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Variable-frequency wide-temperature-range low-loss high-magnetic-flux-density MnZn power ferrite and preparation method thereof
The invention is suitable for the technical field of soft magnetism, and provides a variable-frequency wide-temperature-range low-loss high-magnetic-flux-density MnZn power ferrite and a preparation method thereof. The main components comprise the following components in percentage by weight: 52.00 to 54.00 mol% of Fe2O3, 9.00 to 12.0 mol% of ZnO, 35.5 to 38.5 mol% of MnO, and 0.3 to 0.6 wt% of Co2O3 in percentage by weight. The auxiliary components comprise four or more of the following components according to the total weight of the main components: 0.05 to 0.10 wt% of CaCO3, 0.008 to 0.03 wt% of SiO2, 0.03 to 0.10 wt% of Sb2O3, 0.01 to 0.08 wt% of Ta2O5, 0.005 to 0.02 wt% of V2O5, 0.01 to 0.08 wt% of In2O3 and 0.01 to 0.06 wt% of Nb2O5. The MnZn ferrite material prepared by the invention has the characteristics of high frequency band, wide temperature range and low loss, a lot of researches are carried out on the sintering process, and the sintering temperature, the heat preservation time, the sintering oxygen content and the heating and cooling curve are improved, so that the process production has the characteristics of low cost and stable process, and the MnZn power ferrite with medium-high frequency frequency conversion, wide temperature range and low loss can be manufactured.
本发明适用于软磁技术领域，提供了一种变频宽温低损耗高磁通密度MnZn功率铁氧体及其制备方法，由主成分和辅助成分组成；主成分及其含量以氧化物计算为：Fe2O3：52.00～54.00mol％、ZnO：9.00～12.0mol％、MnO：35.5～38.5mol％以及以重量百分比计为0.3～0.6wt％的Co2O3；按主成分总重量计的辅助成分为：CaCO3：0.05～0.10wt％、SiO2：0.008～0.03wt％、Sb2O3：0.03～0.10wt％、Ta2O5：0.01～0.08wt％、V2O5：0.005～0.02wt％、In2O3：0.01～0.08wt％、Nb2O5：0.01～0.06wt％中的四种以上。本发明所制得的MnZn铁氧体材料具有高频段与宽温低损耗特性，并且在烧结工艺上进行了大量的研究，通过对烧结温度，保温时间、烧结氧含量及升降温曲线进行了改进，工艺生产具有成本低、工艺稳定的特点，能制造出具有中高频变频宽温低损耗MnZn功率铁氧体。
Variable-frequency wide-temperature-range low-loss high-magnetic-flux-density MnZn power ferrite and preparation method thereof
The invention is suitable for the technical field of soft magnetism, and provides a variable-frequency wide-temperature-range low-loss high-magnetic-flux-density MnZn power ferrite and a preparation method thereof. The main components comprise the following components in percentage by weight: 52.00 to 54.00 mol% of Fe2O3, 9.00 to 12.0 mol% of ZnO, 35.5 to 38.5 mol% of MnO, and 0.3 to 0.6 wt% of Co2O3 in percentage by weight. The auxiliary components comprise four or more of the following components according to the total weight of the main components: 0.05 to 0.10 wt% of CaCO3, 0.008 to 0.03 wt% of SiO2, 0.03 to 0.10 wt% of Sb2O3, 0.01 to 0.08 wt% of Ta2O5, 0.005 to 0.02 wt% of V2O5, 0.01 to 0.08 wt% of In2O3 and 0.01 to 0.06 wt% of Nb2O5. The MnZn ferrite material prepared by the invention has the characteristics of high frequency band, wide temperature range and low loss, a lot of researches are carried out on the sintering process, and the sintering temperature, the heat preservation time, the sintering oxygen content and the heating and cooling curve are improved, so that the process production has the characteristics of low cost and stable process, and the MnZn power ferrite with medium-high frequency frequency conversion, wide temperature range and low loss can be manufactured.
本发明适用于软磁技术领域，提供了一种变频宽温低损耗高磁通密度MnZn功率铁氧体及其制备方法，由主成分和辅助成分组成；主成分及其含量以氧化物计算为：Fe2O3：52.00～54.00mol％、ZnO：9.00～12.0mol％、MnO：35.5～38.5mol％以及以重量百分比计为0.3～0.6wt％的Co2O3；按主成分总重量计的辅助成分为：CaCO3：0.05～0.10wt％、SiO2：0.008～0.03wt％、Sb2O3：0.03～0.10wt％、Ta2O5：0.01～0.08wt％、V2O5：0.005～0.02wt％、In2O3：0.01～0.08wt％、Nb2O5：0.01～0.06wt％中的四种以上。本发明所制得的MnZn铁氧体材料具有高频段与宽温低损耗特性，并且在烧结工艺上进行了大量的研究，通过对烧结温度，保温时间、烧结氧含量及升降温曲线进行了改进，工艺生产具有成本低、工艺稳定的特点，能制造出具有中高频变频宽温低损耗MnZn功率铁氧体。
Variable-frequency wide-temperature-range low-loss high-magnetic-flux-density MnZn power ferrite and preparation method thereof
一种变频宽温低损耗高磁通密度MnZn功率铁氧体及其制备方法
WANG WEI (author) / WANG JISEN (author) / DING WUHUI (author) / DING SIHAI (author) / ZHANG HONG'AN (author)
2021-06-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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