkswagen Aktiengesellschaft | Verfahren zur Herstellung eines Hybridmagneten sowie mit dem Verfahren herstellbarer Hybridmagnet und eine den Hybridmagnet umfassende elektrische Maschine |
US11651893B2 (en) * | 2018-09-27 | 2023-05-16 | Nichia Corporation | Method of preparing molds for polar anisotropic ring-shaped bonded magnet molded articles |
CN115036092B (zh) * | 2022-07-22 | 2023-07-21 | 横店集团东磁股份有限公司 | 一种复合磁环及其制备方法 |
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WO1991001562A1 (en) * | 1989-07-24 | 1991-02-07 | Yuugen Kaisha Kanex | Anisotropic plastic-bonded magnet |
US5145614A (en) * | 1990-02-14 | 1992-09-08 | Canon Kabushiki Kaisha | Process for preparing magnet made of resin |
CN1110426A (zh) * | 1994-04-15 | 1995-10-18 | 宗贵升 | 磁性能可逐级调整的多相复合永磁材料 |
JPH088134A (ja) * | 1995-05-08 | 1996-01-12 | Seiko Epson Corp | 異方性永久磁石 |
JP2000195714A (ja) * | 1998-10-23 | 2000-07-14 | Sumitomo Metal Mining Co Ltd | 極異方性希土類ボンド磁石とその製造方法及び永久磁石型モ―タ |
CN1315679A (zh) * | 2000-03-24 | 2001-10-03 | 日立金属株式会社 | 磁辊 |
-
2003
- 2003-08-13 KR KR1020030056047A patent/KR100579914B1/ko not_active Expired - Fee Related
- 2003-11-28 JP JP2003400243A patent/JP2005064448A/ja active Pending
-
2004
- 2004-04-28 US US10/834,302 patent/US7328500B2/en active Active
- 2004-04-30 CN CNB2004100374379A patent/CN1312708C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101071424B1 (ko) * | 2007-12-27 | 2011-10-10 | 자화전자(주) | 래디얼 이방성 소결자석의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
US20050034788A1 (en) | 2005-02-17 |
CN1581383A (zh) | 2005-02-16 |
US7328500B2 (en) | 2008-02-12 |
KR20050018412A (ko) | 2005-02-23 |
JP2005064448A (ja) | 2005-03-10 |
CN1312708C (zh) | 2007-04-25 |
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