EP 2054536 A2 20090506 - PROCESS FOR COATING A HOT- OR COLD-ROLLED STEEL STRIP CONTAINING 6 - 30% BY WEIGHT OF MN WITH A METALLIC PROTECTIVE LAYER
Title (en)
PROCESS FOR COATING A HOT- OR COLD-ROLLED STEEL STRIP CONTAINING 6 - 30% BY WEIGHT OF MN WITH A METALLIC PROTECTIVE LAYER
Title (de)
VERFAHREN ZUM BESCHICHTEN EINES 6 - 30 GEW.-% MN ENTHALTENDEN WARM- ODER KALTGEWALZTEN STAHLBANDS MIT EINER METALLISCHEN SCHUTZSCHICHT
Title (fr)
PROCÉDÉ DE RECOUVREMENT D'UN FEUILLARD D'ACIER LAMINÉ À CHAUD OU À FROID ET CONTENANT DE 6 À 30 % EN POIDS DE MN PAR UNE COUCHE MÉTALLIQUE DE PROTECTION
Publication
Application
Priority
- EP 2007058602 W 20070820
- DE 102006039307 A 20060822
Abstract (en)
[origin: US2010065160A1] A method for coating hot-rolled or cold-rolled steel strip containing 6-30 wt %. Mn with a metallic protective layer, includes annealing the steel strip at a temperature of 800-1100° C. under an annealing atmosphere containing nitrogen, water and hydrogen and then subjecting the steel strip to hot dip coating. The method provide an economical way of hot dip coating a high manganiferous sheet steel in that, in order to produce a metallic protective layer substantially free from oxidic sub-layers on the steel strip, the % H2O/% H2 ratio of the water content % H2O to the hydrogen content % H2 in the annealing atmosphere is adjusted as a function of the respective annealing temperature TG as follows: % H2O/% H2≰8·105·TG3.529.
IPC 8 full level
C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/12 (2006.01)
CPC (source: EP KR US)
C21D 9/46 (2013.01 - KR); C21D 9/561 (2013.01 - KR); C22C 1/11 (2023.01 - KR); C23C 2/0038 (2022.08 - KR); C23C 2/02 (2013.01 - EP US); C23C 2/022 (2022.08 - EP US); C23C 2/0222 (2022.08 - KR); C23C 2/0224 (2022.08 - EP KR US); C23C 2/024 (2022.08 - EP US); C23C 2/06 (2013.01 - EP KR US); C23C 2/12 (2013.01 - EP US); C23C 2/26 (2013.01 - EP US); C23C 2/28 (2013.01 - KR); C23C 2/40 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2008022980A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
US 2010065160 A1 20100318; US 8394213 B2 20130312; AT E486974 T1 20101115; AU 2007287602 A1 20080228; AU 2007287602 B2 20101125; CA 2660398 A1 20080228; CA 2660398 C 20131105; CN 101506403 A 20090812; CN 101506403 B 20111228; DE 102006039307 B3 20080221; DE 502007005570 D1 20101216; EP 2054536 A2 20090506; EP 2054536 B1 20101103; ES 2353438 T3 20110302; JP 2010501725 A 20100121; KR 101463221 B1 20141119; KR 20090040349 A 20090423; PL 2054536 T3 20110429; WO 2008022980 A2 20080228; WO 2008022980 A3 20081030
DOCDB simple family (application)
US 37732307 A 20070820; AT 07802701 T 20070820; AU 2007287602 A 20070820; CA 2660398 A 20070820; CN 200780031006 A 20070820; DE 102006039307 A 20060822; DE 502007005570 T 20070820; EP 07802701 A 20070820; EP 2007058602 W 20070820; ES 07802701 T 20070820; JP 2009525041 A 20070820; KR 20097003603 A 20070820; PL 07802701 T 20070820