Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a ferrite permanent magnet material and a preparation method thereof, and belongs to the technical field of permanent magnet materials. The permanent magnet material is preparedfrom the following components in parts by weight: Fe2O3, SrCO3, La2O3, Co2O3, CaCO3 and SiO2. The preparation method comprises the following steps of: burdening, wet rolling, precipitating, primary forming, presintering, primary crushing, secondary ball milling, secondary forming and sintering. According to the ferrite permanent magnet material, the replacement amount of combined ions in the material is increased in the presintering process, presintering is conducted under a sufficient oxidizing atmosphere, a proper presintering temperature is set, the permanent magnet ferrite M phase can befully generated, and better magnetic performance is obtained; and by controlling the granularity in the step of secondary ball milling, the production efficiency and the percent of pass of molding areimproved, and the sintered product has the characteristics of high residual magnetism, high coercive force and high intrinsic property, can meet the performance requirements of TDKFB12, and has popularization and application values.
本发明提供了一种铁氧体永磁材料及其制备方法，属于永磁材料技术领域。所述永磁材料按重量份计，由以下成分组成：Fe2O3，SrCO3，La2O3，Co2O3，CaCO3，SiO2。其制备方法包括：配料，湿辊，沉淀，一次成型，预烧，一次破碎，二次球磨，二次成型和烧结。本发明的铁氧体永磁材料通过在预烧中增加组合离子在材料中的替换量，在充分的氧化气氛下预烧结，并设定合适的预烧结温度，能够充分生成永磁铁氧体M相，得到更好的磁性能；通过在二次球磨步骤中控制粒度，提高了成型的生产效率和合格率，产品烧结出来后具有剩磁高、矫顽力高、内禀高的特点性能能达到TDKFB12性能要求，具有推广应用价值。
The invention provides a ferrite permanent magnet material and a preparation method thereof, and belongs to the technical field of permanent magnet materials. The permanent magnet material is preparedfrom the following components in parts by weight: Fe2O3, SrCO3, La2O3, Co2O3, CaCO3 and SiO2. The preparation method comprises the following steps of: burdening, wet rolling, precipitating, primary forming, presintering, primary crushing, secondary ball milling, secondary forming and sintering. According to the ferrite permanent magnet material, the replacement amount of combined ions in the material is increased in the presintering process, presintering is conducted under a sufficient oxidizing atmosphere, a proper presintering temperature is set, the permanent magnet ferrite M phase can befully generated, and better magnetic performance is obtained; and by controlling the granularity in the step of secondary ball milling, the production efficiency and the percent of pass of molding areimproved, and the sintered product has the characteristics of high residual magnetism, high coercive force and high intrinsic property, can meet the performance requirements of TDKFB12, and has popularization and application values.
本发明提供了一种铁氧体永磁材料及其制备方法，属于永磁材料技术领域。所述永磁材料按重量份计，由以下成分组成：Fe2O3，SrCO3，La2O3，Co2O3，CaCO3，SiO2。其制备方法包括：配料，湿辊，沉淀，一次成型，预烧，一次破碎，二次球磨，二次成型和烧结。本发明的铁氧体永磁材料通过在预烧中增加组合离子在材料中的替换量，在充分的氧化气氛下预烧结，并设定合适的预烧结温度，能够充分生成永磁铁氧体M相，得到更好的磁性能；通过在二次球磨步骤中控制粒度，提高了成型的生产效率和合格率，产品烧结出来后具有剩磁高、矫顽力高、内禀高的特点性能能达到TDKFB12性能要求，具有推广应用价值。
Ferrite permanent magnet material and preparation method thereof
一种铁氧体永磁材料及其制备方法
PAN LIN (Autor:in)
05.02.2021
Patent
Elektronische Ressource
Chinesisch
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