(19)
(11) EP 1 715 065 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.08.2007 Bulletin 2007/33

(43) Date of publication A2:
25.10.2006 Bulletin 2006/43

(21) Application number: 06008183.3

(22) Date of filing: 20.04.2006
(51) International Patent Classification (IPC): 
C21C 7/00(2006.01)
(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
Designated Extension States:
AL BA HR MK YU

(30) Priority: 20.04.2005 EP 05075937

(71) Applicant: Corus Staal BV
1970 CA Ijmuiden (NL)

(72) Inventors:
  • Tiekink, Wouter Karel
    1944 NG Beverwijk (NL)
  • Kooter, Rob
    1964 BC Heemskerk (NL)

(74) Representative: Kruit, Jan et al
Corus Technology BV PO Box 10000
1970 CA IJmuiden
1970 CA IJmuiden (NL)

   


(54) A cored-wire for injecting into a steel melt and process of treating a steel melt using said wire


(57) A wire for injecting into a steel melt in an injection direction, the wire comprising a metallic tubular shell enclosing a core, the core comprising calcium or a calcium containing compound, wherein the core also comprises a distribution enhancing compound for distributing the calcium or calcium containing compound in the steel melt in a direction substantially perpendicular to the injection direction wherein the distribution enhancing compound comprises a compound having a vapour pressure which is higher than the vapour pressure of calcium at liquid steel temperatures for obtaining a more homogeneous distribution of the calcium or calcium containing compound in the steel melt. The invention also relates to a process of treating a steel melt using said wire, the use of said wire and the resulting continuously cast steel product.







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