CN113943153A - 一种高储能、耐高温磁芯材料及其制备方法 - Google Patents

一种高储能、耐高温磁芯材料及其制备方法 Download PDF

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CN113943153A
CN113943153A CN202111151242.7A CN202111151242A CN113943153A CN 113943153 A CN113943153 A CN 113943153A CN 202111151242 A CN202111151242 A CN 202111151242A CN 113943153 A CN113943153 A CN 113943153A
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卢春如
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Jiangxi Ruijia Magnetic Electronic Technology Co ltd
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Abstract

本发明涉及一种高储能、耐高温磁芯材料，其原料按重量份计包括：三氧化二铁65‑67份、氧化锌16‑17份、氧化铜4.5‑5.5份、氧化镍12‑13份和添加物，其中，所述添加物为0.3份，其组分包括三氧化二铋，通过上述材料所获得的磁芯材料在使用时，饱和磁束密度提高了13.5％，且温度特性也有明显的改善，即使用温度范围也明显变宽了，且更加稳定。

Description

一种高储能、耐高温磁芯材料及其制备方法
技术领域
本发明涉及氧化磁性材料技术领域，特别涉及一种高储能、耐高温磁芯材料及其制备方法。
背景技术
磁芯材料是由各种氧化铁混合物组成的一种烧结磁性金属氧化物，如锰-锌铁氧体，其具有高磁导率和高磁通密度的特点，且具有较低损耗的特性，但其对工艺要求很高，经过烧结后，对于具有缺陷的组织无法进行二次烧结，现有的镍-锌铁氧体具有极高的阻抗率和不到几百的低磁导率等特性，广泛应用于各种电子设备中，且其对于工艺要求较低，经过烧结后，可对具有缺陷组织进行二次烧结。
但现有的镍-锌铁氧体具有一定的局限性，无法满足市场需求。
发明内容
为了弥补以上不足，本发明提供了一种高储能、耐高温磁芯材料及其制备方法，以解决现有镍-锌铁氧体饱和磁束密度较低，且工作温度范围较窄的技术问题。
本发明的技术方案是：一种高储能、耐高温磁芯材料，其原料按重量份计包括：三氧化二铁65-67份、氧化锌16-17份、氧化铜4.5-5.5份、氧化镍12-13份和添加物，其中，所述添加物为0.3份，且其包括三氧化二铋。
一种高储能、耐高温磁芯的制备方法：称取三氧化二铁、氧化锌、氧化铜、氧化镍和添加物，加入行星式球磨机，进行研磨，所得到粉末，初烧去除粉末中的杂质，通过研磨机细磨，得到粒径不大于0.01mm，之后进行喷雾造粒，并压制成型，具体步骤为：
S1：称取粉末：按照重量份数取三氧化二铁、氧化锌、氧化铜氧化镍和添加物，混合并球磨，得到混合粉末。
S2：初烧：将所述混合粉末置入窑炉内进行初烧，初烧温度不高于1000℃。
S3：研磨：将所述中间产物置入研磨机中进行研磨，其研磨后粒径不大于0.01mm。
S4：喷雾造粒：将S3所得产物进行喷雾造粒，采用离心式喷雾干燥机，制备颗粒的粒径为0.01-0.1mm。
S5：成型：采用粉末压制机对颗粒进行压制，形成所需毛胚。
S6：切削：对毛坯进行切削加工处理，得到“工”字型磁芯。
S7：烧结：对毛胚进行烧结，烧结温度控制在1100-1200℃，保温时长为150-200min。
S8：检验：对磁芯进行检测，检测值包括饱和磁束密度和适用温度。
S9：包装：将检验合格的产品进行封装。
作为优选的技术方案，所述S1中的三氧化二铁纯度不低于99.3％、氧化锌纯度不低于 99.7％、氧化铜纯度不低于98.5％、氧化镍纯度不低于97％，所述添加物中三氧化二铋纯度不低于98％。
作为优选的技术方案，所述S2中初烧温度为910℃-930℃。
作为优选的技术方案，所述S6中采用高速切削加工。
作为优选的技术方案，所述S7中烧结温度为1120℃，保温时长为180min。
作为优选的技术方案，所述S8中饱和磁束密度不低于4100GS，适用温度为零下40℃到 80℃。
本发明的有益效果在于：采用三氧化二铁65-67份、氧化锌16-17份、氧化铜4.5-5.5 份、氧化镍12-13份和添加物，其中，所述添加物为0.3份，其包括三氧化二铋，通过上述材料所获得的磁芯材料在使用时，饱和磁束密度提高了13.5％，且温度特性也有明显的改善，即使用温度范围也明显变宽了，且更加稳定。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。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。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
实施例1：
一种高储能、耐高温磁芯材料，其原料按重量份计包括：三氧化二铁65-67份、氧化锌16-17份、氧化铜4.5-5.5份、氧化镍12-13份和添加物，其中，所述添加物为0.3份，其组分包括三氧化二铋。
所述磁芯的制备方法如下：称取上述三氧化二铁66.2份、氧化锌16.4份、氧化铜4.8 份、氧化镍12.3份和添加物0.3份，加入行星式球磨机，进行研磨，所得到粉末，初烧去除粉末中的杂质，通过研磨机细磨，得到粒径不大于0.01mm，之后进行喷雾造粒，并压制成型，具体步骤为：
