CN107986773B - 一种锰锌铁氧体球料 - Google Patents

一种锰锌铁氧体球料 Download PDF

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CN107986773B
CN107986773B CN201711250939.3A CN201711250939A CN107986773B CN 107986773 B CN107986773 B CN 107986773B CN 201711250939 A CN201711250939 A CN 201711250939A CN 107986773 B CN107986773 B CN 107986773B
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ball material
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zinc ferrite
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黄有东
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Nantong Sanjia Magnetic Industry Co ltd
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Changshu Sanjia Magnetic Co ltd
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Abstract

本发明公开了一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4；所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧；所述造球时，螺旋送料机的调频电机的频率为43‑50Hz；所述喷水时的喷头使用为8‑10个。通过上述方式，本发明能够显著提高锰锌铁氧体球料的密度和磁化度，改善球料的外观，同时有利于改善球料的物理和化学性能，可以避免产品的粘连，提高产品的电性能，进一步提高产品的合格率，降低生产成本。

Description

一种锰锌铁氧体球料
技术领域
本发明涉及锰锌铁氧体领域，特别是涉及一种锰锌铁氧体球料。
背景技术
目前，磁性材料已成为电子变压器的主导产品，广泛用于计算机、家用电器、逆变弧焊机、网络通讯、汽车等领域，电子产品更新换代速度加快，要求产品向环保型、节能型和高效化方向发展。这样就要求锰锌铁氧体颗粒在加工过程中，成本低，粉尘少，质量高。又要保持原来的物理和化学性能，给铁氧体球体加工带来难度。原来球料的密度在2.2-2.5g/cm3，球料的磁化度为0.9-1.2uH/g，表现出球料表面不光滑，粉尘多，在回转窑预烧后磁化度低等问题，在后道工序加工的过程中，造成产品的电性能降低、外观粘连变形等质量缺陷，已无法满足客户的使用要求。
发明内容
本发明主要解决的技术问题是：针对现有技术的不足，提供一种锰锌铁氧体球料，能够显著提高锰锌铁氧体球料的密度和磁化度，改善球料的外观，同时有利于改善球料的物理和化学性能，可以避免产品的粘连，提高产品的电性能，进一步提高产品的合格率，降低生产成本。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O352.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4；所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧；所述造球时，螺旋送料机的调频电机的频率为43-50Hz；所述喷水时的喷头使用为8-10个。
在本发明一个较佳实施例中，所述预烧时的温度为960-980℃。
在本发明一个较佳实施例中，所述锰锌铁氧体球料的密度为2.6-2.75g/cm3，含水量为12-15%。
在本发明一个较佳实施例中，所述预烧后球料的饱和磁化强度为1.5-2.0uH/g。
在本发明一个较佳实施例中，所述锰锌铁氧体球料的细粉含量为2-3%。
在本发明一个较佳实施例中，所述喷水过程中加入了PEG粘结剂，浓度为4-5%。
在本发明一个较佳实施例中，所述振磨时振磨机的振动频率为28Hz。
本发明的有益效果是：通过工艺的合理优化，能够显著提高锰锌铁氧体球料的密度和磁化度，改善球料的外观，同时有利于改善球料的物理和化学性能，可以避免产品的粘连，提高产品的电性能，进一步提高产品的合格率，降低生产成本。
具体实施方式
下面对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
实施例一
一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
为保证其主体含量能够充分混匀，偏差小，有利于充分固相反应，我们将这三种原材料Fe2O3、Mn3O4和ZnO先粗混：1/2 Fe2O3、1/2 Mn3O4、ZnO、1/2 Mn3O4、1/2 Fe2O3，再通过振磨、送料、喷水、造球和预烧工序，加工而成。为控制球料的含水量和密度，我们在造球工序，将螺旋送料机的电机改成调频电机，以便控制送料量的大小，喷水量的喷头由8个增加到10个，以保证其加水量的均匀和调节含水量的多少。将调频电机的频率放在50Hz，喷水的喷头使用10个，其加工成的球料的参数为：密度2.3-2.4g/cm3、细粉含量为5-7%，含水量为8-10%，
取这种球料1000Kg，经过回转窑预烧，预烧温度980℃，取样品编号1#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度和主体含量，使用X射线荧光分析仪ZSX-Ⅱ测基本含量，具体数值见表1：
表1
Figure 230155DEST_PATH_IMAGE001
实施例二
一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在45Hz，喷水时的喷头使用10个，其加工成球料的参数为：其球料密度2.4-2.5g/cm3、细粉含量为5-7%，含水量为10-12%。
取这种球料1000Kg，经过回转窑预烧，预烧温度980℃，取样品编号2#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表2：
表2
Figure 114935DEST_PATH_IMAGE002
实施例三
一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在43Hz，喷水时的喷头使用10个，其加工成球料的参数为：其球料密度2.5-2.6g/cm3、细粉含量为5-7%，含水量为12-15%。
