EP 0331286 A2 19890906 - Rapid compaction of rare earth-transition metal alloys in a fluid-filled die.
Title (en)
Rapid compaction of rare earth-transition metal alloys in a fluid-filled die.
Title (de)
Schnellverdichtung einer Seltenerd-Übergangsmetallegierung in einer mit Flüssigkeit gefüllten Matrize.
Title (fr)
Compactage rapide d'alliages terres rares-métaux de transistion dans une matrice remplie d'un fluide.
Publication
Application
Priority
US 16355888 A 19880303
Abstract (en)
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).
IPC 1-7
IPC 8 full level
B22F 3/08 (2006.01); B22F 3/12 (2006.01); B22F 3/14 (2006.01); B22F 3/15 (2006.01); C22C 33/02 (2006.01); H01F 1/055 (2006.01); H01F 1/057 (2006.01); H01F 1/08 (2006.01); H01F 41/02 (2006.01)
CPC (source: EP)
B22F 3/1208 (2013.01); B22F 3/14 (2013.01); B22F 3/15 (2013.01); B30B 11/002 (2013.01); H01F 1/0556 (2013.01); H01F 1/0576 (2013.01); H01F 41/0266 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0331286 A2 19890906; EP 0331286 A3 19891102; JP H01287204 A 19891117
DOCDB simple family (application)
EP 89300871 A 19890130; JP 5020189 A 19890303