CN110511016A - 一种锰锌铁氧体磁性材料的生产工艺 - Google Patents

一种锰锌铁氧体磁性材料的生产工艺 Download PDF

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CN110511016A
CN110511016A CN201910788531.4A CN201910788531A CN110511016A CN 110511016 A CN110511016 A CN 110511016A CN 201910788531 A CN201910788531 A CN 201910788531A CN 110511016 A CN110511016 A CN 110511016A
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严华军
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Abstract

本发明公开了一种锰锌铁氧体磁性材料的生产工艺，包括以下步骤：(1)按摩尔百分含量取如下组分的主料：Fe2O3、MnO2、Mn3O4，余量为ZnO，将主料加入容器中，再加入蒸馏水、Bi2O3、P2O5、TiO2，并充分混合搅拌均匀得到混合物；(2)将经步骤(1)烧结得到的物料加入容器中搅拌，充分混合，送入烧结炉内在氮气气氛保护下进行烧结；(3)将经步骤(2)烧结后的物料压制成块状，在氮气气氛保护下进行烧结；(4)按重量百分含量向经步骤(3)三次烧结后的物料中添加Co2O3、CuO和SiO2，并进行充分混合，在氮气气氛保护下进行烧结，得到锰锌铁氧体磁性材料，本发明优点是：提高了锰锌铁氧体磁性材料粒度分布的均匀程度，有效提升了锰锌铁氧体磁性材料的电阻率，并且降低了材料的损耗。

Description

一种锰锌铁氧体磁性材料的生产工艺
技术领域
本发明涉及铁氧体磁性材料生产工艺的技术领域，更具体地说是涉及锰锌铁氧体磁性材料生产工艺的技术领域。
背景技术
锰锌铁氧体磁性材料是一种复合氧化物烧结体非金属磁性材料，其作为一种非常重要的基础功能材料，锰锌铁氧体磁性材料具有高饱和磁感应强度、高起始磁导率、低损耗等特性，被广泛应用于生产功率变压器、脉冲宽带变压器、磁偏转装置、传感器、照明变压器和电子镇流器等电磁装置中，其应用范围涉及通讯、广播、电视、自动控制、航天航空、计算机、电子设备等领域，与人们的生产生活密不可分。目前，锰锌铁氧体磁性材料常见的生产方法主要分为干法工艺和湿法工艺，然而采用这些生产方法制得的锰锌铁氧体磁性材料其晶粒的均匀性不是十分一致，密度较小，容易出现气孔、粉体团聚等缺陷，从而对锰锌铁氧体磁性材料的起始磁导率和电阻率等性能造成了不小影响。
发明内容
本发明的目的就是为了解决上述之不足而提供一种可提高晶粒的均匀性和密度，降低气孔率等缺陷，提高锰锌铁氧体磁性材料起始磁导率和电阻率等性能的锰锌铁氧体磁性材料的生产工艺。
本发明为了解决上述技术问题而采用的技术解决方案如下：
一种锰锌铁氧体磁性材料的生产工艺，包括以下步骤：
(1)按摩尔百分含量取如下组分的主料：48～52mol％Fe2O3、9～16mol％MnO2、23～25mol％Mn3O4，余量为ZnO，将主料加入容器中，再按重量百分含量向容器中加入40~50wt%蒸馏水、330~400ppmBi2O3、340~450ppm P2O5、400~480ppm TiO2，并充分混合搅拌均匀得到混合物，将混合物添加入球磨机内进行初次研磨至粒径为80～86um，将初次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5~0.8%，将烧结炉内的初始温度控制为30~35℃，按3～3.5℃/min的升温速率将烧结炉内的温度升至950~1000℃，并保温2~2.1小时，接着，按4～4.5℃/min的降温速率将烧结炉内的温度降至870~900℃，并保温1.6~1.8小时，再按5.2～5.4℃/min的升温速率将烧结炉内的温度升至1200~1250℃，并保温1.2~1.5小时，最后按2.5～3.1℃/min的降温速率将烧结炉内的温度降至室温；
