CN1196145C - 生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 - Google Patents
生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 Download PDFInfo
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- CN1196145C CN1196145C CNB998008664A CN99800866A CN1196145C CN 1196145 C CN1196145 C CN 1196145C CN B998008664 A CNB998008664 A CN B998008664A CN 99800866 A CN99800866 A CN 99800866A CN 1196145 C CN1196145 C CN 1196145C
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01F1/057—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
润滑剂的添加量(wt%) | 模制品密度(Mg/m3) | 模制品强度 | ||||
磨耗值(%) | 横断裂强度(MPa) | |||||
己酸甲酯 | 辛酸甲酯 | Ti偶联剂 | ||||
本发明 | 0.01 | 4.25 | -20 | 1.40 | ||
0.02 | 4.30 | -22 | 1.33 | |||
0.50 | 4.40 | -25 | 1.22 | |||
1.00 | 4.50 | -31 | 1.14 | |||
0.02 | 0.50 | 4.42 | -28 | 1.16 | ||
0.50 | 0.02 | 4.42 | -26 | 1.23 | ||
0.02 | 0.10 | 4.38 | -22 | 1.33 | ||
0.50 | 0.02 | 4.44 | -26 | 1.25 | ||
0.02 | 0.50 | 0.02 | 4.49 | -31 | 1.14 | |
0.50 | 0.02 | 0.10 | 4.52 | -28 | 1.19 | |
润滑剂添加量(wt%) | 模制品密度(Mg/m3) | 模制品强度 | ||||
磨耗值(%) | 横断裂强度(MPa) | |||||
脂族酸酯体系 | ||||||
对比 | 0.20 | 4.35 | -34 | 1.12 | ||
1.00 | 4.45 | -38 | 1.00 | |||
2.00 | 4.50 | -40 | 0.94 | |||
4.00 | 4.50 | -53 | 0.64 |
磁体性能 | 模压效率连续摸压的制品数目(制品数) | ||||
Br(T) | HCB(kA/m) | (BH)max(kJ/m3) | HCJ(kA/m) | ||
本发明 | 1.314 | 955.0 | 330.2 | 1200.2 | 100 |
1.323 | 962.9 | 333.4 | 1193.7 | 500 | |
1.333 | 978.8 | 346.2 | 1185.7 | 1000或更多 | |
1.340 | 994.8 | 350.2 | 1185.7 | 1000或更多 | |
1.335 | 978.8 | 347.0 | 1177.8 | 1000或更多 | |
1.335 | 978.8 | 347.0 | 1193.7 | 1000或更多 | |
1.331 | 978.8 | 345.4 | 1185.7 | 1000或更多 | |
1.335 | 986.8 | 348.5 | 1185.7 | 1000或更多 | |
1.342 | 994.8 | 350.9 | 1169.8 | 1000或更多 | |
1.340 | 994.8 | 350.2 | 1169.8 | 1000或更多 | |
磁体性能 | 模压效率连续模压的制品数目(制品数) | ||||
Br(T) | HCB(kA/m) | (BH)max(kJ/m3) | HCJ(kA/m) | ||
对比 | 1.310 | 947.0 | 326.3 | 1209.6 | 20 |
1.317 | 955.O | 338.2 | 1193.7 | 100 | |
1.325 | 962.9 | 342.2 | 1193.7 | 1000或更多 | |
1.327 | 955.0 | 340.6 | 1201.7 | 1000或更多 |
解聚的聚合物 | |||
平均分子量 | 动态粘度(mm2/s) | ||
实例 | 1 | 350 | 30 |
2 | 350 | 30 | |
3 | 350 | 30 | |
4 | 350 | 30 | |
5 | 350 | 30 | |
6 | 350 | 30 | |
7 | 350 | 30 | |
8 | 400 | 90 | |
9 | 450 | 130 | |
10 | 450 | 130 | |
11 | 700 | 3000 | |
12 | 700 | 3000 | |
13 | 700 | 3000 | |
14 | 700 | 3000 | |
15 | 700 | 3000 | |
16 | 550 | 700 | |
17 | 800 | 4000 | |
对比 | 20 | 350 | 30 |
21 | 1000 | 10000 | |
22 | 1000 | 10000 | |
23 | 1500 | 40000 | |
24 | - | - | |
25 | - | - | |
26 | - | - | |
