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Strontium ferrite and preparation method thereof
The invention discloses a preparation method of strontium ferrite and the strontium ferrite and belongs to the technical field of permanent magnet materials, and the preparation method of the strontium ferrite is characterized by comprising the following preparation steps: S1, raw material preparation: mixing 80-88 parts by weight of ferric oxide, 6.5-8.5 parts by weight of strontium carbonate and 0.5-0.9 part by weight of calcium carbonate powder to obtain a mixture A; s2, performing primary wet ball milling on the mixture A to obtain mixture A slurry; s3, drying the slurry of the mixture A obtained in the step S2, pre-sintering, and crushing to obtain pre-sintered powder; s4, mixing 0.8-1.5 parts by weight of cobaltosic oxide, 3-4 parts by weight of lanthanum oxide, 0.2-0.6 part by weight of silicon dioxide and 2-6 parts by weight of a dispersing agent with the pre-sintered material powder, and performing secondary wet ball milling to obtain slurry of a mixture B; and S5, drying the slurry of the mixture B, pressing into a blank, and sintering to obtain the strontium ferrite at the sintering temperature of 1175-1205 DEG C, and keeping the temperature for 4-6 hours, thereby achieving the effect of improving the magnetic performance of the strontium ferrite.
本发明公开了一种锶铁氧体的制备方法及其锶铁氧体，属于永磁材料技术领域，其技术方案要点是一种锶铁氧体的制备方法，包括如下制备步骤：S1、原料配制：按重量份计，将80‑88份三氧化二铁、6.5‑8.5份碳酸锶、0.5‑0.9份碳酸钙粉末混合得到混合物A；S2、将混合物A进行一次湿法球磨得到混合物A料浆；S3、将步骤S2得到的混合物A料浆烘干后进行预烧结后破碎得到预烧料粉；S4、将0.8‑1.5重量份的四氧化三钴、3‑4重量份的氧化镧、0.2‑0.6重量份的二氧化硅、2‑6重量份的分散剂与预烧料粉混合后进行二次湿法球磨得到混合物B料浆；S5、将混合物B料浆烘干后压坯后进行烧结得到锶铁氧体，烧结温度为1175‑1205℃，保温4‑6h，达到提高锶铁氧体的磁性能的效果。
Strontium ferrite and preparation method thereof
The invention discloses a preparation method of strontium ferrite and the strontium ferrite and belongs to the technical field of permanent magnet materials, and the preparation method of the strontium ferrite is characterized by comprising the following preparation steps: S1, raw material preparation: mixing 80-88 parts by weight of ferric oxide, 6.5-8.5 parts by weight of strontium carbonate and 0.5-0.9 part by weight of calcium carbonate powder to obtain a mixture A; s2, performing primary wet ball milling on the mixture A to obtain mixture A slurry; s3, drying the slurry of the mixture A obtained in the step S2, pre-sintering, and crushing to obtain pre-sintered powder; s4, mixing 0.8-1.5 parts by weight of cobaltosic oxide, 3-4 parts by weight of lanthanum oxide, 0.2-0.6 part by weight of silicon dioxide and 2-6 parts by weight of a dispersing agent with the pre-sintered material powder, and performing secondary wet ball milling to obtain slurry of a mixture B; and S5, drying the slurry of the mixture B, pressing into a blank, and sintering to obtain the strontium ferrite at the sintering temperature of 1175-1205 DEG C, and keeping the temperature for 4-6 hours, thereby achieving the effect of improving the magnetic performance of the strontium ferrite.
本发明公开了一种锶铁氧体的制备方法及其锶铁氧体，属于永磁材料技术领域，其技术方案要点是一种锶铁氧体的制备方法，包括如下制备步骤：S1、原料配制：按重量份计，将80‑88份三氧化二铁、6.5‑8.5份碳酸锶、0.5‑0.9份碳酸钙粉末混合得到混合物A；S2、将混合物A进行一次湿法球磨得到混合物A料浆；S3、将步骤S2得到的混合物A料浆烘干后进行预烧结后破碎得到预烧料粉；S4、将0.8‑1.5重量份的四氧化三钴、3‑4重量份的氧化镧、0.2‑0.6重量份的二氧化硅、2‑6重量份的分散剂与预烧料粉混合后进行二次湿法球磨得到混合物B料浆；S5、将混合物B料浆烘干后压坯后进行烧结得到锶铁氧体，烧结温度为1175‑1205℃，保温4‑6h，达到提高锶铁氧体的磁性能的效果。
Strontium ferrite and preparation method thereof
一种锶铁氧体的制备方法及其锶铁氧体
YAO WENBIAO (author) / CHEN ZHONGYAN (author) / LYU ZHENGHUI (author) / YANG JUNYU (author)
2025-01-07
Patent
Electronic Resource
Chinese
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