EP 0383035 A3 19910703 - IRON-SILICON ALLOY POWDER MAGNETIC CORES AND METHOD OF MANUFACTURING THE SAME
Title (en)
IRON-SILICON ALLOY POWDER MAGNETIC CORES AND METHOD OF MANUFACTURING THE SAME
Publication
Application
Priority
- JP 785389 A 19890118
- JP 33589989 A 19891225
Abstract (en)
[origin: EP0383035A2] An Fe-Si alloy powder magnetic core comprises an alloy powder of an average particle diameter of 10-100 mu m, produced by water atomization, in which the composition by weight of the alloy powder is 2-12% silicon and 0.05-0.95% oxygen with the balance being essentially iron. The process of manufacturing the powder magnetic core is also disclosed.
IPC 1-7
IPC 8 full level
C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); H01F 1/147 (2006.01); H01F 1/24 (2006.01); H01F 41/02 (2006.01)
CPC (source: EP)
H01F 1/14766 (2013.01); H01F 1/24 (2013.01); H01F 41/0246 (2013.01)
Citation (search report)
- [Y] EP 0088992 A2 19830921 - ASEA AB [SE]
- [A] EP 0135980 A1 19850403 - CRUCIBLE MATERIALS CORP [US]
- [A] EP 0087781 A1 19830907 - TOSHIBA KK [JP]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 9, no. 212 (E-339) 29 August 1985, & JP-A-60 074602 (NIHON FERRITE KK) 26 April 1985,
- [A] PATENT ABSTRACTS OF JAPAN vol. 9, no. 212 (E-339) 29 August 1985, & JP-A-60 074603 (NIHON FERRITE KK) 26 April 1985,
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0383035 A2 19900822; EP 0383035 A3 19910703; EP 0383035 B1 19951004; DE 69022751 D1 19951109; DE 69022751 T2 19960404; JP H02290002 A 19901129; JP H0682577 B2 19941019
DOCDB simple family (application)
EP 90100930 A 19900117; DE 69022751 T 19900117; JP 33589989 A 19891225