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Method for improving magnetic performance of permanent magnetic ferrite
The invention relates to a method for improving the magnetic property of permanent magnetic ferrite, and the method comprises the following steps: (1) adding a permanent magnetic ferrite pre-sinteredmaterial into a ball mill, and adding additives calcium carbonate, quartz sand, metal chromium powder and calcium gluconate into the ball mill; (2) adding water into a ball mill, and carrying out ballmilling to obtain permanent magnetic ferrite slurry; (3) precipitating and filtering the permanent magnetic ferrite slurry obtained in the step (2) to obtain permanent magnetic ferrite filtered slurry; (4) injecting the permanent magnetic ferrite filter slurry obtained in the step (3) into a mold, and carrying out pressure molding in a magnetic field to obtain a permanent magnetic ferrite green body; (5) heating and sintering the permanent magnetic ferrite green body obtained in the step (4) to obtain a permanent magnetic ferrite product. According to the method, the metal chromium powder isselected as one of the additives, and compared with a traditional method, the magnetic performance of the permanent magnetic ferrite is improved, and the production cost is reduced.
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，同时向球磨机中加入添加剂碳酸钙、石英砂、金属铬粉和葡萄糖酸钙；（2）向球磨机中加入水，进行球磨，得永磁铁氧体料浆；（3）将步骤（2）所得永磁铁氧体料浆进行沉淀，过滤，得永磁铁氧体过滤料浆；（4）将步骤（3）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；（5）将步骤（4）所得永磁铁氧体生坯升温烧结，得永磁铁氧体产品。本发明方法选择金属铬粉作为添加剂之一，与传统的方法相比，提高了永磁铁氧体的磁性能，且降低了生产成本。
Method for improving magnetic performance of permanent magnetic ferrite
The invention relates to a method for improving the magnetic property of permanent magnetic ferrite, and the method comprises the following steps: (1) adding a permanent magnetic ferrite pre-sinteredmaterial into a ball mill, and adding additives calcium carbonate, quartz sand, metal chromium powder and calcium gluconate into the ball mill; (2) adding water into a ball mill, and carrying out ballmilling to obtain permanent magnetic ferrite slurry; (3) precipitating and filtering the permanent magnetic ferrite slurry obtained in the step (2) to obtain permanent magnetic ferrite filtered slurry; (4) injecting the permanent magnetic ferrite filter slurry obtained in the step (3) into a mold, and carrying out pressure molding in a magnetic field to obtain a permanent magnetic ferrite green body; (5) heating and sintering the permanent magnetic ferrite green body obtained in the step (4) to obtain a permanent magnetic ferrite product. According to the method, the metal chromium powder isselected as one of the additives, and compared with a traditional method, the magnetic performance of the permanent magnetic ferrite is improved, and the production cost is reduced.
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，同时向球磨机中加入添加剂碳酸钙、石英砂、金属铬粉和葡萄糖酸钙；（2）向球磨机中加入水，进行球磨，得永磁铁氧体料浆；（3）将步骤（2）所得永磁铁氧体料浆进行沉淀，过滤，得永磁铁氧体过滤料浆；（4）将步骤（3）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；（5）将步骤（4）所得永磁铁氧体生坯升温烧结，得永磁铁氧体产品。本发明方法选择金属铬粉作为添加剂之一，与传统的方法相比，提高了永磁铁氧体的磁性能，且降低了生产成本。
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) / DENG XINGMIN (author) / WANG YUMING (author) / ZHENG ZIRU (author) / HU SHENGQING (author)
2021-02-09
Patent
Electronic Resource
Chinese
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