JP2017532770A - 粒界工学 - Google Patents
粒界工学 Download PDFInfo
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- JP2017532770A JP2017532770A JP2017510403A JP2017510403A JP2017532770A JP 2017532770 A JP2017532770 A JP 2017532770A JP 2017510403 A JP2017510403 A JP 2017510403A JP 2017510403 A JP2017510403 A JP 2017510403A JP 2017532770 A JP2017532770 A JP 2017532770A
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- powder
- rare earth
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- magnetic product
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/023—Hydrogen absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0306—Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
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Abstract
Description
本件出願は、2014年8月15日に出願された米国仮特許出願第62/037,754号及び2015年6月17日に出願された米国非仮特許出願第14/742,080号の優先権を主張し、それらの内容は、引用により本明細書中に組み込まれている。
本開示は、粒界工学(GBE)を用いるネオジム−鉄−ホウ素(Nd−Fe−B)焼結磁石の製造に関する。
プロセスは、例えば、粒子サイズ、整列状態、密度、エネルギー積(BHmax)、残留磁気(Br)、及び保磁力(iHc)の所望の組合せなどの特定の性能特性を有するNd2Fe14B永久磁石の作製を含み得る。例えば、粒界工学(GBE)プロセスは、粒界改質されたリッチな相を有するNd−Fe−B永久磁石の生成を含み得る。GBEプロセスは、新たな磁性材料、例えば、消費者向け製品において以前に用いられたことがないものからか、再生磁性材料、例えば、消費者向け製品において以前用いられたものからか、又は双方から新たな磁石を作製し得る。
プロセスは、例えば、粒子サイズ、整列状態、密度、エネルギー積(BHmax)、残留磁気(Br)、及び保磁力(iHc)の所望の組合せなどの、特定の性能特性を有するNd2Fe14B永久磁石の作製を含み得る。例えば、粒界工学(GBE)プロセスは、粒界改質されたリッチな相を有するNd−Fe−B永久磁石の製造を含み得る。GBEプロセスは、新たな磁性材料、例えば、消費者向け製品において以前に用いられたことがないものからか、再生磁性材料、例えば、消費者向け製品において以前用いられたものからか、又は双方から新たな磁石を作製し得る。GBEプロセスは、粒界改質(GBM)プロセスとも称し得る。
これらの実施例は、GBEプロセスを用いて、最小限の量のドーパントを用いて、永久磁石の総合的な磁気性能を向上し得ることを実証する。例えば、GBEプロセスは、図6に示されるように保磁力の27%の増加及び残留磁気の0%の減少、又は図7に示されるように保磁力の83%の増加及び残留磁気の6%の減少、又は図8に示されるように保磁力の60%の増加及び残留磁気の3%の減少をもたらし得る。例えば、図6は、0.5at%の添加を伴う、例えば、高いエネルギーをもたらすNd又はDyを伴うNd−Fe−B型焼結磁石の変形の一例を示す。0.5at%の添加を伴う最終磁石は、1.423Tの残留磁気(Br)、1042kA/mの保磁力(iHc)、及び391kJ/m3のエネルギー積(BHmax)を有する。図7は、3at%の添加を伴う、例えば、高温での応用に適した高い保磁力をもたらすDyを伴うNd−Fe−B型焼結磁石の変形の一例を示す。3at%の添加を伴う最終磁石は、1.29Tの残留磁気(Br)、1900kA/mの保磁力(iHc)、及び323kJ/m3のエネルギー積(BHmax)を有する。両磁石の密度は、7.56g/cm3である。
GBE技術を用いて作製された磁石は、向上した温度性能を有する。例えば、GBE技術を用いて作製された磁石は、向上した熱的安定性及び向上した磁気性能を有する。例えば、寿命の終わりの製品由来のNd−Fe−B再生可能材料などの再生磁石は、該再生Nd−Fe−B磁石を作製するために加工されたインプット材料、例えば、初使用磁石と比較して、向上した熱安定性を有し得る。インプットされた初使用、又は概ね初使用のNd−Fe−B磁性材料から作られ、GBE技術を用いて加工された磁石は、他のプロセスを用いて作られた磁石と比較して、向上した熱安定性を有し得る。
いくつかの例において、廃棄磁石を、GBE技術を用いて加工してもよい。例えば、GBEシステムは、例えば、廃棄磁石の作製を含む工程902から908を用いて磁石を作製し得る。いくつかの例において、該廃棄磁石は、別のプロセスを用いて作製してもよく、又は別のシステムからGBEシステムにより入手してもよい。
いくつかの実施において、GBEシステムが、スプレー微粒化装置を使用する場合、該GBEシステムは、初め、測定密度が8.375g/cm3、及び理論値からの差異が約95〜98%の単一相のNd11.92Dy42.32Co38.39Cu5.34Fe2.03at%粉末を使用してもよい。該スプレー微粒化装置は、8.08g/cm3の密度を有するNd11.92Dy42.32Co38.39Cu5.34Fe2.03at%前駆体を作製し得る。その後、GBEシステムは、該Nd11.92Dy42.32Co38.39Cu5.34Fe2.03at%前駆体、例えば、前記微粒化粉末を、Nd2Fe14B焼結ブロックと共に水素混合反応器へと移送して、該前駆体及び該焼結ブロックから複合粉末を生成してもよい。
いくつかの実施において、GBEプロセスを用いて生成された最終磁石製品は、他の磁石、例えば、他の再生磁石と比較して向上した温度安定性を有し得る。例えば、GBEシステムは、例えば、水素混合プロセスを用いてNd−Fe−B材料から粉末を作製し、該粉末をNd11.92Dy42.32Co38.39Cu5.34Fe2.03at%と混合して、前記古いNdリッチな粒界相を、新たなNd11.92Dy42.32Co38.39Cu5.34Fe2.03at%粒界相と置き換え得る。該粉末と該Nd11.92Dy42.32Co38.39Cu5.34Fe2.03at%との混合は、該Nd−Fe−B粉末の全体にわたり新たなNd11.92Dy42.32Co38.39Cu5.34Fe2.03at%粒界相を均質化し得る一方で、該古いNdリッチな粒界相は、例えば、篩分け、空気吹き付け、振動、形状分離、密度勾配分離、ツインシリンダー重力分離、又はこれらのうちの2つ以上の組合せにより除去される。
いくつかの実施において、システムが、粒界工学をスクラップ材料に対し実施する場合、該スクラップ材料は、粒界、Nd2Fe14B1マトリックス相、又は双方中に、大量のDyを含有していてもよい。該大量のDyは、該スクラップ材料から作られる最終磁性製品の磁気性能の低下の一因となり得る。スクラップ材料から作られる最終磁性製品における残留磁気(Br)を増加させるために、システムは、DyをFeで置き換えることにより、該スクラップ材料から該Dyを除去してもよく、例えば、システムは、Feを該スクラップ材料中にポンプで送り込むことにより、該スクラップ材料からDyを押し出してもよい。システムは、該スクラップ材料と混合される添加物材料中のFeを使用して、例えば、混合プロセスの間に該スクラップ材料からDyを除去してもよい。
