粘结钕铁硼磁体压制成型模具设计

摘要

Compression molding is the most important method for bonded NdFeB magnets, the process of which includes preparation of composite powder, compression molding, coating and magnetizing. Based on test and mass production practice, the important effects of compression molding actions, mould structure and mould material on magnet quality are analyzed. The molds were designed for ring- and arc-magnets. The key techniques controlling the quality of bonded NdFeB magnets are summarized.%压制成型是获得高质量粘结钕铁硼磁体最重要的方法,其生产工序包括复合粉制备、模压成型、表面涂装和充磁等.结合实验和生产实践,分析了压制成型动作、模具结构和模具材料对磁体质量的重要影响.在此基础上优化了磁环和磁瓦的模具结构.最后,提出了控制粘结钕铁硼磁体成型质量的关键技术.