RU93049098A - MATERIAL R-FE-B OF PERMANENT MAGNETS AND METHODS FOR PRODUCING THEM - Google Patents

MATERIAL R-FE-B OF PERMANENT MAGNETS AND METHODS FOR PRODUCING THEM

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Publication number
RU93049098A
RU93049098A RU93049098/02A RU93049098A RU93049098A RU 93049098 A RU93049098 A RU 93049098A RU 93049098/02 A RU93049098/02 A RU 93049098/02A RU 93049098 A RU93049098 A RU 93049098A RU 93049098 A RU93049098 A RU 93049098A
Authority
RU
Russia
Prior art keywords
alloy
phase
producing
permanent magnets
cast
Prior art date
Application number
RU93049098/02A
Other languages
Russian (ru)
Other versions
RU2113742C1 (en
Inventor
Канеко Юджи
Исигаки Наоюки
Токухара Коки
Original Assignee
Сумитомо Спешиал Металз Ко., Лтд.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP19288693A external-priority patent/JP3415208B2/en
Priority claimed from JP20719193A external-priority patent/JP3151088B2/en
Priority claimed from JP20719093A external-priority patent/JP3151087B2/en
Priority claimed from JP5207192A external-priority patent/JPH0745412A/en
Priority claimed from JP21217193A external-priority patent/JP3299000B2/en
Application filed by Сумитомо Спешиал Металз Ко., Лтд. filed Critical Сумитомо Спешиал Металз Ко., Лтд.
Publication of RU93049098A publication Critical patent/RU93049098A/en
Application granted granted Critical
Publication of RU2113742C1 publication Critical patent/RU2113742C1/en

Links

Claims (1)

Предметом изобретения является обеспечение материалов R-Fe-B постоянных магнитов, имеющих хорошую устойчивость к окислению и магнитные характеристики, и способ получения таких материалов, позволяющий эффективно их измельчать; при этом расплавленный R-Fe-B сплав определенного состава отливают в литой образец, имеющий специфические толщину листа и структуру, в котором фаза, обогащенная R, тонко диспергирована ниже уровня 5 мк, способом отливки с вытягиванием, литой образец подвергают гидрированию для самопроизвольного разрушения, после этого порошок сплава дегидрируют и стабилизируют для измельчения так, чтобы фракционировать кристаллические частицы основной фазы, составляющей болванку сплава; причем порошок с однородным распределением частиц можно получать с эффективностью, примерно в два раза большей, чем эффективность обычного способа, фазу, обогащенную R, и фазу R2Fe1 4B также фракционируют при размельчении прессованием в магнитном поле после ориентации импульсным магнитным полем получают высококачественный R-Fe-B постоянный магнит, имеющий хорошую устойчивость и магнитные характеристики магнитного сплава.The subject of the invention is the provision of materials R-Fe-B of permanent magnets having good oxidation stability and magnetic characteristics, and a method for producing such materials, allowing them to be effectively ground; wherein the molten R-Fe-B alloy of a certain composition is cast into a cast sample having a specific sheet thickness and structure in which the phase enriched in R is finely dispersed below 5 microns, by extrusion casting, the cast sample is subjected to hydrogenation for spontaneous destruction, after that, the alloy powder is dehydrated and stabilized for grinding so as to fractionate the crystalline particles of the main phase constituting the alloy ingot; moreover, a powder with a uniform distribution of particles can be obtained with an efficiency approximately two times greater than the efficiency of the conventional method, the phase enriched in R, and the phase R 2 Fe 1 4 B are also fractionated by grinding by pressing in a magnetic field after orientation by a pulsed magnetic field to obtain high-quality R-Fe-B is a permanent magnet having good stability and magnetic characteristics of a magnetic alloy.
RU93049098A 1993-07-06 1993-10-14 Permanent-magnet materials and their manufacturing processes RU2113742C1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP19288693A JP3415208B2 (en) 1993-07-06 1993-07-06 Method for producing R-Fe-B permanent magnet material
JP5-192886 1993-07-06
JP5-207190 1993-07-28
JP20719193A JP3151088B2 (en) 1993-07-28 1993-07-28 Method for producing raw material powder for R-Fe-B-based permanent magnet and alloy powder for adjusting raw material powder
JP20719093A JP3151087B2 (en) 1993-07-28 1993-07-28 Method for producing raw material powder for R-Fe-B-based permanent magnet and alloy powder for adjusting raw material powder
JP5-207192 1993-07-28
JP5207192A JPH0745412A (en) 1993-07-28 1993-07-28 R-fe-b permanent magnet material
JP5-207191 1993-07-28
JP5-212171 1993-08-03
JP21217193A JP3299000B2 (en) 1993-08-03 1993-08-03 Method for producing raw material powder for R-Fe-B-based permanent magnet and alloy powder for adjusting raw material powder

