CN107935579A - 一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法 - Google Patents
一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法 Download PDFInfo
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- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 title claims abstract description 19
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- UPWOEMHINGJHOB-UHFFFAOYSA-N oxo(oxocobaltiooxy)cobalt Chemical compound O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 7
- 229910052906 cristobalite Inorganic materials 0.000 claims description 7
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229910052682 stishovite Inorganic materials 0.000 claims description 7
- 229910052905 tridymite Inorganic materials 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract description 4
- 238000012356 Product development Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000696 magnetic material Substances 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
本发明涉及锰锌铁氧体磁性材料生产技术领域，具体涉及一种在产品研发及产品批量生产中精确控制宽温低温度系数锰锌铁氧体粉料谷点的方法。所述锰锌铁氧体粉料包括主成分和添加剂；所述主成分由Fe2O3、ZnO和Mn3O4组成；所述ZnO占主成分的重量百分比为4～9wt％；所述Fe2O3占主成分的重量百分比根据公式Fe2O3(wt％)＝72.88‑A*ZnO(wt％)计算；其中控制谷点为80℃时，A值为0.2278；其中控制谷点为90℃时，A值为0.2313；其中控制谷点为100℃时，A值为0.2358。本发明提供的方法可以用于新产品开发，也适用于产线批量生产时发生异常情况导致成分性能发生偏差的情况，具有调整方法简单，操作便利，成本低，效益高的优点。
Description
技术领域
本发明涉及锰锌铁氧体磁性材料生产技术领域，具体涉及一种在产品研发及产品批量生产中精确控制宽温低温度系数锰锌铁氧体粉料谷点的方法。
背景技术
随着通讯网络的扩展，通讯设备工作环境也日趋恶劣，常常在低温和高温交替的环境下运行，这就要求开发能在更宽环境温度范围下使用的产品，同时产品要具有良好的稳定性。要求作为电源变压器或滤波器的软磁铁氧体材料必须具有适中的磁导率、高的饱和磁感应强度、低的损耗，在很宽的温度范围(-40℃～+100℃)内具有较好的磁导率稳定性。
但是，随着饱和磁感应强度的要求越来越高，产品的居里温度随之上升。根据现有二峰温度Tsp和居里温度TC的经验公式Tsp＝0.88Tc-2.9y，其中0<y<2，Tc＝12.8*[Fe2O3(Mol％)-2*ZnO(Mol％)/3]*100-81,然而，现而功率类铁氧体的谷点温度是考核产品质量的重要因素，其虽和二峰位置虽有相关性，但现有文献中从未给出谷点温度和二峰位置及铁氧体成分间的关系式。居里温度上升时，二峰位置和谷点温度对于主成分的敏感性变高；在实践中，对Fe2O3、ZnO和Mn3O4的控制精度需达到±0.05％才可以控制谷点符合需求，现有X荧光检测设备难以达到该控制需求；同时在产品需求发生变化，开发新产品时，开发难度也随之升高。如何更稳定的控制产品质量，及时准确的调整成分以控制产品谷点温度，开发和制备既具有宽温低温度系数，又具有低损耗、高饱和磁感应强度的锰锌软磁铁氧体材料，是亟需本领域科技人员所要解决的一个难题。
发明内容
本发明需要解决的技术方案是提供一种可有效控制宽温低温度系数锰锌铁氧体谷点，在复杂的产线批量生产或者不同ZnO质量分数需求的情况下开发新产品时可以稳定高效的达到预期效果的成分设计方案。
一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法，其特征在于,所述锰锌铁氧体粉料包括主成分和添加剂；所述主成分由Fe2O3、ZnO和Mn3O4组成；所述ZnO占主成分的重量百分比为4～9wt％；根据产线实际需要或者产品开发的不同饱和磁化强度和ZnO含量需求，选定ZnO的质量百分比。
