EP 0990474 B1 20031217 - Inert gas shrouding device for moulds for the continuous casting of metals
Title (en)
Inert gas shrouding device for moulds for the continuous casting of metals
Title (de)
Inertgasabschirmvorrichtung für Kokillen zum Stranggiessen von Metall
Title (fr)
Dispositif d'inertage pour lingotière de coulée continue des métaux
Publication
Application
Priority
FR 9812128 A 19980928
Abstract (en)
[origin: EP0990474A1] Continuous steel casting device, comprises a blanketing device having a ring shaped inflatable membrane made of a gas permeable material in order to protect the surface of the molten metal. Blanketing device of the gap (27) surrounding the free surface (17) of the liquid metal (2) which is continuously cast in an ingot mould (6) positioned under an adaptor (1) having a cast gate (5) of liquid metal (2) feeding the ingot mould, comprises a ring-shaped inflatable membrane (19) made of a gas permeable material. The thickness of the membrane (when inflated) is superior to the maximal distance between the top flange (26) of the ingot mould and the bottom (3) of the adaptor during casting. A tubular armature (20) is positioned inside the membrane and is provided with at least one intake manifold (21,22) for an inert gas. The device also comprises outlets (23,24) for releasing the gas into the membrane, fixing elements (25) for fixing the membrane on the bottom (3) of the adaptor or on the top flange (26) of the ingot mold, the membrane surrounding the casting gate, inflating means to inflate the membrane and to keep it inflated and in seal contact with the bottom of the adaptor and the top flange of the ingot mold.
IPC 1-7
IPC 8 full level
B22D 11/04 (2006.01); B22D 11/106 (2006.01)
CPC (source: EP KR)
B22D 11/04 (2013.01 - KR); B22D 11/106 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0990474 A1 20000405; EP 0990474 B1 20031217; AT E256517 T1 20040115; BR 9904398 A 20001226; CA 2284375 A1 20000328; DE 69913631 D1 20040129; DE 69913631 T2 20041223; ES 2213337 T3 20040816; FR 2783732 A1 20000331; FR 2783732 B1 20001027; JP 2000176614 A 20000627; KR 20000023354 A 20000425
DOCDB simple family (application)
EP 99402209 A 19990909; AT 99402209 T 19990909; BR 9904398 A 19990928; CA 2284375 A 19990927; DE 69913631 T 19990909; ES 99402209 T 19990909; FR 9812128 A 19980928; JP 31282899 A 19990928; KR 19990040723 A 19990921