Publications (2)

Publication Number Publication Date
RU93049098A true RU93049098A (en) 1996-12-27
RU2113742C1 RU2113742C1 (en) 1998-06-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93049098A RU2113742C1 (en) 1993-07-06 1993-10-14 Permanent-magnet materials and their manufacturing processes

Country Status (7)

Country Link
EP (1) EP0633581B1 (en)
KR (1) KR0131060B1 (en)
CN (1) CN1076115C (en)
AT (1) ATE165477T1 (en)
DE (1) DE69318147T2 (en)
RU (1) RU2113742C1 (en)
TW (1) TW272293B (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666635A (en) * 1994-10-07 1997-09-09 Sumitomo Special Metals Co., Ltd. Fabrication methods for R-Fe-B permanent magnets
US5858123A (en) * 1995-07-12 1999-01-12 Hitachi Metals, Ltd. Rare earth permanent magnet and method for producing the same
US6319335B1 (en) 1999-02-15 2001-11-20 Shin-Etsu Chemical Co., Ltd. Quenched thin ribbon of rare earth/iron/boron-based magnet alloy
EP1059645B1 (en) 1999-06-08 2006-06-14 Shin-Etsu Chemical Co., Ltd. Thin ribbon of rare earth-based permanent magnet alloy
CN1182548C (en) 2000-07-10 2004-12-29 株式会社新王磁材 Rear-earth magnet and its producing method
KR100446193B1 (en) * 2002-05-29 2004-08-30 주식회사 태평양금속 Method and Apparatus for manufacturing permanent magnet using electric conductor film
US7618497B2 (en) 2003-06-30 2009-11-17 Tdk Corporation R-T-B based rare earth permanent magnet and method for production thereof
JP4179973B2 (en) 2003-11-18 2008-11-12 Ｔｄｋ株式会社 Manufacturing method of sintered magnet
JP4656323B2 (en) 2006-04-14 2011-03-23 信越化学工業株式会社 Method for producing rare earth permanent magnet material
US7955443B2 (en) 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
CN100394518C (en) * 2006-08-04 2008-06-11 北京工业大学 Method for preparing high coercive force sintering rare-earth-iron-p permanent magnetic material
JP5090359B2 (en) * 2006-09-14 2012-12-05 株式会社アルバック Permanent magnet and method for manufacturing permanent magnet
RU2009123435A (en) 2006-11-21 2010-12-27 Улвак, Инк. (Jp) METHOD FOR PRODUCING ORIENTED BODY, PRESSED BODY AND SINTERED BODY, AND ALSO METHOD FOR PRODUCING PERMANENT MAGNET
WO2008075711A1 (en) * 2006-12-21 2008-06-26 Ulvac, Inc. Permanent magnet and method for producing permanent magnet
CN101393791B (en) * 2007-09-21 2012-10-03 有研稀土新材料股份有限公司 Anisotropic magnetic powder and manufacturing method thereof
CN101872668B (en) * 2009-04-23 2014-06-25 北京中科三环高技术股份有限公司 Sintered NdFeB rear-earth permanent magnet with fine magnetization characteristic and manufacturing method thereof
CN102087917B (en) * 2009-12-02 2014-06-25 北京中科三环高技术股份有限公司 Preparation method and pressing device for radiation-oriented magnet ring or multipolar magnet ring
JP5572673B2 (en) 2011-07-08 2014-08-13 昭和電工株式会社 R-T-B system rare earth sintered magnet alloy, R-T-B system rare earth sintered magnet alloy manufacturing method, R-T-B system rare earth sintered magnet alloy material, R-T-B system rare earth Sintered magnet, method for producing RTB-based rare earth sintered magnet, and motor
EP2745298B1 (en) 2011-08-17 2019-12-11 Regents of the University of Minnesota Technique and system for forming iron nitride permanent magnet
CN103797549B (en) 2011-12-27 2016-07-06 因太金属株式会社 NdFeB based sintered magnet
CN106448984A (en) 2011-12-27 2017-02-22 因太金属株式会社 NdFeB SYSTEM SINTERED MAGNET
JP6119548B2 (en) * 2012-10-17 2017-04-26 信越化学工業株式会社 Manufacturing method of rare earth sintered magnet
