Global Patent Index - EP 1546428 A2

EP 1546428 A2 20050629 - METHOD AND DEVICE FOR THE PRODUCTION OF METAL ALLOY BODIES HAVING LOCALIZED SMALL PARTICLE SIZE

Title (en)

METHOD AND DEVICE FOR THE PRODUCTION OF METAL ALLOY BODIES HAVING LOCALIZED SMALL PARTICLE SIZE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON METALLLEGIERUNGSKÖRPERN MIT LOKALISIERTEN KLEINEN KORNGRÖSSEN

Title (fr)

PROCEDE ET DISPOSITIF POUR FABRIQUER DES CORPS D'ALLIAGE METALLIQUE A GRANULOMETRIE LOCALEMENT FAIBLE

Publication

EP 1546428 A2 20050629 (DE)

Application

EP 03798871 A 20030926

Priority

  • DE 0303312 W 20030926
  • DE 10245896 A 20020930

Abstract (en)

[origin: WO2004031431A2] The invention relates to a method for the production of metal alloys, especially magnesium alloys, having small particle size in a non-extruded metal alloy body, in addition to a device for carrying out said method and a product which is produced according to the inventive method. Cyclical, location-dependent, alternating charging of partial surfaces of the surface of the non-extruded metal alloy body enables them to be locally compressed and de-compressed. In association with a process temperature of up to 600 DEG C of the metal alloy body, this leads to a reduction in the particle size of the metal alloy on the surface, which in turn leads to a significant improvement of the rollability of the metal alloy.

IPC 1-7

C22F 1/00

IPC 8 full level

B21C 23/20 (2006.01); B21C 23/21 (2006.01); B21C 25/08 (2006.01); B21J 5/00 (2006.01); C22F 1/00 (2006.01); C22F 1/06 (2006.01)

CPC (source: EP)

B21C 23/001 (2013.01); B21C 23/20 (2013.01); B21C 23/218 (2013.01); B21C 25/08 (2013.01); B21J 1/025 (2013.01); B21J 5/00 (2013.01); B21J 5/008 (2013.01); C22F 1/00 (2013.01); C22F 1/06 (2013.01)

Citation (search report)

See references of WO 2004031431A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004031431 A2 20040415; WO 2004031431 A3 20040812; AT E371753 T1 20070915; AU 2003275934 A1 20040423; AU 2003275934 A8 20040423; DE 10245896 A1 20040408; DE 10393888 D2 20050901; DE 50308081 D1 20071011; EP 1546428 A2 20050629; EP 1546428 B1 20070829

DOCDB simple family (application)

DE 0303312 W 20030926; AT 03798871 T 20030926; AU 2003275934 A 20030926; DE 10245896 A 20020930; DE 10393888 T 20030926; DE 50308081 T 20030926; EP 03798871 A 20030926