BONDED MAGNET AND MOTOR

摘要

This bonded magnet contains a magnet powder (2), a resin component (5) and a surface modifying agent (1). In particular, the surface modifying agent (1) is composed of a magnet powder adsorption part that is adsorbed onto the magnet powder (2) and a resin compatible part that is compatible with the resin component (5). Specifically, the magnet powder adsorption part is a phosphoric acid-based adsorption part. Meanwhile, the resin compatible part is a polyester-based compatible part. In cases where a bonded magnet material is molded, the filling properties of the bonded magnet material can be improved by using the surface modifying agent (1) when a mold is filled with the bonded magnet material.