|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||252/062.54; 252/062.55; 148/302; 075/255; 428/600; 428/606; 428/687|
|우선권정보||JP-0399880 (2000-12-28); JP-0159772 (2000-05-30)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 12|
Disclosed herein is a cooling roll which can provide bonded a magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and cooling roll 5 having a circumferential surface 53 in 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 ...
1. A ribbon-shaped magnetic material which is manufactured by colliding a molten alloy to a circumferential surface of a cooling roll so as to cool and then solidify it, comprising:a plurality of ridges and grooves formed on a roll contact surface of the ribbon-shaped magnetic material, said grooves having a width in the range of 1-50 μm: wherein the plurality of ridges and grooves are transferred to the roll contact surface of the ribbon-shaped magnetic material from the circumferential surface of the cooling roll by dimple correcting means formed on th...