EP 0654801 B1 20000607 - Magnetic powder, permanent magnet produced therefrom and process for producing them
Title (en)
Magnetic powder, permanent magnet produced therefrom and process for producing them
Title (de)
Magnetisches Pulver, Dauermagnet und Herstellungsverfahren
Title (fr)
Poudre magnétique, aimant permanent et procédé de fabrication
Publication
Application
Priority
JP 28271793 A 19931111
Abstract (en)
[origin: EP0654801A2] A magnetic powder and a permanent magnet are provided which have magnetic properties enhanced by magnetic interaction. Disclosed are a magnetic powder comprising a mixture of two or more powders including a magnetic powder A (residual magnetic flux density: BrA, coercive force: HcA) and a magnetic powder B (residual magnetic flux density: BrB, coercive force: HcB) of which the residual magnetic flux densities and the coercive forces have the following relationships: BrA>BrB and HcA<HcB, and a bonded magnet or a sintered magnet produced from the magnetic powder, and a method for mixing magnetic powders and a process for producing a magnet. <IMAGE>
IPC 1-7
H01F 1/055; H01F 1/057; H01F 1/058; H01F 1/059; H01F 1/03; H01F 1/09
IPC 8 full level
H01F 1/03 (2006.01); H01F 1/055 (2006.01); H01F 1/058 (2006.01); H01F 1/059 (2006.01); H01F 1/08 (2006.01); H01F 1/09 (2006.01); H01F 1/26 (2006.01)
CPC (source: EP)
H01F 1/0302 (2013.01); H01F 1/0306 (2013.01); H01F 1/055 (2013.01); H01F 1/0557 (2013.01); H01F 1/0558 (2013.01); H01F 1/058 (2013.01); H01F 1/059 (2013.01); H01F 1/083 (2013.01); H01F 1/09 (2013.01); H01F 1/26 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0654801 A2 19950524; EP 0654801 A3 19950705; EP 0654801 B1 20000607; DE 69424845 D1 20000713; DE 69424845 T2 20001207; TW 294815 B 19970101
DOCDB simple family (application)
EP 94114972 A 19940922; DE 69424845 T 19940922; TW 83110196 A 19941104