EP 3055870 B1 20191113 - PROCESS FOR MANUFACTURING A PERMANENT MAGNET
Title (en)
PROCESS FOR MANUFACTURING A PERMANENT MAGNET
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES PERMANENTMAGNETEN
Title (fr)
PROCÉDÉ DE FABRICATION D'UN AIMANT PERMANENT
Publication
Application
Priority
- DE 102013220452 A 20131010
- EP 2014070047 W 20140919
Abstract (en)
[origin: WO2015051986A1] The invention relates to a method for producing a permanent magnet, wherein a powder of a magnetic material is produced and the powder of the magnetic material is processed into a permanent magnet. According to the invention, the producing of the powder of the magnetic material comprises the steps: grinding a suspension of particles of the magnetic material of a first average particle size in liquid nitrogen, obtaining particles of the magnetic material of a second average particle size, which is smaller than the first average particle size, and separating a suspension of the ground magnetic material in liquid nitrogen, wherein particles having a particle size smaller than a predetermined upper particle size are separated.
IPC 8 full level
H01F 1/055 (2006.01); H01F 1/057 (2006.01); H01F 1/059 (2006.01)
CPC (source: EP KR US)
B22F 1/056 (2022.01 - EP KR US); B22F 5/00 (2013.01 - KR); B22F 9/023 (2013.01 - EP); C22C 28/00 (2013.01 - EP); C22C 38/002 (2013.01 - EP); C22C 38/005 (2013.01 - EP); H01F 1/0551 (2013.01 - EP KR); H01F 1/0571 (2013.01 - EP KR US); H01F 1/059 (2013.01 - EP KR); H01F 41/0253 (2013.01 - KR); B22F 2009/043 (2013.01 - EP); B22F 2998/10 (2013.01 - EP); B22F 2999/00 (2013.01 - EP); C22C 2202/02 (2013.01 - EP)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015051986 A1 20150416; CN 105612594 A 20160525; CN 105612594 B 20181123; DE 102013220452 A1 20150430; EP 3055870 A1 20160817; EP 3055870 B1 20191113; KR 20160070788 A 20160620
DOCDB simple family (application)
EP 2014070047 W 20140919; CN 201480055286 A 20140919; DE 102013220452 A 20131010; EP 14777023 A 20140919; KR 20167012176 A 20140919