Global Patent Index - EP 1218561 B1

EP 1218561 B1 20031203 - METHOD FOR THE HEAT TREATMENT OF STRUCTURE CASTINGS FROM AN ALUMINIUM ALLOY TO BE USED THEREFOR

Title (en)

METHOD FOR THE HEAT TREATMENT OF STRUCTURE CASTINGS FROM AN ALUMINIUM ALLOY TO BE USED THEREFOR

Title (de)

VERFAHREN ZUR WÄRMEBEHANDLUNG VON STRUKTURGUSSTEILEN AUS EINER DAFÜR ZU VERWENDENDEN ALUMINIUMLEGIERUNG

Title (fr)

PROCEDE DE TRAITEMENT THERMIQUE DE PIECES STRUCTURALES MOULEES CONSTITUEES D'UN ALLIAGE D'ALUMINIUM DESTINE A ETRE UTILISE A CET EFFET

Publication

EP 1218561 B1 20031203 (DE)

Application

EP 00965954 A 20000909

Priority

  • DE 19945754 A 19990924
  • DE 10002021 A 20000119
  • EP 0008822 W 20000909

Abstract (en)

[origin: US6752885B1] A process for the heat treatment of structure castings made from an aluminum alloy, comprising the steps of: placing the structure casting onto a contour-embracing product receiving device, heating to 490° C. over the course of approximately 30 minutes, holding the temperature of 490° C. for a time of between 90 and 120 minutes, quenching in air from 490° C. to approximately 100° over the course of approximately 4 minutes, if appropriate followed by quenching in water, heating to 250° C. over the course of approximately 15 minutes, holding the temperature of 250° C. for a time of between 30 and 120 minutes, quenching in air to 40° C., if appropriate followed by quenching in water; a light metal alloy for use with this process, having the following composition: Si: 2-11.5%, Fe: 0.15-0.4%, Mg: 0.3-5.5%, Cu & It: 0.02%, Mn: 0.4-0.8%, Ti: 0.1-0.2%, remainder aluminum and trace elements, the alloys with a high silicon content having a low magnesium content and vice versa.

IPC 1-7

C22F 1/04

IPC 8 full level

B22D 1/00 (2006.01); B22D 29/00 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C22C 21/08 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/043 (2006.01); C22F 1/047 (2006.01)

CPC (source: EP US)

C22C 21/02 (2013.01 - EP US); C22C 21/08 (2013.01 - EP US); C22F 1/04 (2013.01 - EP US); C22F 1/043 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0123633 A2 20010405; WO 0123633 A3 20011101; AT E255646 T1 20031215; EP 1218561 A2 20020703; EP 1218561 B1 20031203; ES 2211617 T3 20040716; JP 2003510463 A 20030318; US 6752885 B1 20040622

DOCDB simple family (application)

EP 0008822 W 20000909; AT 00965954 T 20000909; EP 00965954 A 20000909; ES 00965954 T 20000909; JP 2001527012 A 20000909; US 8877902 A 20020320