S1：称取粉末：通过电子秤按照重量份数三氧化二铁66.2份、氧化锌16.4份、氧化铜 4.8份、氧化镍12.3份和添加物0.3份，混合并置入行星式球磨机球磨，得到混合粉末，且三氧化二铁纯度不低于99.3％、氧化锌纯度不低于99.7％、氧化铜纯度不低于98.5％、氧化镍纯度不低于97％，所述添加物中三氧化二铋纯度不低于98％。
S2：初烧：将所述混合粉末置入窑炉内进行初烧，初烧去除杂质并且稳定粉末的收缩率，初烧温度不高于1000℃，且无须保护气的保护，具体来讲，初烧温度为920℃。
S3：研磨：将所述中间产物置入研磨机中进行研磨，其研磨后粒径不大于0.01mm。
S4：喷雾造粒：将S3所得产物进行喷雾造粒，采用离心式喷雾干燥机并设置参数，参数包括转速10000r/min、加热功率99kw，制备颗粒的粒径为0.01-0.1mm。
S5：成型：采用粉末压制机对颗粒进行压制，形成所需毛胚。
S6：切削：对毛坯进行切削处理，此处采用高速切削加工处理，切割设备为高速切削加工机，得到“工”字型磁芯。
S7：烧结：对毛胚进行烧结，烧结温度控制在1100-1200℃，保温时长为150-200min，具体来说，其烧结温度为1120℃，保温时长为180min。
S8：检验：对磁芯进行检测，检测值包括饱和磁束密度和适用温度，饱和磁束密度不低于4100GS且适用温度区间为零下40℃到80℃为合格品。
S9：包装：将检验合格的产品进行封装。
实施例2：
一种高储能、耐高温磁芯材料，其原料按重量份计包括：三氧化二铁65-67份、氧化锌 16-17份、氧化铜4.5-5.5份、氧化镍12-13份和添加物，其中，所述添加物为0.3份，其组分包括三氧化二铋。
所述磁芯的制备方法如下：称取上述三氧化二铁65份、氧化锌16份、氧化铜4.5份、氧化镍12份和添加物0.3份，加入行星式球磨机，进行研磨，所得到粉末，初烧去除粉末中的杂质，通过研磨机细磨，得到粒径不大于0.01mm，之后进行喷雾造粒，并压制成型，具体步骤为：
S1：称取粉末：通过电子秤按照重量份数三氧化二铁65份、氧化锌16份、氧化铜4.5份、氧化镍12份和添加物0.3份，混合并置入行星式球磨机球磨，得到混合粉末，且三氧化二铁纯度不低于99.3％、氧化锌纯度不低于99.7％、氧化铜纯度不低于98.5％、氧化镍纯度不低于97％，所述添加物中三氧化二铋纯度不低于98％。
S2：初烧：将所述混合粉末置入窑炉内进行初烧，初烧去除杂质并且稳定粉末的收缩率，初烧温度不高于1000℃，且无须保护气的保护，具体来讲，初烧温度为920℃。
S3：研磨：将所述中间产物置入研磨机中进行研磨，其研磨后粒径不大于0.01mm。
S4：喷雾造粒：将S3所得产物进行喷雾造粒，采用离心式喷雾干燥机并设置参数，参数包括转速10000r/min、加热功率99kw，制备颗粒的粒径为0.01-0.1mm。
S5：成型：采用粉末压制机对颗粒进行压制，形成所需毛胚。
S6：切削：对毛坯进行切削处理，此处采用高速切削加工处理，切割设备为高速切削加工机，得到“工”字型磁芯。
S7：烧结：对毛胚进行烧结，烧结温度控制在1100-1200℃，保温时长为150-200min，具体来说，其烧结温度为1120℃，保温时长为180min。
S8：检验：对磁芯进行检测，检测值包括饱和磁束密度和适用温度，经检验测得本实施例中磁芯的饱和磁束密度为3600-3700GS且适用温度区间为零下13℃到42℃。
实施例3：
一种高储能、耐高温磁芯材料，其原料按重量份计包括：三氧化二铁65-67份、氧化锌 16-17份、氧化铜4.5-5.5份、氧化镍12-13份和添加物，其中，所述添加物为0.3份，其组分包括三氧化二铋。
所述磁芯的制备方法如下：称取上述三氧化二铁67份、氧化锌17份、氧化铜5.5份、氧化镍13份和添加物0.3份，加入行星式球磨机，进行研磨，所得到粉末，初烧去除粉末中的杂质，通过研磨机细磨，得到粒径不大于0.01mm，之后进行喷雾造粒，并压制成型，具体步骤为：
S1：称取粉末：通过电子秤按照重量份数三氧化二铁67份、氧化锌17份、氧化铜5.5份、氧化镍13份和添加物0.3份，混合并置入行星式球磨机球磨，得到混合粉末，且三氧化二铁纯度不低于99.3％、氧化锌纯度不低于99.7％、氧化铜纯度不低于98.5％、氧化镍纯度不低于97％，所述添加物中三氧化二铋纯度不低于98％。
S2：初烧：将所述混合粉末置入窑炉内进行初烧，初烧去除杂质并且稳定粉末的收缩率，初烧温度不高于1000℃，且无须保护气的保护，具体来讲，初烧温度为920℃。
S3：研磨：将所述中间产物置入研磨机中进行研磨，其研磨后粒径不大于0.01mm。
S4：喷雾造粒：将S3所得产物进行喷雾造粒，采用离心式喷雾干燥机并设置参数，参数包括转速10000r/min、加热功率99kw，制备颗粒的粒径为0.01-0.1mm。
S5：成型：采用粉末压制机对颗粒进行压制，形成所需毛胚。
S6：切削：对毛坯进行切削处理，此处采用高速切削加工处理，切割设备为高速切削加工机，得到“工”字型磁芯。
S7：烧结：对毛胚进行烧结，烧结温度控制在1100-1200℃，保温时长为150-200min，具体来说，其烧结温度为1120℃，保温时长为180min。
S8：检验：对磁芯进行检测，检测值包括饱和磁束密度和适用温度，经检验测得本实施例中磁芯的饱和磁束密度为3500-3800GS且适用温度区间为零下10℃到48℃。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的仅为本发明的优选例，并不用来限制本发明，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

