EP 1670964 A2 20060621 - Method of manufacturing of valve seat rings made from Co/Mo based alloys
Title (en)
Method of manufacturing of valve seat rings made from Co/Mo based alloys
Title (de)
Verfahren zur Herstellung von Ventilsitzringen aus Co/Mo-Basislegierungen
Title (fr)
Procédé de fabrication des sièges de soupape en alliages à base de Co/Mo
Publication
Application
Priority
- EP 2004008137 W 20040721
- DE 10334703 A 20030730
Abstract (en)
[origin: WO2005012590A2] Disclosed is a cylinder head for internal combustion engines, comprising a metallic valve seat ring that is formed by a thermally sprayed homogeneous layer made of a basic Co or Co/Mo alloy. The sum of the Co content and Mo content in the alloy exceeds 50 percent by weight while the Fe content lies below 5 percent by weight. Also disclosed is a method for thermally spraying said valve seat ring by means of an arc wire spraying process with the aid of at least two filler wires and/or composite wires, the essential Co portion in the deposited layer being delivered by the jacket of the filler wire and/or the matrix of the composite wire.
IPC 1-7
IPC 8 full level
B23K 9/04 (2006.01); C23C 4/04 (2006.01); C23C 4/06 (2006.01); C23C 4/08 (2006.01); C23C 4/12 (2006.01); B23K 35/02 (2006.01); B23K 35/30 (2006.01)
CPC (source: EP US)
B23K 9/046 (2013.01 - EP US); B23K 9/048 (2013.01 - EP US); C23C 4/04 (2013.01 - EP US); C23C 4/06 (2013.01 - EP US); C23C 4/08 (2013.01 - EP US); C23C 4/131 (2016.01 - EP US); B23K 35/0266 (2013.01 - EP US); B23K 35/3046 (2013.01 - EP US); B23K 2101/006 (2018.07 - EP US); F01L 3/02 (2013.01 - EP US); F01L 3/04 (2013.01 - EP US); F01L 2301/00 (2020.05 - EP US); F01L 2301/02 (2020.05 - EP US); F01L 2303/00 (2020.05 - EP US); Y10T 29/49298 (2015.01 - EP US)
Citation (search report)
See references of WO 2005012590A2
Citation (examination)
JP H01138095 A 19890530 - SUMITOMO METAL IND
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005012590 A2 20050210; WO 2005012590 A3 20050324; DE 10334703 A1 20050224; EP 1670964 A2 20060621; JP 2007533842 A 20071122; US 2007193546 A1 20070823; US 7401586 B2 20080722
DOCDB simple family (application)
EP 2004008137 W 20040721; DE 10334703 A 20030730; EP 04741186 A 20040721; JP 2006521471 A 20040721; US 56662404 A 20040721