CN107285758A - 一种合金磁性材料及其制备工艺 - Google Patents

一种合金磁性材料及其制备工艺 Download PDF

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CN107285758A
CN107285758A CN201710467260.3A CN201710467260A CN107285758A CN 107285758 A CN107285758 A CN 107285758A CN 201710467260 A CN201710467260 A CN 201710467260A CN 107285758 A CN107285758 A CN 107285758A
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王飞
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Hefei Bo Tai Tai Electronic Technology Co Ltd
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Abstract

本发明公开了一种合金磁性材料及其制备工艺，包括以下原料：四氧化三铁、氧化铁、三氧化二铝、氧化铜、氧化锌、二氧化硅、氧化锶、氧化镍、氧化高钴和硬脂酸镁。其制备工艺是先将原料混合研磨，得混合料；再将所述混合料置于感应炉中熔炼得合金锭；之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉；最后将所述合金粉经磁场成形、烧结以及退火后即可。该种合金磁性材料具有良好的导磁性能、耐高温性能、且其矫顽力也具有显著的提升，其制备工艺简单，生产成本低，适宜大规模量产。

Description

一种合金磁性材料及其制备工艺
技术领域
本发明属于磁性材料领域，具体涉及一种合金磁性材料及其制备工艺。
背景技术
磁性材料，通常所说的磁性材料是指强磁性物质，是古老而用途十分广泛的功能材料，而物质的磁性早在3000年以前就被人们所认识和应用，例如中国古代用天然磁铁作为指南针。现代磁性材料已经广泛的用在我们的生活之中，例如将永磁材料用作马达，应用于变压器中的铁心材料，作为存储器使用的磁光盘，计算机用磁记录软盘等。大比特资讯上说，磁性材料与信息化、自动化、机电一体化、国防、国民经济的方方面面紧密相关。而通常认为，磁性材料是指由过度元素铁、钴、镍及其合金等能够直接或间接产生磁性的物质。磁性材料按磁化后去磁的难易可分为软磁性材料和硬磁性材料。磁化后容易去掉磁性的物质叫软磁性材料，不容易去磁的物质叫硬磁性材料。一般来讲软磁性材料剩磁较小，硬磁性材料剩磁较大。
目前，随着信息技术的不断发展，电子整机系统向小型轻量化、平面贴装化等方向发展，开关电源的高频化是其中重要的技术途径，对于一般的应用要求绿色、高效能的要求越来越高，而更为重要的是为了适应全球不同环境的应用，要求电源不仅要适应高温的环境，同时也要适应超低温的环境，这样对其中磁性材料的要求也就越来越高，要求磁性材料不仅在高温下、同时在常温甚至在超低温下都有较优越的的性能。
发明内容
针对现有技术中存在的问题，本发明提供了一种合金磁性材料及其制备工艺，该种合金磁性材料具有良好的导磁性能、耐高温性能、且其矫顽力也具有显著的提升，其制备工艺简单，生产成本低，适宜大规模量产。
为了达到上述目的，本发明通过以下技术方案来实现的：
一种合金磁性材料，包括以下按重量份计的原料：四氧化三铁60-80份、氧化铁15-35份、三氧化二铝5-15份、氧化铜10-20份、氧化锌10-20份、二氧化硅4-10份、氧化锶2-8份、氧化镍25-45份、氧化高钴10-30份和硬脂酸镁1-5份。
进一步地，所述合金磁性材料包括以下按重量份计的原料：四氧化三铁65-75份、氧化铁20-30份、三氧化二铝8-12份、氧化铜14-16份、氧化锌14-16份、二氧化硅6-8份、氧化锶4-6份、氧化镍30-40份、氧化高钴15-25份和硬脂酸镁1-3份。
更进一步的，所述合金磁性材料包括以下按重量份计的原料：四氧化三铁70份、氧化铁25份、三氧化二铝10份、氧化铜15份、氧化锌15份、二氧化硅7份、氧化锶5份、氧化镍35份、氧化高钴20份和硬脂酸镁2份。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)按所述重量份配比称取原料；
(2)将原料混合研磨，得混合料；
(3)将所述混合料置于感应炉中熔炼得合金锭；
(4)将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉；
(5)最后将所述合金粉经磁场成形、烧结以及退火后即可。
进一步地，在步骤(2)中，所述混合料是通过球磨罐研磨至粒径≤2mm混合制得的。
进一步地，在步骤(3)中，所述感应炉的熔炼温度为1650℃～1850℃，熔炼时间为4～6h。
进一步地，在步骤(4)中，所述合金锭的研磨处理，球磨罐的罐内温度为105-115℃，球磨时间为40-50min，球磨粒径≤1mm。
进一步地，在步骤(5)中，所述烧结温度为480-520℃，烧结时间为1-2h；所述退火是将合金粉加热至680-720℃，保温25-35min。
本发明的有益效果：
(1)本发明的合金磁性材料制备简单，材料成本低，生产成本低，其制备工艺操作流程安全可靠，适宜大规模量产；