(2)将经步骤(1)烧结得到的物料加入容器中，按重量百分含量向容器中加入52~60wt%蒸馏水，并进行超声波搅拌25~32分钟，在搅拌的同时向容器中滴加质量浓度为56~72%的NaOH溶液，将容器中混合液的pH调至10.5~11.3，并将混合液的温度控制为54~62℃，接着，静置3.8~4.1小时后将混合液过滤得到沉淀物，按重量百分含量取260~320ppm CaCO3、280~330ppm Nb2O5和340~370ppm SnO2添加至沉淀物中，并进行充分混合，将混合后的物料添加至球磨机内进行二次研磨至粒径50～54um，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.6~0.9%，将烧结炉内的初始温度控制为30~35℃，按4.1～4.3℃/min的升温速率将烧结炉内的温度升至1020~1045℃，并保温3.8~4.2小时，接着，按3.5～3.9℃/min的升温速率将烧结炉内的温度升至1100~1150℃，并保温2.4~2.7小时，再按3.6～3.8℃/min的降温速率将烧结炉内的温度降至980~990℃，并保温2.3~2.5小时，最后按4.2～4.5℃/min的降温速率将烧结炉内的温度降至室温；
(3)将经步骤(2)烧结后的物料压制成块状，将块状物料置于高压釜中，向高压釜内通入氮气，并将高压釜内的压强控制为8.6~9.3Mpa，通过钨丝将块状物料通电点燃，经自蔓延反应生成毛坯块，使用球磨机对毛坯块进行三次研磨至粒径为14～18um，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.4~0.7%，将烧结炉内的初始温度控制为30~35℃，按2.8～3.1℃/min的升温速率将烧结炉内的温度升至940~950℃，并保温2.9~3.4小时，接着，按3.2～3.5℃/min的升温速率将烧结炉内的温度升至1030~1070℃，并保温3.3~3.6小时，再按2.9～3.2℃/min的降温速率将烧结炉内的温度降至910~930℃，并保温3.7~4小时，最后按2.8～3℃/min的降温速率将烧结炉内的温度降至室温；
(4) 按重量百分含量向经步骤(3)三次烧结后的物料中添加340~380ppm Co2O3、410~470ppm CuO和380~420ppm SiO2，并进行充分混合，将混合后的物料添加至球磨机内进行四次研磨至粒径为0.8～1.3um，按重量百分含量向经四次研磨后的物料中加入1.5~1.8wt%聚乙烯醇，采用手工造粒，过80～100目筛，经烘干后得到颗粒料，将颗粒料通过模具压制成坯体，将坯体送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为1.3~1.5%，将烧结炉内的初始温度控制为30~35℃，按4.6～4.8℃/min的升温速率将烧结炉内的温度升至1200~1280℃，并保温3.1~3.5小时，接着，按3.6～3.9℃/min的降温速率将烧结炉内的温度降至1000~1100℃，并保温2.5~2.8小时，再按2.7～3℃/min的升温速率将烧结炉内的温度升至1130~1200℃，并保温2.5~2.7小时，最后按4.2～4.5℃/min的降温速率将烧结炉内的温度降至室温，得到锰锌铁氧体磁性材料。
优选地，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.8%，将烧结炉内的初始温度控制为32℃，按4.2℃/min的升温速率将烧结炉内的温度升至1030℃，并保温4小时，接着，按3.7℃/min的升温速率将烧结炉内的温度升至1130℃，并保温2.5小时，再按3.7℃/min的降温速率将烧结炉内的温度降至985℃，并保温2.4小时，最后按4.3℃/min的降温速率将烧结炉内的温度降至室温。
优选地，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5%，将烧结炉内的初始温度控制为32℃，按3℃/min的升温速率将烧结炉内的温度升至945℃，并保温3.1小时，接着，按3.3℃/min的升温速率将烧结炉内的温度升至1040℃，并保温3.4小时，再按3℃/min的降温速率将烧结炉内的温度降至920℃，并保温3.9小时，最后按2.9℃/min的降温速率将烧结炉内的温度降至室温。
本发明采用上述技术解决方案所能达到的有益效果是：
