Global Patent Index - EP 2128296 A1

EP 2128296 A1 20091202 - Method for galvannealing steel materials

Title (en)

Method for galvannealing steel materials

Title (de)

Verfahren für galvanisierte Stahlmaterialien

Title (fr)

Procédé de galvanisation de matériaux d'acier

Publication

EP 2128296 A1 20091202 (EN)

Application

EP 08164665 A 20080919

Priority

SE 0801224 A 20080526

Abstract (en)

Method for use when galvannealing a steel material (1), in which the material (1), in a first step, is preheated to a first process temperature and is coated with a layer of a liquid alloying metal (3), in a second step is further heated to a second, higher process temperature, and in a third step is kept at the second process temperature during a predetermined time period so that the alloying metal coating at least partially is caused to alloy with the steel material (1). The invention is characterised in that the heating in the second step is caused to be carried out by one or several DFI burners (5).

IPC 8 full level

C23C 2/28 (2006.01)

CPC (source: EP KR SE US)

C23C 2/28 (2013.01 - EP KR SE US); C23C 2/36 (2013.01 - SE); C23C 2/38 (2013.01 - KR SE); C23C 2/40 (2013.01 - KR SE)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 2128296 A1 20091202; BR PI0909599 A2 20150922; CN 102046830 A 20110504; KR 20110010814 A 20110207; SE 0801224 L 20091127; SE 532603 C2 20100302; US 2011146851 A1 20110623; WO 2009145705 A1 20091203

DOCDB simple family (application)

EP 08164665 A 20080919; BR PI0909599 A 20090519; CN 200980119290 A 20090519; KR 20107029019 A 20090519; SE 0801224 A 20080526; SE 2009050567 W 20090519; US 99459409 A 20090519