| 摘要 |
PURPOSE:To prevent magnet powder from carbonizing and oxidizing by metal- plating rare earth magnet powder which mainly contains rare earth metals, iron and boron, adding organic binder to the powder, then kneading the mixture, injection molding it in a magnetic field and sintering the molding. CONSTITUTION:Rare earth magnet powder which mainly contains R-Fe-B is metal-plated in thickness of a range of 0.01-1.0mum. After organic binder is added to the powder, the mixture is kneaded, and the molding obtained by injection molding the kneaded mixture in a magnetic field is sintered. Thus, it prevents the powder from carbonizing and oxidizing during manufacturing steps to provide a sintered magnet having high magnetic properties Since the powder can be stocked in the powder state for a long period, the management of the powder in mass production is facilitated. |
