KR20020029944A - 전해구리도금한 r-t-b계 자석 및 그 도금 방법 - Google Patents
전해구리도금한 r-t-b계 자석 및 그 도금 방법Info
- Publication number
- KR20020029944A KR20020029944A KR1020027002972A KR20027002972A KR20020029944A KR 20020029944 A KR20020029944 A KR 20020029944A KR 1020027002972 A KR1020027002972 A KR 1020027002972A KR 20027002972 A KR20027002972 A KR 20027002972A KR 20020029944 A KR20020029944 A KR 20020029944A
- Authority
- KR
- South Korea
- Prior art keywords
- electrolytic copper
- copper plating
- magnet
- film
- electrolytic
- Prior art date
Links
Classifications
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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
- H01F41/026—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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/001—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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/934—Electrical process
- Y10S428/935—Electroplating
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12701—Pb-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
- Y10T428/12715—Next to Group IB metal-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12875—Platinum group metal-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12889—Au-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12896—Ag-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
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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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electroplating Methods And Accessories (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
Description
Claims (13)
- R-T-B계 자석(상기 R은 Y를 포함하는 희토류 원소 중 적어도 1종이며, 상기 T는 Fe 또는 Fe 및 Co 임)을 전해구리 도금하는 방법에 있어서,20∼150g/L의 황산구리 및 30∼250g/L의 킬레이트제를 함유하고, 구리이온 환원제를 함유하지 않으며, pH를 10.5∼l3.5로 조정한 전해구리 도금액을 사용하는 것을 특징으로 하는 전해구리 도금방법.
- 제1항에서,상기 킬레이트제로서 에틸렌디아민4초산(Ethylenediamine tetraacetic Acid, EDTA)을 이용하는 것을 특징으로 하는 전해구리 도금방법.
- 제1항 또는 제2항에서,상기 구리이온의 환원제가 포름알데히드인 것을 특징으로 하는 전해구리 도금방법.
- 제1항 내지 제3항 중 어느 한 항에서,상기 R-T-B계 자석이 R2T14B 금속간 화합물(상기 R은 Y를 포함하는 희토류 원소 중 적어도 1종이며, 상기 T는 Fe 또는 Fe 및 Co 임)을 주상으로 하는 것을 특징으로 하는 전해구리 도금방법.
- 전해구리 도금피막을 가지는 R-T-B계 자석으로서, 상기 전해구리 도금피막을 CuKα1선으로 X선 회절했을 때, (200)면에서의 X선 회절피크강도 I(200)와 (111)면에서의 X선 회절피크강도 I(111)와의 비[I(200)/I(111)]가 0.1∼0.45인 것을 특징으로 하는 R-T-B계 자석.
- 제5항에서,상기 전해구리 도금피막으로 이루어진 제1층 상에, Ni, NiㆍCu계 합금, NiㆍSn계 합금, NiㆍZn계 합금, Sn·Pb계 합금, Sn, Pb, Zn, ZnㆍFe계 합금, ZnㆍSn계 합금, Co, Cd, Au, Pd 및 Ag으로 이루어진 군으로부터 선택된 적어도 1종의 도금 피막으로 이루어진 제2층을 가지는 것을 특징으로 하는 R-T-B계 자석.
- 제6항에서,상기 제2층을 이루는 도금 피막은 전해 또는 무전해 니켈도금피막인 것을 특징으로 하는 R-T-B계 자석.
- 제5항 내지 제7항 중 어느 한 항에서,페록실 시험방법(JIS H 8617)으로 측정한 상기 전해구리 도금피막의 핀홀수가 0개/cm2이며, 비커스 경도가 260∼350인 것을 특징으로 하는 R-T-B 계 자석.
- 제5항 내지 제8항 어느 한 항에서,상기 제2층의 도금피막 상에 화성(化性) 피막을 가지는 것을 특징으로 하는 R-T-B계 자석.
- 제9항에서,상기 화성 피막의 표면이 알칼리 처리되어 있는 것을 특징으로 하는 R-T-B계 자석.
- 도금 피막을 가지는 R-T-B계 자석(상기 R은 Y를 포함하는 희토류 원소 중 적어도 1종이며, 상기 T는 Fe 또는 Fe 및 Co 임)으로서, 상기 도금 피막은 자석쪽에서 순차적으로 전해구리 도금피막, 전해 또는 무전해 니켈도금피막으로 이루어지고, 상기 전해구리 도금피막의 CuKα1선에 의한 X선 회절에 있어서, (200)면에서의 X선 회절피크강도 I(200)와 I(111)면으로부터의 X선 회절 피크 강도 I(l11)와의 비 [I(200)/I(111)]는 0.1∼0.45이며, 상기 전해구리 도금피막은 20∼150g/L의 황산구리 및 30∼250g/L의 킬레이트제를 함유하고, 구리이온 환원제를 함유하지 않으며, pH를 10.5∼13.5로 조정한 전해구리 도금액을 사용하는 전해구리 도금방법으로 형성된 것을 특징으로 하는 R-T-B계 자석.
- 제5항 내지 제10항 중 어느 한 항에서,회전기 또는 액츄에이터(actuator)에 이용하는 것을 특징으로 하는 R-T-B계 자석.
