| 摘要 |
PROBLEM TO BE SOLVED: To provide a rear earth bonded magnet which is provided with high heat resistance, superior size stability, high mechanical strength and superior magnetic characteristics. SOLUTION: A rare earth bonded magnet is manufactured by compression molding by the use of a composition for a rare earth bonded magnet including a rear earth magnet powder, bonding resin, antioxidant and lubricant as needed. As the rare earth magnet powder, at least one kinds of Sm-Co alloy, R-Fe-B alloy (where R is at least one kind of rare earth elements, including Y) and Sm-Fe-N alloy. The bonding resin is constituted of polybutylene terephthalate(PBT) or thermoplastic resin based on this. |
