CN108424135A - 一种铁氧体磁性材料的制备方法 - Google Patents

一种铁氧体磁性材料的制备方法 Download PDF

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CN108424135A
CN108424135A CN201810204299.0A CN201810204299A CN108424135A CN 108424135 A CN108424135 A CN 108424135A CN 201810204299 A CN201810204299 A CN 201810204299A CN 108424135 A CN108424135 A CN 108424135A
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magnetic material
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洪路
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Haining Tianfeng Magnetic Industry Co Ltd
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Abstract

本发明公开了一种铁氧体磁性材料的制备方法，包括如下步骤：S1、配料：采用磁铁矿结合BaO·6Fe2O3、MnO·Fe2O3·ZnO·Fe2O3、述三氧化二硼、氧化镁、高岭土、环氧树脂、氧化锌、石英石、氧化铜和三氧化二铝，算出各种化学原料的具体用量，并将其足够准确地称量出来，并添加硝酸盐对上述材料进行湿润，与现有工艺相比，可以克服原料之间反应不易完善、粉末混合不均匀以及分离不易过细和原料的活性对产品性能影响，从而可以显著提高铁氧体材料的性能，并且可以有效的节约资源，避免浪费现象，同时利用EVA泡棉进行隔离封装，方便后期的拿取使用，具有较高的实用性，适合广泛推广和使用。

Description

一种铁氧体磁性材料的制备方法
技术领域
本发明涉及磁性材料制备工艺，更具体地说，尤其涉及一种铁氧体磁性材料的制备方法。
背景技术
铁氧体是20世纪40年代发展起来的一种新型的非金属磁性材料。由于它的制备工艺和外观很类似陶瓷品，因此有时被称为磁性瓷。铁氧体一般是指铁族的和其他一种或多种适当的金属元素的复合氧化物，属于半导体，它是作为磁性介质而被利用。
铁氧体材料性能的好坏，虽然与原料、配方、成型和烧结等四个环节密切相关，也是铁氧体工艺原理重点研究的问题。但是在同一配方原料与工艺过程下制成的铁氧体材料，其性能却有很大的差别。为此，我们提出一种铁氧体磁性材料的制备方法。
发明内容
本发明的目的是为了解决现有技术中存在的缺点，而提出的一种铁氧体磁性材料的制备方法，提高磁性材料的生产品质及避免资源浪费的制备工艺。
为实现上述目的，本发明提供如下技术方案：一种铁氧体磁性材料的制备方法，包括如下步骤：
S1、配料：采用磁铁矿结合BaO·6Fe2O3、MnO·Fe2O3·ZnO·Fe2O3、述三氧化二硼、氧化镁、高岭土、环氧树脂、氧化锌、石英石、氧化铜和三氧化二铝，算出各种化学原料的具体用量，并将其足够准确地称量出来，并添加硝酸盐对上述材料进行湿润；
S2、球磨混合：根据上述原料颗粒尺寸的大小及粉碎后尺寸大小的要求选用不同的粉碎机械，并采用振动球磨式的球磨机对粉碎后的原料颗粒进行进一步的细磨，再次对粉碎机械和球磨机利用密封箱进行封闭；
S3、预烧：将球磨混合均匀的原料送入烧结炉内部进行预烧处理，其温度控制在500~800℃之间，并且采用硅碳棒加热的电炉进行预烧；
S4、成型：在预烧完成后的原料中加入一定含量的黏合剂，并利用喷雾制粒的方式使预烧后的原料形成混合颗粒，利用冲压机将混合颗粒挤压成型，并且进行切割成块；
S5、生坯封装：将上述切割成块的混合物料放入氮气炉内部加热氮化处理，并且将氮化处理后的混合物料进行隔绝空气密封并进行存放；
S6、热压烧结并检测：将需要加工制作的混合原料取出，置于烧结炉内部再次烧结，其烧结温度在1000~1400℃之间，并且采用真空炉进行烧结，利用机器对烧结产品的金属含量及硬度指标进行检测，达标产品送入下一阶段进行加工，不合格产品再次打回烧结或粉碎重复生产；
S7、机械加工：将上述烧结产品冷却至室温后，针对不同的用途进行切割、打磨和清洗干燥处理。
S8、包装：对加工成型的产品进行再次检测并利用EVA泡棉进行隔离封装，装箱后备用。
优选的，上述预烧结构和热压烧结结构采用封闭结构筒体或加工车间进行放置，将余热充分利用。
优选的，上述热压烧结并检测环节和包装检测环节均可利用DYCST-18型号的磁性测试仪对铁氧体磁性材料进行检测。
本发明的技术效果和优点：与现有工艺相比，可以克服原料之间反应不易完善、粉末混合不均匀以及分离不易过细和原料的活性对产品性能影响，从而可以显著提高铁氧体材料的性能，并且可以有效的节约资源，避免浪费现象，同时可以将生坯进行存放，无需一次加工成型并制造出相对应的产品，进而保证后期磁性材料的使用效果，同时利用EVA泡棉进行隔离封装，方便后期的拿取使用，具有较高的实用性，适合广泛推广和使用。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合具体实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例
一种铁氧体磁性材料的制备方法，包括如下步骤：
S1、配料：采用磁铁矿结合BaO·6Fe2O3、MnO·Fe2O3·ZnO·Fe2O3、述三氧化二硼、氧化镁、高岭土、环氧树脂、氧化锌、石英石、氧化铜和三氧化二铝，算出各种化学原料的具体用量，并将其足够准确地称量出来，并添加硝酸盐对上述材料进行湿润；
S2、球磨混合：根据上述原料颗粒尺寸的大小及粉碎后尺寸大小的要求选用不同的粉碎机械，并采用振动球磨式的球磨机对粉碎后的原料颗粒进行进一步的细磨，再次对粉碎机械和球磨机利用密封箱进行封闭；
S3、预烧：将球磨混合均匀的原料送入烧结炉内部进行预烧处理，其温度控制在500~800℃之间，并且采用硅碳棒加热的电炉进行预烧；
S4、成型：在预烧完成后的原料中加入一定含量的黏合剂，并利用喷雾制粒的方式使预烧后的原料形成混合颗粒，利用冲压机将混合颗粒挤压成型，并且进行切割成块；
S5、生坯封装：将上述切割成块的混合物料放入氮气炉内部加热氮化处理，并且将氮化处理后的混合物料进行隔绝空气密封并进行存放；
S6、热压烧结并检测：将需要加工制作的混合原料取出，置于烧结炉内部再次烧结，其烧结温度在1000~1400℃之间，并且采用真空炉进行烧结，利用机器对烧结产品的金属含量及硬度指标进行检测，达标产品送入下一阶段进行加工，不合格产品再次打回烧结或粉碎重复生产；
S7、机械加工：将上述烧结产品冷却至室温后，针对不同的用途进行切割、打磨和清洗干燥处理。
S8、包装：对加工成型的产品进行再次检测并利用EVA泡棉进行隔离封装，装箱后备用。
综上所述：本发明提供的一种铁氧体磁性材料的制备方法，在现有的工艺条件下，可以克服原料之间反应不易完善、粉末混合不均匀以及分离不易过细和原料的活性对产品性能影响，从而可以显著提高铁氧体材料的性能，并且可以有效的节约资源，避免浪费现象，同时可以将生坯进行存放，无需一次加工成型并制造出相对应的产品，进而保证后期磁性材料的使用效果，同时利用EVA泡棉进行隔离封装，方便后期的拿取使用，具有较高的实用性，适合广泛推广和使用。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (3)

