Global Patent Index - EP 4192993 A1

EP 4192993 A1 20230614 - METHOD FOR PRODUCING COATED STEEL STRIP, AND METHOD FOR PRODUCING A HARDENED STEEL PRODUCT THEREFROM

Title (en)

METHOD FOR PRODUCING COATED STEEL STRIP, AND METHOD FOR PRODUCING A HARDENED STEEL PRODUCT THEREFROM

Title (de)

VERFAHREN ZUM HERSTELLEN VON BESCHICHTETEM STAHLBAND, UND VERFAHREN ZUM HERSTELLEN EINES GEHÄRTETEN STAHLPRODUKTS DARAUS

Title (fr)

PROCÉDÉ DE PRODUCTION D'UNE BANDE D'ACIER REVÊTUE, ET PROCÉDÉ DE PRODUCTION D'UN PRODUIT D'ACIER TREMPÉ À PARTIR DE CELLE-CI

Publication

EP 4192993 A1 20230614 (DE)

Application

EP 21759035 A 20210730

Priority

  • DE 102020120580 A 20200804
  • EP 2021071425 W 20210730

Abstract (en)

[origin: WO2022029033A1] The invention relates to a method for producing coated steel strip, comprising: heating a steel strip (2) made of a hardenable steel to a strip target temperature (T3) of less than 625°C, and hot-dip coating the steel strip (2), heated to the strip target temperature (T3), in a melt (4) which contains at least aluminium and silicon, wherein the melt (4) has a temperature (T4) of less than 620°C. The invention also relates to a method for producing a hardened steel product from the specified method and to a hot-formed part (42) produced therefrom.

IPC 8 full level

C22C 38/02 (2006.01); C21D 1/18 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C23C 2/02 (2006.01); C23C 2/12 (2006.01); C23C 2/26 (2006.01); C23C 2/40 (2006.01)

CPC (source: EP US)

C21D 1/18 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP); C22C 38/28 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C23C 2/004 (2022.08 - EP US); C23C 2/02 (2013.01 - EP US); C23C 2/022 (2022.08 - EP US); C23C 2/024 (2022.08 - EP US); C23C 2/12 (2013.01 - EP); C23C 2/26 (2013.01 - EP US); C23C 2/40 (2013.01 - EP); C21D 2211/008 (2013.01 - EP)

Citation (search report)

See references of WO 2022029033A1

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

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

DE 102020120580 A1 20220210; EP 4192993 A1 20230614; WO 2022029033 A1 20220210

DOCDB simple family (application)

DE 102020120580 A 20200804; EP 2021071425 W 20210730; EP 21759035 A 20210730