JP6213726B2 - 永久磁石の製造方法 - Google Patents
永久磁石の製造方法 Download PDFInfo
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- JP6213726B2 JP6213726B2 JP2013197699A JP2013197699A JP6213726B2 JP 6213726 B2 JP6213726 B2 JP 6213726B2 JP 2013197699 A JP2013197699 A JP 2013197699A JP 2013197699 A JP2013197699 A JP 2013197699A JP 6213726 B2 JP6213726 B2 JP 6213726B2
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Description
本発明の実施の形態の永久磁石の製造方法では、まず、材料のMnとBiとを粉砕し、粉末状にする。次に、そのMnの粉末とBiの粉末とを混合して成形する。図1に示すように、その成形体1を、外側にヘリウムフリー超電導磁石2が配置された電気炉3の中に入れ、ヘリウムフリー超電導磁石2で磁場を印加しつつ、電気炉3で成形体1の焼結を行う。これにより、強磁性のMnBiの永久磁石を得ることができる。
次に、これらを確認するため、以下の試験を行った。
2 ヘリウムフリー超伝導磁石
3 電気炉
Claims (2)
- Mnの粉末とBiの粉末とを混合して成形し、その成形体を1〜20Tの磁場中で、240〜262℃の温度で12〜48時間焼結することを特徴とする永久磁石の製造方法。
- Mnの粉末とBiの粉末とを混合して成形し、その成形体を10〜20Tの磁場中で、240〜262℃の温度で焼結することを特徴とする永久磁石の製造方法。
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WO2017170129A1 (ja) * | 2016-03-28 | 2017-10-05 | Tdk株式会社 | 永久磁石の製造方法 |
JP7446600B2 (ja) * | 2019-12-23 | 2024-03-11 | 国立大学法人 鹿児島大学 | Cu-Mn-Al系磁石の製造方法 |
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JP2000203997A (ja) * | 1999-01-04 | 2000-07-25 | Hideyuki Yasuda | 非平衡組織を利用した結晶方位配向多結晶の磁場中製造法 |
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