所述Fe2O3占主成分的重量百分比根据公式Fe2O3(wt％)＝72.88-A*ZnO(wt％)计算；其中控制谷点为80℃时，A值为0.2278；其中控制谷点为90℃时，A值为0.2313；其中控制谷点为100℃时，A值为0.2358。
其中，所述添加剂由CaCO3、Co2O3、SiO2、V2O5和Nb2O5组成。
其中，所述添加剂由0.015～0.05wt％CaCO3、0.1～0.4wt％Co2O3、0.001～0.005wt％SiO2、0.02～0.07wt％V2O5和0.02～0.07wt％Nb2O5组成；所述百分比均为占所述主成分的重量百分比。
与现有技术相比，现有经验公式只能通过现有二峰温度Tsp和居里温度TC的经验公式Tsp＝0.88Tc-2.9y，其中0<y<2，Tc＝12.8*[Fe2O3(Mol％)-2*ZnO(Mol％)/3]*100-81,并根据工艺人员的定性理解和大量试验找到控制谷点温度的方向，并不能准确的根据成分计算出谷点温度，本发明给出了在所述成分范围内的谷点温度和成分的定量公式，可以缩短宽温低温度系数锰锌铁氧体粉料的开发周期，同时比现有经验公式更适用于产线批量生产，准确度更高，降低了对成分控制精度的需求，具有调整方法简单，操作便利，成本低，效益高的优点。
附图说明
图1不同谷点的宽温低损耗锰锌铁氧体配方关系图
具体实施方式
以下部分是具体实施方式对本发明做进一步说明，但以下实施方式仅仅是对本发明的进一步解释，不代表本发明保护范围仅限于此，凡是以本发明的思路所做的等效替换，均在本发明的保护范围。
实施例1
新产品开发需求为谷点90℃的宽温低温度系数锰锌铁氧体，ZnO质量百分比要求为4％，根据附图所提供公式，可以计算得到Fe2O3质量百分比为71.95％，Mn3O4的质量百分比为24.05％，由此主配方及添加剂的组成配方0.015wt％CaCO3、0.3wt％Co2O3、0.003wt％SiO2、0.05wt％V2O5、0.02wt％Nb2O5生产的锰锌铁氧提粉料，其谷点温度为90℃，电性能如下：
实施例2
生产谷点为100℃的宽温低温度系数锰锌铁氧体，ZnO质量百分比为5.0％，根据附图所提供公式，可以计算得到Fe2O3质量百分比为71.70％，Mn3O4的质量百分比为23.30％，由此主配方及添加剂的组成配方0.015wt％CaCO3、0.3wt％Co2O3、0.002wt％SiO2、0.05wt％V2O5、0.02wt％Nb2O5生产的锰锌铁氧提粉料，其谷点温度为97℃，电性能如下：：
实施例3
生产谷点为80℃的宽温低温度系数锰锌铁氧体，ZnO质量百分比为6.6％，根据附图所提供公式，可以计算得到Fe2O3质量百分比为71.33％，Mn3O4的质量百分比为22.07％，由此主配方及添加剂的组成配方0.015wt％CaCO3、0.3wt％Co2O3、0.002wt％SiO2、0.05wt％V2O5、0.02wt％Nb2O5生产的锰锌铁氧提粉料，其谷点温度为79℃，电性能如下：：
上述实例中的检测参数为，Φ25mm×10mm×5mm规格样环在钟罩炉中平衡气氛烧结后，用E4980A精密LCR表和高低温试验箱对样环进行测试，条件：f＝10kHz、I＝0.8mA、N＝15Ts。
Claims (3)
1.一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法，其特征在于,所述锰锌铁氧体粉料包括主成分和添加剂；所述主成分由Fe2O3、ZnO和Mn3O4组成；所述ZnO占主成分的重量百分比为4～9wt％；
所述Fe2O3占主成分的重量百分比根据公式Fe2O3(wt％)＝72.88-A*ZnO(wt％)计算；其中控制谷点为80℃时，A值为0.2278；其中控制谷点为90℃时，A值为0.2313；其中控制谷点为100℃时，A值为0.2358。
2.根据权利要求1所述的方法，其特征在于,所述添加剂由CaCO3、Co2O3、SiO2、V2O5和Nb2O5组成。
3.根据权利要求1所述的方法，其特征在于,所述添加剂由0.015～0.05wt％CaCO3、0.1～0.4wt％Co2O3、0.001～0.005wt％SiO2、0.02～0.07wt％V2O5和0.02～0.07wt％Nb2O5组成；所述百分比均为占所述主成分的重量百分比。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098243A1 (zh) | 2019-11-20 | 2021-05-27 | 横店集团东磁股份有限公司 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
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| CN114634356A (zh) * | 2022-03-14 | 2022-06-17 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | 一种1MHz下超低损耗锰锌铁氧体材料及其制备方法 |
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