EP 3572165 B1 20240403 - METHOD FOR THE MANUFACTURE OF A MATERIAL FOR THE PRODUCTION OF RARE EARTH MAGNETS
Title (en)
METHOD FOR THE MANUFACTURE OF A MATERIAL FOR THE PRODUCTION OF RARE EARTH MAGNETS
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES MATERIALS FÜR DIE HERSTELLUNG VON SELTENERD-MAGNETEN
Title (fr)
PROCÉDÉ DE FABRICATION D'UN MATÉRIAU POUR LA FABRICATION D'AIMANTS EN TERRES RARES
Publication
Application
Priority
DE 102018112411 A 20180524
Abstract (en)
[origin: JP2019203190A] To provide a production method and a production plant of a departure material optimized for producing high performance rare earth magnet.SOLUTION: There is provided a production method of powdery departure materials AM1, AM2 for producing rare earth magnet, comprising steps of: preparing at least one magnetic raw material or magnetization possible raw material M; pulverizing the same, in which a powdery intermediate product ZP is produced, the powdery particles 2 of the powdery intermediate product ZP comprise a corner part and/or an edge part; chamfering the powdery particles 2 of the powdery intermediate product ZP; using the optimized powdery product 10 as a first departure material AM1 for producing a first rare earth magnet 19, or classifying the optimized powdery products 10, in which minute wear part F generated in chamfering is removed, after classification, the fraction including powdery particles 12 subjected to chamfering is used as a second departure material AM2 for producing a second rare earth magnet 20.SELECTED DRAWING: Figure 5
IPC 8 full level
B22F 1/065 (2022.01); B22F 9/04 (2006.01); H01F 1/057 (2006.01)
CPC (source: CN EP KR RU US)
B22F 1/065 (2022.01 - CN EP KR RU US); B22F 9/04 (2013.01 - CN EP US); H01F 1/053 (2013.01 - CN KR RU); H01F 1/057 (2013.01 - RU); H01F 1/0571 (2013.01 - EP); H01F 1/0576 (2013.01 - US); H01F 1/06 (2013.01 - CN KR); H01F 41/00 (2013.01 - CN); H01F 41/0293 (2013.01 - KR US); 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)
EP 3572165 A1 20191127; EP 3572165 B1 20240403; CN 110523995 A 20191203; CN 110523995 B 20220802; DE 102018112411 A1 20191128; JP 2019203190 A 20191128; JP 6858215 B2 20210414; KR 102659637 B1 20240422; KR 20190134486 A 20191204; RU 2726948 C1 20200717; US 11309127 B2 20220419; US 2019362892 A1 20191128
DOCDB simple family (application)
EP 19170743 A 20190424; CN 201910409915 A 20190517; DE 102018112411 A 20180524; JP 2019078815 A 20190417; KR 20190059268 A 20190521; RU 2019114680 A 20190515; US 201916411932 A 20190514