JP2007180373A5 - - Google Patents

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Publication number
JP2007180373A5
JP2007180373A5 JP2005378822A JP2005378822A JP2007180373A5 JP 2007180373 A5 JP2007180373 A5 JP 2007180373A5 JP 2005378822 A JP2005378822 A JP 2005378822A JP 2005378822 A JP2005378822 A JP 2005378822A JP 2007180373 A5 JP2007180373 A5 JP 2007180373A5
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JP
Japan
Prior art keywords
ndfeb
producing
sintered
filled
magnet
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JP2005378822A
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Japanese (ja)
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JP4818722B2 (en
JP2007180373A (en
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Priority to JP2005378822A priority Critical patent/JP4818722B2/en
Priority claimed from JP2005378822A external-priority patent/JP4818722B2/en
Publication of JP2007180373A publication Critical patent/JP2007180373A/en
Publication of JP2007180373A5 publication Critical patent/JP2007180373A5/ja
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Publication of JP4818722B2 publication Critical patent/JP4818722B2/en
Expired - Fee Related legal-status Critical Current
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Claims (6)

製品の形状と寸法に対応して設計された充填焼成容器にNdFeB系磁石用合金粉末（以下これを合金粉末という）を充填し、この合金粉末に磁界を印加して配向し、その後この合金粉末を充填焼成容器ごと加熱して、所望の形状と寸法を持つ焼結体を得るNdFeB系焼結磁石の製法において、前記充填焼成容器が内面に焼き付き防止用コーティングを施したものであることを特徴とする、NdFeB系焼結磁石の製造方法。 An NdFeB magnet alloy powder (hereinafter referred to as an alloy powder) is filled into a filling and firing container designed according to the shape and dimensions of the product, and this alloy powder is oriented by applying a magnetic field. In the method for producing a sintered NdFeB-based magnet that obtains a sintered body having a desired shape and size by heating the filled and fired container , the filled and fired container has an inner surface coated with an anti-seizure coating. A method for producing an NdFeB-based sintered magnet. 焼結処理の度に毎回新しいコーティングを施すことを特徴とする請求項１に記載のNdFeB焼結磁石の製造方法。   2. The method for producing a sintered NdFeB magnet according to claim 1, wherein a new coating is applied each time the sintering process is performed. 前記コーティングの材料が樹脂と焼結温度で溶融しない無機物質との混合物であることを特徴とする請求項２に記載のNdFeB焼結磁石の製造方法。   The method for producing a sintered NdFeB magnet according to claim 2, wherein the coating material is a mixture of a resin and an inorganic substance that does not melt at a sintering temperature. 充填焼成容器内に、コーティング材料とインパクトメディアの混合体を投入して、この混合体を揺動、撹拌して前記コーティングを施すことを特徴とする請求項１〜３のいずれかに記載のNdFeB系焼結磁石の製造方法。 The NdFeB according to any one of claims 1 to 3, wherein a mixture of a coating material and an impact medium is put into a filled firing container , and the mixture is shaken and stirred to apply the coating. A method for manufacturing a sintered magnet. 前記コーティングがセラミックから成るものであることを特徴とする請求項１に記載のNdFeB系焼結磁石の製造方法。   The method for producing a sintered NdFeB magnet according to claim 1, wherein the coating is made of ceramic. 請求項２、３又は５に記載の、内面にコーティングを施したNdFeB系焼結磁石製造用充填焼成容器。 The filled and fired container for producing a NdFeB-based sintered magnet according to claim 2, 3 or 5, wherein the inner surface is coated.
JP2005378822A 2005-12-28 2005-12-28 Manufacturing method of NdFeB-based sintered magnet and mold for manufacturing NdFeB-based sintered magnet Expired - Fee Related JP4818722B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005378822A JP4818722B2 (en) 2005-12-28 2005-12-28 Manufacturing method of NdFeB-based sintered magnet and mold for manufacturing NdFeB-based sintered magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005378822A JP4818722B2 (en) 2005-12-28 2005-12-28 Manufacturing method of NdFeB-based sintered magnet and mold for manufacturing NdFeB-based sintered magnet

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2008201033A Division JP4903758B2 (en) 2008-08-04 2008-08-04 Manufacturing method of NdFeB-based sintered magnet and mold for manufacturing NdFeB-based sintered magnet

Publications (3)

Publication Number Publication Date
JP2007180373A JP2007180373A (en) 2007-07-12
JP2007180373A5 true JP2007180373A5 (en) 2007-08-23
JP4818722B2 JP4818722B2 (en) 2011-11-16

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JP2005378822A Expired - Fee Related JP4818722B2 (en) 2005-12-28 2005-12-28 Manufacturing method of NdFeB-based sintered magnet and mold for manufacturing NdFeB-based sintered magnet

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JP (1) JP4818722B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4879843B2 (en) 2007-08-20 2012-02-22 インターメタリックス株式会社 Method for producing NdFeB-based sintered magnet and mold for producing NdFeB sintered magnet
US9475118B2 (en) * 2012-05-01 2016-10-25 United Technologies Corporation Metal powder casting
WO2015012412A1 (en) * 2013-07-24 2015-01-29 Ｎｄｆｅｂ株式会社 Process for producing rare earth sintered magnet and sintering mold for rare earth sintered magnet
CN103551563B (en) * 2013-10-11 2016-02-17 南通万宝磁石制造有限公司 A kind of regeneration method of rare earth permanent-magnetic material
DE102015013950A1 (en) * 2015-10-29 2017-05-04 Wilo Se Method and device for producing permanent magnets
CN111809100B (en) * 2020-07-17 2022-02-11 西安交通大学 NiCrAlY high-temperature sintered ZTA particle reinforced steel-based composite material and preparation method thereof

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