Claims (30)
- Nd−Fe−B永久磁石を製造する方法であって、
磁性元素を溶融させて、溶融合金を作製すること;
該溶融合金から、複数の2:14:1相粒を含む鋳造合金薄片を形成させること、
該鋳造合金薄片由来の該2:14:1相粒のうちの少なくとも一部を維持しつつ、該鋳造合金薄片を粉砕して、第1の粉末を形成させること;
該第1の粉末中の粒子をプレスし、かつ整列させて、第1の成形体を作製すること;
該第1の成形体を焼結して、焼結成形体を作製すること;
該焼結成形体由来の該2:14:1相粒のうちの少なくとも一部を維持しつつ、該焼結成形体を断片化して、第2の粉末を形成させること;
該第2の粉末由来の該2:14:1相粒のうちの少なくとも一部を維持しつつ、該第2の粉末を:a) i)Nd、ii)Pr、又はiii)Dyのうちの少なくとも1つを含む希土類材料R、及びb) i)Co、ii)Cu、又はiii)Feのうちの少なくとも1つを含む元素添加物Aと混合して、均質な粉末を生成させること;及び
該均質な粉末を焼結及び磁化して、Nd−Fe−B磁性製品を形成させることを含む、前記方法。 - 前記溶融合金から、前記複数の2:14:1相粒を含む前記鋳造合金薄片を形成させることが、該溶融合金から、それぞれが複数の2:14:1相粒を含む鋳造合金薄片を形成させることを含む、請求項1記載の方法。
- 前記希土類材料R及び前記元素添加物Aが、全体として、Nd11.92Dy42.32Co38.39Cu5.34Fe2.03at%を含む、請求項1記載の方法。
- 前記焼結成形体を断片化することが、1〜4ミクロンの平均粒子サイズまで該焼結成形体を断片化することを含む、請求項1記載の方法。
- 前記焼結成形体を断片化して、前記第2の粉末を形成させることが、該第2の粉末から、該第2の粉末における粒子の平均サイズよりも大きい粒子画分サイズを有する粒子を除去して、1.98at%未満の酸素濃度を前記Nd−Fe−B磁性製品中に得ることを含む、請求項1記載の方法。
- 前記焼結成形体を断片化して、前記第2の粉末を形成させることが、該焼結成形体を断片化して、約1ミクロン〜約2ミリメートルの平均粒子サイズを有する該第2の粉末を形成させることを含む、請求項1記載の方法であって、該方法が:
約1〜約4ミクロンの平均粒子サイズまで、該第2の粉末をさらに断片化すること;及び
該第2の粉末を均質化すること、
を含む、前記方法。 - 前記第2の粉末を均質化することが、約1ミクロン〜約2ミリメートルの平均粒子サイズを含む該第2の粉末を均質化することを含み;かつ
該第2の粉末を、a)前記希土類材料R及びb)前記元素添加物Aと混合して、前記均質な粉末を生成させることが、約1〜約4ミクロンの平均粒子サイズを有する該第2の粉末を、a)該希土類材料R及びb)該元素添加物Aと混合して、該均質な粉末を生成させることを含む、請求項6記載の方法。 - 前記第2の粉末を、a)前記希土類材料R及びb)前記元素添加物Aと混合して、前記均質な粉末を生成させることが、約1ミクロン〜約2ミリメートルの平均粒子サイズを有する該第2の粉末を、a)該希土類材料R及びb)該元素添加物Aと混合して、該均質な粉末を生成させることを含み;かつ
該第2の粉末を均質化することが、約1〜約4ミクロンの平均粒子サイズを含む該第2の粉末を均質化することを含む、請求項6記載の方法。 - 前記焼結成形体を断片化して、前記第2の粉末を形成させることとは別に、前記希土類材料R及び前記元素添加物Aを断片化することを含み、
該第2の粉末を、a)該希土類材料R及びb)該元素添加物Aと混合して、前記均質な粉末を生成させることが、該第2の粉末を、a)該断片化された希土類材料R及びb)該断片化された元素添加物Aと混合して、該均質な粉末を生成させることを含む、請求項1記載の方法。 - 前記Nd−Fe−B磁性製品中のCoの原子百分率が、3.098at%以下である、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品中のCuの原子百分率が、0.1849at%以下である、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品中のFe及びCoを合わせた原子百分率が、約76.3928〜約83.1267at%である、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品中のFe及びCoを合わせた原子百分率が、77at%以下である、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品中のNd、Pr、及びDyを合わせた原子百分率が、前記焼結成形体中のNd、Pr、及びDyを合わせた原子百分率以上である、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品中のNd、Dy、及びPrを合わせた原子百分率が、18at%以下である、請求項1記載の方法。
- 前記第2の粉末を、a)前記希土類材料R及びb)前記元素添加物Aと混合して、前記均質な粉末を生成させることが、該第2の粉末中に、該希土類材料R及び該元素添加物Aを均一に分布させることを含み;かつ
該均質な粉末を焼結及び磁化して、前記Nd−Fe−B磁性製品を形成させることが、平均して、該Nd−Fe−B磁性製品中の前記2:14:1相粒を包囲して増加する前記希土類材料Rの濃度及び前記元素添加物Aの濃度を有する該Nd−Fe−B磁性製品を形成させることを含む、請求項1記載の方法。 - 前記焼結成形体由来かつ前記第2の粉末に含まれる古いNdリッチな粒界相を、前記希土類材料R及び前記元素添加物Aを含む新たな粒界相で置き換えることを含む、請求項16記載の方法。
- 前記Nd−Fe−B磁性製品が:
[7.3635,11.1038](at%,両端の値を含む)の範囲の量のNd;
[76.3928,80.0287](at%,両端の値を含む)の範囲の量のFe;及び
[5.7493,6.4244](at%,両端の値を含む)の範囲の量のB、
を含む、請求項1記載の方法。 - 前記Nd−Fe−B磁性製品が:
[0.09,4.0](at%,両端の値を含む)の範囲の量のO;及び
[0.01,1.0](at%,両端の値を含む)の範囲の量のC、
を含む、請求項18記載の方法。 - 前記Nd−Fe−B磁性製品が:[0.199,4.0535](at%,両端の値を含む)の範囲の量のDyを含む、請求項18記載の方法。
- 前記Nd−Fe−B磁性製品が:[1.445,3.6323](at%,両端の値を含む)の範囲の量のPrを含む、請求項18記載の方法。
- 前記Nd−Fe−B磁性製品が:[0,3.098](at%,両端の値を含む)の範囲の量のCoを含む、請求項18記載の方法。
- 前記Nd−Fe−B磁性製品が:[0.0508,0.1849](at%,両端の値を含む)の範囲の量のCuを含む、請求項18記載の方法。
- 前記Nd−Fe−B磁性製品中の前記希土類材料Rの総量が、[12.66,15.03](at%,両端の値を含む)の範囲にある、請求項18記載の方法。
- 前記希土類材料Rが:
i)前記希土類材料Rと前記元素添加物材料Aとの組合せに関して[6.1717,11.8917](at%,両端の値を含む)の範囲の量のNd、
ii)該希土類材料Rと該元素添加物材料Aとの組合せに関して[1.5495,4.821](at%,両端の値を含む)の範囲の量のPr、又は
