CURRENT COLLECTING PANTOGRAPH SHOE MATERIAL MADE OF IRON-BASE SINTERED ALLOY IMPREGNATED WITH LEAD, EXCELLENT IN ELECTRIC CONDUCTIVITY AND WEAR RESISTANCE

摘要

PURPOSE: To provide a current collecting pantograph shoe material made of Fe-base sintered alloy impregnated with lead, excellent in electric conductivity and wear resistance. ;CONSTITUTION: The current collecting pantograph shoe material is formed by impregnating Pb or Pb alloy into an Fe-base sintered alloy which has a composition consisting of, by weight, 5-30% of TiB₂ and/or ZrB₂ as dispersed phase forming component, 0.1-7% of one or more elements among Ni, Cu, and Mn as matrix forming components, and the balance Fe with inevitable impurities and further containing, if necessary, either or both of 0.05-3% Cr and/or Mo and 0.05-0.5% C and also has 5-15% porosity.;COPYRIGHT: (C)1996,JPO