CN110642615A - 一种永磁铁氧体磁性材料的制备方法 - Google Patents

一种永磁铁氧体磁性材料的制备方法 Download PDF

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CN110642615A
CN110642615A CN201911025311.2A CN201911025311A CN110642615A CN 110642615 A CN110642615 A CN 110642615A CN 201911025311 A CN201911025311 A CN 201911025311A CN 110642615 A CN110642615 A CN 110642615A
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mixture
presintering
magnetic material
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黄玉攀
于昊龙
鲍承林
黄玉冬
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China Magnetoelectrics Co Ltd
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Abstract

本发明提供一种永磁铁氧体磁性材料的制备方法，涉及磁性材料制备技术领域。该永磁铁氧体磁性材料的制备方法，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80‑100份、碳酸钡6‑8份、硫酸锶4‑6份、碳酸钙3‑5份、三氧化二铬1‑2份、二氧化硅3‑4份、稀土化合物4‑5份、硼化物5‑7份、锰化物3‑7份、氧化铋1‑3份、三氧化钨2‑4份、四氧化三铅1‑1.4份、聚乙烯醇7‑9份、硬脂酸锌8‑9份。通过替换现有技术中的部分材料，使得永磁铁氧体磁性材料在生产过程中的预烧与烧结温度降低，从而在一定程度上节约了燃料，降低了永磁铁氧体磁性材料的生产成本。

