JP5101849B2 - 磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法及びこの磁性材料を用いて作製した希土類ボンド磁石 - Google Patents
磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法及びこの磁性材料を用いて作製した希土類ボンド磁石 Download PDFInfo
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- JP5101849B2 JP5101849B2 JP2006249826A JP2006249826A JP5101849B2 JP 5101849 B2 JP5101849 B2 JP 5101849B2 JP 2006249826 A JP2006249826 A JP 2006249826A JP 2006249826 A JP2006249826 A JP 2006249826A JP 5101849 B2 JP5101849 B2 JP 5101849B2
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- Hard Magnetic Materials (AREA)
Description
そして、後述するように真空チャンバ11を減圧した後、この真空チャンバ11を加熱手段4で加熱することで、処理室10を略均等に所定温度(例えば、600℃〜1700℃)に加熱できる。
10 処理室
11 真空チャンバ
12 収納室
M 金属磁性材料
Claims (5)
- 希土類元素及び鉄を含有する粉末状の原料の表面に、Dy、Tb、Ho、Er、Tm、Gd、Nd、Sm、Pr、Ce、La、Y、Zr、Cr、Mo、V、Ga、Zn、Cu、Mg、Li、Al、Mn、Nb、Tiの中から選択される少なくとも1種を含有する金属蒸発材料を付着させる処理工程を含む磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法であって、
前記処理工程は、この処理工程を実施する処理室を加熱し、この処理室内に予め配置した前記金属蒸発材料を蒸発させて金属蒸気雰囲気を処理室内に形成する第一工程と、処理室内の温度より低く保持した原料をこの処理室に投入し、この処理室内で原料を移動させながら、処理室内と原料との間の温度差によって、原料表面に前記金属蒸発材料を選択的に付着させ、原料表面に付着した金属蒸発材料をその結晶粒界に拡散させる第二工程とを含むことを特徴とする磁気特性、耐熱性、耐候性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法。 - 前記金属蒸気雰囲気が、前記処理室内で飽和状態であることを特徴とする請求項1記載の磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法。
- 前記処理工程を実施した後、所定温度下で表面に金属蒸発材料が付着した原料を加熱する第一の熱処理工程を含むことを特徴とする請求項1または請求項2記載の磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法。
- 前記第一の熱処理工程を実施した後、この第一の熱処理工程での熱処理温度より低い温度で表面に金属蒸発材料が付着した原料を加熱する第二の熱処理工程を含むことを特徴とする請求項3記載の磁気特性、耐熱性、耐食性及び耐候性に優れたボンド磁石用の磁性材料の製造方法。
- 請求項1〜請求項4のいずれか1項に記載の製造方法で得た磁性材料を、樹脂バインダーと共に成形してなることを特徴とする希土類ボンド磁石。
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CN104979917A (zh) * | 2015-07-02 | 2015-10-14 | 广东美芝制冷设备有限公司 | 用于压缩机电机的永磁体及其制备方法和应用 |
WO2019080755A1 (zh) * | 2017-10-27 | 2019-05-02 | 内蒙古盛本荣科技有限公司 | 生产粉体的装置及其方法 |
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EP2455954B1 (en) * | 2009-07-15 | 2019-10-16 | Hitachi Metals, Ltd. | Process for production of r-t-b based sintered magnets |
BRPI1009273A2 (pt) * | 2010-03-02 | 2016-03-08 | Toyota Motor Co Ltd | método de fabricação de pó para núcleo de poeira, núcleo de poeira feito do pó para núcleo de poeira fabricado através do método, e aparelho para fabricação de pó para núcleo de poeira |
KR101534717B1 (ko) * | 2013-12-31 | 2015-07-24 | 현대자동차 주식회사 | 희토류계 자석 제조 방법 |
CN105321702B (zh) * | 2015-11-19 | 2017-10-20 | 北京科技大学 | 一种提高烧结NdFeB磁体矫顽力的方法 |
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CN108396203A (zh) * | 2018-05-04 | 2018-08-14 | 上海康速金属材料有限公司 | 稀土铒元素增强SLM专用AlSi10Mg铝合金粉末及其应用 |
CN108486429A (zh) * | 2018-05-04 | 2018-09-04 | 上海康速金属材料有限公司 | 稀土铒元素增强SLM专用AlSi7Mg铝合金粉末及其应用 |
JP6928270B2 (ja) * | 2018-09-26 | 2021-09-01 | 日亜化学工業株式会社 | 磁性粉末およびその製造方法 |
JP7364158B2 (ja) * | 2019-12-26 | 2023-10-18 | 国立大学法人東北大学 | 希土類鉄窒素系磁性粉末、ボンド磁石用コンパウンド、ボンド磁石及び希土類鉄窒素系磁性粉末の製造方法 |
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CN104979917A (zh) * | 2015-07-02 | 2015-10-14 | 广东美芝制冷设备有限公司 | 用于压缩机电机的永磁体及其制备方法和应用 |
WO2019080755A1 (zh) * | 2017-10-27 | 2019-05-02 | 内蒙古盛本荣科技有限公司 | 生产粉体的装置及其方法 |
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