27 | - | - | |
28 | - | - | |
29 | - | - | |
30 | - | - |
润滑剂组分(wt%) | 润滑剂添加量(wt%) | ||||
解聚的聚合物 | 低粘度矿物油 | 烃溶剂 | |||
实例 | 1 | 100 | 0 | 0 | 3.0 |
2 | 50 | 0 | 50 | 0.05 | |
3 | 50 | 0 | 50 | 3.0 | |
4 | 50 | 0 | 50 | 10.0 | |
5 | 70 | 0 | 30 | 3.0 | |
6 | 2 | 0 | 98 | 3.0 | |
7 | 100 | 0 | 0 | 10.0 | |
8 | 100 | 0 | 0 | 0.2 | |
9 | 100 | 0 | 0 | 0.1 | |
10 | 100 | 0 | 0 | 6.0 | |
11 | 70 | 20 | 10 | 0.5 | |
12 | 70 | 20 | 10 | 3.0 | |
13 | 30 | 30 | 40 | 2.0 | |
14 | 10 | 50 | 40 | 0.2 | |
15 | 10 | 50 | 40 | 5.0 | |
16 | 10 | 50 | 40 | 1.0 | |
17 | 20 | 70 | 10 | 2.0 | |
对比 | 油酸酯润滑剂 | PVA(聚乙烯醇) | |||
20 | 50 | 0 | 50 | 12.0 | |
21 | 100 | - | 0 | 0.5 | |
22 | 100 | - | 0 | 5.0 | |
23 | 100 | - | 0 | 1.0 | |
24 | 100 | - | - | 0.2 | |
25 | 100 | - | - | 1.0 | |
26 | 100 | - | - | 2.0 | |
27 | 100 | - | - | 4.0 | |
28 | - | 100 | - | 0.2 | |
29 | - | 100 | - | 3.0 | |
30 | - | 100 | - | 8.0 |
模制品强度 | |||
横断裂强度(MPa) | 磨耗值(%) | ||
实例 | 1 | 3.32 | -10 |
2 | 1.88 | -16 | |
3 | 2.76 | -10 | |
4 | 2.98 | -10 | |
5 | 2.69 | -10 | |
6 | 2.07 | -13 | |
7 | 3.50 | -8 | |
8 | 2.23 | -15 | |
9 | 2.20 | -15 | |
10 | 3.54 | -8 | |
11 | 2.23 | -13 | |
12 | 2.81 | -10 | |
13 | 2.54 | -11 | |
14 | 1.72 | -18 | |
15 | 2.12 | -12 | |
16 | 1.98 | -15 | |
17 | 1.85 | -17 | |
对比 | 20 | 3.10 | -9 |
21 | 1.76 | -25 | |
22 | 1.88 | -25 | |
23 | 1.68 | -30 | |
24 | 1.51 | -34 | |
25 | 1.30 | -38 | |
26 | 1.10 | -45 | |
27 | 1.08 | -55 | |
28 | 1.59 | -30 | |
29 | 1.64 | -25 | |
30 | 1.68 | -20 |
烧结的坯块密度(g/cm3) | 磁体性能 | 在烧结的坯块中C的量(ppm) | ||||
Br(T) | HCJ(kA/m) | (BH)max(kJ/m3) | ||||
实例 | 1 | 7.54 | 1.270 | 1492 | 310.9 | 790 |
2 | 7.55 | 1.280 | 1498 | 315.8 | 680 | |
3 | 7.54 | 1.273 | 1502 | 311.8 | 750 | |
4 | 7.53 | 1.268 | 1490 | 311.3 | 810 | |
5 | 7.54 | 1.271 | 1498 | 311.7 | 760 | |
6 | 7.55 | 1.280 | 1507 | 316.7 | 650 | |
7 | 7.53 | 1.268 | 1489 | 311.8 | 850 | |
8 | 7.54 | 1.274 | 1498 | 312.5 | 680 | |
9 | 7.54 | 1.274 | 1495 | 313.4 | 680 | |
10 | 7.53 | 1.270 | 1491 | 311.5 | 700 | |
11 | 7.55 | 1.270 | 1504 | 311.8 | 700 | |
12 | 7.54 | 1.268 | 1495 | 311.0 | 830 | |
13 | 7.55 | 1.270 | 1500 | 311.7 | 700 | |
14 | 7.55 | 1.277 | 1496 | 315.0 | 710 | |
15 | 7.54 | 1.270 | 1501 | 311.5 | 740 | |
16 | 7.55 | 1.277 | 1499 | 315.6 | 690 | |
17 | 7.54 | 1.276 | 1493 | 313.5 | 720 | |
对比 | 20 | 7.38 | 1.158 | 1460 | 261.7 | 930 |
21 | 7.12 | ※ | ※ | ※ | 1000 | |
22 | 6.38 | ※ | ※ | ※ | 2200 | |
23 | 6.88 | ※ | ※ | ※ | 2000 | |
24 | 7.53 | 1.265 | 1500.8 | 311.3 | 650 | |