iii)該希土類材料Rと該元素添加物材料Aとの組合せに関して[0.2132,5.3753](at%,両端の値を含む)の範囲の量のDy、
のうちの少なくとも1つを含み、かつ
該元素添加物Aが:
i)該希土類材料Rと該元素添加物材料Aとの組合せに関して[0,4.0948](at%,両端の値を含む)の範囲の量のCo、
ii)該希土類材料Rと該元素添加物材料Aとの組合せに関して[0.0545,0.2445](at%,両端の値を含む)の範囲の量のCu、又は
iii)該希土類材料Rと該元素添加物材料Aとの組合せに関して[81.1749,85.867](at%,両端の値を含む)の範囲の量のFe、
のうちの少なくとも1つを含む、請求項1記載の方法。 - 前記均質な粉末を焼結及び磁化して、Nd−Fe−B磁性製品を形成させることが、該均質な粉末を焼結及び磁化して、残留磁気及び保磁力が前記焼結成形体と少なくとも等しい該Nd−Fe−B磁性製品を形成させることを含む、請求項1記載の方法。
- 前記Nd−Fe−B磁性製品の前記保磁力が、前記焼結成形体の保磁力よりも約0〜約20%大きい、請求項26記載の方法。
- 前記均質な粉末を焼結及び磁化して、Nd−Fe−B磁性製品を形成させることが、該均質な粉末を焼結及び磁化して、前記焼結成形体の別の残留磁気の約97%である最終残留磁気、及び該焼結成形体の別の保磁力よりも少なくとも30%大きい最終保磁力を有する該Nd−Fe−B磁性製品を形成させることを含む、請求項1記載の方法。
- 前記均質な粉末を焼結及び磁化して、Nd−Fe−B磁性製品を形成させることが、該均質な粉末を焼結及び磁化して、前記焼結成形体の別の残留磁気の約95%である最終残留磁気、及び該焼結成形体の別の保磁力よりも少なくとも80%大きい最終保磁力を有する該Nd−Fe−B磁性製品を形成させることを含む、請求項1記載の方法。
- 前記均質な粉末を焼結及び磁化して、Nd−Fe−B磁性製品を形成させることが、該均質な粉末を焼結及び磁化して、焼結成形体の別の残留磁気よりも約5%大きい最終残留磁気、及び該焼結成形体の別の保磁力と少なくとも等しい最終保磁力を有する該Nd−Fe−B磁性製品を形成させることを含む、請求項1記載の方法。
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US10926333B2 (en) | 2016-08-17 | 2021-02-23 | Urban Mining Technology Company, Inc. | Caster assembly |
KR102093491B1 (ko) * | 2017-11-28 | 2020-03-25 | 주식회사 엘지화학 | 소결 자석의 제조 방법 및 소결 자석 |
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CN110957125B (zh) * | 2019-12-24 | 2021-11-05 | 厦门钨业股份有限公司 | 一种钕铁硼永磁材料的烧结方法、钕铁硼永磁材料 |
TWI769121B (zh) * | 2022-01-10 | 2022-06-21 | 磁河智慧財產顧問有限公司 | 廢磁石再生方法 |
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TWI834263B (zh) * | 2022-08-25 | 2024-03-01 | 磁河智慧財產顧問有限公司 | 降低碳氧含量的再生磁石及廢磁石回收的再生方法 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000012771A1 (fr) * | 1998-08-28 | 2000-03-09 | Showa Denko K.K. | Alliage pour l'elaboration d'un aimant fritte de base r-t-b et procede correspondant |
JP2012216807A (ja) * | 2011-03-29 | 2012-11-08 | Hitachi Metals Ltd | R−t−b系永久磁石の製造方法 |
WO2012161355A1 (ja) * | 2011-05-25 | 2012-11-29 | Tdk株式会社 | 希土類焼結磁石、希土類焼結磁石の製造方法及び回転機 |
JP2014099594A (ja) * | 2012-10-17 | 2014-05-29 | Shin Etsu Chem Co Ltd | 希土類焼結磁石の製造方法及び希土類焼結磁石 |
Family Cites Families (162)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2105403A (en) * | 1936-11-30 | 1938-01-11 | Francis W Buckle | Poultry feeder and waterer |
US3802935A (en) | 1972-05-25 | 1974-04-09 | Geeral Electric Co | Demagnetization of cobalt-rare earth magnets |
DE2347108C3 (de) | 1973-09-19 | 1980-02-14 | Vereinigte Aluminium-Werke Ag, 5300 Bonn | Verfahren zur Trennung von Metall und Kunststoff |
GB1554384A (en) | 1977-04-15 | 1979-10-17 | Magnetic Polymers Ltd | Rare earth metal alloy magnets |
IT1119221B (it) | 1979-10-16 | 1986-03-03 | Marco Ginatta | Metodo e macchina per il recupero di materiale da batterie di accumulatori esausti |
US4792368A (en) | 1982-08-21 | 1988-12-20 | Sumitomo Special Metals Co., Ltd. | Magnetic materials and permanent magnets |
US5194098A (en) | 1982-08-21 | 1993-03-16 | Sumitomo Special Metals Co., Ltd. | Magnetic materials |
US5183516A (en) | 1982-08-21 | 1993-02-02 | Sumitomo Special Metals Co., Ltd. | Magnetic materials and permanent magnets |
US5466308A (en) | 1982-08-21 | 1995-11-14 | Sumitomo Special Metals Co. Ltd. | Magnetic precursor materials for making permanent magnets |
CA1316375C (en) | 1982-08-21 | 1993-04-20 | Masato Sagawa | Magnetic materials and permanent magnets |
US5192372A (en) | 1983-05-06 | 1993-03-09 | Sumitomo Special Metals Co., Ltd. | Process for producing isotropic permanent magnets and materials |
