Patent ID: 11959404
Assignee: MAHLE INTERNATIONAL GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A layer-sintered valve seat ring, comprising:
at least two materials, wherein one material is a function material for a tribological contact with an opposite runner and another material is a support material for the function material,
wherein the support material includes:
C: 0.5 to 1.8% by weight;
Cr: 3 to 16% by weight;
Mo: 1 to 5% by weight;
W: 0.5 to 5.5% by weight;
V: 0.4 to 4.0% by weight;
Cu: 12 to 25% by weight;
Fe: 41.3 to 82.6% by weight;
Mn: up to 0.6% by weight;
Si: up to 1.8% by weight;
wherein a remainder of the support material is production-related contaminations in the form of at least one of Ni, Co, Ca, P and S that are present in contents of <0.3% by weight each.