25 | 7.12 | ※ | ※ | ※ | 1300 | |
26 | 6.75 | ※ | ※ | ※ | 2000 | |
27 | 5.12 | ※ | ※ | ※ | 2800 | |
28 | 7.40 | 1.245 | 1501.7 | 302.5 | 1100 | |
29 | 6.80 | ※ | ※ | ※ | 2200 | |
30 | 4.90 | ※ | ※ | ※ | 3100 |
解聚的聚合物 | |||
平均分子量 | 动态粘度(mm2/s) | ||
实例 | 1 | 350 | 30 |
3 | 350 | 30 | |
9 | 450 | 130 | |
11 | 700 | 3000 | |
13 | 700 | 3000 | |
15 | 700 | 3000 | |
16 | 550 | 700 | |
对比 | 25 | - | - |
29 | - | - |
润滑剂组分(wt%) | 润滑剂的添加量(wt%) | ||||
解聚的聚合物 | 低粘度矿物油 | 烃溶剂 | |||
实例 | 1 | 100 | 0 | 3.0 | |
3 | 50 | 50 | 3.0 | ||
9 | 100 | 0 | 0.1 | ||
11 | 70 | 20 | 10 | 0.5 | |
13 | 30 | 30 | 40 | 2.0 | |
15 | 10 | 50 | 40 | 5.0 | |
16 | 10 | 50 | 40 | 1.0 | |
对比 | 油酸酯润滑剂 | PVA(聚乙烯醇) | |||
25 | 100 | - | - | 0.2 | |
29 | - | 100 | - | 0.2 |
模压性评价 | |||
初始强度(g/cm3) | 有模压缺陷的制品的数目(10,000件制品) | ||
实例 | 1 | 4.4 | 68 |
4.2 | 54 | ||
2 | 4.4 | 72 | |
4.2 | 73 | ||
6 | 4.4 | 98 | |
4.2 | 82 | ||
8 | 4.4 | 102 | |
4.2 | 84 | ||
10 | 4.4 | 90 | |
4.2 | 76 | ||
12 | 4.2 | 103 | |
4.2 | 81 | ||
13 | 4.2 | 112 | |
4.2 | 95 | ||
对比 | 4 | 4.4 | 912 |
4.2 | 448 | ||
8 | 4.4 | 310 | |
4.2 | 169 |
润滑剂添加量(wt%) | 润滑剂2组分 | 润滑剂的添加量(wt%) | |||||||
己酸甲酯 | 辛酸甲酯 | Ti偶联剂 | 解聚的聚合物 | 低粘度矿物油 | 烃溶剂 | ||||
分子量 | |||||||||
实例 | 1 | 0.06 | 100 | 350 | 2.0 | ||||
2 | 0.09 | 100 | 350 | 3.0 | |||||
3 | 0.048 | 60 | 350 | 40 | 6.0 | ||||
4 | 0.215 | 50 | 350 | 50 | 5.0 | ||||
5 | 0.015 | 0.01 | 100 | 450 | 0.5 | ||||
6 | 0.01 | 0.01 | 100 | 450 | 1.0 | ||||
7 | 0.07 | 0.01 | 60 | 450 | 40 | 2.0 | |||
8 | 0.012 | 0.01 | 52 | 450 | 48 | 1.0 | |||
9 | 0.18 | 40 | 600 | 20 | 40 | 6.0 | |||
10 | 0.24 | 40 | 600 | 20 | 40 | 8.0 | |||
11 | 0.08 | 0.01 | 40 | 700 | 20 | 40 | 2.0 | ||
12 | 0.12 | 0.12 | 0.04 | 40 | 700 | 20 | 40 | 8.0 | |
己酸甲酯润滑剂 | Ti偶联剂 | 油酸酯润滑剂 | |||||||
对比 | 1 | 100 | 0.2 | ||||||
2 | 100 | 4.0 | |||||||
3 | 100 | 0.3 | |||||||
4 | 99.7 | 0.3 | 0.3 | ||||||
5 |
模制品强度 | |||
横断裂强度(MPa) | 磨耗值(%) | ||
实例 | 1 | 1.98 | -16 |
2 | 2.00 | -14 | |
3 | 2.20 | -13 | |
4 | 2.10 | -14 | |
5 | 1.75 | -22 | |
6 | 1.80 | -20 | |
7 | 1.85 | -17 | |
8 | 1.78 | -23 | |
9 | 2.22 | -13 | |
10 | 2.30 | -12 | |
11 | 1.98 | -16 | |
12 | 2.40 | -11 | |
对比 | 1 | 1.51 | -34 |
2 | 1.08 | -55 | |
3 | 1.68 | -30 | |
4 | 1.60 | -32 | |
5 |
烧结的坯块密度(g/cm3) | 磁体性能 | 在烧结的坯块中C的量(ppm) | ||||
Br(T) | HCJ(kA/m) | (BH)max(kJ/m3) | ||||
实例 | 1 | 7.54 | 1.284 | 1495 | 323.9 | 750 |
2 | 7.53 | 1.284 | 1498 | 323.9 | 690 | |
3 | 7.55 | 1.280 | 1498 | 321.9 | 700 | |
4 | 7.54 | 1.282 | 1496 | 322.9 | 710 | |
