摘要 |
PURPOSE:To obtain a sliding contact material with improved wear resistance and contact resistance characteristics by adding a specified amount of at least one among Cr, Mg, Zr and P to an alloy material consisting of specified percentages of Au, Pt, Ag, Cu and Zn to increase the softening temp. CONSTITUTION:To an alloy material consisting of, by weight, 70.5-72.5% Au, 7.5-9.5% Pt, 3.5-5.5% Ag, 13.5-15.5% Cu and 0.5-1.5% Zn is added 0.5- 15wt% at least one among Cr, Mg, Zr and P without changing the ratio in the composition. A brush contact having superior wear resistance, producing little powder owing to wear, and generating hardly any noise is obtd. The brush contact has stable contact resistance. |