Patent ID: 6875290
Filing Date: 2005-04-05
Classification: B32B,C22C,F16C

Abstract:
1. An aluminum bearing-alloy consisting of 1.5 to 8 mass % of Si, 3 to 40 mass % of Sn, at least one element selected from the group consisting of Cu, Zn and Mg in a total amount of not more than 6 mass %, at least one element selected from the group consisting of Mn, V, Mo, Cr, Ni, Co and W in a total amount of not more than 3 mass %, and the balance thereof is substantially aluminum, and wherein said alloy has observed Si grains on a sliding surface of the aluminum bearing-alloy, wherein a fractional area of the observed Si grains having a grain size of less than 4 μm is 20 to 60% of the total area of all the observed Si grains, and another fractional area of the observed Si grains having a grain size of from 4 to 20 μm is not less than 40% of the total area of all the observed Si grains, and wherein the above distribution of Si grains is achieved by subjecting a cast plate made of the aluminum bearing-alloy to annealing and subsequent rolling.