| 摘要 |
PURPOSE:To provide a titled material by adding Cd, W, V, Mo, etc. at a specific ratio into Ag thereby suppressing the adhesion characteristic of an Ag-Cd alloy, improving wear resistance and stabilizing contact resistance to a low level. CONSTITUTION:A sliding contact point material is formed by adding 0.5-15wt% Cd and 0.1-2% >=1 kinds among W, V and Mo into Ag and substituting part of said Cd with an Fe group element in a 0.01-0.5% range according to need to improve the wear resistance of an Ag-Cd alloy and to prevent generation of noise owing to abrasive wear. The contact resistance thereof is stabilized at a low level by suppressing generation of an oxide. Cd in the above-mentioned material improves the wear resistance of Ag but the effect does not appear at the lower limit or below and the contact resistance is high and unstable at the upper limit or above. W, V, Mo, etc. improve the wear resistance in the above-mentioned addition range but alloying is difficult above the upper limit. The Fe group element contributes to the formation of the finer grains of the crystal and the additionally improved wear resistance. |
