Sliding component and method for producing the same
AssigneeKomatsu Ltd.
InventorsToshikazu MATSUYAMA, Masaharu AMANO, Yoshitaka SHIBATA
Life of this patent
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Abstract
A sliding component and its producing method are provided. The sliding component includes a base section made of steel or cast iron, and a sliding section having a sliding surface, made of copper alloy including hard particles, and joined to the base section. The hard particles in the sliding section are arranged such that those in a region including an outer periphery of the interface with the base section have their longitudinal directions coinciding with the directions along the outer periphery as compared to those in an inner peripheral side. This improves the durability of the sliding section in its region including the outer periphery of the interface with the base section.
Claims8
A sliding component, comprising:
- a base section made of steel or cast iron;
- and
- a sliding section having a sliding surface, made of copper alloy including hard particles arranged such that the hard particles in a region of the sliding section including an outer periphery of an interface with the base section have longitudinal directions coinciding with directions along the outer periphery as compared to the hard particles in an inner peripheral side of the sliding section, and joined to the base section.
A method for producing a sliding component, comprising the steps of:
- preparing a base member made of steel or cast iron and having a recessed portion formed therein, and a sliding member made of copper alloy including hard particles;
- and
- joining the base member and the sliding member,
- the step of joining the base member and the sliding member including steps of
- increasing temperatures of the base member and the sliding member by relatively rotating the sliding member with respect to the base member while relatively pressing the sliding member against the base member with at least a part of the sliding member being received in the recessed portion, and
- stopping the relative rotation of the sliding member with respect to the base member and cooling the base member and the sliding member with the members being pressed against each other.
Dependencies are inferred from the claim text.