5 | 7.53 | 1.288 | 1491 | 326.0 | 600 | |
6 | 7.53 | 1.286 | 1492 | 325.0 | 620 | |
7 | 7.54 | 1.288 | 1495 | 326.0 | 660 | |
8 | 7.54 | 1.285 | 1490 | 324.5 | 620 | |
9 | 7.53 | 1.280 | 1493 | 321.9 | 760 | |
10 | 7.53 | 1.279 | 1491 | 321.4 | 820 | |
11 | 7.52 | 1.288 | 1499 | 326.0 | 750 | |
12 | 7.54 | 1.279 | 1498 | 321.4 | 850 | |
对比 | 1 | 7.38 | 1.265 | 1500 | 311.4 | 650 |
2 | 5.12 | ※ | ※ | ※ | 2800 | |
3 | 7.54 | 1.283 | 1496 | 323.4 | 700 | |
4 | 7.54 | 1.285 | 1492 | 324.5 | 700 | |
5 |
模压性的评价 | |||
初始密度(g/cm3) | 有模压缺陷的制品数目(10,000件) | ||
实例 | 1 | 4.4 | 161 |
4.2 | 146 | ||
3 | 4.4 | 113 | |
4.2 | 71 | ||
5 | 4.4 | 172 | |
4.2 | 152 | ||
7 | 4.4 | 140 | |
4.2 | 92 | ||
9 | 4.4 | 112 | |
4.2 | 81 | ||
12 | 4.2 | 105 | |
4.2 | 77 | ||
对比 | 1 | 4.4 | 439 |
4.2 | 180 | ||
4 | 4.4 | 350 | |
4.2 | 211 |
主要组分 | |||||
己酸甲酯 | 辛酸甲酯 | 月桂酸甲酯 | 油酸甲酯 | ||
碳7的数目(6) | 碳9的数目(8) | 碳13的数目(12) | 碳19的数目(18) | ||
纯度98 | 纯度98 | 纯度95 | 纯度99 | ||
实例 | 1 | 10.00 | - | - | - |
2 | - | 5.00 | - | - | |
3 | 10.00 | - | - | - | |
4 | - | 10.00 | - | - | |
5 | 2.00 | 4.00 | - | - | |
对比 | 6 | 50.00 | - | - | - |
7 | - | 5.00 | - | - | |
8 | 10.00 | - | - | - | |
9 | - | 40.00 | - | - | |
10 | - | - | 10.00 | - | |
11 | - | - | - | 10.00 |
混合物 | 溶剂 | ||||
花生酸 | 二十二烷酸 | 正链烷烃 | 异链烷烃 | ||
碳20的数目 | 碳22的数目 | ||||
纯度98 | 纯度98 | ||||
实例 | 1 | 0.010 | - | 98.990 | - |
2 | 0.100 | - | 94.900 | - | |
3 | - | 0.020 | - | 89.980 | |
4 | - | 0.100 | - | 89.900 | |
5 | 0.010 | 0.010 | 93.980 | - | |
对比 | 6 | 0.010 | - | 49.990 | - |
7 | 0.700 | - | 94.300 | - | |
8 | - | 0.002 | - | 39.998 | |
9 | - | 0.100 | - | 59.900 | |
10 | - | - | - | 90.000 | |
11 | - | - | - | 90.000 |
模压压力 | 注射压力 | 回弹的量 | 模制品的横断裂强度 | ||
T/cm2 | kg | mm | MPa | ||
实例 | 1 | 1.0 | 71 | 0.71 | 1.37 |
2 | 1.0 | 69 | 0.69 | 1.41 | |
3 | 1.0 | 70 | 0.70 | 1.37 | |
4 | 1.0 | 65 | 0.68 | 1.38 | |
5 | 1.0 | 73 | 0.71 | 1.40 | |
对比 | 6 | 1.0 | 73 | 0.71 | 1.01 |
7 | 1.0 | 63 | 0.70 | 0.98 | |
8 | 1.0 | 89 | 0.99 | 1.38 | |
9 | 1.0 | 68 | 0.73 | 0.98 | |
10 | 1.0 | 92 | 1.09 | 1.41 | |
11 | 1.0 | 105 | 1.28 | 1.51 |
磁体性能 | 连续模压的制品的数目 | ||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | (制品件数) | ||
实例 | 1 | 1.341 | 955.2 | 343.8 | >1000 |
2 | 1.330 | 956.0 | 341.5 | >1000 | |
3 | 1.333 | 956.0 | 342.9 | >1000 | |
4 | 1.334 | 955.3 | 342.5 | >1000 | |
5 | 1.330 | 955.5 | 342.3 | >1000 | |
对比 | 6 | 1.327 | 955.0 | 340.6 | >1000 |
7 | 1.330 | 957.0 | 341.5 | >1000 | |
8 | 1.315 | 955.3 | 330.9 | 300 | |
9 | 1.327 | 955.6 | 340.1 | >1000 | |
