CN1497617A - 烧结型R-Fe-B系永磁体及其制造方法 - Google Patents
烧结型R-Fe-B系永磁体及其制造方法 Download PDFInfo
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Abstract
Description
No. | 组成(质量%) | ||||
Nd,Pr,Dy | P | O | C | N | |
实施例1 | 30.2 | 0.010 | 0.17 | 0.070 | 0.045 |
比较例1 | 30.2 | - | 0.16 | 0.070 | 0.045 |
实施例2 | 29.8 | 0.008 | 0.18 | 0.067 | 0.055 |
比较例2 | 29.8 | - | 0.16 | 0.067 | 0.050 |
No. | 磁特性 | |||||
Br | iHc | (BH)max | ||||
kG | T | kOe | kA/m | MGOe | kJ/m3 | |
实施例1 | 13.5 | 1.35 | 23.5 | 1.87 | 43.9 | 347 |
比较例1 | 13.5 | 1.35 | 21.7 | 1.73 | 43.8 | 348 |
实施例2 | 14.5 | 1.45 | 16.2 | 1.29 | 50.8 | 403 |
比较例2 | 14.5 | 1.45 | 15.0 | 1.19 | 50.6 | 402 |
No. | 成形体 | 烧结体的尺寸(1)(mm) | ||
尺寸(mm)(1) | 密度(g/cm3) | 加工前 | 加工后 | |
实施例3 | 24.5×17.4×30.0 | 4.30 | 20.0×15.0×26.0 | 19.6×15.4×25.0 |
实施例4 | 24.5×17.4×30.0 | 4.40 | 20.1×14.9×26.2 | 19.6×15.4×25.0 |
实施例5 | 24.5×17.4×30.0 | 4.25 | 19.9×15.1×26.1 | 19.6×15.4×25.0 |
实施例6 | 114.0×95.0×20.5 | 4.28 | 92.5×81.5×18.0 | 91.5×80.5×16.0 |
实施例7 | 50.0×40.0×76.0 | 4.15 | 40.4×35.0×65.2 | 40.0×35.4×64.2 |
实施例8 | 24.5×17.4×30.0 | 4.45 | 20.3×15.1×25.8 | 19.6×15.4×25.0 |
比较例3 | 24.5×17.4×30.0 | 4.35 | 20.2×15.1×25.9 | 加工时破损 |
比较例4 | 24.5×17.4×26.5 | 3.80 | 19.7×14.8×23.3 | 不能加工 |
比较例5 | 24.5×17.4×30.0 | 4.29 | 20.1×15.1×25.9 | 不能加工 |
比较例6 | 24.5×17.4×30.0 | 4.32 | 20.3×15.2×25.8 | 19.6×15.4×25.0 |
比较例7 | 24.5×17.4×30.0 | 3.78 | 20.1×15.0×25.9 | 19.6×15.4×25.0 |
比较例8 | 24.5×17.4×30.0 | 3.74 | 20.0×14.9×26.1 | 19.6×15.4×25.0 |
No. | B0的峰值(1)(×10-1T) | 磁特性 | ||
Br(2)(kG) | iHc(3)(kOe) | (BH)max(4)(MGOe) | ||
实施例3 | 4.5(4极) | 13.4 | 16.0 | 41.1 |
实施例4 | 4.5(4极) | 13.4 | 16.4 | 41.2 |
实施例5 | 4.6(4极) | 13.5 | 15.8 | 41.6 |
实施例6 | 5.2(16极) | 13.6 | 15.5 | 42.2 |
实施例7 | 4.3(8极) | 13.4 | 16.2 | 41.0 |
实施例8 | 2.9(8极) | 12.2 | 23.5 | 34.5 |
比较例3 | 未评价 | 13.4 | 16.9 | 41.3 |
比较例4 | 未评价 | 13.3 | 16.4 | 40.2 |
比较例5 | 未评价 | 13.4 | 16.2 | 41.1 |
比较例6 | 3.2(4极) | 11.8 | 18.3 | 29.5 |
比较例7 | 2.9(8极) | 11.4 | 24.0 | 28.6 |
比较例8 | 3.1(8极) | 11.8 | 23.8 | 31.0 |
No. | 成形体 | 烧结体的尺寸(1)(mm) | |||
尺寸(mm)(1) | 密度(g/cm3) | 生产性(个/h) | 加工前 | 加工后 | |
实施例9 | 25.3×17.5×21.8 | 4.40 | 120 | 20.6×15.3×18.8 | 20.1×15.9×17.2 |
实施例10 | 25.3×17.5×21.8 | 4.35 | 123 | 20.6×15.3×18.75 | 20.1×15.9×17.2 |
实施例11 | 33.4×24.3×55.1 | 4.45 | 125 | 27.4×21.1×47.4 | 26.8×21.8×45.0 |
实施例12 | 33.4×24.3×54.8 | 4.45 | 121 | 27.4×21.1×47.1 | 26.8×21.8×45.0 |
实施例13 | 17.9×11.1×16.4 | 4.40 | 140 | 14.6×9.6×14.2 | 14.0×10.0×12.5 |
比较例9 | 25.3×17.5×19.5 | 3.85 | 116 | 20.3×15.0×15.9 | - |
比较例10 | 25.3×17.5×21.7 | 4.38 | 118 | 20.6×15.3×18.7 | - |
比较例11 | 25.3×17.5×21.5 | 3.80 | 48 | 20.7×15.4×18.8 | 20.1×15.9×17.2 |
比较例12 | 33.4×24.3×54.6 | 3.75 | 45 | 27.3×21.4×47.5 | 26.8×21.8×45.0 |
比较例13 | - | - | 3 | 22.0×14.5×48.0 | 20.1×15.9×28.0 |
比较例14 | - | - | 4 | 30.0×19.5×65.0 | 26.8×21.8×45.0 |
No. | 收率(%) | B0的峰值(1)(×10-1T) | B0的偏差(%) | 磁特性 | ||
Br(2)(kG) | iHc(3)(kOe) | (BH)max(4)(MGOe) | ||||
实施例9 | 72.7 | 5.0(4极) | 2.5 | 13.8 | 15.8 | 43.5 |
实施例10 | 72.9 | 5.1(4极) | 2.7 | 13.9 | 15.5 | 44.3 |
实施例11 | 75.5 | 5.6(4极) | 3.0 | 14.1 | 15.0 | 45.7 |
