Copper-based sintered alloy bearing and motor fuel pump
AssigneesMitsubishi Materials Corporation, Denso Corporation
InventorsNoboru Kanezaki, Tsuneo Murayama, Yoshio Ebihara
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Abstract
The Cu-based sintered alloy bearing of the present invention is made of a Cu-based sintered alloy with a composition consisting of, by weight, Ni: 10 to 25%, Zn: 10 to 25%, P: 0.1 to 0.9%, C: 0 to 5%, molybdenum disulfide: 0.5 to 5%, and Cu and inevitable impurities as the balance. The Cu-based sintered alloy has a texture from a Cu—P compound, free graphite, and molybdenum disulfide being dispersed in a base material made of a solid solution phase of a Cu—Ni—Zn alloy, and a porosity is within a range of 5 to 25%.
Claims9
A Cu-based sintered alloy bearing made of a Cu-based sintered alloy with a composition consisting of, by weight,
- Ni:
- 10 to 25%,
- Zn:
- 10 to 25%,
- P:
- 0.1 to 0.9%,
- molybdenum disulfide:
- 0.5 to 5%, and
- Cu and inevitable impurities as the balance,
- the Cu-based sintered alloy having a texture from a Cu—P compound and molybdenum disulfide being dispersed in a base material made of a solid solution phase of a Cu—Ni—Zn alloy, and a porosity is within a range of 5 to 25%.
A Cu-based sintered alloy bearing made of a Cu-based sintered alloy with a composition consisting of, by weight,
- Ni:
- 10 to 25%,
- Zn:
- 10 to 25%,
- P:
- 0.1 to 0.9%,
- C:
- 5% or less,
- molybdenum disulfide:
- 0.5 to 5%, and
- Cu and inevitable impurities as the balance,
- the Cu-based sintered alloy having a texture from a Cu—P compound, free graphite, and molybdenum disulfide being dispersed in a base material made of a solid solution phase of a Cu—Ni—Zn alloy, and a porosity is within a range of 5 to 25%.
Dependencies are inferred from the claim text.