カーボン繊維充てんポリアセタール歯車の水潤滑特性

抄録

For a polyacetal with high strength and rigidity, we should select a composite polyacetal filled with, for example, carbon fiber. However, this may not be true in the case when this kind of composite polyacetal is used in water. That is, it is considered that the sliding characteristics might decrease because water enters into the bonding space of carbon fibers and polyacetal and of carbon fibers with each other. In this study, operation tests of a polyacetal gear filled with carbon fiber in water and with water drops were examined and the wear of the gear and the change of the tooth profile were determined. By comparing these results with those of an unfilled polyacetal gear, we investigated the usefulness of polyacetal gears filled with carbon fiber in water or steamy environments.