Patent ID: 6673168
Filing Date: 2004-01-06
Classification: C22C

Abstract:
An aluminum-based material for anti-friction bearings, the material consisting essentially of:an aluminum alloy with 10-25 wt % tin; impurity-caused components, the impurity-caused components characterized by 0.8-1.2 wt % iron and; an alloy additive capable of forming an intermetallic compound having a spherical phase homogeneously distributed in the aluminum alloy, the alloy additive selected from the group consisting of: a) manganese and silicon, wherein the individual weight percentage fractions of manganese and silicon are at least half the weight percentage fraction of the iron and for manganese, 0.4-0.6 wt %, and for silicon, 0.4-0.6 wt %; b) 0.1-0.5 wt % cobalt; and c) 0.1-0.5 wt % molybdenum; wherein the intermetallic compound formed by the alloy additive is at least one of iron-manganese-aluminum-silicon complexes, iron-cobalt mixed aluminides and iron molybdenum-mixed aluminides.