EP 3250727 A1 20171206 - COMPONENT MADE OF PRESS-FORM-HARDENED, ALUMINUM-BASED COATED STEEL SHEET, AND METHOD FOR PRODUCING SUCH A COMPONENT
Title (en)
COMPONENT MADE OF PRESS-FORM-HARDENED, ALUMINUM-BASED COATED STEEL SHEET, AND METHOD FOR PRODUCING SUCH A COMPONENT
Title (de)
BAUTEIL AUS PRESSFORMGEHÄRTETEM, AUF BASIS VON ALUMINIUM BESCHICHTETEM STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG EINES SOLCHEN BAUTEILS
Title (fr)
PIÈCE CONSTITUÉE DE TÔLE D'ACIER REVÊTUE À BASE D'ALUMINIUM DURCIE PAR MOULAGE PAR COMPRESSION ET PROCÉDÉ DE FABRICATION D'UNE TELLE PIÈCE
Publication
Application
Priority
- DE 102016107152 A 20160418
- EP 2017058918 W 20170413
Abstract (en)
[origin: WO2017182382A1] The invention relates to a component made of press-form-hardened, aluminium-based coated steel sheet, the coating having a covering which contains aluminum and silicon applied in the hot-dip process, characterized in that the press-form-hardened component in the transition region between steel sheet and covering has an inter-diffusion zone I, wherein, depending on the layer application of the covering before heating and press hardening, the thickness of the inter-diffusion zone I obeys the following formula: I [µm] < (1/35) x application on both sides [g/m2] + (19/7), on the inter-diffusion zone I there is formed a zone having various intermetallic phases having an average total thickness between 8 and 50 µm, on which zone there is in turn arranged a covering layer containing aluminum oxide and/or hydroxide having an average thickness of at least 0.05 µm to at most 5 µm. The invention further relates to a method for producing the aforementioned component.
IPC 8 full level
C23C 2/12 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C23C 8/02 (2006.01); C23C 8/10 (2006.01); C23C 8/80 (2006.01); C23C 28/00 (2006.01)
CPC (source: EP KR US)
C23C 2/12 (2013.01 - EP KR US); C23C 2/14 (2013.01 - KR); C23C 2/26 (2013.01 - EP US); C23C 2/261 (2022.08 - EP KR US); C23C 2/28 (2013.01 - EP US); C23C 2/29 (2022.08 - EP KR US); C23C 2/40 (2013.01 - EP KR US); C23C 8/02 (2013.01 - EP); C23C 8/10 (2013.01 - EP KR US); C23C 8/80 (2013.01 - EP KR US); C23C 28/321 (2013.01 - KR US); C23C 28/324 (2013.01 - EP KR); C23C 28/345 (2013.01 - EP KR US); Y10T 428/12757 (2015.01 - US)
Citation (search report)
See references of WO 2017182382A1
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 102016107152 A1 20171019; DE 102016107152 B4 20171109; CN 109477197 A 20190315; CN 109477197 B 20211026; EP 3250727 A1 20171206; EP 3250727 B1 20210707; EP 3250727 B2 20240117; KR 102189424 B1 20201211; KR 20190003502 A 20190109; RU 2704339 C1 20191028; US 11339479 B2 20220524; US 2020308708 A1 20201001; WO 2017182382 A1 20171026
DOCDB simple family (application)
DE 102016107152 A 20160418; CN 201780024316 A 20170413; EP 17721056 A 20170413; EP 2017058918 W 20170413; KR 20187030273 A 20170413; RU 2018136149 A 20170413; US 201716093466 A 20170413