10 | 1.310 | 955.7 | 330.2 | 50 | |
11 | 1.300 | 955.9 | 325.3 | 20 |
Claims (16)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP129506/1998 | 1998-04-22 | ||
JP10129506A JPH11307330A (ja) | 1998-04-22 | 1998-04-22 | R−Fe−B系磁石の製造方法 |
JP28390898A JP4216929B2 (ja) | 1998-10-06 | 1998-10-06 | R−Fe−B系磁石成形用離型剤 |
JP283908/1998 | 1998-10-06 | ||
JP11113800A JP2000306753A (ja) | 1999-04-21 | 1999-04-21 | R‐Fe‐B系永久磁石の製造方法とR‐Fe‐B系永久磁石成形用潤滑剤 |
JP113800/1999 | 1999-04-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB200410063479XA Division CN1288679C (zh) | 1998-04-22 | 1999-04-22 | 生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 |
Publications (2)
Publication Number | Publication Date |
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CN1272214A CN1272214A (zh) | 2000-11-01 |
CN1196145C true CN1196145C (zh) | 2005-04-06 |
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CNB200410063479XA Expired - Lifetime CN1288679C (zh) | 1998-04-22 | 1999-04-22 | 生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 |
CNB998008664A Expired - Lifetime CN1196145C (zh) | 1998-04-22 | 1999-04-22 | 生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 |
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CNB200410063479XA Expired - Lifetime CN1288679C (zh) | 1998-04-22 | 1999-04-22 | 生产R-Fe-B磁体的方法和用于模压加工该磁体的润滑剂 |
Country Status (5)
Country | Link |
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US (1) | US6361738B1 (zh) |
EP (1) | EP0991086B1 (zh) |
CN (2) | CN1288679C (zh) |
DE (1) | DE69941106D1 (zh) |
WO (1) | WO1999054892A1 (zh) |
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DE10066419B8 (de) * | 1999-08-30 | 2015-09-17 | Hitachi Metals, Ltd. | Verfahren zum Konservieren (Aufrechterhalten) eines Legierungspulvermaterials für einen gesinterten Magneten vom R-Fe-B-Typ |
US6482353B1 (en) * | 1999-11-12 | 2002-11-19 | Sumitomo Special Metals Co., Ltd. | Method for manufacturing rare earth magnet |
JP4698867B2 (ja) | 2001-03-29 | 2011-06-08 | 日立金属株式会社 | R−Fe−B系合金の造粒粉の製造方法およびR−Fe−B系合金焼結体の製造方法 |
WO2003045611A1 (fr) | 2001-11-28 | 2003-06-05 | Neomax Co., Ltd. | Procede et appareil permettant de produire une poudre d'un alliage de terres rares et procede permettant de produire un comprime fritte d'un alliage de terres rares |
EP2527062B1 (en) | 2004-06-30 | 2014-06-04 | TDK Corporation | Method for producing a rare earth sintered magnet |
JP5266522B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
