Other

Kurimoto, Ltd.

Akashi Gohdoh Inc.

Shiga Valve Cooperative

Biwalite Co., Ltd.

Toru Maruyama

Takeshi Kobayashi

Tomohiro Sato

Yoshimasa Hirai

Katsuyuki Funaki

Toshimitu Okane

Iwao Akashi

Ryozo Matsubayashi

Hiroyuki Abe

Masakazu Teramura

Toshimitsu Okane

A copper alloy having excellent sliding performance is produced without relying on lead or molybdenum. The copper alloy contains a sintered CuFeSmaterial produced by sintering a raw material powder that comprises Cu, Fe and S and is produced by a gas atomizing method.

Copper alloy for sliding materials

A bronze alloy includes copper, tin, bismuth, nickel and sulfur and a metal structure of the bronze alloy has an eutectoid phase including &#x3b1;-copper having a lamellar structure including a flaky copper-tin intermetallic compound precipitated and metal particles including the bismuth dispersedly precipitated therein.

Bronze alloy, process for producing the same, and sliding member comprising bronze alloy

Disclosed is a lead-free copper alloy for casting which contains 0.1-0.7% of S, 8% or less (excluding 0%) of Sn, and 6% or less (excluding 0%) of Zn, and in which a sulfide is dispersed and the average spheroidization ratio of the sulfide is 0.7 or greater. Due to this constitution, said lead-free copper alloy for casting has excellent mechanical properties such as strength, high pressure resistance and good machinability and, therefore, is useful as a starting material for faucet metal fittings, water faucet and so on, even though the alloy contains no lead which causes deterioration of water.

Lead-free copper alloy for casting with excellent mechanical properties

Growing community of inventors

Suita, Japan

Toru Maruyama