Manufacturing method for sliding contact for medium and high current

摘要

The process involves warm premixing graphite and plastic binder and cold mixing the resulting premixture with copper. The resulting main mixture is pressed into a sliding contact piece and sintered. During the premixing of graphite and plastic binder, a metal is selected from the group consisting of zinc, tin, and bismuth to add an alloy of the combination. An Independent claim is also included for a sliding contact piece.