Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Permanent magnetic strontium ferrite as well as preparation method and application thereof
The invention relates to permanent magnetic strontium ferrite as well as a preparation method and application thereof, and belongs to the technical field of ferrite material preparation. The chemical formula of the permanent magnetic strontium ferrite provided by the invention is SrCux/2Six/2Fe11.8-xO19, wherein x is more than 0 and less than or equal to 0.3; the preparation method comprises the following steps: carrying out primary ball milling, drying, pre-sintering, crushing and sieving on preparation raw materials to obtain pre-sintered material particles; performing secondary ball milling on the pre-sintered material to obtain secondary ball-milled slurry; applying a magnetic field for orientation, and performing wet compression molding to obtain a green body; and drying, and then carrying out gradient heating sintering to obtain the permanent magnetic strontium ferrite. The permanent magnetic ferrite provided by the invention is excellent in magnetic performance and relatively low in temperature coefficient at room temperature, can maintain the stability of a working point and high-efficiency output in a motor, reduces loss, and has relatively high application value.
本发明涉及一种永磁锶铁氧体及其制备方法与应用，属于铁氧体材料制备技术领域。本发明所提供的永磁锶铁氧体化学式为：SrCux/2Six/2Fe11.8‑xO19，其中0＜x≤0.3；其制备方法包括：对制备原料进行一次球磨、干燥、预烧，破碎过筛，得到预烧料颗粒；对预烧料二次球磨，得到二次球磨浆料；加磁场取向，湿法压制成型，得到生坯；干燥，然后梯度升温烧结，得到所述永磁锶铁氧体。本发明所提供的永磁铁氧体室温下磁性能优异且温度系数较低，能够在电机中保持工作点的稳定性和高效率的输出、减少损耗，有较高的应用价值。
Permanent magnetic strontium ferrite as well as preparation method and application thereof
The invention relates to permanent magnetic strontium ferrite as well as a preparation method and application thereof, and belongs to the technical field of ferrite material preparation. The chemical formula of the permanent magnetic strontium ferrite provided by the invention is SrCux/2Six/2Fe11.8-xO19, wherein x is more than 0 and less than or equal to 0.3; the preparation method comprises the following steps: carrying out primary ball milling, drying, pre-sintering, crushing and sieving on preparation raw materials to obtain pre-sintered material particles; performing secondary ball milling on the pre-sintered material to obtain secondary ball-milled slurry; applying a magnetic field for orientation, and performing wet compression molding to obtain a green body; and drying, and then carrying out gradient heating sintering to obtain the permanent magnetic strontium ferrite. The permanent magnetic ferrite provided by the invention is excellent in magnetic performance and relatively low in temperature coefficient at room temperature, can maintain the stability of a working point and high-efficiency output in a motor, reduces loss, and has relatively high application value.
本发明涉及一种永磁锶铁氧体及其制备方法与应用，属于铁氧体材料制备技术领域。本发明所提供的永磁锶铁氧体化学式为：SrCux/2Six/2Fe11.8‑xO19，其中0＜x≤0.3；其制备方法包括：对制备原料进行一次球磨、干燥、预烧，破碎过筛，得到预烧料颗粒；对预烧料二次球磨，得到二次球磨浆料；加磁场取向，湿法压制成型，得到生坯；干燥，然后梯度升温烧结，得到所述永磁锶铁氧体。本发明所提供的永磁铁氧体室温下磁性能优异且温度系数较低，能够在电机中保持工作点的稳定性和高效率的输出、减少损耗，有较高的应用价值。
Permanent magnetic strontium ferrite as well as preparation method and application thereof
一种永磁锶铁氧体及其制备方法与应用
LI MENGQI (Autor:in) / ZHAO TONGYUN (Autor:in) / GONG HUAYANG (Autor:in) / SUN YANG (Autor:in) / ZHOU DONGQING (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
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