CN103887028B (en) * 2012-12-24 2017-07-28 北京中科三环高技术股份有限公司 A kind of Sintered NdFeB magnet and its manufacture method
JP6238444B2 (en) 2013-01-07 2017-11-29 昭和電工株式会社 R-T-B rare earth sintered magnet, R-T-B rare earth sintered magnet alloy and method for producing the same
CN112164539A (en) * 2013-02-07 2021-01-01 明尼苏达大学董事会 Iron nitride permanent magnet and technique for forming iron nitride permanent magnet
JP2016536777A (en) 2013-06-27 2016-11-24 リージェンツ オブ ザ ユニバーシティ オブ ミネソタ Magnet containing iron nitride material and iron nitride material
JP2017517630A (en) 2014-03-28 2017-06-29 リージェンツ オブ ザ ユニバーシティ オブ ミネソタ Iron Nitride Magnetic Material Containing Coated Nanoparticles
US9994949B2 (en) 2014-06-30 2018-06-12 Regents Of The University Of Minnesota Applied magnetic field synthesis and processing of iron nitride magnetic materials
EP3178099A4 (en) 2014-08-08 2018-04-18 Regents of the University of Minnesota Multilayer iron nitride hard magnetic materials
US10002694B2 (en) 2014-08-08 2018-06-19 Regents Of The University Of Minnesota Inductor including alpha″-Fe16Z2 or alpha″-Fe16(NxZ1-x)2, where Z includes at least one of C, B, or O
US10072356B2 (en) 2014-08-08 2018-09-11 Regents Of The University Of Minnesota Magnetic material including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16Z2 and α″-Fe16N2, where Z includes at least one of C, B, or O
EP3177752A1 (en) 2014-08-08 2017-06-14 Regents of the University of Minnesota Forming iron nitride hard magnetic materials using chemical vapor deposition or liquid phase epitaxy
DE102016205243A1 (en) * 2016-03-30 2017-10-05 Thyssenkrupp Ag Apparatus and method for processing a sample material
CN108481877B (en) * 2018-03-10 2020-06-23 葛理想 Fragmentation treatment process of magnetic material for electromagnetic shielding
US12018386B2 (en) 2019-10-11 2024-06-25 Regents Of The University Of Minnesota Magnetic material including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16Z2 and α″-Fe16N2, where Z includes at least one of C, B, or O
JP7409285B2 (en) * 2020-10-22 2024-01-09 トヨタ自動車株式会社 Rare earth magnet and its manufacturing method
CN115747611B (en) * 2022-10-13 2023-10-20 包头金山磁材有限公司 Auxiliary alloy cast sheet, high-remanence high-coercivity neodymium-iron-boron permanent magnet and preparation method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
JPS62291901A (en) * 1986-06-12 1987-12-18 Toshiba Corp Permanent magnet
CN1051864C (en) * 1986-08-04 2000-04-26 住友特殊金属株式会社 Rare earth permanent magnet having excellent corrosion resistance
GB2201426B (en) * 1987-02-27 1990-05-30 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
DE3850001T2 (en) * 1987-08-19 1994-11-03 Mitsubishi Materials Corp Magnetic rare earth iron boron powder and its manufacturing process.
JPH01119001A (en) * 1987-10-30 1989-05-11 Kubota Ltd Manufacture of permanent magnetic powder containing rare earth element
JPH0529117A (en) * 1990-10-22 1993-02-05 Kawasaki Steel Corp Manufacture of rare earth-transition metal anisotropic magnetic powder
DE69202515T2 (en) * 1991-06-04 1995-09-21 Shinetsu Chemical Co Process for the production of two-phase permanent magnets based on rare earths.
JP2782024B2 (en) * 1992-01-29 1998-07-30 住友特殊金属株式会社 Method for producing raw material powder for R-Fe-B-based permanent magnet

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