EP 3307926 A1 20180418 - METHOD FOR COATING A VALVE OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR COATING A VALVE OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUM BESCHICHTEN EINES VENTILS EINER BRENNKRAFTMASCHINE
Title (fr)
PROCÉDÉ DE REVÊTEMENT D'UNE SOUPAPE D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102015210552 A 20150609
- EP 2016059295 W 20160426
Abstract (en)
[origin: WO2016198205A1] The invention relates to a method for coating a valve (1) of an internal combustion engine (2), in particular a place on a valve stem (5) of the valve (1), in which - the valve (1) is immersed, at least at the place that is to be coated, in a bath of just nickel (Ni) as a bonding agent, - the valve (1) is immersed, at least with the place that is to be coated, in a bath comprising nickel (Ni) and boron carbide (B4C) or in a bath comprising nickel-tungsten (Ni-W) or nickel-iron (Ni-Fe) and boron carbide (B4C), - the valve (1) is reworked, at least at the place that is to be coated. This particularly allows a previously chromium-containing wear-resistant layer to be replaced.
IPC 8 full level
C25D 15/00 (2006.01); C23C 18/16 (2006.01); C23C 18/32 (2006.01); C23C 18/50 (2006.01); C25D 3/12 (2006.01); C25D 3/56 (2006.01); C25D 5/14 (2006.01); F01L 3/04 (2006.01)
CPC (source: EP US)
C23C 18/1651 (2013.01 - EP); C23C 18/1653 (2013.01 - EP); C23C 18/1662 (2013.01 - EP); C23C 18/32 (2013.01 - EP); C23C 18/50 (2013.01 - EP); C25D 3/12 (2013.01 - EP); C25D 3/562 (2013.01 - EP); C25D 5/14 (2013.01 - EP US); C25D 5/611 (2020.08 - EP US); C25D 15/00 (2013.01 - EP US); F01L 3/04 (2013.01 - EP); F01L 2301/00 (2020.05 - EP); F01L 2301/02 (2020.05 - EP); F01L 2303/00 (2020.05 - EP); F01L 2820/01 (2013.01 - EP)
Citation (search report)
See references of WO 2016198205A1
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 102015210552 A1 20161215; EP 3307926 A1 20180418; WO 2016198205 A1 20161215
DOCDB simple family (application)
DE 102015210552 A 20150609; EP 16718679 A 20160426; EP 2016059295 W 20160426