取这种球料1000Kg，经过回转窑预烧，预烧温度980℃，取样品编号3#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表3：
表3
Figure 195017DEST_PATH_IMAGE003
实施例四
一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在43Hz，喷水时的喷头使用8个，其加工成球料的参数为：其球料密度2.6-2.75g/cm3、细粉含量为5-7%，含水量为10-12%。
取这种球料1000Kg，经过回转窑预烧，预烧温度980℃，取样品编号4#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表4：
表4
Figure 393918DEST_PATH_IMAGE004
实施例五
根据实施例四的样品数值结果：虽然球料的磁化度符合标准要求。但是，经对预烧球料用20目的筛网过筛，细粉偏多，炸球较多，影响预烧的产量和内在的电性能，存在化学反应不均匀的现象，用显微镜观察球的表面仍不光滑。我们在喷水工序中，加入PEG粘结剂液体，其液体的浓度由4-5%，其它工序的生产工艺同实施例四一样：一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O352.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在43Hz，喷水时的喷头使用8个，其加工成球料的参数为：其球料密度2.6-2.75g/cm3、细粉含量为3-5%，含水量为10-12%。
取这种球料1000Kg，经过回转窑预烧，预烧温度980℃，取样品编号5#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表5：
表5
Figure 125113DEST_PATH_IMAGE005
实施例六
根据实施例五：球料的磁化度超出了标准要求，经对球料用20目的筛网过筛，还有少量的细粉，存在炸球现象，我们又将预烧工序中的温度由980℃降到960℃，其它工序的生产工艺同实施例五一样：一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在43Hz，喷水时的喷头使用8个，其加工成球料的参数为：其球料密度2.6-2.75g/cm3、细粉含量为3-5%，含水量为10-12%。
取这种球料1000Kg，经过回转窑预烧，预烧温度960℃，取样品编号6#，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表6：
表6
Figure 430061DEST_PATH_IMAGE006
实施例七
根据实施例六：球料的磁化度已经符合标准要求，经对球料外观用显微镜观察，表面还不光滑，亮度不够，同时用20目的筛网过筛，细粉含量为3.5%，说明存在少量的炸球现象，我们又在振磨工序中，将振磨机的振动频率设定为28Hz，使振料的的粒度D50变小，由1.0-1.2um，变为0.7-0.9um，其它工序的生产工艺同实施例六一样：一种锰锌铁氧体球料，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O352.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4。
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧。在造球工序, 将螺旋送料机的调频电机频率放在43Hz，喷水时的喷头使用8个，其加工成球料的参数为：其球料密度2.6-2.75g/cm3、细粉含量为2-3%，含水量为10-12%。
取这种球料1000Kg，经过回转窑预烧，预烧温度960℃，取样品编号7#，经显微镜观察球料外观光滑，过20目的筛网，细粉含量为1.5%，使用型号为UC2852LCR的电感电桥测试仪，测其饱和磁化强度，具体数值见表7：
表7
Figure 184391DEST_PATH_IMAGE007
从上述测试的数据中可以看出，样品6#、7#已达到锰锌铁氧体球料的密度和饱和磁化强度的要求，但6#样品还存在细粉偏多、球料表面不光滑等问题，存在炸球现象，7#样品经过振磨工艺的改进，达到预期的效果，不但提高了预烧的班产量，还降低了预烧温度，节约了能源。这种球料加工的颗粒，经客户使用后，产品外观无粘连、变形等质量问题，产品的电性能（见表8）也得到提高，产品密度也得到提高，合格率得到大幅度的提高，显示优良的球料特性。
表8
Figure 983720DEST_PATH_IMAGE008
综上所述，我们经过对锰锌铁氧体球料一系列的试验和改良，球料的密度和饱和磁化强度，逐步得到提高，球料的外观由不光滑变得光滑，细粉也得到减少，增加了球料在预烧中的流动性，提高了预烧球的班产量，降低了生产成本。同时，又降低预烧温度，节能降耗。球料通过加工后的颗粒，解决了客户产品粘连、变形，满足了客户的使用要求满足了客户的使用要求。
本发明揭示了一种锰锌铁氧体球料，通过工艺的合理优化，能够显著提高锰锌铁氧体球料的密度和磁化度，改善球料的外观，同时有利于改善球料的物理和化学性能，可以避免产品的粘连，提高产品的电性能，进一步提高产品的合格率，降低生产成本。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (2)

1.一种锰锌铁氧体球料，其特征在于，所述锰锌铁氧体球料是由Fe2O3、Mn3O4和ZnO三种原料制备而成的，其含量分别为：Fe2O3 52.5～53.8mol%、ZnO 7～11.5mol%、剩余为Mn3O4；
所述锰锌铁氧体球料的制备方法依次包括：生产配料、振磨、送料、喷水、造球和预烧；所述生产配量时将这三种原材料Fe2O3、Mn3O4和ZnO先粗混：1/2 Fe2O3、1/2 Mn3O4、ZnO、1/2Mn3O4、1/2 Fe2O3；所述造球时，螺旋送料机的调频电机的频率为43-50Hz；所述喷水时的喷头使用为8-10个；所述锰锌铁氧体球料的密度为2.6-2.75g/cm3，含水量为12-15%；
所述喷水过程中加入了PEG粘结剂，浓度为4-5%；所述预烧时的温度为960℃；所述振磨时振磨机的振动频率为28Hz，使振粒的粒度D50为0.7～0.9μm，所述锰锌铁氧体球料的细粉含量为2-3%。
2.根据权利要求1所述的锰锌铁氧体球料，其特征在于，所述预烧后球料的饱和磁化强度为1.5-2.0uH/g。
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