EP 2964792 A2 20160113 - METHOD FOR PRODUCING A COLD-ROLLED FLAT STEEL PRODUCT FOR DEEP-DRAWING AND IRONING APPLICATIONS, FLAT STEEL PRODUCT AND USE OF SUCH A FLAT STEEL PRODUCT
Title (en)
METHOD FOR PRODUCING A COLD-ROLLED FLAT STEEL PRODUCT FOR DEEP-DRAWING AND IRONING APPLICATIONS, FLAT STEEL PRODUCT AND USE OF SUCH A FLAT STEEL PRODUCT
Title (de)
VERFAHREN ZUM ERZEUGEN EINES KALTGEWALZTEN STAHLFLACHPRODUKTS FÜR TIEFZIEH- UND ABSTRECKZIEHANWENDUNGEN, STAHLFLACHPRODUKT UND VERWENDUNG EINES SOLCHEN STAHLFLACHPRODUKTS
Title (fr)
PROCÉDÉ SERVANT À PRODUIRE UN PRODUIT PLAT EN ACIER LAMINÉ À FROID APTE À L'EMBOUTISSAGE ET À L'ÉTIRAGE, PRODUIT PLAT EN ACIER ET UTILISATION D'UN PRODUIT PLAT EN ACIER DE CE TYPE
Publication
Application
Priority
- DE 102013102273 A 20130307
- EP 2014054368 W 20140306
Abstract (en)
[origin: WO2014135645A2] The invention relates to a method for the operationally reliable production of a cold-rolled flat steel product ≤ 0.5 mm thick for deep-drawing and ironing applications. According to said method, a steel melt, containing (in percent by weight) up to 0.008% C, up to 0.005% Al, up to 0.043% Si, 0.15-0.5% Mn, up to 0.02% P, up to 0.03% S, up to 0.020% N and optionally up to 0.03% Ti and optionally up to 0.03% Nb, and iron and unavoidable impurities as the remainder, is subjected, forgoing a Ca treatment, to a secondary metallurgical treatment, which comprises, in addition to a vacuum treatment, a crucible furnace treatment and during which the steel melt to be treated is kept under a slag, the Mn and Fe content of which is less than 15% by weight in total. From the steel melt, a thin slab or a cast strip is produced, which is then hot-rolled to form a hot-rolled strip having a thickness of < 2.5 mm and then wound to from a coil. Then the hot-rolled strips are cold-rolled to form a flat steel product up to 0.5 mm thick. The invention further relates to a correspondingly produced flat steel product and to uses of such a flat steel product.
IPC 8 full level
B22D 11/12 (2006.01); B21B 1/22 (2006.01); B21B 1/46 (2006.01); B21D 35/00 (2006.01); B21D 51/26 (2006.01); B22D 11/126 (2006.01); B22D 11/14 (2006.01); C21D 1/26 (2006.01); C21D 6/00 (2006.01); C21D 8/04 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C25D 5/36 (2006.01)
CPC (source: EP RU US)
B21B 1/22 (2013.01 - US); B21B 1/46 (2013.01 - RU); B22D 11/1206 (2013.01 - EP US); B22D 11/126 (2013.01 - EP US); B22D 11/14 (2013.01 - EP US); C21D 1/26 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/04 (2013.01 - RU); C21D 8/041 (2013.01 - EP US); C21D 8/0426 (2013.01 - EP US); C21D 8/0436 (2013.01 - EP US); C21D 8/0463 (2013.01 - EP US); C22B 9/04 (2013.01 - US); C22B 9/10 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/004 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C25D 5/36 (2013.01 - US); B21B 1/46 (2013.01 - EP US); B21D 35/005 (2013.01 - EP US); B21D 51/26 (2013.01 - EP US)
Citation (search report)
See references of WO 2014135645A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014135645 A2 20140912; WO 2014135645 A3 20150326; CA 2903936 A1 20140912; CA 2903936 C 20180417; CN 105189790 A 20151223; DE 102013102273 A1 20140925; EP 2964792 A2 20160113; EP 2964792 B1 20170503; ES 2636187 T3 20171005; RU 2015142506 A 20170412; RU 2015142506 A3 20180307; RU 2661687 C2 20180719; US 10184159 B2 20190122; US 2016010172 A1 20160114
DOCDB simple family (application)
EP 2014054368 W 20140306; CA 2903936 A 20140306; CN 201480025895 A 20140306; DE 102013102273 A 20130307; EP 14708856 A 20140306; ES 14708856 T 20140306; RU 2015142506 A 20140306; US 201414772788 A 20140306