Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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High-performance rare earth compound permanent magnetic ferrite material and preparation method thereof
The invention relates to a high-performance rare earth compound permanent magnetic ferrite material, and belongs to the technical field of magnetic material preparation, the invention also discloses a preparation method thereof, and the preparation method comprises the following steps: preparing the following raw materials in percentage by weight: 88-90 wt% of Fe2O3, 8.0-9.5 wt% of SrCO3, 0.05-0.2 wt% of CO2O3, 0.05-0.2 wt% of La2O3, 0.3-0.5 wt% of SiO2, and the balance of calcium carbonate; and preparing the product through the steps of primary ball milling, drying and pre-sintering, coarse crushing, secondary ball milling, magnetic field forming, sintering and grinding and the like, wherein a dispersing agent, an additive and an auxiliary agent are added in the secondary ball milling process, the density and the magnetic performance of the permanent magnetic ferrite can be improved by adding the substances, and the permanent magnetic ferrite contains rare earth raw materials and is better in magnetic performance.
本发明涉及一种高性能稀土复配型永磁铁氧体材料，属于磁性材料制备技术领域，本发明还公开了其制备方法，包括以下步骤：准备以下重量百分比的原料：Fe2O3含量88‑90wt％，SrCO3含量8.0‑9.5wt％，CO2O3含量0.05‑0.2wt％，La2O3含量0.05‑0.2wt％，SiO2含量0.3‑0.5wt％，余量为碳酸钙；经过一次球磨、烘干预烧、粗粉碎、二次球磨、磁场成型、烧结打磨等步骤制得，二次球磨过程中加入有分散剂、添加剂和助剂，这些物质的加入能够增加永磁铁氧体的致密度和磁性能，并且本发明永磁铁氧体原料中含有稀土原料，磁性能更好。
High-performance rare earth compound permanent magnetic ferrite material and preparation method thereof
The invention relates to a high-performance rare earth compound permanent magnetic ferrite material, and belongs to the technical field of magnetic material preparation, the invention also discloses a preparation method thereof, and the preparation method comprises the following steps: preparing the following raw materials in percentage by weight: 88-90 wt% of Fe2O3, 8.0-9.5 wt% of SrCO3, 0.05-0.2 wt% of CO2O3, 0.05-0.2 wt% of La2O3, 0.3-0.5 wt% of SiO2, and the balance of calcium carbonate; and preparing the product through the steps of primary ball milling, drying and pre-sintering, coarse crushing, secondary ball milling, magnetic field forming, sintering and grinding and the like, wherein a dispersing agent, an additive and an auxiliary agent are added in the secondary ball milling process, the density and the magnetic performance of the permanent magnetic ferrite can be improved by adding the substances, and the permanent magnetic ferrite contains rare earth raw materials and is better in magnetic performance.
本发明涉及一种高性能稀土复配型永磁铁氧体材料，属于磁性材料制备技术领域，本发明还公开了其制备方法，包括以下步骤：准备以下重量百分比的原料：Fe2O3含量88‑90wt％，SrCO3含量8.0‑9.5wt％，CO2O3含量0.05‑0.2wt％，La2O3含量0.05‑0.2wt％，SiO2含量0.3‑0.5wt％，余量为碳酸钙；经过一次球磨、烘干预烧、粗粉碎、二次球磨、磁场成型、烧结打磨等步骤制得，二次球磨过程中加入有分散剂、添加剂和助剂，这些物质的加入能够增加永磁铁氧体的致密度和磁性能，并且本发明永磁铁氧体原料中含有稀土原料，磁性能更好。
High-performance rare earth compound permanent magnetic ferrite material and preparation method thereof
一种高性能稀土复配型永磁铁氧体材料及其制备方法
YU TAO (Autor:in) / SONG JIAPEI (Autor:in) / YU CHAO (Autor:in)
11.01.2022
Patent
Elektronische Ressource
Chinesisch
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