Back to results
US 8,557,396 B2Granted
Copper-alloy-based sliding material, and copper-alloy-based sliding member
AssigneeKomatsu Ltd.
InventorMasanori Ueyama
Life of this patent
Estimating the term…
Abstract
In the copper-alloy-based sliding material, alloy steel particles containing fine carbides are dispersed in a range of 1 to 20 wt % of the total weight into a Cu-based matrix containing 5 to 15 wt % of Sn, and the copper-alloy-based sliding material has a Vickers hardness in a range of 44 to 148 as a macro hardness.
Claims8
A copper-alloy-based sliding material comprising:
- a Cu-based matrix containing 5 to 15 wt % of Sn;
- and
- alloy steel particles dispersed in a range of 1 to 20 wt % of the total weight into the Cu-based matrix, the alloy steel particles having a Vickers hardness in a range of Hv 225-430,
- the alloy steel particles containing fine carbides having a Vickers hardness greater than Hv 1000,
- the copper-alloy-based sliding material including the Cu-based matrix, the alloy steel particles and the fine carbides having a Vickers hardness in a range of Hv 44 to 148 as a macro hardness,
- the Cu-based matrix, the alloy steel particles, and the fine carbides forming a structure in which the Cu-based matrix contains the alloy steel particles each of which contains the fine carbides.
3 more elements
A copper-alloy-based sliding member comprising:
- a steel plate;
- and
- a copper-alloy-based sliding sintered layer formed on the steel plate and sintered and bonded using a mixed powder, with the mixed powder being a powder obtained by mixing 1 to 20 wt % of an alloy steel powder containing fine carbides of the total weight into a Cu alloy powder containing 5 to 15 wt % of Sn, the alloy steel powder having a Vickers hardness in a range of Hv 225 to 430, the fine carbides having a Vickers hardness greater than Hv 1000,
- the Cu alloy powder, the alloy steel powder, and the fine carbides forming the copper-alloy-based sliding sintered layer in which the Cu alloy powder contains the alloy steel powder which contains the fine carbides.
1 more element
Dependencies are inferred from the claim text.