CN106495679A - 低损耗粉料jf95b生产方法 - Google Patents

低损耗粉料jf95b生产方法 Download PDF

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CN106495679A
CN106495679A CN201610900761.1A CN201610900761A CN106495679A CN 106495679 A CN106495679 A CN 106495679A CN 201610900761 A CN201610900761 A CN 201610900761A CN 106495679 A CN106495679 A CN 106495679A
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jf95b
low
powder
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刘洪建
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Jingshi Magnetic Materials & Element Engineering Tech Research Co Ltd
Wuxi Spinel Magnetics Co Ltd
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Jingshi Magnetic Materials & Element Engineering Tech Research Co Ltd
Wuxi Spinel Magnetics Co Ltd
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Abstract

本发明公开了一种低损耗粉料JF95B生产方法，包括配料混合‑轧片‑预烧‑黑振‑砂磨‑喷雾造粒，配料由下述含量的物质构成：Fe2O3 53～56mol%、ZnO 10～13mol%，余下的为MnO。本发明具有以下优点：对制粉工序的主配方进行了调整，同时辅以干法制粉工艺，预烧阶段采用了特殊的工艺方法，砂磨时间进行了调整，使所生产出来的锰锌铁氧体功率类功率损耗降低，解决了高频变压器的发热问题，让各类电磁和电感设备在长时间、恶劣的环境下仍能稳定地工作。

Description

低损耗粉料JF95B生产方法
技术领域
本发明涉及锰锌铁氧体功率类粉料生产技术领域，尤其是一种低损耗粉料JF95B生产方法。
背景技术
随着电力、电子技术的不断进步，电子整机系统向小型轻量化、多功能化、平面贴装化、集成数字化以及智能模块化方向发展。要实现这一目标，变压器高频化是重要的技术途径，必然要求变压器也要实现小型轻量化、智能模块化。这些高性能要求也对变压器中的核心--磁芯提出了更高的要求，其中最重要的就是磁芯的功率损耗要降低，通电以后的发热性要低，否则容易产生电磁性能的不稳定，严重时会出现烧机等事故；当前实现高频变压器的核心，是降低MnZn铁氧体材料的功率损耗。这种应用的优势不仅仅体现在小型、轻量及智能模块化，更重要的是提高了转换效率，使变压器自身的损耗大大降低，电能节约显著。
发明内容
本发明针对现有技术的不足，提出一种低损耗粉料JF95B生产方法，操作简便，功率损耗降低。
为了实现上述发明目的，本发明提供以下技术方案：一种低损耗粉料JF95B生产方法，包括配料混合-轧片-预烧-黑振-砂磨-喷雾造粒，配料由下述含量的物质构成：Fe2O353～56mol%、ZnO 10～13mol%，余下的为MnO。
进一步地，砂磨步骤中，添加以下含量的物质：CaCO3 0～500PPm、V2O5 0～200PPm、Nb2O5 0～500PPm、ZrO2 0～200PPm、Co2O3 0～5000PPm、NiO 0～200PPm。
进一步地，砂磨时间为130min。
进一步地，预烧温度为850℃～950℃。
进一步地，预烧是在通入氮气下进行。
与现有技术相比，本发明具有以下优点：对制粉工序的主配方进行了调整，同时辅以干法制粉工艺，预烧阶段采用了特殊的工艺方法，砂磨时间进行了调整，使所生产出来的锰锌铁氧体功率类功率损耗降低，解决了高频变压器的发热问题，让各类电磁和电感设备在长时间、恶劣的环境下仍能稳定地工作。
具体实施方式
下面结合实施例对本发明进行详细描述，本部分的描述仅是示范性和解释性，不应对本发明的保护范围有任何的限制作用。
一种低损耗粉料JF95B生产方法，其工艺过程：配料混合-轧片-预烧-黑振-砂磨-喷雾造粒；其中采用配方包括：Fe2O3(53～56mol%) ZnO（10～13mol%）余下的为MnO。
在砂磨工序进行添加进去如下重量含量的成分：CaCO3 0～500PPm；V2O5 0～200PPm；Nb2O5 0～500PPm；ZrO2 0～200PPm；Co2O3 0～5000PPm；NiO 0～200PPm。
预烧温度为850℃～950℃，在通入氮气下进行。
本发明通过在干法制粉工序，对主配方和预烧的控制，辅以粉料生产砂磨阶段工艺的改变，得到粉料颗粒成型特性、磁化度和平均粒度等符合要求的粉料，解决了MnZn铁氧体材料高频化功率损耗降低的生产难题。
本发明在干法制粉工序预烧和砂磨阶段，通过调节预烧窑炉各变频器的频率；提高预烧温度；在预烧时通入适量的氮气，改变预烧的气氛，控制不同预烧温度的氧含量；在砂磨阶段对砂磨时间进行调整，由100分钟增加到130分钟，在不改变粉料成型特性的同时，适当增强粉料的活性。
表一为普通粉料的各项控制参数、检测数据，以及使用该粉料所生产的H25*15*7.5磁环的各项电性能检测数据；
表二为本发明粉料的各项控制参数、检测数据，以及使用本发明粉料所生产的H25*15*7.5磁环的各项电性能检测数据；
采用本发明的配方及添加成分的产品，晶粒细密，高频功耗有所降低。
采用本发明通过配方及添加成分的控制可以使产品有稳定的功率损耗-温度曲线；同时本发明通过添加成分的改变，可以使μa、Bs、Hc、Br值控制在所需范围。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (5)

1.一种低损耗粉料JF95B生产方法，包括配料混合-轧片-预烧-黑振-砂磨-喷雾造粒，其特征在于：配料由下述含量的物质构成：Fe2O3 53～56mol%、ZnO 10～13mol%，余下的为MnO。
2.如权利要求1所述低损耗粉料JF95B生产方法，其特征在于：砂磨步骤中，添加以下含量的物质：CaCO3 0～500PPm、V2O5 0～200PPm、Nb2O5 0～500PPm、ZrO2 0～200PPm、Co2O30～5000PPm、NiO 0～200PPm。
3.如权利要求1或2所述低损耗粉料JF95B生产方法，其特征在于：砂磨时间为130min。
4.如权利要求1所述低损耗粉料JF95B生产方法，其特征在于：预烧温度为850℃～950℃。
5.如权利要求1所述低损耗粉料JF95B生产方法，其特征在于：预烧是在通入氮气下进行。
CN201610900761.1A 2016-10-17 2016-10-17 低损耗粉料jf95b生产方法 Pending CN106495679A (zh)

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