Global Patent Index - EP 1133777 A1

EP 1133777 A1 20010919 - SOFT MAGNETIC MATERIAL AND METHOD FOR PRODUCING SAME

Title (en)

SOFT MAGNETIC MATERIAL AND METHOD FOR PRODUCING SAME

Title (de)

WEICHMAGNETISCHER WERKSTOFF UND VERFAHREN ZU DESSEN HERSTELLUNG

Title (fr)

MATERIAU MAGNETIQUE DOUX ET SON PROCEDE DE PRODUCTION

Publication

EP 1133777 A1 20010919 (DE)

Application

EP 00974291 A 20000905

Priority

  • DE 0003041 W 20000905
  • DE 19945592 A 19990923

Abstract (en)

[origin: WO0122439A1] The invention relates to a soft magnetic material and a method for producing the same. The inventive material is especially suitable for the use in electrovalves. The individual powder particles (11) of a metallic, powdery source component are at least essentially provided with a high-resistance surface layer (12) on the surface thereof and the powder particles (11) are compressed to form the material (10). The surface layers (12) of the powder particles (11) are then at least partially bonded together when the powdery metallic source component is compressed to form the soft magnetic material (10). Bonding is obtained by means of shock-compression.

IPC 1-7

H01F 1/24; H01F 41/02; F16K 31/06

IPC 8 full level

B22F 1/02 (2006.01); B22F 3/00 (2006.01); B22F 3/14 (2006.01); C22C 1/10 (2006.01); C22C 33/02 (2006.01); F16K 31/06 (2006.01); H01F 1/20 (2006.01); H01F 1/24 (2006.01); H01F 41/02 (2006.01)

CPC (source: EP US)

C22C 1/10 (2013.01 - EP US); F16K 31/06 (2013.01 - EP US); H01F 1/24 (2013.01 - EP US); H01F 41/0246 (2013.01 - EP US)

Citation (search report)

See references of WO 0122439A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0122439 A1 20010329; DE 19945592 A1 20010412; EP 1133777 A1 20010919; JP 2003510805 A 20030318; US 6620376 B1 20030916

DOCDB simple family (application)

DE 0003041 W 20000905; DE 19945592 A 19990923; EP 00974291 A 20000905; JP 2001525720 A 20000905; US 85639801 A 20010522