JP6783032B2 - Nd−Fe−B系焼結磁性体の製造に用いる切断装置 - Google Patents
Nd−Fe−B系焼結磁性体の製造に用いる切断装置 Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims description 128
- 239000000696 magnetic material Substances 0.000 title claims description 31
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000000463 material Substances 0.000 claims description 76
- 239000000843 powder Substances 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
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- 239000000047 product Substances 0.000 description 29
- 238000005245 sintering Methods 0.000 description 29
- 230000032683 aging Effects 0.000 description 27
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- 238000000034 method Methods 0.000 description 22
- 238000011282 treatment Methods 0.000 description 21
- 229910052761 rare earth metal Inorganic materials 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000012467 final product Substances 0.000 description 12
- 238000012545 processing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 229910052786 argon Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002173 cutting fluid Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
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- 239000011265 semifinished product Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
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- 238000007254 oxidation reaction Methods 0.000 description 1
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- 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
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- H01F1/047—Alloys characterised by their composition
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- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
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- 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
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- 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
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
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- 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
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- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0556—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together pressed
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- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
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- 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
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
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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
- H01F41/0273—Imparting anisotropy
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- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Description
往復切断機構、切断治具、2次基材固定治具、往復昇降機構を含み、
前記往復切断機構の下部に前記切断治具が連結され、
前記往復昇降機構の上部に前記2次基材固定治具が固定され、
前記2次基材固定治具と前記切断治具は互いに対応し、
前記往復切断機構は水平方向に往復運動し、前記往復昇降機構は垂直方向に往復昇降し、
前記2次基材固定治具はワイヤ溝板、位置制御ガイド板、ガイドピン、調節ボルト、台座を有し、
前記台座の両側には相対する2つの前記ワイヤ溝板が立設され、前記ワイヤ溝板の端部には前記位置制御ガイド板が設けられ、前記位置制御ガイド板には前記ガイドピン及び前記調節ボルトが設けられ、前記切断治具はワイヤ固定板、切断ワイヤ、調節ネジ、固定板で構成され、
前記固定板の両側には相対する2つの前記ワイヤ固定板が連結され、2つの前記ワイヤ固定板の間には前記切断ワイヤが張られ、前記ワイヤ固定板には前記切断ワイヤのテンションを調節する調節ネジが設けられる、
ことを特徴とする。
1.等方圧プレス後の2次基材を配向面、非配向面、プレス面のいずれか一つの面又は二つを基準とし、当該面に沿って切断して仮形状及び仮サイズを得た後に、焼結及び時効処理を行うため、焼結工程で生じる成分及び性能のバラつきを効果的に抑えることができる。
2.2次基材の状態で、一つの面又は二つの面を基準として切断加工すればよく、残りは焼結及び時効処理後に従来と同じ手法で切断加工を行えばよいため、2次基材を最終製品のサイズに切断加工した場合のように表面積が大き過ぎることによって生じる焼結工程における酸化、窒化レベルを軽減することができる。
