PREPARATION METHOD OF HIGH ENERGY MAGNET

文件类型：PDF文档
文件大小：342K
The present invention relates to a method for manufacturing a magnet which comprises the following : a step of sequentially applying a pulse magnetic field and a static magnetic field to rare-earth magnetic powder; a step of forming a preliminary body by applying pressure to the rare-earth magnetic powder after applying the static magnetic field; a step of sequentially applying the pulse magnetic field and the static magnetic field to the preliminary body; and a first forming step of applying pressure to the preliminary body after applying the static magnetic field. The pressure applied to the rare-earth magnetic powder has a size of 10-50% compared to the pressure applied to the preliminary body.