- 제l1항에서,회전기 또는 액츄에이터에 이용하는 것을 특징으로 하는 R-T-B계 자석.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000206810 | 2000-07-07 | ||
JPJP-P-2000-00206810 | 2000-07-07 | ||
JPJP-P-2001-00065821 | 2001-03-09 | ||
JP2001065821 | 2001-03-09 |
Publications (2)
Publication Number | Publication Date |
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KR20020029944A true KR20020029944A (ko) | 2002-04-20 |
KR100720015B1 KR100720015B1 (ko) | 2007-05-18 |
Family
ID=26595606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020027002972A KR100720015B1 (ko) | 2000-07-07 | 2001-07-04 | 전해구리도금한 r-t-b계 자석 및 그 도금 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6866765B2 (ko) |
EP (1) | EP1300489B1 (ko) |
KR (1) | KR100720015B1 (ko) |
CN (1) | CN1193115C (ko) |
WO (1) | WO2002004714A1 (ko) |
Cited By (4)
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KR100650488B1 (ko) * | 2004-06-18 | 2006-11-29 | 쯔루미소다 가부시끼가이샤 | 구리 도금 재료 및 구리 도금 방법 |
WO2014181998A1 (ko) * | 2013-05-09 | 2014-11-13 | 주식회사 엘지화학 | 전극 밀도 및 전극 공극률의 측정 방법 |
KR20170082230A (ko) * | 2016-01-06 | 2017-07-14 | 엘에스엠트론 주식회사 | 연성동박적층필름 및 그 제조방법 |
US9719905B2 (en) | 2013-05-09 | 2017-08-01 | Lg Chem, Ltd. | Methods of measuring electrode density and electrode porosity |
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JP2001355050A (ja) * | 2001-06-29 | 2001-12-25 | Sumitomo Special Metals Co Ltd | R−t−b−c系希土類磁性粉末およびボンド磁石 |
US7902062B2 (en) * | 2002-11-23 | 2011-03-08 | Infineon Technologies Ag | Electrodepositing a metal in integrated circuit applications |
US7785460B2 (en) * | 2004-08-10 | 2010-08-31 | Hitachi Metals, Ltd. | Method for producing rare earth metal-based permanent magnet having copper plating film on the surface thereof |
EP1879201B1 (en) * | 2005-04-15 | 2016-11-30 | Hitachi Metals, Ltd. | Rare earth sintered magnet and process for producing the same |
JP4670567B2 (ja) * | 2005-09-30 | 2011-04-13 | Tdk株式会社 | 希土類磁石 |
US20070175523A1 (en) * | 2006-01-31 | 2007-08-02 | Levey Kenneth R | Pressure relief assembly |
JP4033241B2 (ja) * | 2006-02-07 | 2008-01-16 | 日立金属株式会社 | 銅めっき被膜を表面に有する希土類系永久磁石の製造方法 |
JP4241906B1 (ja) * | 2008-05-14 | 2009-03-18 | 日立金属株式会社 | 希土類系永久磁石 |
CN101891280B (zh) * | 2010-05-14 | 2011-12-21 | 江西金达莱环保研发中心有限公司 | 一种处理重金属废水化学沉淀后的固液分离系统以及处理方法 |
JP5698196B2 (ja) | 2012-08-17 | 2015-04-08 | Jx日鉱日石金属株式会社 | 電解銅箔、並びにこれを用いた二次電池集電体及び二次電池 |
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CN104651779A (zh) | 2015-02-11 | 2015-05-27 | 烟台首钢磁性材料股份有限公司 | 一种用于钕铁硼磁体的镀膜设备及镀膜工艺 |
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JPH07176443A (ja) | 1993-12-20 | 1995-07-14 | Daido Steel Co Ltd | 異方性希土類磁石の製造方法 |
JP3377605B2 (ja) | 1994-06-22 | 2003-02-17 | 日本ニュークローム株式会社 | 耐食性磁性合金 |
WO1999023675A1 (fr) * | 1997-10-30 | 1999-05-14 | Sumitomo Special Metals Co., Ltd. | AIMANT LIE A BASE DE R-Fe-B EXTREMEMENT RESISTANT A LA CORROSION ET PROCEDE DE FABRICATION DUDIT AIMANT |
JP2000133541A (ja) | 1998-10-23 | 2000-05-12 | Sumitomo Special Metals Co Ltd | 高耐食性R−Fe−B系ボンド磁石の製造方法 |
-
2001
- 2001-07-04 CN CNB018019374A patent/CN1193115C/zh not_active Expired - Lifetime
- 2001-07-04 WO PCT/JP2001/005798 patent/WO2002004714A1/ja active Application Filing
- 2001-07-04 EP EP01947811.4A patent/EP1300489B1/en not_active Expired - Lifetime
- 2001-07-04 KR KR1020027002972A patent/KR100720015B1/ko active IP Right Grant
- 2001-07-04 US US10/070,389 patent/US6866765B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100650488B1 (ko) * | 2004-06-18 | 2006-11-29 | 쯔루미소다 가부시끼가이샤 | 구리 도금 재료 및 구리 도금 방법 |
WO2014181998A1 (ko) * | 2013-05-09 | 2014-11-13 | 주식회사 엘지화학 | 전극 밀도 및 전극 공극률의 측정 방법 |
US9719905B2 (en) | 2013-05-09 | 2017-08-01 | Lg Chem, Ltd. | Methods of measuring electrode density and electrode porosity |
KR20170082230A (ko) * | 2016-01-06 | 2017-07-14 | 엘에스엠트론 주식회사 | 연성동박적층필름 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
US6866765B2 (en) | 2005-03-15 |
EP1300489B1 (en) | 2017-06-07 |
CN1386146A (zh) | 2002-12-18 |
US20030052013A1 (en) | 2003-03-20 |
KR100720015B1 (ko) | 2007-05-18 |
WO2002004714A1 (en) | 2002-01-17 |
EP1300489A4 (en) | 2006-10-04 |
EP1300489A1 (en) | 2003-04-09 |
CN1193115C (zh) | 2005-03-16 |
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