EA201000508A1 - COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION - Google Patents

COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION

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Publication number
EA201000508A1
EA201000508A1 EA201000508A EA201000508A EA201000508A1 EA 201000508 A1 EA201000508 A1 EA 201000508A1 EA 201000508 A EA201000508 A EA 201000508A EA 201000508 A EA201000508 A EA 201000508A EA 201000508 A1 EA201000508 A1 EA 201000508A1
Authority
EA
Eurasian Patent Office
Prior art keywords
sintered
permanent
magnet
composition
permanent magnet
Prior art date
Application number
EA201000508A
Other languages
Russian (ru)
Other versions
EA014583B1 (en
Inventor
Михаил Михайлович Надеев
Владимир Павлович Менушенков
Александр Григорьевич Савченко
Original Assignee
Ооо "Фрязинские Магнитные Технологии"
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
Application filed by Ооо "Фрязинские Магнитные Технологии" filed Critical Ооо "Фрязинские Магнитные Технологии"
Priority to EA201000508A priority Critical patent/EA201000508A1/en
Publication of EA014583B1 publication Critical patent/EA014583B1/en
Publication of EA201000508A1 publication Critical patent/EA201000508A1/en

Links

Abstract

Композиция для получения спеченного высококоэрцитивного постоянного магнита, имеющего микростуктуру, образованную зернами магнитотвердой фазы, разделенными немагнитной прослойкой размером от 5 до 50 нм, представляющая собой смесь порошков трех сплавов - базового сплава А на основе системы Nd-(Fe, Co)-B в количестве не менее 80 мас.%, магнитного сплава-добавки А1 на основе соединений легкого редкоземельного элемента R и переходного металла Т в количестве не более 15 мас.% и немагнитного сплава-добавки А2 на основе соединений тяжелого редкоземельного элемента R с немагнитными металлами М1 и/или М2 в количестве не более 5 мас.%; постоянный магнит, полученный на основе указанной композиции; и способ получения спеченного высококоэрцитивного постоянного магнита.The composition for producing a sintered high-coercive permanent magnet having a microstructure formed by magnetic hard phase grains separated by a nonmagnetic interlayer from 5 to 50 nm in size, which is a mixture of powders of three alloys - base alloy A based on Nd- (Fe, Co) -B in quantity not less than 80 wt.%, a magnetic alloy-additive A1 based on the compounds of the light rare earth element R and a transition metal T in an amount not more than 15 wt.% and a non-magnetic alloy-additive A2 based on the compounds of the rare rare earth R element of nonmagnetic metals M1 and / or M2 in an amount of not more than 5 wt.%; permanent magnet, obtained on the basis of the specified composition; and a method for producing a sintered high coercive permanent magnet.

EA201000508A 2010-03-15 2010-03-15 COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION EA201000508A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA201000508A EA201000508A1 (en) 2010-03-15 2010-03-15 COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA201000508A EA201000508A1 (en) 2010-03-15 2010-03-15 COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION

Publications (2)

Publication Number Publication Date
EA014583B1 EA014583B1 (en) 2010-12-30
EA201000508A1 true EA201000508A1 (en) 2010-12-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EA201000508A EA201000508A1 (en) 2010-03-15 2010-03-15 COMPOSITION FOR OBTAINING A PERMANENT SINTERED MAGNET, A SINTERED PERMANENT MAGNET AND A METHOD FOR ITS PREPARATION

Country Status (1)

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EA (1) EA201000508A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015057180A1 (en) * 2013-10-14 2015-04-23 Анатолий Иванович ОЛЕФИРЕНКО Permanent magnet preparation method
RU2680254C2 (en) * 2013-10-14 2019-02-19 Анатолий Иванович Олефиренко Method of manufacturing permanent magnets
RU2690867C1 (en) * 2018-12-13 2019-06-06 Акционерное общество "Научно-производственное объединение "Магнетон" Mixture for producing thermostable magnetic alloys with rare-earth metals based on nd-fe-b system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2642508C1 (en) * 2016-11-21 2018-01-25 федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский ядерный университет "МИФИ" (НИЯУ МИФИ) METHOD FOR PRODUCING HIGH-COERCIVITY MAGNETS FROM ALLOYS ON BASIS OF Nd-Fe-B
JP7201332B2 (en) * 2018-04-09 2023-01-10 トヨタ自動車株式会社 Rare earth magnet manufacturing method and manufacturing apparatus used therefor
RU2693887C1 (en) * 2018-12-19 2019-07-05 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Method of producing corrosion-resistant permanent magnets
RU2767131C1 (en) * 2021-03-18 2022-03-16 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method for producing sintered rare-earth magnets from secondary raw materials

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135403C2 (en) * 1991-10-26 1994-06-16 Vacuumschmelze Gmbh SE-Fe-B permanent magnet and process for its manufacture
JP2001006911A (en) * 1999-06-21 2001-01-12 Shin Etsu Chem Co Ltd Manufacture of rare earth permanent magnet
RU2174261C1 (en) * 2000-12-26 2001-09-27 Московский государственный институт стали и сплавов (технологический университет) Material for rare-earth permanent magnets and its production process
RU2321913C2 (en) * 2005-11-30 2008-04-10 Открытое акционерное общество "Машиностроительный завод" Method for manufacture of permanent magnets from rare-earth metals
JP2007250605A (en) * 2006-03-14 2007-09-27 Tdk Corp Method for manufacturing r-t-b-based rare-earth permanent magnet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015057180A1 (en) * 2013-10-14 2015-04-23 Анатолий Иванович ОЛЕФИРЕНКО Permanent magnet preparation method
RU2680254C2 (en) * 2013-10-14 2019-02-19 Анатолий Иванович Олефиренко Method of manufacturing permanent magnets
RU2690867C1 (en) * 2018-12-13 2019-06-06 Акционерное общество "Научно-производственное объединение "Магнетон" Mixture for producing thermostable magnetic alloys with rare-earth metals based on nd-fe-b system

Also Published As

Publication number Publication date
EA014583B1 (en) 2010-12-30

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