US4597938A (en) | 1983-05-21 | 1986-07-01 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet materials |
US4601875A (en) | 1983-05-25 | 1986-07-22 | Sumitomo Special Metals Co., Ltd. | Process for producing magnetic materials |
JPS6034005A (ja) | 1983-08-04 | 1985-02-21 | Sumitomo Special Metals Co Ltd | 永久磁石 |
US5230749A (en) | 1983-08-04 | 1993-07-27 | Sumitomo Special Metals Co., Ltd. | Permanent magnets |
DE3587977T2 (de) | 1984-02-28 | 1995-05-18 | Sumitomo Spec Metals | Dauermagnete. |
US4585473A (en) | 1984-04-09 | 1986-04-29 | Crucible Materials Corporation | Method for making rare-earth element containing permanent magnets |
US5538565A (en) | 1985-08-13 | 1996-07-23 | Seiko Epson Corporation | Rare earth cast alloy permanent magnets and methods of preparation |
US5225004A (en) | 1985-08-15 | 1993-07-06 | Massachusetts Institute Of Technology | Bulk rapidly solifidied magnetic materials |
JPS62260039A (ja) * | 1986-01-10 | 1987-11-12 | Nippon Steel Corp | 残留磁化を高めた永久磁性合金とそのバルク状磁性体 |
US4881986A (en) | 1986-11-26 | 1989-11-21 | Tokin Corporation | Method for producing a rare earth metal-iron-boron anisotropic sintered magnet from rapidly-quenched rare earth metal-iron-boron alloy ribbon-like flakes |
JPH01103805A (ja) | 1987-07-30 | 1989-04-20 | Tdk Corp | 永久磁石 |
EP0304054B1 (en) | 1987-08-19 | 1994-06-08 | Mitsubishi Materials Corporation | Rare earth-iron-boron magnet powder and process of producing same |
JP2741508B2 (ja) | 1988-02-29 | 1998-04-22 | 住友特殊金属株式会社 | 磁気異方性焼結磁石とその製造方法 |
JPH01261806A (ja) * | 1988-04-13 | 1989-10-18 | Daido Steel Co Ltd | 希土類磁石とその製造方法 |
US5000800A (en) | 1988-06-03 | 1991-03-19 | Masato Sagawa | Permanent magnet and method for producing the same |
US5049053A (en) | 1988-08-18 | 1991-09-17 | Hitachi Metals, Ltd. | Metal mold for molding anisotropic permanent magnets |
DE69009335T2 (de) | 1989-07-31 | 1994-11-03 | Mitsubishi Materials Corp | Seltenerdpulver für Dauermagnet, Herstellungsverfahren und Verbundmagnet. |
JP2596835B2 (ja) | 1989-08-04 | 1997-04-02 | 新日本製鐵株式会社 | 希土類系異方性粉末および希土類系異方性磁石 |
US4900374A (en) | 1989-08-24 | 1990-02-13 | General Motors Corporation | Demagnetization of iron-neodymium-boron type permanent magnets without loss of coercivity |
CA2031127C (en) | 1989-12-01 | 1999-01-19 | Satoshi Hirosawa | Permanent magnet |
US5143560A (en) | 1990-04-20 | 1992-09-01 | Hitachi Metals, Inc., Ltd. | Method for forming Fe-B-R-T alloy powder by hydrogen decrepitation of die-upset billets |
US5242508A (en) | 1990-10-09 | 1993-09-07 | Iowa State University Research Foundation, Inc. | Method of making permanent magnets |
JPH04337604A (ja) | 1991-05-14 | 1992-11-25 | Seiko Instr Inc | 希土類鉄系永久磁石 |
JP3502107B2 (ja) | 1991-08-29 | 2004-03-02 | Tdk株式会社 | 永久磁石材料の製造方法 |
US5354040A (en) | 1991-11-28 | 1994-10-11 | Mitsubishi Materials Corporation | Apparatus for closed cycle hydrogenation recovery and rehydrogenation |
JPH05163510A (ja) | 1991-12-10 | 1993-06-29 | Mitsubishi Materials Corp | 希土類磁石合金粉末の製造法 |
JP2782024B2 (ja) | 1992-01-29 | 1998-07-30 | 住友特殊金属株式会社 | R−Fe−B系永久磁石用原料粉末の製造方法 |
JP3932143B2 (ja) | 1992-02-21 | 2007-06-20 | Tdk株式会社 | 磁石の製造方法 |
US5387291A (en) | 1992-03-19 | 1995-02-07 | Sumitomo Special Metals Co., Ltd. | Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor |
CH684225A5 (de) | 1992-09-02 | 1994-07-29 | Inter Recycling Ag | Verfahren zum Entsorgen von Nickel-Cadmium- oder Nickel-Hydrid-Zellen. |
JPH06151132A (ja) | 1992-10-29 | 1994-05-31 | Mitsubishi Materials Corp | 異方性磁石材料粉末の製造方法およびその製造方法により得られた異方性磁石材料粉末を用いた磁石の製造方法 |
US5472525A (en) | 1993-01-29 | 1995-12-05 | Hitachi Metals, Ltd. | Nd-Fe-B system permanent magnet |
JP2746818B2 (ja) * | 1993-06-02 | 1998-05-06 | 信越化学工業株式会社 | 希土類焼結永久磁石の製造方法 |
US5788782A (en) | 1993-10-14 | 1998-08-04 | Sumitomo Special Metals Co., Ltd. | R-FE-B permanent magnet materials and process of producing the same |
KR100187611B1 (ko) | 1993-12-28 | 1999-06-01 | 오카모토 유지 | 희토류.철계 소결영구자석의 제조방법 및 성형재료 |
US5454998A (en) | 1994-02-04 | 1995-10-03 | Ybm Technologies, Inc. | Method for producing permanent magnet |
US5437709A (en) | 1994-07-26 | 1995-08-01 | Iowa State University Research Foundation, Inc. | Recycling of rare earth metals from rare earth-transition metal alloy scrap by liquid metal extraction |
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 |
US5851312A (en) | 1996-02-26 | 1998-12-22 | Aichi Steel Works, Ltd. | Production method, production apparatus and heat treatment apparatus for anisotropic magnet powder |
US6159308A (en) | 1997-12-12 | 2000-12-12 | Hitachi Metals, Ltd. | Rare earth permanent magnet and production method thereof |
JP3120172B2 (ja) | 1997-12-22 | 2000-12-25 | 愛知製鋼株式会社 | 希土類系磁石粉末の製造装置 |
US6511552B1 (en) | 1998-03-23 | 2003-01-28 | Sumitomo Special Metals Co., Ltd. | Permanent magnets and R-TM-B based permanent magnets |
JPH11329811A (ja) | 1998-05-18 | 1999-11-30 | Sumitomo Special Metals Co Ltd | R−Fe−B系磁石用原料粉末並びにR−Fe−B系磁石の製造方法 |
DE19843883C1 (de) | 1998-09-24 | 1999-10-07 | Vacuumschmelze Gmbh | Verfahren zur Wiederverwendung von Dauermagneten |
US6247660B1 (en) | 1998-10-07 | 2001-06-19 | Sumitomo Special Metals Co., Ltd. | Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing case |
DE69911138T2 (de) | 1998-10-14 | 2004-07-22 | Hitachi Metals, Ltd. | Gesinterter R-T-B-Dauermagnet |
US6537345B1 (en) | 1998-11-04 | 2003-03-25 | Matsushita Electric Industrial Co., Ltd. | Method for decomposition and treatment of bond magnet |
JP2000223306A (ja) | 1998-11-25 | 2000-08-11 | Hitachi Metals Ltd | 角形比を向上したr―t―b系希土類焼結磁石およびその製造方法 |
JP3278647B2 (ja) | 1999-01-27 | 2002-04-30 | 住友特殊金属株式会社 | 希土類系ボンド磁石 |
US6403024B1 (en) | 1999-02-19 | 2002-06-11 | Sumitomo Special Metals Co., Ltd. | Hydrogen pulverizer for rare-earth alloy magnetic material powder using the pulverizer, and method for producing magnet using the pulverizer |
US6474576B1 (en) | 1999-03-10 | 2002-11-05 | Sumitomo Special Metals Co., Ltd. | Milling apparatus and milling method |
MY126790A (en) | 1999-09-16 | 2006-10-31 | Neomax Co Ltd | Method and apparatus for grinding magnetic member and method and apparatus for treating waste fluid |
JP4265047B2 (ja) | 1999-10-04 | 2009-05-20 | パナソニック株式会社 | 希土類ボンド磁石からの磁性粉回収・再利用方法 |
US6444052B1 (en) | 1999-10-13 | 2002-09-03 | Aichi Steel Corporation | Production method of anisotropic rare earth magnet powder |
US6432158B1 (en) | 1999-10-25 | 2002-08-13 | Sumitomo Special Metals Co., Ltd. | Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet |
CN1136062C (zh) | 1999-10-26 | 2004-01-28 | 松下电器产业株式会社 | 制备粘合磁石的回收原料粉末及回收利用粘合磁石的方法 |
JP3233359B2 (ja) | 2000-03-08 | 2001-11-26 | 住友特殊金属株式会社 | 希土類合金磁性粉末成形体の作製方法および希土類磁石の製造方法 |
MY128139A (en) | 2000-03-31 | 2007-01-31 | Neomax Co Ltd | Blasting apparatus |