Description

一种永磁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技术领域，具体为一种永磁铁氧体磁性材料的制备方法。
背景技术
永磁铁氧体磁性材料又包括有钡铁氧体和锶铁氧体，电阻率高，属于半导体类型，故涡流损耗小，矫顽力大，能有效地应用在大气隙的磁路中，特别适于作小型发电机和电动机的永磁体。永磁铁氧体磁性材料的原材料来源丰富，工艺不复杂，成本低，从而具有较高的性价比，被广泛应用于高功率、高转速、高扭矩的各类电机，如高档汽车电机、摩托车启动电机、家用电器以及电动工具马达等领域。
目前，为了提高永磁铁氧体的综合磁性能或者提高某些方面的特性性能，主要采用的解决办法是通过改善用来制备永磁铁氧体磁性材料的组分以及相应的比重，或者改良制备永磁铁氧体磁性材料的生产工艺，虽然在一定程度上提高了永磁铁氧体磁性材料性能，但是现有技术中的生产工艺需要温度较高，使得生产成本增加，且生产的永磁铁氧体磁性材料性能有待进一步提高。
发明内容
(一)解决的技术问题
针对现有技术的不足，本发明提供了一种永磁铁氧体磁性材料的制备方法，解决了现有技术中的生产工艺需要温度较高，使得生产成本增加，且生产的永磁铁氧体磁性材料性能有待进一步提高的问题。
(二)技术方案
为实现以上目的，本发明通过以下技术方案予以实现：一种永磁铁氧体磁性材料的制备方法，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80-100份、碳酸钡6-8份、硫酸锶4-6份、碳酸钙3-5份、三氧化二铬1-2份、二氧化硅3-4份、稀土化合物4-5份、硼化物5-7份、锰化物3-7份、氧化铋1-3份、三氧化钨2-4份、四氧化三铅1-1.4份、聚乙烯醇7-9份、硬脂酸锌8-9份；
所述制备方法包括以下步骤：
S1.按照比例准备好各项原材料；
S2.将氧化铋、三氧化钨与四氧化三铅充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为600-800℃，预烧时间为30-60min，预烧完毕之后取出自然冷却，得到添加料；
S3.将三氧化二铁、碳酸钡、硫酸锶与碳酸钙充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为900-1050℃，预烧时间为45-80min，预烧完毕之后取出自然冷却，冷却至室温之后利用球磨机对其进行研磨，控制研磨之后的粒径为3-5μm，即可得到主料；
S4.将主料、添加料、三氧化二铬、二氧化硅、稀土化合物、硼化物与锰化物充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为1100-1200℃，预烧时间为2-3小时，预烧完毕之后取出自然冷却，得到混合料A；
S5.将混合料A置于球磨机对其进行研磨，控制研磨之后的粒径为0.9-1.1μm，然后往粉末之后的混合料A中加入聚乙烯醇与硬脂酸锌，并将其搅拌均匀，得到混合料B；
S6.将混合料B置于模具中，对其进行加压成型，然后将成型的物料送入到回转窑中进行烧结，烧结温度为80-100℃，烧结时间为30-60min，烧结完毕之后取出自然冷却，得到永磁铁氧体磁性材料。
优选的，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80份、碳酸钡6份、硫酸锶4份、碳酸钙3份、三氧化二铬1份、二氧化硅3份、稀土化合物4份、硼化物5份、锰化物3份、氧化铋1份、三氧化钨2份、四氧化三铅1份、聚乙烯醇7份、硬脂酸锌8份。
优选的，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁90份、碳酸钡7份、硫酸锶5份、碳酸钙4份、三氧化二铬1.5份、二氧化硅3.5份、稀土化合物4.5份、硼化物6份、锰化物5份、氧化铋2份、三氧化钨3份、四氧化三铅1.2份、聚乙烯醇8份、硬脂酸锌8.5份。
优选的，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁100份、碳酸钡8份、硫酸锶6份、碳酸钙5份、三氧化二铬2份、二氧化硅4份、稀土化合物5份、硼化物7份、锰化物7份、氧化铋3份、三氧化钨4份、四氧化三铅1.4份、聚乙烯醇9份、硬脂酸锌9份。
(三)有益效果
本发明提供了一种永磁铁氧体磁性材料的制备方法。具备以下有益效果：
1、该永磁铁氧体磁性材料的制备方法，通过替换现有技术中的部分材料，使得永磁铁氧体磁性材料在生产过程中的预烧与烧结温度降低，从而在一定程度上节约了燃料，降低了永磁铁氧体磁性材料的生产成本。
2、该永磁铁氧体磁性材料的制备方法，通过替换以及增加制备永磁铁氧体磁性材料的部分材料，使得永磁铁氧体磁性材料的性能进一步得到了提高，同时也延长了永磁铁氧体磁性材料的使用寿命。
具体实施方式
下面将结合本发明实施例，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。
实施例一：
本发明实施例提供一种永磁铁氧体磁性材料的制备方法，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80份、碳酸钡6份、硫酸锶4份、碳酸钙3份、三氧化二铬1份、二氧化硅3份、稀土化合物4份、硼化物5份、锰化物3份、氧化铋1份、三氧化钨2份、四氧化三铅1份、聚乙烯醇7份、硬脂酸锌8份；
所述制备方法包括以下步骤：
S1.按照比例准备好各项原材料；
S2.将氧化铋、三氧化钨与四氧化三铅充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为600-800℃，预烧时间为30-60min，预烧完毕之后取出自然冷却，得到添加料；
S3.将三氧化二铁、碳酸钡、硫酸锶与碳酸钙充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为900-1050℃，预烧时间为45-80min，预烧完毕之后取出自然冷却，冷却至室温之后利用球磨机对其进行研磨，控制研磨之后的粒径为3-5μm，即可得到主料；
S4.将主料、添加料、三氧化二铬、二氧化硅、稀土化合物、硼化物与锰化物充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为1100-1200℃，预烧时间为2-3小时，预烧完毕之后取出自然冷却，得到混合料A；
S5.将混合料A置于球磨机对其进行研磨，控制研磨之后的粒径为0.9-1.1μm，然后往粉末之后的混合料A中加入聚乙烯醇与硬脂酸锌，并将其搅拌均匀，得到混合料B；
S6.将混合料B置于模具中，对其进行加压成型，然后将成型的物料送入到回转窑中进行烧结，烧结温度为80-100℃，烧结时间为30-60min，烧结完毕之后取出自然冷却，得到永磁铁氧体磁性材料。
实施例二：
本发明实施例提供一种永磁铁氧体磁性材料的制备方法，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁90份、碳酸钡7份、硫酸锶5份、碳酸钙4份、三氧化二铬1.5份、二氧化硅3.5份、稀土化合物4.5份、硼化物6份、锰化物5份、氧化铋2份、三氧化钨3份、四氧化三铅1.2份、聚乙烯醇8份、硬脂酸锌8.5份；
所述制备方法包括以下步骤：
S1.按照比例准备好各项原材料；
S2.将氧化铋、三氧化钨与四氧化三铅充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为600-800℃，预烧时间为30-60min，预烧完毕之后取出自然冷却，得到添加料；
S3.将三氧化二铁、碳酸钡、硫酸锶与碳酸钙充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为900-1050℃，预烧时间为45-80min，预烧完毕之后取出自然冷却，冷却至室温之后利用球磨机对其进行研磨，控制研磨之后的粒径为3-5μm，即可得到主料；
S4.将主料、添加料、三氧化二铬、二氧化硅、稀土化合物、硼化物与锰化物充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为1100-1200℃，预烧时间为2-3小时，预烧完毕之后取出自然冷却，得到混合料A；
S5.将混合料A置于球磨机对其进行研磨，控制研磨之后的粒径为0.9-1.1μm，然后往粉末之后的混合料A中加入聚乙烯醇与硬脂酸锌，并将其搅拌均匀，得到混合料B；
S6.将混合料B置于模具中，对其进行加压成型，然后将成型的物料送入到回转窑中进行烧结，烧结温度为80-100℃，烧结时间为30-60min，烧结完毕之后取出自然冷却，得到永磁铁氧体磁性材料。
实施例三：
本发明实施例提供一种永磁铁氧体磁性材料的制备方法，所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁100份、碳酸钡8份、硫酸锶6份、碳酸钙5份、三氧化二铬2份、二氧化硅4份、稀土化合物5份、硼化物7份、锰化物7份、氧化铋3份、三氧化钨4份、四氧化三铅1.4份、聚乙烯醇9份、硬脂酸锌9份；
所述制备方法包括以下步骤：
S1.按照比例准备好各项原材料；
S2.将氧化铋、三氧化钨与四氧化三铅充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为600-800℃，预烧时间为30-60min，预烧完毕之后取出自然冷却，得到添加料；
S3.将三氧化二铁、碳酸钡、硫酸锶与碳酸钙充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为900-1050℃，预烧时间为45-80min，预烧完毕之后取出自然冷却，冷却至室温之后利用球磨机对其进行研磨，控制研磨之后的粒径为3-5μm，即可得到主料；
S4.将主料、添加料、三氧化二铬、二氧化硅、稀土化合物、硼化物与锰化物充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为1100-1200℃，预烧时间为2-3小时，预烧完毕之后取出自然冷却，得到混合料A；
S5.将混合料A置于球磨机对其进行研磨，控制研磨之后的粒径为0.9-1.1μm，然后往粉末之后的混合料A中加入聚乙烯醇与硬脂酸锌，并将其搅拌均匀，得到混合料B；
S6.将混合料B置于模具中，对其进行加压成型，然后将成型的物料送入到回转窑中进行烧结，烧结温度为80-100℃，烧结时间为30-60min，烧结完毕之后取出自然冷却，得到永磁铁氧体磁性材料。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (4)

