Composite multilayer material for plain bearings

US6492039B2 · kind B2 · utility

Assignee

• Federal-Mogul Wiesbaden GmbH & Co. KG · DE

Inventors

• Hans-Ulrich Huhn · Schlangenbad, DE
• Peter Spahn · Darmstadt, DE
• Dietmar Wiebach · Wiesbaden, DE
• Achim Adam · Nauheim, DE
• Fritz Niegel · Oestrich-Winkel, DE

Key dates

• Filing date: Dec 26, 2000
• Grant date: Dec 10, 2002
• Expiry date: Dec 26, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1291
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A composite multilayer material is described, which exhibits a relatively high specific load carrying capacity and relatively low wear. The composite multilayer material for plain bearings comprises a backing layer, a bearing metallayer (1), a first intermediate layer (2) of nickel, a second intermediate layer (3) of tin and nickel together with an overlay (4) consisting of copper and tin. The overlay (4) comprises a tin matrix (5), into which tin-copper particles (6) are incorporated, which consist of 39 to 55 wt. % copper, the rest being tin. At high temperatures, as occur in the case of plain bearings used in internal combustion engines, the tin migrates into the second intermediate layer (3) therebelow, resulting in concentration of the tin-copper particles (6).