JP3231034B1 (ja) | 2000-05-09 | 2001-11-19 | 住友特殊金属株式会社 | 希土類磁石およびその製造方法 |
JP2001319821A (ja) | 2000-05-10 | 2001-11-16 | Sumitomo Special Metals Co Ltd | 鉄基合金磁石の製造方法および製造装置 |
JP3172521B1 (ja) | 2000-06-29 | 2001-06-04 | 住友特殊金属株式会社 | 希土類磁石の製造方法および粉体プレス装置 |
US6527874B2 (en) | 2000-07-10 | 2003-03-04 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for making same |
WO2002013209A2 (en) | 2000-08-03 | 2002-02-14 | Sanei Kasei Co., Limited | Nanocomposite permanent magnet |
US6635120B2 (en) | 2000-09-14 | 2003-10-21 | Hitachi Metals, Ltd. | Method for producing sintered rare earth magnet and sintered ring magnet |
US6818041B2 (en) * | 2000-09-18 | 2004-11-16 | Neomax Co., Ltd | Magnetic alloy powder for permanent magnet and method for producing the same |
JP3294841B2 (ja) | 2000-09-19 | 2002-06-24 | 住友特殊金属株式会社 | 希土類磁石およびその製造方法 |
US6648984B2 (en) | 2000-09-28 | 2003-11-18 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for manufacturing the same |
KR100771676B1 (ko) | 2000-10-04 | 2007-10-31 | 가부시키가이샤 네오맥스 | 희토류 소결자석 및 그 제조방법 |
US7004228B2 (en) | 2000-10-06 | 2006-02-28 | Santoku Corporation | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
JP4134721B2 (ja) | 2000-11-06 | 2008-08-20 | 日立金属株式会社 | 粉末プレス成形方法および粉末プレス成形装置ならびに希土類磁石の製造方法 |
US6676773B2 (en) | 2000-11-08 | 2004-01-13 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for producing the magnet |
EP1365422B1 (en) | 2001-01-30 | 2012-04-25 | Hitachi Metals, Ltd. | Method for preparation of permanent magnet |
US6695929B2 (en) | 2001-02-07 | 2004-02-24 | Sumitomo Special Co., Ltd. | Method of making material alloy for iron-based rare earth magnet |
DE10291720T5 (de) | 2001-05-30 | 2004-08-05 | Sumitomo Special Metals Co., Ltd. | Verfahren zur Herstellung eines gesinterten Presslings für einen Seltenerdmetall-Magneten |
CN100414650C (zh) | 2001-06-22 | 2008-08-27 | 日立金属株式会社 | 稀土类磁体及其制造方法 |
DE10291914B3 (de) | 2001-06-29 | 2013-03-28 | Hitachi Metals, Ltd. | Vorrichtung, um eine Seltenerdmetall-Legierung einem Hydrierungsverfahren zu unterziehen |
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 |
KR100853089B1 (ko) | 2001-07-10 | 2008-08-19 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 희토류 자석 스크랩 및/또는 슬러지의 재용해 방법 및자석용 합금 및 희토류 소결 자석 |
AU2002319913A1 (en) | 2001-07-31 | 2003-02-17 | Sumitomo Special Metals Co., Ltd. | Method for manufacturing sintered magnet |
JP4055709B2 (ja) | 2001-07-31 | 2008-03-05 | 日立金属株式会社 | アトマイズ法によるナノコンポジット磁石の製造方法 |
KR100518067B1 (ko) | 2001-10-31 | 2005-09-28 | 가부시키가이샤 네오맥스 | 영구자석의 제조방법 및 프레스 장치 |
JP4069727B2 (ja) * | 2001-11-20 | 2008-04-02 | 日立金属株式会社 | 希土類系ボンド磁石用コンパウンドおよびそれを用いたボンド磁石 |
JP2005302745A (ja) | 2001-12-27 | 2005-10-27 | Osaka Industrial Promotion Organization | 希土類ボンド磁石粉末の製造方法及びそれを用いたボンド磁石の製造方法 |
JP4389427B2 (ja) | 2002-02-05 | 2009-12-24 | 日立金属株式会社 | 希土類−鉄−硼素系磁石用合金粉末を用いた焼結磁石 |
AU2003236275A1 (en) | 2002-04-12 | 2003-10-27 | Sumitomo Special Metals Co., Ltd. | Method for press molding rare earth alloy powder and method for producing sintered object of rare earth alloy |
US7186303B2 (en) | 2002-08-21 | 2007-03-06 | Neomax Co., Ltd. | Magnetic alloy material and method of making the magnetic alloy material |
DE10255604B4 (de) | 2002-11-28 | 2006-06-14 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zum Herstellen eines anisotropen Magnetpulvers und eines gebundenen anisotropen Magneten daraus |
