A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for improving magnetic performance of permanent magnetic ferrite
A method for improving the magnetic property of a permanent magnetic ferrite comprises the following steps: (1) adding a permanent magnetic ferrite pre-sintered material into a ball mill, adding calcium carbonate, silicon dioxide, zinc borate and lanthanum oxide, adding water, and carrying out ball milling to obtain permanent magnetic ferrite slurry; (2) precipitating and filtering the permanent magnetic ferrite slurry obtained in the step (1) to obtain permanent magnetic ferrite filter slurry; (3) injecting the permanent magnetic ferrite filter slurry obtained in the step (2) into a mold, andcarrying out pressure molding in a magnetic field to obtain a permanent magnetic ferrite green body; and (4) sintering the permanent magnetic ferrite green body obtained in the step (3) to obtain thepermanent magnetic ferrite. Compared with the traditional process method, the technical scheme provided by the invention can obtain excellent magnetic performance under the condition that the granularity of the slurry is greater than or equal to 1.0 [mu]m, so that the forming difficulty of the slurry is reduced, the production efficiency is improved, and the method is more suitable for preparinga permanent magnet device with a complex shape.
一种提高永磁铁氧体磁性能的方法，包括以下步骤：（1）将永磁铁氧体预烧料加入球磨机中，加入碳酸钙、二氧化硅、硼酸锌、氧化镧，然后加入水，球磨，得永磁铁氧体料浆；（2）将步骤（1）所得永磁铁氧体料浆沉淀过滤，得永磁铁氧体过滤料浆；（3）将步骤（2）所得永磁铁氧体过滤料浆注入模具，在磁场下加压成型，得永磁铁氧体生坯；（4）将步骤（3）所得永磁铁氧体生坯进行烧结，得永磁铁氧体。与传统的工艺方法相比，本发明提供的技术方案可以在料浆粒度≥1.0μm的条件下获得优异的磁性能，从而降低的料浆的成型难度，提高了生产效率，更加适用于制备复杂形状的永磁器件。
Method for improving magnetic performance of permanent magnetic ferrite
A method for improving the magnetic property of a permanent magnetic ferrite comprises the following steps: (1) adding a permanent magnetic ferrite pre-sintered material into a ball mill, adding calcium carbonate, silicon dioxide, zinc borate and lanthanum oxide, adding water, and carrying out ball milling to obtain permanent magnetic ferrite slurry; (2) precipitating and filtering the permanent magnetic ferrite slurry obtained in the step (1) to obtain permanent magnetic ferrite filter slurry; (3) injecting the permanent magnetic ferrite filter slurry obtained in the step (2) into a mold, andcarrying out pressure molding in a magnetic field to obtain a permanent magnetic ferrite green body; and (4) sintering the permanent magnetic ferrite green body obtained in the step (3) to obtain thepermanent magnetic ferrite. Compared with the traditional process method, the technical scheme provided by the invention can obtain excellent magnetic performance under the condition that the granularity of the slurry is greater than or equal to 1.0 [mu]m, so that the forming difficulty of the slurry is reduced, the production efficiency is improved, and the method is more suitable for preparinga permanent magnet device with a complex shape.
一种提高永磁铁氧体磁性能的方法，包括以下步骤：（1）将永磁铁氧体预烧料加入球磨机中，加入碳酸钙、二氧化硅、硼酸锌、氧化镧，然后加入水，球磨，得永磁铁氧体料浆；（2）将步骤（1）所得永磁铁氧体料浆沉淀过滤，得永磁铁氧体过滤料浆；（3）将步骤（2）所得永磁铁氧体过滤料浆注入模具，在磁场下加压成型，得永磁铁氧体生坯；（4）将步骤（3）所得永磁铁氧体生坯进行烧结，得永磁铁氧体。与传统的工艺方法相比，本发明提供的技术方案可以在料浆粒度≥1.0μm的条件下获得优异的磁性能，从而降低的料浆的成型难度，提高了生产效率，更加适用于制备复杂形状的永磁器件。
Method for improving magnetic performance of permanent magnetic ferrite
一种提高永磁铁氧体磁性能的方法
ZHENG LIANG (author) / ZHANG TIEJUN (author) / DENG XINGMIN (author) / QIU BANGXIANG (author)
2020-05-05
Patent
Electronic Resource
Chinese
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