1、本生产工艺分别通过四次研磨和烧结，并通过NaOH溶液使锰、锌、铁金属离子沉淀，同时通过钨丝将块状物料通电点燃进行自蔓延反应，从而获得高密度细晶粒的多晶结构，制得的锰锌铁氧体磁性材料具有粒度分布均匀、纯度高、活性大、分散性好、成分无偏析等优点。
2、在四次烧结过程中，分别采用了不同的烧结温度曲线，该烧结温度曲线是根据不同时期物料的特性进行精心设计得到，不仅提高了烧结密度，细化了晶粒，而且降低了研磨粉体的团聚程度，大幅提高了锰锌铁氧体磁性材料粒度分布的均匀程度，有效提升了锰锌铁氧体磁性材料的电阻率，并且降低了材料的损耗。
3、通过在步骤（1）中加入Bi2O3、P2O5和TiO2，从而降低了锰锌铁氧体磁性材料的气孔率，增大了密度，使锰锌铁氧体磁性材料的起始磁导率、品质因子、电阻率和居里温度值得到一定程度的提高。通过在步骤（2）中加入CaCO3、Nb2O5和SnO2，从而提高了锰锌铁氧体磁性材料晶粒的均匀性，降低了气孔率和涡流损耗，提高了起始磁导率和电阻率。通过在步骤（4）中加入Co2O3、CuO和SiO2，从而促进了晶粒的均匀长大，增大了晶格常数。
具体实施方式
实施例1：一种锰锌铁氧体磁性材料的生产工艺，包括以下步骤：
(1)按摩尔百分含量取如下组分的主料：48mol％Fe2O3、9mol％MnO2、23mol％Mn3O4，余量为ZnO，将主料加入容器中，再按重量百分含量向容器中加入40wt%蒸馏水、330ppmBi2O3、340ppm P2O5、400ppm TiO2，并充分混合搅拌均匀得到混合物，将混合物添加入球磨机内进行初次研磨至粒径为80um，将初次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5%，将烧结炉内的初始温度控制为30℃，按3℃/min的升温速率将烧结炉内的温度升至950℃，并保温2小时，接着，按4℃/min的降温速率将烧结炉内的温度降至870℃，并保温1.6小时，再按5.2℃/min的升温速率将烧结炉内的温度升至1200℃，并保温1.2小时，最后按2.5℃/min的降温速率将烧结炉内的温度降至室温；
(2)将经步骤(1)烧结得到的物料加入容器中，按重量百分含量向容器中加入52wt%蒸馏水，并进行超声波搅拌25分钟，在搅拌的同时向容器中滴加质量浓度为56%的NaOH溶液，将容器中混合液的pH调至10.5，并将混合液的温度控制为54℃，接着，静置3.8小时后将混合液过滤得到沉淀物，按重量百分含量取260ppm CaCO3、280ppm Nb2O5和340ppm SnO2添加至沉淀物中，并进行充分混合，将混合后的物料添加至球磨机内进行二次研磨至粒径50um，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.6%，将烧结炉内的初始温度控制为30℃，按4.1℃/min的升温速率将烧结炉内的温度升至1020℃，并保温3.8小时，接着，按3.5℃/min的升温速率将烧结炉内的温度升至1100℃，并保温2.4小时，再按3.6℃/min的降温速率将烧结炉内的温度降至980℃，并保温2.3小时，最后按4.2℃/min的降温速率将烧结炉内的温度降至室温；
(3)将经步骤(2)烧结后的物料压制成块状，将块状物料置于高压釜中，向高压釜内通入氮气，并将高压釜内的压强控制为8.6Mpa，通过钨丝将块状物料通电点燃，经自蔓延反应生成毛坯块，使用球磨机对毛坯块进行三次研磨至粒径为14um，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.4%，将烧结炉内的初始温度控制为30℃，按2.8℃/min的升温速率将烧结炉内的温度升至940℃，并保温2.9小时，接着，按3.2℃/min的升温速率将烧结炉内的温度升至1030℃，并保温3.3小时，再按2.9℃/min的降温速率将烧结炉内的温度降至910℃，并保温3.7小时，最后按2.8℃/min的降温速率将烧结炉内的温度降至室温；
(4) 按重量百分含量向经步骤(3)三次烧结后的物料中添加340ppm Co2O3、410ppmCuO和380ppm SiO2，并进行充分混合，将混合后的物料添加至球磨机内进行四次研磨至粒径为0.8um，按重量百分含量向经四次研磨后的物料中加入1.5wt%聚乙烯醇，采用手工造粒，过80目筛，经烘干后得到颗粒料，将颗粒料通过模具压制成坯体，将坯体送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为1.3%，将烧结炉内的初始温度控制为30℃，按4.6℃/min的升温速率将烧结炉内的温度升至1200℃，并保温3.1小时，接着，按3.6℃/min的降温速率将烧结炉内的温度降至1000℃，并保温2.5小时，再按2.7℃/min的升温速率将烧结炉内的温度升至1130℃，并保温2.5小时，最后按4.2℃/min的降温速率将烧结炉内的温度降至室温，得到锰锌铁氧体磁性材料。
