EP 1244819 A1 20021002 - METHOD OF QUENCHING AN ALLOY SHEET TO MINIMIZE DISTORTION
Title (en)
METHOD OF QUENCHING AN ALLOY SHEET TO MINIMIZE DISTORTION
Title (de)
VERFAHEN ZUM ABSCHRECKEN EINES LEGIERUNGSBLECHES ZUR MINIMIERUNG VON VERZIEHUNG
Title (fr)
PROCEDE DE TREMPE DE FEUILLE D'ALLIAGE POUR MINIMISER LA DEFORMATION
Publication
Application
Priority
- CA 0001522 W 20001215
- US 46730699 A 19991217
Abstract (en)
[origin: WO0144532A1] The invention relates to a method of producing a sheet article or other elongated product of solution heat-treated aluminum alloy substantially free of permanent thermal distortion. The article is subjected to a solution heat treatment at a solutionizing temperature to dissolve precipitates present in the alloy, cooled in a gas from the solutionizing temperature to an upper critical temperature below which precipitation of second phase particles of the alloy may occur, further cooled in a liquid from the upper temperature to a lower critical temperature below which precipitation of the components may no longer occur, and optionally additionally cooled to a temperature below the lower critical temperature. The cooling of the article in the gas is carried out at a rate of cooling at which the yield strength of the article remains high enough to resist permanent deformation caused by thermal stress generated within the article by the cooling.
IPC 1-7
IPC 8 full level
C22F 1/05 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/047 (2006.01); C21D 9/573 (2006.01)
IPC 8 main group level
C22F (2006.01)
CPC (source: EP)
C22F 1/04 (2013.01); C22F 1/047 (2013.01); C21D 9/573 (2013.01)
Citation (search report)
See references of WO 0144532A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0144532 A1 20010621; AT E301733 T1 20050815; AU 2137601 A 20010625; BR 0016417 A 20020820; CA 2392617 A1 20010621; DE 60021915 D1 20050915; EP 1244819 A1 20021002; EP 1244819 B1 20050810; IS 6407 A 20020605; JP 2003517100 A 20030520; NO 20022889 D0 20020617; NO 20022889 L 20020617
DOCDB simple family (application)
CA 0001522 W 20001215; AT 00984732 T 20001215; AU 2137601 A 20001215; BR 0016417 A 20001215; CA 2392617 A 20001215; DE 60021915 T 20001215; EP 00984732 A 20001215; IS 6407 A 20020605; JP 2001545609 A 20001215; NO 20022889 A 20020617