| 摘要 |
Sliding element comprises a shaping carrier layer and a sliding layer, which is galvanically fixed on the carrier layer, where: the sliding layer is made of an alloy with the alloy components comprising 5-20 wt.% of antimony, 0.5-20 wt.% of copper, balanced quantity of tin, less than 0.7% of lead and less than 0.5 wt.% of other components, where the tin crystals are formed predominantly globular in the slide bearing layer. An independent claim is included for the preparation of a sliding element comprising electrolytically applying the sliding layer on the shaping carrier layer by using an electrolyte based on fluoroboric acid and metal fluoroborate in an aqueous solution, which contains tin ion (Sn 2> +>) (15-80 g/l), antimony ion (Sb 3> +>) (0.5-20 g/l), copper ion (Cu 2> +>) (0.05-10 g/l), tetrafluoroboric acid (20-200 g/l), wetting agent (0.05-5 g/l) and auxiliary materials, which are not obtained in the slide bearing layer, where the migration speed of the ions of the sliding layer forming elements is controlled with an auxiliary material based on its molecular size, in such a way that it develops globular tin crystals. |