实施例12 | 76.0 | 5.5(4极) | 2.8 | 14.0 | 15.2 | 45.0 |
实施例13 | 69.8 | 4.6(4极) | 2.6 | 13.7 | 16.4 | 42.5 |
比较例9 | - | - | - | 13.7 | 16.1 | 42.8 |
比较例10 | - | - | - | 13.8 | 15.7 | 43.4 |
比较例11 | 72.3 | 4.5(4极) | 14.5 | 12.6 | 16.7 | 36.1 |
比较例12 | 80.1 | 5.0(4极) | 15.0 | 12.7 | 16.5 | 37.2 |
比较例13 | 17.0 | 4.7(4极) | 8.0 | 12.9 | 12.3 | 37.0 |
比较例14 | 29.1 | 5.2(4极) | 7.5 | 13.1 | 11.0 | 38.6 |
Claims (25)
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JP2002294431 | 2002-10-08 | ||
JP2002294431 | 2002-10-08 | ||
JP2002-294431 | 2002-10-08 | ||
JP2002362391 | 2002-12-13 | ||
JP2002-362391 | 2002-12-13 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102007556B (zh) * | 2008-04-15 | 2012-12-26 | 日东电工株式会社 | 永久磁铁和永久磁铁的制造方法 |
CN103093921A (zh) * | 2013-01-29 | 2013-05-08 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置 |
CN111724956A (zh) * | 2019-03-19 | 2020-09-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN111724961A (zh) * | 2019-03-22 | 2020-09-29 | Tdk株式会社 | R-t-b系永久磁铁 |
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KR101790811B1 (ko) | 2010-03-31 | 2017-10-26 | 히타치 긴조쿠 가부시키가이샤 | 슬러리의 재생방법 및 희토류계 소결자석의 제조방법 및 슬러리의 재생장치 |
US10020100B2 (en) * | 2014-03-27 | 2018-07-10 | Hitachi Metals, Ltd. | R-T-B-based alloy powder and method for producing same, and R-T-B-based sintered magnet and method for producing same |
CN105931833B (zh) * | 2016-04-20 | 2017-11-17 | 北京科技大学 | 一种高取向度烧结钕铁硼永磁材料的制备方法 |
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JPH02178011A (ja) * | 1988-12-29 | 1990-07-11 | Seikosha Co Ltd | ドーナツ型永久磁石の製造方法とこの方法によって製造したドーナツ型永久磁石およびドーナツ型永久磁石の成形金型 |
US5200001A (en) * | 1989-12-01 | 1993-04-06 | Sumitomo Special Metals Co., Ltd. | Permanent magnet |
JP3132393B2 (ja) * | 1996-08-09 | 2001-02-05 | 日立金属株式会社 | R−Fe−B系ラジアル異方性焼結リング磁石の製造方法 |
JP3116885B2 (ja) * | 1998-01-27 | 2000-12-11 | 日立金属株式会社 | 希土類永久磁石の製造方法及び希土類永久磁石 |
JP2001210508A (ja) * | 1999-07-05 | 2001-08-03 | Hitachi Metals Ltd | アークセグメント磁石、リング磁石及び希土類焼結磁石の製造方法 |
JP2001037124A (ja) * | 1999-07-27 | 2001-02-09 | Hitachi Metals Ltd | 回転子 |
JP2002164239A (ja) * | 2000-09-14 | 2002-06-07 | Hitachi Metals Ltd | 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 |
JP2002164238A (ja) * | 2000-09-14 | 2002-06-07 | Hitachi Metals Ltd | 希土類焼結磁石の製造方法およびリング磁石 |
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2003
- 2003-10-08 CN CNB2003101007067A patent/CN100431062C/zh not_active Expired - Lifetime
- 2003-10-08 CN CN2008101610292A patent/CN101447331B/zh not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102007556B (zh) * | 2008-04-15 | 2012-12-26 | 日东电工株式会社 | 永久磁铁和永久磁铁的制造方法 |
CN103093921A (zh) * | 2013-01-29 | 2013-05-08 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置 |
CN103093921B (zh) * | 2013-01-29 | 2016-08-24 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置 |
CN111724956A (zh) * | 2019-03-19 | 2020-09-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN111724956B (zh) * | 2019-03-19 | 2023-06-13 | Tdk株式会社 | R-t-b系永久磁铁 |
CN111724961A (zh) * | 2019-03-22 | 2020-09-29 | Tdk株式会社 | R-t-b系永久磁铁 |
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