EP 3303641 B1 20200617 - METHOD FOR THE HOT FORMING OF A STEEL COMPONENT
Title (en)
METHOD FOR THE HOT FORMING OF A STEEL COMPONENT
Title (de)
VERFAHREN ZUR WARMUMFORMUNG EINES STAHLBAUTEILS
Title (fr)
PROCÉDÉ DE FORMAGE À CHAUD D'UN ÉLÉMENT EN ACIER
Publication
Application
Priority
- DE 102015210459 A 20150608
- EP 2016058226 W 20160414
Abstract (en)
[origin: WO2016198186A1] The invention relates to a method for the hot forming of a steel component (1). The steel component is heated into a range of complete or partial austenitization in a heat treatment step (II). The heated steel component (1) is both hot-formed and quench-hardened in a forming step (III). A first pre-treatment step (Ia) precedes the heat treatment step (II) in terms of process, in which first pre-treatment step the steel component (1) is provided with a corrosion-resistant protective layer (15) in order to protect against scaling in the heat treatment step (II). According to the invention, before the heat treatment step (II) is performed, a surface oxidation process occurs in a second pre-treatment step (Ib), in which surface oxidation process a weakly reactive, corrosion-resistant oxidation layer (17) is formed on the scale protection layer (15), by means of which oxidation layer abrasive tool wear is reduced in the forming step (III).
IPC 8 full level
C21D 8/04 (2006.01); C21D 8/02 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 28/00 (2006.01)
CPC (source: CN EP KR US)
C21D 1/673 (2013.01 - CN EP KR); C21D 7/13 (2013.01 - CN EP KR); C21D 8/0278 (2013.01 - CN EP KR US); C21D 8/0478 (2013.01 - CN); C23C 2/12 (2013.01 - KR); C23C 2/26 (2013.01 - CN EP US); C23C 2/261 (2022.08 - KR); C23C 2/28 (2013.01 - CN EP US); C23C 2/29 (2022.08 - CN EP KR US); C23C 28/321 (2013.01 - CN EP KR US); C23C 28/345 (2013.01 - CN EP KR US); C21D 1/673 (2013.01 - US); C21D 7/13 (2013.01 - US); C21D 8/0478 (2013.01 - EP US)
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)
DE 102015210459 A1 20161208; DE 102015210459 B4 20210304; CN 107667182 A 20180206; CN 107667182 B 20190604; EP 3303641 A1 20180411; EP 3303641 B1 20200617; ES 2815657 T3 20210330; KR 102071920 B1 20200203; KR 20180017086 A 20180220; US 10900110 B2 20210126; US 2018100224 A1 20180412; WO 2016198186 A1 20161215
DOCDB simple family (application)
DE 102015210459 A 20150608; CN 201680033300 A 20160414; EP 16718628 A 20160414; EP 2016058226 W 20160414; ES 16718628 T 20160414; KR 20187000418 A 20160414; US 201715836408 A 20171208