| 摘要 |
In the present invention, there is disclosed a composite multilayer material for plain bearings comprising a backing layer, a bearing metal layer (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 particles consist of 39 to 55 percent by weight of 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). |
