EP 1566461 B1 20071017 - Recrystallization of metal alloy sheet with convection & infrared radiation heating
Title (en)
Recrystallization of metal alloy sheet with convection & infrared radiation heating
Title (de)
Rekristallisation eines metalllegierunsbleches mittels konvektions- und INforarotstrahlungsheizung
Title (fr)
Recristallisation d'une tôle en alliage métallique par chauffage convection ainsi que par chauffage à rayonnement infrarouge
Publication
Application
Priority
EP 04003805 A 20040219
Abstract (en)
[origin: EP1566461A1] A method is disclosed for heating a cold worked sheet of superplastically formable metal composition to recrystallize its microstructure to a suitably formable condition and further to heat the sheet to a temperature for an immediate forming operation. The method utilizes a combination of hot air convection heating and infrared radiation to rapidly accomplish the heating. High temperature infrared heating elements provide most of the energy during an initial high heating rate phase and then those elements are shut off and heating is completed with controlled temperature hot air to prevent overheating of the sheet metal. <IMAGE>
IPC 8 full level
C22F 1/04 (2006.01); B21D 26/02 (2006.01); C21D 1/40 (2006.01); C21D 1/42 (2006.01); C22F 1/047 (2006.01); C21D 1/34 (2006.01); C21D 9/48 (2006.01); C21D 9/677 (2006.01)
CPC (source: EP)
C22F 1/04 (2013.01); C22F 1/047 (2013.01); C21D 1/34 (2013.01); C21D 9/48 (2013.01); C21D 9/677 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1566461 A1 20050824; EP 1566461 B1 20071017; DE 602004009530 D1 20071129; DE 602004009530 T2 20080207
DOCDB simple family (application)
EP 04003805 A 20040219; DE 602004009530 T 20040219