US 7,255,933 B2 · Multi-layer sliding part and a method for its manufacture

Abstract

A multi-layer sliding part is prepared by a process including mixing 1–50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5–20 mass % of Sn and a remainder of Cu to form a mixed powder, sintering the mixed powder in a reducing atmosphere to form a sintered mass, pulverizing the sintered mass to form a powder, dispersing the powder formed by pulverizing on a metal backing plate, and sintering the dispersed powder to bond grains of the dispersed powder to each other and to the backing plate. After sintering of the pulverized powder to form bearing metal layer, the bearing metal layer is pressed and densified. After densification, the bearing metal layer is annealed, again pressed, and then coated with a resin having good sliding properties.

Claims20

Dependent claims

A multi-layer sliding part prepared by a method comprising mixing 1-50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of an alloy powder consisting of 5-20 mass % of Sn and a remainder of Cu to form a mixed powder, sintering the mixed powder to form a sintered mass, pulverizing the sintered mass to form a powder, dispersing the powder formed by pulverizing on a metal backing plate, sintering the dispersed powder to bond grains of the dispersed powder to each other and to the backing plate to form a bearing metal layer, densifying the bearing metal layer, and coating the surface of the bearing metal layer with a resin having good sliding properties to form a resin coating.

Dependencies are inferred from the claim text.

Multi-layer sliding part and a method for its manufacture

Life of this patent

Multi-layer sliding part and a method for its manufacture

Life of this patent

Abstract

Claims20