PHENOLIC RESIN MOLDING MATERIAL FOR MOLDED COMMUTATOR AND MOLDED COMMUTATOR

摘要

PROBLEM TO BE SOLVED: To provide a phenolic resin molding material for a molded commutator which can be used to obtain a molded commutator preventing that the operation of a motor becomes impossible by unexpected fracture even if it happens that the motor is driven at high rotational speed for a long period of time by abnormal operation or the like. SOLUTION: The phenolic resin molding material for the molded commutator contains a phenolic resin, glass fibers and an elastomer component, wherein the elastomer component is acrylonitrile-butadiene rubber having an acrylonitrile content of≥36 mol%. COPYRIGHT: (C)2009,JPO&INPIT