JP5266523B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
EP2685472A4 (en) * | 2011-06-24 | 2015-04-08 | Nitto Denko Corp | RARE EARTH PERMANENT MAGNET AND PROCESS FOR PRODUCING RARE EARTH PERMANENT MAGNET |
KR101878998B1 (ko) | 2011-06-24 | 2018-07-16 | 닛토덴코 가부시키가이샤 | 희토류 영구 자석 및 희토류 영구 자석의 제조 방법 |
US20130141197A1 (en) * | 2011-06-24 | 2013-06-06 | Nitto Denko Corporation | Rare-earth permanent magnet and method for manufacturing rare-earth permanent magnet |
WO2014056447A1 (zh) | 2012-10-11 | 2014-04-17 | 厦门钨业股份有限公司 | 稀土合金磁性粉末成形体的制造方法和稀土磁铁的制造方法 |
CN102938282B (zh) * | 2012-10-23 | 2015-07-29 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系永磁体及其生产方法 |
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 |
CN103377820B (zh) | 2013-07-17 | 2015-11-25 | 烟台首钢磁性材料股份有限公司 | 一种r-t-b-m系烧结磁体及其制造方法 |
CN103600070B (zh) * | 2013-10-24 | 2017-11-10 | 厦门钨业股份有限公司 | 稀土合金磁性粉末成形体的制造方法和稀土磁铁的制造方法 |
CN103996478B (zh) * | 2014-06-11 | 2016-10-26 | 廊坊京磁精密材料有限公司 | 一种钕铁硼磁体的制备方法 |
CN116864288A (zh) * | 2023-07-19 | 2023-10-10 | 南京理工大学 | 烧结钕铁硼磁粉成型脱模剂及高矫顽力磁体制备方法 |
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US5051200A (en) * | 1989-09-19 | 1991-09-24 | The B. F. Goodrich Company | Flexible high energy magnetic blend compositions based on rare earth magnetic particles in highly saturated nitrile rubber |
US5486224A (en) * | 1993-12-28 | 1996-01-23 | Sumitomo Metal Industries, Ltd. | Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets |
US5666635A (en) * | 1994-10-07 | 1997-09-09 | Sumitomo Special Metals Co., Ltd. | Fabrication methods for R-Fe-B permanent magnets |
JP3459477B2 (ja) * | 1994-10-07 | 2003-10-20 | 住友特殊金属株式会社 | 希土類磁石用原料粉末の製造方法 |
JPH093504A (ja) * | 1995-06-20 | 1997-01-07 | Sumitomo Metal Ind Ltd | 希土類・鉄・ボロン系焼結永久磁石製造用の成形材料 |
US5990218A (en) * | 1998-11-20 | 1999-11-23 | The Goodyear Tire & Rubber Company | Polymeric magnet compound |
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- 1999-04-22 CN CNB998008664A patent/CN1196145C/zh not_active Expired - Lifetime
- 1999-04-22 EP EP99917110A patent/EP0991086B1/en not_active Expired - Lifetime
- 1999-04-22 DE DE69941106T patent/DE69941106D1/de not_active Expired - Lifetime
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CN1272214A (zh) | 2000-11-01 |
DE69941106D1 (de) | 2009-08-27 |
EP0991086A4 (en) | 2003-04-23 |
CN1559728A (zh) | 2005-01-05 |
CN1288679C (zh) | 2006-12-06 |
US6361738B1 (en) | 2002-03-26 |
WO1999054892A1 (fr) | 1999-10-28 |
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EP0991086A1 (en) | 2000-04-05 |
