摘要 |
PURPOSE:To obtain a sliding contact material preventing welding with oxides which are produced during sliding and having improved wear resistance by adding a small amount of one or more among Al, Ga, Mn, Ni, Ge and Si to a Pd-Ru alloy having a specified composition. CONSTITUTION:This sliding contact material is obtd. by adding 0.5-15wt% one or more among Al, Ga, Mn, Ni, Ge and Si to an alloy material consisting of 87-93wt% Pd and 7-13wt% Ru without changing the ratio in the composition. Oxides of one or more among Al, Ga, Mn, Ni, Ge and Si are produced in the sliding contact material during sliding, and the oxides prevent welding and improve the wear resistance. The contact material produces little powder owing to wear and hardly generates noise, so a brush contact having stable and low contact resistance can be obtd. |