Global Patent Index - EP 0723487 B1

EP 0723487 B1 19970903 - METHOD OF ADJUSTING THE COMPOSITION OF A MOLTEN METAL SUCH AS STEEL, AND PLANT FOR IMPLEMENTATION THEREOF

Title (en)

METHOD OF ADJUSTING THE COMPOSITION OF A MOLTEN METAL SUCH AS STEEL, AND PLANT FOR IMPLEMENTATION THEREOF

Title (de)

VERFAHREN UND VORRICHTUNG ZUR EINSTELLUNG DER LEGIERUNGSZUSAMMENSETZUNG EINES FLÜSSIGEN METALLS, Z.B STAHL

Title (fr)

PROCEDE DE REGLAGE DE LA COMPOSITION D'UN METAL LIQUIDE TEL QUE L'ACIER, ET INSTALLATION POUR SA MISE EN OEUVRE

Publication

EP 0723487 B1 19970903 (FR)

Application

EP 94929580 A 19941005

Priority

  • FR 9401161 W 19941005
  • FR 9312469 A 19931015

Abstract (en)

[origin: US5868816A] PCT No. PCT/FR94/01161 Sec. 371 Date May 20, 1996 Sec. 102(e) Date May 20, 1996 PCT Filed Oct. 5, 1994 PCT Pub. No. WO95/10377 PCT Pub. Date Apr. 20, 1995A process for adjusting the composition of a liquid metal, such as steel, is provided wherein liquid metal is sucked up from a start receptacle into a reactor which is at a reduced pressure with respect to the start receptacle. First, the liquid metal is made to flow inside the reactor under conditions close to plug flow where it undergoes a metallurgical treatment. Next, after the liquid metal has been conveyed through the reactor it is completely discharged into a finish receptacle which is also at a reduced pressure with respect to the reactor. To insure thorough mixing, the reactor is divided into a plurality of cells, each of which has its own independent gas injector for agitating the liquid metal therein.

IPC 1-7

B22D 11/10; C21C 5/56

IPC 8 full level

B22D 11/10 (2006.01); B22D 11/11 (2006.01); B22D 11/112 (2006.01); B22D 11/113 (2006.01); B22D 11/116 (2006.01); B22D 11/117 (2006.01); B22D 11/119 (2006.01); C21C 5/56 (2006.01); C21C 7/00 (2006.01); C21C 7/10 (2006.01)

CPC (source: EP KR US)

B22D 11/10 (2013.01 - KR); B22D 11/11 (2013.01 - EP US); C21C 5/567 (2013.01 - EP US); Y10S 75/957 (2013.01 - US)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

WO 9510377 A1 19950420; AT E157573 T1 19970915; AU 683094 B2 19971030; AU 7858294 A 19950504; CA 2174109 A1 19950420; DE 69405401 D1 19971009; DE 69405401 T2 19980312; EP 0723487 A1 19960731; EP 0723487 B1 19970903; ES 2107252 T3 19971116; FR 2711083 A1 19950421; FR 2711083 B1 19951201; JP H09503821 A 19970415; KR 100327288 B1 20021018; KR 960704659 A 19961009; US 5868816 A 19990209

DOCDB simple family (application)

FR 9401161 W 19941005; AT 94929580 T 19941005; AU 7858294 A 19941005; CA 2174109 A 19941005; DE 69405401 T 19941005; EP 94929580 A 19941005; ES 94929580 T 19941005; FR 9312469 A 19931015; JP 51138994 A 19941005; KR 19960701902 A 19960412; US 61283496 A 19960520