1.一种铁氧体磁性材料的制备方法，其特征在于：包括如下步骤：
S1、配料：采用磁铁矿结合BaO·6Fe2O3、MnO·Fe2O3·ZnO·Fe2O3、述三氧化二硼、氧化镁、高岭土、环氧树脂、氧化锌、石英石、氧化铜和 三氧化二铝，算出各种化学原料的具体用量，并将其足够准确地称量出来，并添加硝酸盐对上述材料进行湿润；
S2、球磨混合：根据上述原料颗粒尺寸的大小及粉碎后尺寸大小的要求选用不同的粉碎机械，并采用振动球磨式的球磨机对粉碎后的原料颗粒进行进一步的细磨，再次对粉碎机械和球磨机利用密封箱进行封闭；
S3、预烧：将球磨混合均匀的原料送入烧结炉内部进行预烧处理，其温度控制在500~800℃之间，并且采用硅碳棒加热的电炉进行预烧；
S4、成型：在预烧完成后的原料中加入一定含量的黏合剂，并利用喷雾制粒的方式使预烧后的原料形成混合颗粒，利用冲压机将混合颗粒挤压成型，并且进行切割成块；
S5、生坯封装：将上述切割成块的混合物料放入氮气炉内部加热氮化处理，并且将氮化处理后的混合物料进行隔绝空气密封并进行存放；
S6、热压烧结并检测：将需要加工制作的混合原料取出，置于烧结炉内部再次烧结，其烧结温度在1000~1400℃之间，并且采用真空炉进行烧结，利用机器对烧结产品的金属含量及硬度指标进行检测，达标产品送入下一阶段进行加工，不合格产品再次打回烧结或粉碎重复生产；
S7、机械加工：将上述烧结产品冷却至室温后，针对不同的用途进行切割、打磨和清洗干燥处理。
2.S8、包装：对加工成型的产品进行再次检测并利用EVA泡棉进行隔离封装，装箱后备用；
根据权利要求1所述的一种铁氧体磁性材料的制备方法，其特征在于：上述预烧结构和热压烧结结构采用封闭结构筒体或加工车间进行放置，将余热充分利用。
3.根据权利要求1所述的一种铁氧体磁性材料的制备方法，其特征在于：上述热压烧结并检测环节和包装检测环节均可利用DYCST-18型号的磁性测试仪对铁氧体磁性材料进行检测。
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