EP 1466024 A1 20041013 - METHOD FOR THE PRODUCTION OF A SIDERURGICAL PRODUCT MADE OF CARBON STEEL WITH A HIGH COPPER CONTENT, AND SIDERURGICAL PRODUCT OBTAINED ACCORDING TO SAID METHOD
Title (en)
METHOD FOR THE PRODUCTION OF A SIDERURGICAL PRODUCT MADE OF CARBON STEEL WITH A HIGH COPPER CONTENT, AND SIDERURGICAL PRODUCT OBTAINED ACCORDING TO SAID METHOD
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES EISENHÜTTENPRODUKTS AUS UNLEGIERTEM STAHL MIT HOHEM KUPFERGEHALT UND DANACH ERHALTENES EISENHÜTTENPRODUKT
Title (fr)
PROCEDE DE FABRICATION D UN PRODUIT SIDERURGIQUE EN ACIER AU CARBONE RICHE EN CUIVRE, ET PRODUIT SIDERURGIQUE AINSI OBTENU
Publication
Application
Priority
- FR 0300088 W 20030113
- FR 0200387 A 20020114
Abstract (en)
[origin: WO03057928A1] The invention relates to a method for producing a siderurgical product made of carbon steel having a high copper content, according to which: - a liquid steel having the composition: 0.0005 % </= C </= 1 %; 0.5 </= Cu </= 10 %; 0 </= Mn </= 2 %; 0 </= Si </= 5 %; 0 </= Ti </= 0.5 %; 0 </= Nb </= 0.5 %; 0 </= Ni </= 5 %; 0 </= Al </= 2 %, the remainder being iron and impurities, is produced; - said liquid steel is poured directly in the form of a thin strip having a thickness of no more than 10 mm; - the strip is subjected to forced cooling and/or is surrounded by a non-oxidizing atmosphere while having a temperature of more than 1000< C; - said thin strip is hot rolled at a reduction rate of at least 10 %, the temperature at the end of the rolling process being such that all of the copper is still in a solid solution in the ferrite and/or austenite matrix; - the strip is then subjected to forced cooling so as to maintain the copper in an oversaturated solid solution in the ferrite and/or austenite matrix; - and the strip is coiled. The invention also relates to a siderurgical product obtained according to said method.
IPC 1-7
IPC 8 full level
B21B 1/46 (2006.01); B21B 3/00 (2006.01); B22D 11/00 (2006.01); B22D 11/06 (2006.01); B22D 11/12 (2006.01); B22D 11/22 (2006.01); C21D 8/00 (2006.01); C21D 8/04 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/16 (2006.01)
CPC (source: EP KR US)
C21D 8/04 (2013.01 - KR); C21D 8/0415 (2013.01 - EP US); C21D 8/0426 (2013.01 - EP US); C21D 8/0473 (2013.01 - EP US); C22C 1/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP KR US); C22C 38/16 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - EP US); C21D 2211/004 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US)
Citation (search report)
See references of WO 03057928A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03057928 A1 20030717; AT E368132 T1 20070815; AU 2003216715 A1 20030724; BR 0307165 A 20041103; CA 2473050 A1 20030717; CN 100334235 C 20070829; CN 1633509 A 20050629; DE 60315129 D1 20070906; DE 60315129 T2 20080410; EP 1466024 A1 20041013; EP 1466024 B1 20070725; ES 2289270 T3 20080201; FR 2834722 A1 20030718; FR 2834722 B1 20041224; JP 2005514518 A 20050519; KR 20040069357 A 20040805; US 2005028898 A1 20050210; US 2008257456 A1 20081023; US 7425240 B2 20080916
DOCDB simple family (application)
FR 0300088 W 20030113; AT 03712234 T 20030113; AU 2003216715 A 20030113; BR 0307165 A 20030113; CA 2473050 A 20030113; CN 03803945 A 20030113; DE 60315129 T 20030113; EP 03712234 A 20030113; ES 03712234 T 20030113; FR 0200387 A 20020114; JP 2003558221 A 20030113; KR 20047010945 A 20030113; US 11059908 A 20080428; US 50145604 A 20040929