Senju Metal Industry Co., Ltd.

Toshio Hakuto

Naoki Sato

Sinzo Nakamura

Ryoichi Suzuki

Yuji Kawamata

Issaku Sato

Takashi Akagawa

Takashi Saito

Hajime Kato

Tadashi Oshima

A sliding member includes a metal substrate and a sliding layer formed on one surface of the metal substrate. The sliding layer has a matrix phase containing Cu and Sn and hard particles dispersed in the matrix phase and containing a Laves phase constituted of a composition of Co, Mo and Si.

Sliding member, bearing, sliding member manufacturing method, and bearing manufacturing method

A sliding material has a sintered layer formed atop a backing plate. The sintered layer contains 5-15 mass % of Bi nonuniformly distributed in a Cu&#x2014;Sn alloy matrix consisting essentially of 8-12 mass % of Sn and a remainder of Cu. The sliding material can be manufactured by nonuniformly mixing Cu&#x2014;Sn alloy powder and Bi powder, dispersing the mixed powder on a backing plate, and sintering the mixed powder to form a sintered layer on the backing plate. The sliding material does not undergo seizing and does not have separation of the sintered layer from the backing plate even when used in severe conditions such as in hydraulic equipment or construction equipment.

Sliding material and a method for its manufacture

A conventional Bi-containing sliding material sometimes underwent seizing in a sliding part operating at a high rotational speed. The present invention provides a sliding material which does not undergo seizing in a sliding part operating at a high rotational speed and a method for its manufacture. A low melting point alloy containing at least 20 mass % of Bi and having a liquidus temperature of at most 200&#xb0; C. is made to penetrate into a porous portion comprising a Cu&#x2014;Sn based alloy. A Bi&#x2014;Sn based alloy or a Bi&#x2014;In based alloy is suitable as the low melting point alloy. After a low melting point alloy paste is applied to a porous portion, the low melting point alloy is melted and made to penetrate into the porous portion.

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Tochigi, Japan

Toshio Hakuto