| 摘要 |
PURPOSE:To improve the wear resistance of a conventional sliding contact material consisting of Pt, Pd, Ag and Cu by adding specified amounts of Sb and one or more among In, Ti, Tl and Zr to the contact material. CONSTITUTION:An alloy material having a composition consisting of, by weight, 0.1-1% Pt, 42-44% Pd, 39-41% Ag and 15.5-17.5% Cu has been widely used up to now as a sliding contact material, especially as a material for a brush contact. A brush contact of the alloy material shows, however, inferior wear resistance during sliding along a commutator and causes the generation of noise. In order to improve the wear resistance, 1-10% Sb and 0.3-3% one or more among In, Ti, Tl and Zr are added to the alloy material without changing the ratio in the composition. 0.01-0.5% Fe group metal may be further added. |
