Sliding element having adjustable properties
AssigneeFederal-Mogul Burscheid GmbH
InventorsMarcus Kennedy, Michael Zinnabold, Marc-Manuel Matz
Life of this patent
Estimating the term…
Abstract
A sliding element, particularly a piston ring for an internal combustion engine, includes a substrate, and a wear-protection layer, obtained by thermal spraying of a powder comprising the element proportions 2-50 percent by weight iron, FE; 5-60 percent by weight tungsten, W; 5-40 percent by weight chrome, Cr; 5-25 percent by weight nickel, Ni; 1-5 percent by weight molybdenum, Mo; 1-10 carbon, C and 0.1-2 percent by weight silicon, Si; and a running-in layer, obtained by thermal spraying of a powder comprising the element proportions 60-95 percent by weight nickel; 5-40 percent by weight carbon.
Claims17
A sliding element for an internal combustion engine, comprising
- a substrate and
- a wear-protection layer, obtained by thermal spraying of a powder comprising the element proportions
- 11.4-23.9 percent by weight iron, FE;
- 22.5-33.8 percent by weight tungsten, W;
- 33.2-34.8 percent by weight chrome, Cr;
- 11.7-12.4 percent by weight nickel, Ni;
- 2.3-2.6 percent by weight molybdenum, Mo;
- 4.9-5.7 percent by weight carbon, C and
- 0.3-0.5 percent by weight silicon, Si;
- 40-60 percent by weight carbides;
- and
- a running-in layer, obtained by thermal spraying of a powder comprising the element proportions
- 90 percent by weight nickel;
- 10 percent by weight carbon.
Dependencies are inferred from the claim text.