CN1333410C (zh) | 2003-01-16 | 2007-08-22 | 爱知制钢株式会社 | 各向异性磁铁粉末的制造方法 |
EP1562203A4 (en) | 2003-03-12 | 2009-08-05 | Hitachi Metals Ltd | R-T-B SINTERED MAGNET AND PROCESS FOR ITS MANUFACTURE |
JP2004296973A (ja) | 2003-03-28 | 2004-10-21 | Kenichi Machida | 金属蒸気収着による高性能希土類磁石の製造 |
JP4449900B2 (ja) | 2003-04-22 | 2010-04-14 | 日立金属株式会社 | 希土類合金粉末の製造方法および希土類焼結磁石の製造方法 |
JP4643137B2 (ja) | 2003-05-19 | 2011-03-02 | 株式会社三徳 | 電波吸収用磁性体粉末の製造方法、電波吸収用磁性体粉末及びそれを用いた電波吸収体 |
JP2005011973A (ja) | 2003-06-18 | 2005-01-13 | Japan Science & Technology Agency | 希土類−鉄−ホウ素系磁石及びその製造方法 |
US7618497B2 (en) * | 2003-06-30 | 2009-11-17 | Tdk Corporation | R-T-B based rare earth permanent magnet and method for production thereof |
JP4605013B2 (ja) | 2003-08-12 | 2011-01-05 | 日立金属株式会社 | R−t−b系焼結磁石および希土類合金 |
KR100516512B1 (ko) | 2003-10-15 | 2005-09-26 | 자화전자 주식회사 | 본드자석용 마이크로 결정구조의 고보자력 자석분말제조방법 및 이에 의해 제조된 자석분말 |
WO2005105343A1 (ja) | 2004-04-30 | 2005-11-10 | Neomax Co., Ltd. | 希土類磁石用原料合金および粉末ならびに焼結磁石の製造方法 |
JP4260087B2 (ja) | 2004-09-27 | 2009-04-30 | 日立金属株式会社 | 希土類焼結磁石及びその製造方法 |
EP1826782B1 (en) | 2004-12-16 | 2016-03-02 | Hitachi Metals, Ltd. | Iron base rare earth nano-composite magnet and method for production thereof |
US8123832B2 (en) | 2005-03-14 | 2012-02-28 | Tdk Corporation | R-T-B system sintered magnet |
JP4556727B2 (ja) * | 2005-03-23 | 2010-10-06 | Tdk株式会社 | 希土類焼結磁石の製造方法 |
US7578892B2 (en) | 2005-03-31 | 2009-08-25 | Hitachi Metals, Ltd. | Magnetic alloy material and method of making the magnetic alloy material |
JP4420860B2 (ja) | 2005-06-09 | 2010-02-24 | 花王株式会社 | 吸収性物品の製造方法 |
US20070089806A1 (en) | 2005-10-21 | 2007-04-26 | Rolf Blank | Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same |
CN101026034B (zh) | 2006-02-22 | 2010-05-12 | 南京理工大学 | 一种耐腐蚀稀土永磁材料的制备方法 |
JP2007287865A (ja) | 2006-04-14 | 2007-11-01 | Shin Etsu Chem Co Ltd | 永久磁石材料の製造方法 |
JP4656323B2 (ja) * | 2006-04-14 | 2011-03-23 | 信越化学工業株式会社 | 希土類永久磁石材料の製造方法 |
US7955443B2 (en) | 2006-04-14 | 2011-06-07 | Shin-Etsu Chemical Co., Ltd. | Method for preparing rare earth permanent magnet material |
JP4753030B2 (ja) | 2006-04-14 | 2011-08-17 | 信越化学工業株式会社 | 希土類永久磁石材料の製造方法 |
CN101379574B (zh) | 2006-11-30 | 2012-05-23 | 日立金属株式会社 | R-Fe-B系微晶高密度磁铁及其制造方法 |
CN101246771B (zh) | 2007-02-12 | 2010-05-19 | 天津天和磁材技术有限公司 | 一种高性能钕铁硼永磁材料的制造方法 |
WO2008120784A1 (ja) | 2007-03-30 | 2008-10-09 | Tdk Corporation | 磁石の製造方法 |
EP2034493B1 (en) | 2007-05-02 | 2012-12-05 | Hitachi Metals, Ltd. | R-t-b sintered magnet |
WO2008139556A1 (ja) | 2007-05-02 | 2008-11-20 | Hitachi Metals, Ltd. | R-t-b系焼結磁石 |
JP2008282832A (ja) * | 2007-05-08 | 2008-11-20 | Hitachi Ltd | 希土類磁石 |
CN101051544A (zh) | 2007-05-10 | 2007-10-10 | 浙江大学 | 高性能烧结钕铁硼气流磨加氢制备方法 |
JP4645854B2 (ja) * | 2007-08-24 | 2011-03-09 | 信越化学工業株式会社 | 希土類永久磁石の製造方法 |
CN101266855B (zh) | 2007-12-29 | 2012-05-23 | 横店集团东磁股份有限公司 | 稀土永磁材料及其制造方法 |
RU2446497C1 (ru) | 2008-02-20 | 2012-03-27 | Улвак, Инк. | Способ переработки отходов магнитов |
JP5477282B2 (ja) | 2008-03-31 | 2014-04-23 | 日立金属株式会社 | R−t−b系焼結磁石およびその製造方法 |
US8105151B2 (en) * | 2008-07-02 | 2012-01-31 | Igt | Gaming system, gaming device and method for providing cascading symbols with wild features |
CN101429030A (zh) | 2008-12-08 | 2009-05-13 | 中国计量学院 | 一种用抗氧化有机助剂烧结钕铁硼磁体的方法 |
CN102282279B (zh) | 2009-01-16 | 2013-10-02 | 日立金属株式会社 | R-t-b系烧结磁铁的制造方法 |
JP4835758B2 (ja) | 2009-03-30 | 2011-12-14 | Tdk株式会社 | 希土類磁石の製造方法 |
