发明名称 |
Ribbon-shaped magnetic material and magnetic powder obtained from the material |
摘要 |
<p>A melt spinning apparatus (1) is provided with a tube (2) having a nozzle (3) at the bottom thereof, a coil (4) for heating the tube and a cooling roll (5) having a circumferential surface (53) on which dimple correcting means is provided. A melt spun ribbon (8) is formed by injecting the molten alloy (6) from the nozzle (3) so as to be collided with the circumferential surface (53) of the cooling roll (5) in an inert gas atmosphere (ambient gas) such as helium gas, so that the molten alloy (6) is cooled and then solidified. In this process, dimples to be produced on a roll contact surface of the melt spun ribbon are divided by the dimple correcting means, thereby preventing formation of huge dimples. <IMAGE></p> |
申请公布号 |
EP1160802(A2) |
申请公布日期 |
2001.12.05 |
申请号 |
EP20010112805 |
申请日期 |
2001.05.30 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
ARAI, AKIRA;KATO, HIROSHI |
分类号 |
C22C38/00;B22D11/06;B22F1/00;B22F9/08;C22C1/04;H01F1/053;H01F1/057;H01F1/08;H01F41/02;(IPC1-7):H01F1/057 |
主分类号 |
C22C38/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|