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AssigneeKomatsu Ltd.
InventorsTakemori Takayama, Tetsuo Ohnishi, Kazuo Okamura
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To provide a thermal spray membrane contact material, contact member and contact part and an apparatus to which they are applied, showing excellent seizure resistance and wear resistance even under high surface pressure/low speed sliding, high speed/high temperature sliding, or high surface pressure/high speed sliding. In a bucket connecting apparatus connecting an arm and a bucket by a work implement connecting pin, the above-mentioned work implement connecting pin comprises a base material made of steel having an axis function and a contact surface formed of a thermal spray membrane contact material film-formed on the base material, said contact surface being placed at least on a supported surface site of the work implement connecting pin relative to a bracket and on a slipping contact surface with a work implement bushing, further, said thermal spray membrane contact material being composed of a Mo metal phase, or 10 vol % or more of a Mo metal phase and a metal phase and/or alloy phase containing one or more elements selected from the group consisting of Fe, Ni, Co, Cr, Cu and Zn.
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a Fe-base alloy containing 0.8 wt % or less of C and 10 to 40 wt % of Cu, further, containing one or more elements selected from the group consisting of Mn, Ni, Cr and Mo in an amount of 5 wt % or less.
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a Fe-base alloy containing at least 2 to 16 wt % of Al forming a Fe3Al ordered phase, and containing one or more elements selected from the group consisting of 10 to 40 wt % of Cu, 0.8 wt % or less of C, 30 wt % or less of (Ni+Co), 1.5 wt % or less of P and 5 wt % or less of (Mn+Cr+Mo).
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a bronze-base alloy containing 5 to 15 wt % of Sn, or containing 5 to 15 wt % of Sn and further containing one or more elements selected from the group consisting of P, Pb, Ti, Ni, Si, Al, Mn, Fe and Zn in an amount of 10 wt % or less.
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a Cu-base alloy containing 2 to 10 wt % of Sn and 2 to 14 wt % of Al, further containing one or more elements selected from the group consisting of Si, Fe, Ni, Co, Mn, Ti, P and Zn in an amount of 10 wt % or less, and containing a Cu—Al-based beta phase in its structure.
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a Cu—Zn-base alloy containing 10 to 35 wt % of Zn, and further containing one or more elements selected from the group consisting of Al, Si, Fe, Ni, Co and Mn in an amount of 10 wt % or less.
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising Cu—Zn-base alloy containing 35 to 65 wt % of Zn, further containing one or more elements selected from the group consisting of Al, Si, Fe, Ni, Co and Mn in an amount of 10 wt % or less, and containing a Cu—Zn-based beta phase and/or gamma phase in its structure.
A thermal spray membrane contact material comprising
A thermal spray membrane contact material, comprising 5 wt % or more Mo metal phase, and the balance comprising a Zn-based alloy containing one or more elements selected from the group consisting of Al, Cu, Mg, Sn, Sb, Ti, Fe and Ni in an amount of 30 wt % or less.
Dependencies are inferred from the claim text.