Sliding element consisting of a copper-zinc alloy
AssigneeWieland-Werke AG
InventorsHans-Achim Kuhn, Susanne Böhme, Tobias Neubrand, Gerhard Thumm, Volker Voggeser
Life of this patent
Estimating the term…
Abstract
The invention relates to a sliding element consisting of a copper-zinc alloy containing the following components (in % by weight): 60.0 to 64.0% Cu, 0.2 to 0.5% Si, 0.6 to 1.2% Fe, optionally also up to a maximum 1.5% Sn, optionally also up to a maximum 0.25% Pb, optionally also up to a maximum 0.08% P, the remainder being Zn and unavoidable impurities. The copper-zinc alloy has a grain structure consisting of an α- and β-phase with a volume content of the α-Phase of at least 90%, and iron silicides are embedded in the grain structure.
Claims7
A sliding element composed of a copper-zinc alloy comprising:
- from 60.0 to 64.0% by weight of Cu,
- from 0.2 to 0.5% by weight of Si,
- from 0.6 to 1.2% by weight of Fe,
- optionally up to a maximum of 1.5% by weight of Sn,
- optionally up to a maximum of 0.25% by weight of Pb,
- optionally up to a maximum of 0.08% by weight of P,
- the balance being Zn and unavoidable impurities,
- the copper-zinc alloy having a microstructure comprising a matrix and iron silicides being embedded in the matrix, wherein the matrix comprises α and β phase, and wherein the microstructure has at least 90% by volume of the α phase.
Dependencies are inferred from the claim text.