Use of a copper-aluminium alloy with defined coatings as bearings material for the fabrication of wear resistant sliding bearings

摘要

Use of a copper-aluminum alloy comprising 0.01-20% aluminum, up to maximum 20% iron, cobalt, manganese, nickel, silicon or tin, up to 45% zinc, and a balance of copper and impurities as bearing material in the manufacture of wear resistant sliding bearings is new. Preferred Features: The alloy contains 5-16%, 9-11% or 14-16% aluminum (Al). The alloy has a covering layer with a thickness of 10 nm to 10 mu m. The covering layer is produced by annealing at 400-800 degrees C for 0.5-10 hours in a gas atmosphere having a low oxygen partial pressure.