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Application publication date: 20001101 Assignee: BEIJING JINGCI MAGNET Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000374 Denomination of invention: Method for producing R-Fe-B magnet and lubricant for molding the same Granted publication date: 20050406 License type: Common License Record date: 20130703 Application publication date: 20001101 Assignee: ADVANCED TECHNOLOGY & MATERIALS Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000365 Denomination of invention: Method for producing R-Fe-B magnet and lubricant for molding the same Granted publication date: 20050406 License type: Common License Record date: 20130701 Application publication date: 20001101 Assignee: BEIJING ZHONG KE SAN HUAN HI-TECH Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2013990000364 Denomination of invention: Method for producing R-Fe-B magnet and lubricant for molding the same Granted publication date: 20050406 License type: Common License Record date: 20130701 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20001101 Assignee: NINGBO YUNSHENG Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2014990000031 Denomination of invention: Method for producing R-Fe-B magnet and lubricant for molding the same Granted publication date: 20050406 License type: Common License Record date: 20140114 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Japan Tokyo port harbor 2 chome No. 70 Patentee after: HITACHI METALS, Ltd. Address before: Tokyo, Japan Patentee before: HITACHI METALS, Ltd. |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20001101 Assignee: Hitachi metal ring Ci material (Nantong) Co.,Ltd. Assignor: HITACHI METALS, Ltd. Contract record no.: 2017990000034 Denomination of invention: Method for producing R-Fe-B magnet and lubricant for molding the same Granted publication date: 20050406 License type: Common License Record date: 20170209 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CI03 | Correction of invention patent | ||
CI03 | Correction of invention patent |
Correction item: A transferee of the entry into force of the contract Correct: Hitachi metal ring magnets (Nantong) Co. Ltd. False: Hitachi metal ring Ci material (Nantong) Co. Ltd. Number: 11 Volume: 33 |
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CX01 | Expiry of patent term |
Granted publication date: 20050406 |
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CX01 | Expiry of patent term |