CN101853723B (zh) * | 2009-03-31 | 2012-11-21 | 比亚迪股份有限公司 | 一种复合磁性材料及其制备方法 |
CN102379013B (zh) | 2009-03-31 | 2014-12-17 | 日立金属株式会社 | 纳米复合材料块材磁体及其制造方法 |
CN101615459B (zh) * | 2009-04-28 | 2011-11-23 | 中国科学院宁波材料技术与工程研究所 | 提高烧结钕铁硼永磁材料性能的方法 |
KR101166662B1 (ko) | 2009-07-31 | 2012-07-18 | 히타치 긴조쿠 가부시키가이샤 | 희토류계 자석용 원료 합금의 수소 분쇄가루의 회수방법 및 회수장치 |
CA2715455C (en) | 2009-09-25 | 2015-04-28 | Johnsen Machine Company Ltd. | Palletizing system and method |
US9358614B2 (en) | 2010-03-31 | 2016-06-07 | Hitachi Metals, Ltd. | Slurry recycling method, producing method of rare earth sintered magnet and slurry recycling apparatus |
CN101877265A (zh) | 2010-04-28 | 2010-11-03 | 天津天和磁材技术有限公司 | 一种高性能钕铁硼永磁材料的制造方法 |
US9862030B2 (en) * | 2010-07-02 | 2018-01-09 | Santoku Corporation | Method for producing alloy cast slab for rare earth sintered magnet |
KR101219515B1 (ko) | 2010-07-02 | 2013-01-11 | 한국기계연구원 | 본드자석용 R―Fe―B계 희토류 자성분말의 제조방법, 이에 의해 제조된 자성분말 및 상기 자성분말을 이용한 본드자석의 제조방법, 이에 의해 제조된 본드자석 |
JP5303738B2 (ja) * | 2010-07-27 | 2013-10-02 | Tdk株式会社 | 希土類焼結磁石 |
JP2013145769A (ja) | 2010-08-04 | 2013-07-25 | Kri Inc | 異方性希土類ボンド磁石とその製造方法 |
JP4951703B2 (ja) | 2010-09-30 | 2012-06-13 | 昭和電工株式会社 | R−t−b系希土類永久磁石用合金材料、r−t−b系希土類永久磁石の製造方法およびモーター |
CN102453804B (zh) | 2010-10-20 | 2015-11-25 | 宁波科宁达工业有限公司 | 一种废旧镀镍稀土-铁-硼系永磁材料的再生利用方法 |
GB2486175A (en) | 2010-12-02 | 2012-06-13 | Univ Birmingham | Separating rare earth magnetic materials from electronic devices |
US9663843B2 (en) | 2010-12-02 | 2017-05-30 | The University Of Birmingham | Magnet recycling |
US20120138539A1 (en) | 2010-12-03 | 2012-06-07 | John Cogliandro | Method and Apparatus For Extraction of Hydrocarbons From a Body of Water Using Recovery Particle Binding |
GB201101201D0 (en) | 2011-01-24 | 2011-03-09 | Univ Birmingham | Magnet recovery method |
CN102211192B (zh) | 2011-06-09 | 2012-12-26 | 天津一阳磁性材料有限责任公司 | 二次回收料制备高性能钕铁硼的方法 |
CN103650079B (zh) * | 2011-06-30 | 2017-11-28 | 日立金属株式会社 | 制造除去了碳的R‑Fe‑B系永久磁石合金再生材料的方法 |
CN102557608A (zh) * | 2012-02-16 | 2012-07-11 | 无锡市万邦机械制造厂 | 一种电动机用烧结铁氧体磁体的制备方法 |
CN103295759A (zh) * | 2012-02-29 | 2013-09-11 | 湖南鸿道特磁技术有限公司 | 永磁体的制造方法 |
JP2013225533A (ja) | 2012-03-19 | 2013-10-31 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法 |
US20130320565A1 (en) | 2012-05-31 | 2013-12-05 | Broadcom Corporation | Interposer Die for Semiconductor Packaging |
CN103117143B (zh) | 2013-01-25 | 2016-06-29 | 宁波同创强磁材料有限公司 | 一种用钕铁硼镀镍废料烧结而成的钕铁硼磁体 |
CN103305743B (zh) * | 2013-06-18 | 2015-04-15 | 北京科技大学 | 一种粉末冶金工艺制备纯铁、铁磷软磁合金产品的方法 |
US9336932B1 (en) * | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000012771A1 (fr) * | 1998-08-28 | 2000-03-09 | Showa Denko K.K. | Alliage pour l'elaboration d'un aimant fritte de base r-t-b et procede correspondant |
JP2012216807A (ja) * | 2011-03-29 | 2012-11-08 | Hitachi Metals Ltd | R−t−b系永久磁石の製造方法 |
WO2012161355A1 (ja) * | 2011-05-25 | 2012-11-29 | Tdk株式会社 | 希土類焼結磁石、希土類焼結磁石の製造方法及び回転機 |
JP2014099594A (ja) * | 2012-10-17 | 2014-05-29 | Shin Etsu Chem Co Ltd | 希土類焼結磁石の製造方法及び希土類焼結磁石 |
Non-Patent Citations (1)
Title |
---|
LI, C., ET AL.: ""Waste Nd-Fe-B Sintered Magnet Recycling by Doping With Rare Earth Rich Alloys"", IEEE TRANSACTIONS ON MAGNETICS, vol. 50, no. 12, JPN6019021082, December 2014 (2014-12-01), US, pages 2105403 - 1, ISSN: 0004049281 * |
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