1.一种永磁铁氧体磁性材料的制备方法，其特征在于：所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80-100份、碳酸钡6-8份、硫酸锶4-6份、碳酸钙3-5份、三氧化二铬1-2份、二氧化硅3-4份、稀土化合物4-5份、硼化物5-7份、锰化物3-7份、氧化铋1-3份、三氧化钨2-4份、四氧化三铅1-1.4份、聚乙烯醇7-9份、硬脂酸锌8-9份；
所述制备方法包括以下步骤：
S1.按照比例准备好各项原材料；
S2.将氧化铋、三氧化钨与四氧化三铅充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为600-800℃，预烧时间为30-60min，预烧完毕之后取出自然冷却，得到添加料；
S3.将三氧化二铁、碳酸钡、硫酸锶与碳酸钙充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为900-1050℃，预烧时间为45-80min，预烧完毕之后取出自然冷却，冷却至室温之后利用球磨机对其进行研磨，控制研磨之后的粒径为3-5μm，即可得到主料；
S4.将主料、添加料、三氧化二铬、二氧化硅、稀土化合物、硼化物与锰化物充分搅拌混合，将混合物置于回转窑中进行预烧，预烧温度为1100-1200℃，预烧时间为2-3小时，预烧完毕之后取出自然冷却，得到混合料A；
S5.将混合料A置于球磨机对其进行研磨，控制研磨之后的粒径为0.9-1.1μm，然后往粉末之后的混合料A中加入聚乙烯醇与硬脂酸锌，并将其搅拌均匀，得到混合料B；
S6.将混合料B置于模具中，对其进行加压成型，然后将成型的物料送入到回转窑中进行烧结，烧结温度为80-100℃，烧结时间为30-60min，烧结完毕之后取出自然冷却，得到永磁铁氧体磁性材料。
2.根据权利要求1所述的一种永磁铁氧体磁性材料的制备方法，其特征在于：所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁80份、碳酸钡6份、硫酸锶4份、碳酸钙3份、三氧化二铬1份、二氧化硅3份、稀土化合物4份、硼化物5份、锰化物3份、氧化铋1份、三氧化钨2份、四氧化三铅1份、聚乙烯醇7份、硬脂酸锌8份。
3.根据权利要求1所述的一种永磁铁氧体磁性材料的制备方法，其特征在于：所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁90份、碳酸钡7份、硫酸锶5份、碳酸钙4份、三氧化二铬1.5份、二氧化硅3.5份、稀土化合物4.5份、硼化物6份、锰化物5份、氧化铋2份、三氧化钨3份、四氧化三铅1.2份、聚乙烯醇8份、硬脂酸锌8.5份。
4.根据权利要求1所述的一种永磁铁氧体磁性材料的制备方法，其特征在于：所述永磁铁氧体磁性材料包括以下重量份的成分组成：三氧化二铁100份、碳酸钡8份、硫酸锶6份、碳酸钙5份、三氧化二铬2份、二氧化硅4份、稀土化合物5份、硼化物7份、锰化物7份、氧化铋3份、三氧化钨4份、四氧化三铅1.4份、聚乙烯醇9份、硬脂酸锌9份。
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