METHOD FOR PRODUCING COMPOSITION FOR ELECTRICAL MACHINE BRUSHES Russian patent published in 2005 - IPC

FIELD: electrical engineering; compositions for electrical machine brushes.

SUBSTANCE: proposed method for producing composition for brushes of motors and generators handling sharply defined nonuniform current load includes following procedures: working mass is processed in double-screw mixer for 30-45 s at specific power consumption of 0.08-0.12 kW-h/kg; mass obtained is cooled down at room temperature, crushed to particle size not over 3 mm, crushed mass is mixed up by means of double-screw mixer for 10-20 s at specific power consumption of 0.14-0.18 s, whereupon it is milled, compressed to form blocks, and subjected to heat treatment.

EFFECT: enhanced density and switching capacity of material.

1 cl