Metal-graphite brush and production method thereof

摘要

Silver (Ag) particles produced by chemical reduction and having a mean particle size of 5 mu m are added by 0.05 - 3 wt % and zinc (Zn) are added by 2 - 10 wt % to a lead (Pb)-less brush body containing graphite, copper (Cu) and a metal sulfide solid lubricant of a metal-graphite brush.