EP 1185387 B1 20021211 - METHOD FOR CONTINUOUSLY CASTING BETWEEN TWO ROLLS AUSTENITIC STAINLESS STEEL STRIPS WITH EXCELLENT SURFACE QUALITY AND RESULTING STRIPS
Title (en)
METHOD FOR CONTINUOUSLY CASTING BETWEEN TWO ROLLS AUSTENITIC STAINLESS STEEL STRIPS WITH EXCELLENT SURFACE QUALITY AND RESULTING STRIPS
Title (de)
VERFAHREN ZUM STRANGGIESSEN ZWISCHEN ZYLINDERN VON AUSTENITISCHEN ROSTFREIEN STAHLBÄNDERN HOHER OBERFLÄCHENQUALITÄT UND DIE SO HERGESTELLTEN BÄNDER
Title (fr)
PROCEDE DE COULEE CONTINUE ENTRE CYLINDRES DE BANDES D'ACIER INOXYDABLE AUSTENTIQUE D'EXCELLENTE QUALITE DE SURFACE, ET BANDES ANSI OBTENUES
Publication
Application
Priority
- FR 0000780 W 20000412
- FR 9905052 A 19990422
Abstract (en)
[origin: US6739383B1] The invention concerns a method for continuously casting an austenitic stainless steel strip with a thickness not more than 10 mm, directly from liquid metal, between two cooled horizontal rolls, characterised in that: said steel composition in weight proportions comprises: %C<=0.08%; %Si<=1; %P<=0.04; %Mn<=2; %Cr between 17 and 20; %Ni between 8 and 10.5; %S between 0.007 and 0.040; the rest being iron and the impurities resulting from preparation; the ratio Creq/Nieq ranges between 1.55 and 1.90 with: Creq(%)=%Cr+1.37 %Mo+1.5 %Si+2%Nb+3 %Ti; Nieq(%)=%Ni+0.31 %Mn+22 %C+14.2 %N+Cu; the surface of the rolls comprises contiguous dimples with more or less circular or elliptical cross-section, of diameter between 100 and 1500 mum and depth between 20 and 150 mum; the inerting gas surrounding the meniscus is a gas soluble in steel or a mixture of such gases, or consists of at least 50% by volume of such a gas or mixture of gases.
IPC 1-7
IPC 8 full level
B22D 11/00 (2006.01); B22D 11/06 (2006.01); B22D 11/117 (2006.01); C22C 38/00 (2006.01); C22C 38/40 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
B22D 11/002 (2013.01 - EP US); B22D 11/06 (2013.01 - KR); B22D 11/0622 (2013.01 - EP US); B22D 11/0651 (2013.01 - EP US); B22D 11/0697 (2013.01 - EP US); C22C 38/40 (2013.01 - EP US)
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)
US 6739383 B1 20040525; AT E229391 T1 20021215; AU 3661800 A 20001110; AU 767990 B2 20031127; BR 0009894 A 20020115; CN 1187148 C 20050202; CN 1351528 A 20020529; CZ 20013776 A3 20020313; CZ 296650 B6 20060517; DE 60000997 D1 20030123; DE 60000997 T2 20030717; DK 1185387 T3 20030324; EP 1185387 A1 20020313; EP 1185387 B1 20021211; ES 2188523 T3 20030701; FR 2792560 A1 20001027; FR 2792560 B1 20010601; JP 2002542039 A 20021210; JP 4454868 B2 20100421; KR 100636868 B1 20061019; KR 20010113824 A 20011228; PL 194231 B1 20070531; PL 351566 A1 20030505; PT 1185387 E 20030430; RU 2239518 C2 20041110; SI 1185387 T1 20030430; SK 14602001 A3 20020509; SK 286180 B6 20080407; TR 200103014 T2 20020321; TW 434058 B 20010516; WO 0064612 A1 20001102; ZA 200108666 B 20040630
DOCDB simple family (application)
US 95921002 A 20020114; AT 00915237 T 20000412; AU 3661800 A 20000412; BR 0009894 A 20000412; CN 00807763 A 20000412; CZ 20013776 A 20000412; DE 60000997 T 20000412; DK 00915237 T 20000412; EP 00915237 A 20000412; ES 00915237 T 20000412; FR 0000780 W 20000412; FR 9905052 A 19990422; JP 2000613594 A 20000412; KR 20017013393 A 20011019; PL 35156600 A 20000412; PT 00915237 T 20000412; RU 2001131423 A 20000412; SI 200030035 T 20000412; SK 14602001 A 20000412; TR 200103014 T 20000412; TW 89107657 A 20000426; ZA 200108666 A 20011022