Plain bearing composite material

US7601434B2 · kind B2 · utility

Assignee

• KS GLEITLAGER GMBH · DE

Inventors

• Werner Schubert · Wiesloch, DE
• Klaus Deicke · Untereisesheim, DE
• Thomas Steffens · Bad Rappenau, DE
• Bernd Mueller · Falkenberg, DE

Key dates

• Filing date: Jul 17, 2004
• Grant date: Oct 13, 2009
• Expiry date: Aug 8, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12757
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a plain bearing composite material comprising a steel carrier layer and a bearing coating which is applied to the carrier layer in such a way that it cannot be removed and consists of lead-free aluminium bearing alloy consisting of between 4.4 and 6 wt. % of zinc, between 2.5 and 6 wt % of bismuth, between 1 and 2 wt. % of silicon, between 0.8 and 1.2 wt. % of copper and between 0.2 and 0.8 wt. % of magnesium, optionally a maximum of 0.2 wt. % each of titanium, nickel, manganese, and tin, optionally a maximum of 0.6 wt. % of iron, and also optionally respectively a maximum of 0.1 wt. % of impurity related additives, the total quantity thereof not amounting to more than 1 wt. % of the sum of the constituents. The aluminium bearing alloy forms an aluminium solid solution supersaturated with zinc, said zinc being finely distributed by solution annealing and subsequent chilling.