(2)本发明的合金磁性材料具有良好的导磁性能、耐高温性能、且其矫顽力也具有显著的提升，其矫顽力可高达284-321KA/m，应用领域广泛，例如：电气工程、计算机通信领域、医疗科技领域、航空航天领域、汽环保领域等。
具体实施方式
下面结合实施例对本发明的具体实施方式作进一步描述，以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1
一种合金磁性材料，包括以下原料：四氧化三铁60kg、氧化铁15kg、三氧化二铝5kg、氧化铜10kg、氧化锌10kg、二氧化硅4kg、氧化锶2kg、氧化镍25kg、氧化高钴10kg和硬脂酸镁1kg。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)先将原料通过球磨罐研磨至粒径≤2mm混匀后制得混合料；
(2)再将所述混合料置于感应炉中熔炼得合金锭，其中，感应炉的熔炼温度为1650℃，熔炼时间为4h；
(3)之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉，其中，球磨罐的罐内温度为105℃，球磨时间为40min，球磨粒径≤1mm；
(4)最后将所述合金粉经磁场成形、烧结以及退火后即制得本发明的合金磁性材料，其中，所述烧结温度控制在480℃，烧结时间设定为1h；所述退火是将合金粉加热至680℃，保温25min。
实施例2
一种合金磁性材料，包括以下原料：四氧化三铁65kg、氧化铁20kg、三氧化二铝8kg、氧化铜14kg、氧化锌14kg、二氧化硅6kg、氧化锶4kg、氧化镍30kg、氧化高钴15kg和硬脂酸镁1kg。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)先将原料通过球磨罐研磨至粒径≤2mm混匀后制得混合料；
(2)再将所述混合料置于感应炉中熔炼得合金锭，其中，感应炉的熔炼温度为1700℃，熔炼时间为4.5h；
(3)之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉，其中，球磨罐的罐内温度为108℃，球磨时间为42min，球磨粒径≤1mm；
(4)最后将所述合金粉经磁场成形、烧结以及退火后即制得本发明的合金磁性材料，其中，所述烧结温度控制在490℃，烧结时间设定为1.2h；所述退火是将合金粉加热至690℃，保温28min。
实施例3
一种合金磁性材料，包括以下原料：四氧化三铁70kg、氧化铁25kg、三氧化二铝10kg、氧化铜15kg、氧化锌15kg、二氧化硅7kg、氧化锶5kg、氧化镍35kg、氧化高钴20kg和硬脂酸镁2kg。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)先将原料通过球磨罐研磨至粒径≤2mm混匀后制得混合料；
(2)再将所述混合料置于感应炉中熔炼得合金锭，其中，感应炉的熔炼温度为1750℃，熔炼时间为5h；
(3)之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉，其中，球磨罐的罐内温度为110℃，球磨时间为45min，球磨粒径≤1mm；
(4)最后将所述合金粉经磁场成形、烧结以及退火后即制得本发明的合金磁性材料，其中，所述烧结温度控制在500℃，烧结时间设定为1.5h；所述退火是将合金粉加热至700℃，保温30min。
实施例4
一种合金磁性材料，包括以下原料：四氧化三铁75kg、氧化铁30kg、三氧化二铝12kg、氧化铜16kg、氧化锌16kg、二氧化硅8kg、氧化锶6kg、氧化镍40kg、氧化高钴25kg和硬脂酸镁3kg。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)先将原料通过球磨罐研磨至粒径≤2mm混匀后制得混合料；
(2)再将所述混合料置于感应炉中熔炼得合金锭，其中，感应炉的熔炼温度为1800℃，熔炼时间为5.5h；
(3)之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉，其中，球磨罐的罐内温度为112℃，球磨时间为48min，球磨粒径≤1mm；
(4)最后将所述合金粉经磁场成形、烧结以及退火后即制得本发明的合金磁性材料，其中，所述烧结温度控制在510℃，烧结时间设定为1.8h；所述退火是将合金粉加热至710℃，保温32min。
实施例5
一种合金磁性材料，包括以下原料：四氧化三铁80kg、氧化铁35kg、三氧化二铝15kg、氧化铜20kg、氧化锌20kg、二氧化硅10kg、氧化锶8kg、氧化镍45kg、氧化高钴30kg和硬脂酸镁5kg。
上述的一种合金磁性材料的制备工艺，按照以下步骤进行：
(1)先将原料通过球磨罐研磨至粒径≤2mm混匀后制得混合料；
(2)再将所述混合料置于感应炉中熔炼得合金锭，其中，感应炉的熔炼温度为1850℃，熔炼时间为6h；
(3)之后将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉，其中，球磨罐的罐内温度为115℃，球磨时间为50min，球磨粒径≤1mm；
(4)最后将所述合金粉经磁场成形、烧结以及退火后即制得本发明的合金磁性材料，其中，所述烧结温度控制在520℃，烧结时间设定为2h；所述退火是将合金粉加热至720℃，保温35min。
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 (8)