1.一种高储能、耐高温磁芯材料，其特征在于：其原料按重量份计包括：三氧化二铁65-67份、氧化锌16-17份、氧化铜4.5-5.5份、氧化镍12-13份和添加物。
2.如权利要求1所述的高储能、耐高温磁芯材料，其特征在于：所述添加物为0.3份，所述添加物包括三氧化二铋。
3.一种高储能、耐高温磁芯的制备方法，其特征在于：采用如权利要求1-2任一项所述的高储能、耐高温磁芯材料及其配比制备，包括如下步骤：
S1：称取粉末：按照重量份数取三氧化二铁、氧化锌、氧化铜氧化镍和添加物，混合并球磨，得到混合粉末；
S2：初烧：将所述混合粉末置入窑炉内进行初烧，初烧温度不高于1000℃；
S3：研磨：将所述中间产物置入研磨机中进行研磨，其研磨后粒径不大于0.01mm；
S4：喷雾造粒：将S3所得产物进行喷雾造粒，采用离心式喷雾干燥机，制备颗粒的粒径为0.01-0.1mm；
S5：成型：采用粉末压制机对颗粒进行压制，形成所需毛胚；
S6：切削：对毛坯进行切削加工处理，得到“工”字型磁芯；
S7：烧结：对毛胚进行烧结，烧结温度控制在1100-1200℃，保温时长为150-200min；
S8：检验：对磁芯进行检测，检测值包括饱和磁束密度和适用温度；
S9：包装：将检验合格的产品进行封装。
4.如权利要求3所述的高储能、耐高温磁芯的制备方法，其特征在于：所述S1中的三氧化二铁纯度不低于99.3％、氧化锌纯度不低于99.7％、氧化铜纯度不低于98.5％、氧化镍纯度不低于97％，所述添加物中三氧化二铋纯度不低于98％。
5.如权利要求3所述的高储能、耐高温磁芯的制备方法，其特征在于：所述S2中初烧温度为910℃-930℃。
6.如权利要求3所述的高储能、耐高温磁芯的制备方法，其特征在于：所述S6中采用高速切削加工。
7.如权利要求3所述的高储能、耐高温磁芯的制备方法，其特征在于：所述S7中烧结温度为1120℃，保温时长为180min。
8.如权利要求3所述的高储能、耐高温磁芯的制备方法，其特征在于：所述S8中饱和磁束密度不低于4100GS，适用温度为零下40℃到80℃。
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