Global Patent Index - EP 0133758 A2

EP 0133758 A2 19850306 - Iron-rare earth-boron permanent magnets by hot working.

Title (en)

Iron-rare earth-boron permanent magnets by hot working.

Title (de)

Permanente Magnete aus Eisen, Metallen aus seltenen Erden und Bor durch Wärmebehandlung.

Title (fr)

Aimants permanents à partir de fer, de métaux de terres rares et de bore, par traitement thermique.

Publication

EP 0133758 A2 19850306 (EN)

Application

EP 84304731 A 19840711

Priority

US 52017083 A 19830804

Abstract (en)

High energy product, magnetically anisotropic permanent magnets are produced by hot working over-quenched or fine grained, melt-spun materials comprising iron, neodymium and/or praseodymium, and boron to produce a fully densified, fine grained body that has undergone plastic flow.

IPC 1-7

H01F 1/04

IPC 8 full level

C22C 38/00 (2006.01); C21D 8/12 (2006.01); H01F 1/057 (2006.01); H01F 1/08 (2006.01)

CPC (source: EP)

H01F 1/0576 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0133758 A2 19850306; EP 0133758 A3 19870520; EP 0133758 B1 19900919; AU 3096284 A 19850207; AU 574697 B2 19880714; BR 8403875 A 19850709; CA 1236381 A 19880510; DE 3483226 D1 19901025; ES 534879 A0 19850816; ES 8507289 A1 19850816; JP H0420242 B2 19920402; JP S60100402 A 19850604; MX 167658 B 19930401

DOCDB simple family (application)

EP 84304731 A 19840711; AU 3096284 A 19840723; BR 8403875 A 19840803; CA 451851 A 19840412; DE 3483226 T 19840711; ES 534879 A 19840803; JP 16348684 A 19840804; MX 2660784 A 19840803