(19)
(11) EP 2 126 145 A1

(12)

(43) Date of publication:
02.12.2009 Bulletin 2009/49

(21) Application number: 08724553.6

(22) Date of filing: 17.01.2008
(51) International Patent Classification (IPC): 
C21D 6/00(2006.01)
(86) International application number:
PCT/US2008/000586
(87) International publication number:
WO 2008/088834 (24.07.2008 Gazette 2008/30)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(30) Priority: 17.01.2007 US 880757 P

(71) Applicant: KVA, Inc.
Rancho Santa Fe, CA 92067 (US)

(72) Inventors:
  • MCCRINK, Edward, J.
    Escondido, CA 92025 (US)
  • CODD, Daniel, S.
    Escondido, CA 92025 (US)

(74) Representative: Parry, Christopher Stephen 
Saunders & Dolleymore LLP 9 Rickmansworth Road
Watford WD18 0JU
Watford WD18 0JU (GB)

   


(54) METHOD FOR IMPROVING THE PERFORMANCE OF SEAM-WELDED JOINTS USING POST-WELD HEAT TREATMENT