(19)
(11) EP 1 991 375 A1

(12)

(43) Date of publication:
19.11.2008 Bulletin 2008/47

(21) Application number: 07757226.1

(22) Date of filing: 20.02.2007
(51) International Patent Classification (IPC): 
B21B 37/32(2006.01)
(86) International application number:
PCT/US2007/062440
(87) International publication number:
WO 2007/095646 (23.08.2007 Gazette 2007/34)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 17.02.2006 US 774974 P

(71) Applicant: Alcoa Inc.
Pittsburgh, PA 15212 (US)

(72) Inventors:
  • BECK, William J.
    Bettendorf, IA 52722 (US)
  • GARIMELLA, Srinivas S.
    Pittsburgh, PA 15238 (US)
  • GLOBIG, Michael A.
    New Kensington, PA 15068 (US)
  • PUDA, Mark E.
    Cheswick, PA 15024 (US)
  • RINGLE, Michael A.
    Knoxville, TN 37922 (US)
  • SCHULTHEIS, Frederic J.
    Knoxville, TN 37919 (US)
  • VERNON, Neil R.
    San Antonio, TX 78258 (US)

(74) Representative: Day, Caroline Margaret 
Olswang 90 High Holborn
GB-London WC1V 6XX
GB-London WC1V 6XX (GB)

   


(54) APPLICATION OF INDUCTION HEATING TO CONTROL SHEET FLATNESS IN COLD ROLLING MILLS