EP 1743053 A2 20070117 - METHOD FOR PRODUCTION OF A COATING
Title (en)
METHOD FOR PRODUCTION OF A COATING
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER BESCHICHTUNG
Title (fr)
PROCEDE DE PRODUCTION D'UN REVETEMENT
Publication
Application
Priority
- DE 2005000811 W 20050502
- DE 102004021926 A 20040504
Abstract (en)
[origin: WO2005108651A2] The invention relates to a method for production of a corrosion-resistant and/or oxidation-resistant coating, whereby at least one metal of the platinum group, in particular, platinum and/or palladium, or an alloy made from at least one metal of the platinum group, is deposited on the surface of a substrate by galvanisation and, subsequently, the substrate thus galvanically coated is subjected to an alitising process. In a first embodiment of the invention, the galvanic deposition of the metal(s) of the platinum group, or the corresponding alloy, is carried out in an at least two-stage process, whereby in a first stage of the deposition process, a current, applied for galvanisation, is continuously or incrementally increased from an initial value to a maximum value and, in a second stage of the deposition process, the current applied for galvanisation, is held constant at the maximum value. In a second embodiment of the invention, the galvanic deposition of the metal(s) of the platinum group or the corresponding alloy, is carried out using an open-celled, open-mesh or porous anode, whereby, during the galvanic deposition, a relative movement is established between a galvanic bath and the substrate and the open-celled, open-mesh or porous anode(s). An embodiment in which both aspects of the invention are combined is preferred.
IPC 8 full level
C25D 3/50 (2006.01); C23C 10/02 (2006.01); C25D 5/04 (2006.01); C25D 5/08 (2006.01); C25D 5/18 (2006.01); C25D 17/10 (2006.01)
CPC (source: EP US)
C23C 10/02 (2013.01 - EP US); C25D 3/50 (2013.01 - EP US); C25D 5/04 (2013.01 - EP US); C25D 5/08 (2013.01 - EP US); C25D 5/18 (2013.01 - EP US); C25D 17/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2005108651A2
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
WO 2005108651 A2 20051117; WO 2005108651 A3 20070322; DE 102004021926 A1 20051201; EP 1743053 A2 20070117; EP 1743053 B1 20120829; US 2008035486 A1 20080214; US 7771578 B2 20100810
DOCDB simple family (application)
DE 2005000811 W 20050502; DE 102004021926 A 20040504; EP 05747427 A 20050502; US 57972107 A 20070124