1.一种合金磁性材料，其特征在于，包括以下按重量份计的原料：四氧化三铁60-80份、氧化铁15-35份、三氧化二铝5-15份、氧化铜10-20份、氧化锌10-20份、二氧化硅4-10份、氧化锶2-8份、氧化镍25-45份、氧化高钴10-30份和硬脂酸镁1-5份。
2.根据权利要求1所述的一种合金磁性材料，其特征在于，包括以下按重量份计的原料：四氧化三铁65-75份、氧化铁20-30份、三氧化二铝8-12份、氧化铜14-16份、氧化锌14-16份、二氧化硅6-8份、氧化锶4-6份、氧化镍30-40份、氧化高钴15-25份和硬脂酸镁1-3份。
3.根据权利要求2所述的一种合金磁性材料，其特征在于，包括以下按重量份计的原料：四氧化三铁70份、氧化铁25份、三氧化二铝10份、氧化铜15份、氧化锌15份、二氧化硅7份、氧化锶5份、氧化镍35份、氧化高钴20份和硬脂酸镁2份。
4.一种如权利要求1-3任意一项所述的合金磁性材料的制备工艺，其特征在于，包括以下步骤：
(1)按所述重量份配比称取原料；
(2)将原料混合研磨，得混合料；
(3)将所述混合料置于感应炉中熔炼得合金锭；
(4)将合金锭置于球磨罐中，充入液氮进行研磨处理，得合金粉；
(5)最后将所述合金粉经磁场成形、烧结以及退火后即可。
5.根据权利要求4所述的一种合金磁性材料的制备工艺，其特征在于，在步骤(2)中，所述混合料是通过球磨罐研磨至粒径≤2mm混合制得的。
6.根据权利要求4所述的一种合金磁性材料的制备工艺，其特征在于，在步骤(3)中，所述感应炉的熔炼温度为1650℃～1850℃，熔炼时间为4～6h。
7.根据权利要求4所述的一种合金磁性材料的制备工艺，其特征在于，在步骤(4)中，所述合金锭的研磨处理，球磨罐的罐内温度为105-115℃，球磨时间为40-50min，球磨粒径≤1mm。
8.根据权利要求4所述的一种合金磁性材料的制备工艺，其特征在于，在步骤(5)中，所述烧结温度为480-520℃，烧结时间为1-2h；所述退火是将合金粉加热至680-720℃，保温25-35min。
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