发明名称 |
Rapid compaction of rare earth-transition metal alloys in a fluid-filled die. |
摘要 |
<p>A novel method is provided for making large, fully densified rare earth-transition metal magnets. The method involves rapid compaction of very finely crystalline rare earth-transition metal alloy particles (2) retained in a die (12), using pressure applied to a substantially incompressible fluid medium (6) surrounding said particles (2).</p> |
申请公布号 |
EP0331286(A2) |
申请公布日期 |
1989.09.06 |
申请号 |
EP19890300871 |
申请日期 |
1989.01.30 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
VERNIA, PETER;HARASEK, ELIZABETH F.;LANZI, RONALD G. |
分类号 |
B22F3/08;B22F3/12;B22F3/14;B22F3/15;C22C33/02;H01F1/055;H01F1/057;H01F1/08;H01F41/02 |
主分类号 |
B22F3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|