JP2014236221A - R−Fe−B系焼結磁石の調製方法 - Google Patents
R−Fe−B系焼結磁石の調製方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 229910052796 boron Inorganic materials 0.000 title claims description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 78
- 229910052786 argon Inorganic materials 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 38
- 238000005245 sintering Methods 0.000 claims abstract description 35
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 34
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 238000011282 treatment Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000007751 thermal spraying Methods 0.000 claims description 9
- 229910052779 Neodymium Inorganic materials 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- YNBADRVTZLEFNH-UHFFFAOYSA-N methyl nicotinate Chemical compound COC(=O)C1=CC=CN=C1 YNBADRVTZLEFNH-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- 238000001994 activation Methods 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000005238 degreasing Methods 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 5
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 20
- 238000012545 processing Methods 0.000 abstract description 7
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 abstract description 6
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 description 12
- 230000005389 magnetism Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 3
- 238000005324 grain boundary diffusion Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- 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
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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
- 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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Abstract
【解決手段】本発明はR-Fe-B系焼結磁石の調製方法に関し、先ず、普通の方法で厚さ1〜10mmのR-Fe-B系焼結磁石を調製する。次に、アルゴンガス保護雰囲気の密封箱の中に焼結磁石の表面に厚さ10〜200μmの金属Tb又はDyを熱噴き付けの方法で処理する。。最後に表面にTb又はDyを噴き付けた焼結磁石を真空焼結炉に設置し真空又はアルゴンガスの保護雰囲気で、750〜1000℃で焼結磁石に対して熱処理を行い、重希土元素Tb又はDyが拡散して粒界に沿って焼結磁石の内部に入るようにする。
【選択図】 図1
Description
2:入力端
3:テルビウム又はジスプロシウムワイヤー
4:アルゴンガスコンプレッサー
5:セラミックプレート
6:磁石チップ
7:アルゴンガス制御弁
8:密封箱
9:アルゴンガス入力口
Claims (6)
- 下記の手順を含むことを特徴とするR-Fe-B系焼結磁石の調製方法。
(1)本分野の技術者の公知の方法でR1-Fe-B-M焼結磁石を調製する。その中、R1はNd、Pr、Dy、Tb、Ho、Gdから選出されたいずれか又は複数であり、総量が26wt%〜33wt%であり、MはTi、V、Cr、Mn、Co、Ni、Ga、Ca、Cu、Zn、Si、Al、Mg、Zr、Nb、Hf、Ta、W、Moから選出されたいずれか又は複数、総量が0〜5wt%であり、Bは総量が0.5wt%〜2wt%であり、残ったものはFeである。
(2)ステップ1)で取得した焼結磁石に対して脱脂、酸洗い、活性化及び脱イオン水洗浄処理を行う。
(3)ステップ2)で洗浄された焼結磁石を密封箱に設置して、焼結磁石を循環アルゴンガス保護雰囲気に設置して、噴き付け材料として熱噴き付けで焼結磁石の表面に厚さ10〜200μmの金属Tb又は金属Dyを噴き付ける。
(4)ステップ3)で処理された焼結磁石を真空焼結炉に設置し、750〜1000℃で2〜72hに熱処理を行い真空焼結炉内部の真空度を10-2〜10-5Paに制御し、又は真空焼結炉の内部で5〜20kPaのアルゴンガス保護雰囲気を設置し、金属Tb又は金属Dyが粒界の拡散により焼結磁石の内部に入るようにする。
(5)ステップ4)で処理された焼結磁石を450〜600℃で1〜10hに時効処理を行い、R-Fe-B系の焼結磁石を取得する。 - ステップ3)で、熱噴き付けで焼結磁石の表面に厚さ20〜100μmの金属Tb又は金属Dを噴き付けることを特徴とする請求項1に記載の調製方法。
- ステップ3)で、箱内部の安定な圧力を保つように、密封箱の本体にアルゴンガスの入口及びアルゴンガス制御弁、密封箱の本体の外部にアルゴンガスコンプレッサーを設置することを特徴とする請求項1に記載の調製方法。
- ステップ3)で、熱噴き付けまで前記の焼結磁石を密封箱の内部にしっかり設置し、焼結磁石の片面に対して熱噴き付けを行ってからあべこべにして、反対面に対して熱噴き付け処理を行うことを特徴とする請求項1に記載の調製方法。
- ステップ4)で、金属Tbを噴き付けの材料にする場合、真空焼結炉内部の温度が850〜970℃、熱処理時間が5〜72h、真空焼結炉内部の真空度が10-3〜10-4Paであり、又は真空焼結炉の内部で5〜10kPaのアルゴンガス保護雰囲気を使用する。金属Dyを噴き付けの材料にする場合、真空焼結炉内部の温度が800〜950℃、熱処理時間が5〜72h、真空焼結炉内真空度が10-3〜10-4Paであり、又は真空焼結炉の内部で5〜10kPaのアルゴンガス保護雰囲気を使用することを特徴とする請求項1に記載の調製方法。
- ステップ5)で、前記の時効処理の温度が470〜550℃、処理時間が2〜5hであることを特徴とする請求項1に記載の調製方法。
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CN201310209231.9A CN103258633B (zh) | 2013-05-30 | 2013-05-30 | 一种R-Fe-B系烧结磁体的制备方法 |
CN201310209231.9 | 2013-05-30 |
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JP5837139B2 JP5837139B2 (ja) | 2015-12-24 |
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EP (1) | EP2808877B1 (ja) |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101516567B1 (ko) * | 2014-12-31 | 2015-05-28 | 성림첨단산업(주) | 중희토 입계확산형 RE-Fe-B계 희토류 자석의 제조방법 및 이에 의해 제조된 중희토 입계확산형 RE-Fe-B계 희토류자석 |
JP2017188661A (ja) * | 2016-04-08 | 2017-10-12 | 沈陽中北通磁科技股▲ふん▼有限公司Shenyang General Magnetic Co.,Ltd. | ネオジム鉄ホウ素廃棄物で製造されるネオジム鉄ホウ素永久磁石およびその製造方法 |
JP2018082146A (ja) * | 2016-08-31 | 2018-05-24 | ▲煙▼台正海磁性材料股▲ふん▼有限公司 | R‐Fe‐B系焼結磁石を製造する方法 |
JP2018082145A (ja) * | 2016-08-31 | 2018-05-24 | ▲煙▼台正海磁性材料股▲ふん▼有限公司 | R‐Fe‐B系焼結磁石の製造方法 |
JP2018082147A (ja) * | 2016-08-31 | 2018-05-24 | ▲煙▼台正海磁性材料股▲ふん▼有限公司 | R‐Fe‐B系焼結磁石の製造方法 |
JP6385551B1 (ja) * | 2017-07-21 | 2018-09-05 | 煙台首鋼磁性材料株式有限公司 | Nd−Fe−B系磁性体の保磁力増強方法 |
JP2018525817A (ja) * | 2015-07-06 | 2018-09-06 | ダイソン・テクノロジー・リミテッド | マグネット |
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US9623482B2 (en) | 2017-04-18 |
CN103258633A (zh) | 2013-08-21 |
US20140352847A1 (en) | 2014-12-04 |
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