METHOD OF MANUFACTURING MAGNET, AND MAGNETIZATION METHOD FOR MAGNET

• Main Authors: KUME KATSUYA, HIRANO HIROKI, SAITO SHOICHIRO, YAMAMOTO TAKASHI, FUJIKAWA KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 20.12.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a method of manufacturing a Halbach magnet having productivity higher than ever.SOLUTION: A method of manufacturing a magnet includes a step (1) of constituting an assembly by preparing three or more unmagnetized magnet materials in which an easily magnetizable axis is oriented in a predetermined direction and bonding the respective unmagnetized magnet materials to each other, and a step (2) of magnetizing the assembly by applying a curved pulse magnetic field to the assembly. Each of the unmagnetized magnet materials is turned into a magnet block by the step (2). An angle θ (which satisfies the inequality: 0≤θ≤180°), which is made between magnetization directions of at least one set of adjacent magnet blocks, is in the range of 30-120°.SELECTED DRAWING: Figure 8 【課題】従来に比べて高い生産性を有するハルバッハ磁石の製造方法を提供する。【解決手段】磁石の製造方法であって、（１）磁化容易軸が所定の方向に配向された３つ以上の未着磁磁石素材を準備し、各未着磁磁石素材を相互に接着させて、組立体を構成する工程と、（２）前記組立体に曲線状のパルス磁場を印加して、前記組立体を着磁させる工程と、を有し、前記（２）の工程により、各未着磁磁石素材は磁石ブロックとなり、少なくとも一組の、隣接する前記磁石ブロック同士の磁化方向のなす角度θ（ただし０≦θ≦１８０°とする）は、３０°〜１２０°の範囲となる、製造方法。【選択図】図８