Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-stability permanent magnetic ferrite material and preparation method thereof
The invention discloses a high-stability permanent magnetic ferrite material and a preparation method thereof, and belongs to the technical field of rare earth magnetic materials. The method comprises the following steps: carrying out primary ball-milling on preparation raw materials to obtain slurry, drying, pre-sintering, crushing and sieving to obtain pre-sintered material particles, adding a rare earth oxide additive and water, carrying out secondary ball-milling to obtain secondary ball-milled slurry, applying a magnetic field to the secondary ball-milled slurry for orientation, carrying out compression molding to obtain a green body, and sintering to obtain the permanent magnetic ferrite, and finally, solid solution treatment, magnetic field heat treatment and tempering heat treatment are conducted. By adopting a novel element doping technology, a microstructure fine control technology, an efficient ball milling technology, an optimized sintering technology and an advanced heat treatment technology, the comprehensive magnetic performance and the stability of the permanent magnetic ferrite are greatly improved.
本发明公开了一种高稳定的永磁铁氧体材料及其制备方法，属于稀土磁材料技术领域。所述方法包括以下步骤：将制备原料一次球磨得到浆料，干燥、预烧、破碎过筛处理后得到预烧料颗粒，加入稀土氧化物添加剂和水进行二次球磨得到二次球磨浆料，对其加磁场取向，压制成型得到生胚，再烧结得到永磁铁氧体，最后进行固熔处理、磁场热处理和回火热处理。本发明采用新型元素掺杂技术、微结构精细化控制工艺、高效球磨技术、优化烧结工艺以及先进的热处理技术大幅提升永磁铁氧体的综合磁性能和稳定性。
High-stability permanent magnetic ferrite material and preparation method thereof
The invention discloses a high-stability permanent magnetic ferrite material and a preparation method thereof, and belongs to the technical field of rare earth magnetic materials. The method comprises the following steps: carrying out primary ball-milling on preparation raw materials to obtain slurry, drying, pre-sintering, crushing and sieving to obtain pre-sintered material particles, adding a rare earth oxide additive and water, carrying out secondary ball-milling to obtain secondary ball-milled slurry, applying a magnetic field to the secondary ball-milled slurry for orientation, carrying out compression molding to obtain a green body, and sintering to obtain the permanent magnetic ferrite, and finally, solid solution treatment, magnetic field heat treatment and tempering heat treatment are conducted. By adopting a novel element doping technology, a microstructure fine control technology, an efficient ball milling technology, an optimized sintering technology and an advanced heat treatment technology, the comprehensive magnetic performance and the stability of the permanent magnetic ferrite are greatly improved.
本发明公开了一种高稳定的永磁铁氧体材料及其制备方法，属于稀土磁材料技术领域。所述方法包括以下步骤：将制备原料一次球磨得到浆料，干燥、预烧、破碎过筛处理后得到预烧料颗粒，加入稀土氧化物添加剂和水进行二次球磨得到二次球磨浆料，对其加磁场取向，压制成型得到生胚，再烧结得到永磁铁氧体，最后进行固熔处理、磁场热处理和回火热处理。本发明采用新型元素掺杂技术、微结构精细化控制工艺、高效球磨技术、优化烧结工艺以及先进的热处理技术大幅提升永磁铁氧体的综合磁性能和稳定性。
High-stability permanent magnetic ferrite material and preparation method thereof
一种高稳定的永磁铁氧体材料及其制备方法
WU XINYUAN (Autor:in)
12.11.2024
Patent
Elektronische Ressource
Chinesisch
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