3.2次基材を切断した後に焼結して得られる3次基材は、切断加工量が減り、切断加工の際の応力による磁気特性の損失を防止でき、磁性体全体の性能を向上することができる。
4.本発明の切断装置を用いて2次基材を切断することにより、密度が小さい2次基材の破損等の問題を解消することができ、且つ切断加工精度は高く、2次基材の切断工程で生じる切削粉末は再利用可能であり、磁性材料の利用率を向上することができる。
製造する最終製品のサイズを10.0mm(非配向面)×6.5mm(配向面)×8.0mm(プレス面)とする。図1〜3に示す切断装置を用い、2次基材の状態で、非配向面を基準として仮サイズに切断加工し、配向面及びプレス面は焼結及び時効処理後の3次基材の状態で切断加工を行った。具体的な製造工程は以下の通りである。
表1:実施例1サンプルの希土類元素含有量及び磁気特性
製造する最終製品のサイズを10.0mm(非配向面)×6.5mm(配向面)×8.0mm(プレス面)とする。本発明に係る切断装置を用い、2次基材の状態で、配向面及び非配向面を基準として、仮形状及び仮サイズへ切断加工した。プレス面については焼結及び時効処理後の3次基材の状態で切断加工を行った。具体的な製造工程は以下の通りである。
表2:実施例2サンプルの希土類元素含有量及び磁気特性
製造する最終製品のサイズを10.0mm(非配向面)×6.5mm(配向面)×8.0mm(プレス面)とする。2次基材の状態では切断加工を行わず、2次基材に焼結及び時効処理を行った後に、上記最終製品サイズに切断した。具体的な製造工程は以下の通りである。
表3:比較例1サンプルの希土類元素含有量及び磁気特性
製造する最終製品のサイズを10.0mm(非配向面)×6.5mm(配向面)×8.0mm(プレス面)とする。本発明に係る切断装置を用い、2次基材の状態で、配向面、非配向面、プレス面について、最終製品に対応した形状及びサイズへ加工した。具体的な工程は以下の通りである。
表4:比較例2サンプルの希土類元素含有量及び磁気特性
2 位置制御ガイド板
3 ガイドピン
4 調節ボルト
5 台座
6 ワイヤ固定板
7 切断ワイヤ
8 調節ネジ
9 固定板
A 切断機構
B 切断治具
C 2次基材固定治具
D 往復昇降機構
Claims (1)
- Nd−Fe−B系合金粉末を配向磁場の条件においてプレスした1次基材を消磁した後、等方圧プレスして得た2次基材の切断に用いる切断装置であって、
往復切断機構、切断治具、2次基材固定治具、往復昇降機構を含み、
前記往復切断機構の下部に前記切断治具が連結され、
前記往復昇降機構の上部に前記2次基材固定治具が固定され、
前記2次基材固定治具と前記切断治具は互いに対応し、
前記往復切断機構は水平方向に往復運動し、前記往復昇降機構は垂直方向に往復昇降し、
前記2次基材固定治具はワイヤ溝板、位置制御ガイド板、ガイドピン、調節ボルト、台座を有し、
前記台座の両側には相対する2つの前記ワイヤ溝板が立設され、前記ワイヤ溝板の端部には前記位置制御ガイド板が設けられ、前記位置制御ガイド板には前記ガイドピン及び前記調節ボルトが設けられ、前記切断治具はワイヤ固定板、切断ワイヤ、調節ネジ、固定板で構成され、
前記固定板の両側には相対する2つの前記ワイヤ固定板が設けられ、2つの前記ワイヤ固定板の間には前記切断ワイヤが張られ、前記ワイヤ固定板には前記切断ワイヤのテンションを調節する調節ネジが設けられる、
ことを特徴とするNd−Fe−B系焼結磁性体の製造に用いる切断装置。
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CN111081444B (zh) * | 2019-12-31 | 2021-11-26 | 厦门钨业股份有限公司 | R-t-b系烧结磁体及其制备方法 |
WO2021193115A1 (ja) * | 2020-03-26 | 2021-09-30 | 日立金属株式会社 | 希土類系焼結磁石の製造方法および湿式成形装置 |
JP7439614B2 (ja) | 2020-03-27 | 2024-02-28 | 株式会社プロテリアル | R-t-b系焼結磁石の製造方法 |
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CN112768170B (zh) * | 2020-12-30 | 2022-11-01 | 烟台正海磁性材料股份有限公司 | 一种稀土永磁体及其制备方法 |
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DE10157433B4 (de) * | 2000-11-24 | 2019-05-29 | Hitachi Metals, Ltd. | Verfahren zum Schneiden einer Seltenerdmetall-Legierung, Verfahren zur Herstellung eines Seltenerdmetall-Magneten und Drahtsäge-Vorrichtung |
JP3713254B2 (ja) * | 2001-07-31 | 2005-11-09 | 株式会社Neomax | 焼結磁石の製造方法 |
DE10296690B4 (de) * | 2001-07-31 | 2008-05-08 | Neomax Co., Ltd. | Verfahren zur Herstellung eines Sintermagneten |
JP4591748B2 (ja) * | 2004-03-29 | 2010-12-01 | Tdk株式会社 | 希土類焼結磁石の製造方法及び製造装置 |
JP4355029B1 (ja) * | 2009-04-24 | 2009-10-28 | Tdk株式会社 | ワーク切断装置およびワーク切断方法 |
US20130043218A1 (en) * | 2011-08-19 | 2013-02-21 | Apple Inc. | Multi-wire cutting for efficient magnet machining |
CN103920879A (zh) * | 2014-02-28 | 2014-07-16 | 深圳市磁研科技有限公司 | 一种稀土磁粉颗粒近净成型加工工艺 |
CN203863024U (zh) * | 2014-02-28 | 2014-10-08 | 深圳市磁研科技有限公司 | 一种稀土永磁材料近净成型加工设备 |
CN105070498B (zh) * | 2015-08-28 | 2016-12-07 | 包头天和磁材技术有限责任公司 | 提高磁体矫顽力的方法 |
CN205466674U (zh) * | 2016-02-03 | 2016-08-17 | 娄底市玖鑫电子科技有限公司 | 一种磁芯母型模具 |
CN105741994B (zh) * | 2016-02-04 | 2017-09-01 | 李忠 | 一种钕铁硼磁体的制作方法 |
CN106373688B (zh) * | 2016-08-31 | 2019-03-29 | 浙江东阳东磁稀土有限公司 | 一种制备稀土永磁材料的方法 |
CN106683866A (zh) * | 2016-12-19 | 2017-05-17 | 江西尚朋电子科技有限公司 | 一种软磁铁氧体偏心磁芯元件的制备方法 |
CN107738346B (zh) * | 2017-10-11 | 2023-09-22 | 许昌五星实业有限责任公司 | 一种自保温砌块用切割丝间距可调的竖切式切割装置 |
CN108053997A (zh) * | 2017-12-22 | 2018-05-18 | 山东恒瑞磁电科技有限公司 | 一种提高铁氧体磁芯磁导率的筛选方法 |
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JP2020027938A (ja) | 2020-02-20 |
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