实施例2：一种锰锌铁氧体磁性材料的生产工艺，包括以下步骤：
(1)按摩尔百分含量取如下组分的主料：50mol％Fe2O3、12mol％MnO2、24mol％Mn3O4，余量为ZnO，将主料加入容器中，再按重量百分含量向容器中加入45wt%蒸馏水、360ppmBi2O3、400ppm P2O5、440ppm TiO2，并充分混合搅拌均匀得到混合物，将混合物添加入球磨机内进行初次研磨至粒径为83um，将初次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.6%，将烧结炉内的初始温度控制为32℃，按3.2℃/min的升温速率将烧结炉内的温度升至980℃，并保温2小时，接着，按4.2℃/min的降温速率将烧结炉内的温度降至880℃，并保温1.7小时，再按5.3℃/min的升温速率将烧结炉内的温度升至1230℃，并保温1.3小时，最后按2.7℃/min的降温速率将烧结炉内的温度降至室温；
(2)将经步骤(1)烧结得到的物料加入容器中，按重量百分含量向容器中加入56wt%蒸馏水，并进行超声波搅拌28分钟，在搅拌的同时向容器中滴加质量浓度为60%的NaOH溶液，将容器中混合液的pH调至10.9，并将混合液的温度控制为58℃，接着，静置4小时后将混合液过滤得到沉淀物，按重量百分含量取290ppm CaCO3、300ppm Nb2O5和350ppm SnO2添加至沉淀物中，并进行充分混合，将混合后的物料添加至球磨机内进行二次研磨至粒径52um，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.8%，将烧结炉内的初始温度控制为32℃，按4.2℃/min的升温速率将烧结炉内的温度升至1030℃，并保温4小时，接着，按3.7℃/min的升温速率将烧结炉内的温度升至1130℃，并保温2.5小时，再按3.7℃/min的降温速率将烧结炉内的温度降至985℃，并保温2.4小时，最后按4.3℃/min的降温速率将烧结炉内的温度降至室温；
(3)将经步骤(2)烧结后的物料压制成块状，将块状物料置于高压釜中，向高压釜内通入氮气，并将高压釜内的压强控制为9Mpa，通过钨丝将块状物料通电点燃，经自蔓延反应生成毛坯块，使用球磨机对毛坯块进行三次研磨至粒径为16um，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5%，将烧结炉内的初始温度控制为32℃，按3℃/min的升温速率将烧结炉内的温度升至945℃，并保温3.1小时，接着，按3.3℃/min的升温速率将烧结炉内的温度升至1040℃，并保温3.4小时，再按3℃/min的降温速率将烧结炉内的温度降至920℃，并保温3.9小时，最后按2.9℃/min的降温速率将烧结炉内的温度降至室温；
(4) 按重量百分含量向经步骤(3)三次烧结后的物料中添加360ppm Co2O3、440ppmCuO和400ppm SiO2，并进行充分混合，将混合后的物料添加至球磨机内进行四次研磨至粒径为1um，按重量百分含量向经四次研磨后的物料中加入1.6wt%聚乙烯醇，采用手工造粒，过90目筛，经烘干后得到颗粒料，将颗粒料通过模具压制成坯体，将坯体送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为1.4%，将烧结炉内的初始温度控制为32℃，按4.7℃/min的升温速率将烧结炉内的温度升至1240℃，并保温3.3小时，接着，按3.7℃/min的降温速率将烧结炉内的温度降至1050℃，并保温2.7小时，再按2.8℃/min的升温速率将烧结炉内的温度升至1160℃，并保温2.6小时，最后按4.4℃/min的降温速率将烧结炉内的温度降至室温，得到锰锌铁氧体磁性材料。
实施例3：一种锰锌铁氧体磁性材料的生产工艺，包括以下步骤：
(1)按摩尔百分含量取如下组分的主料： 52mol％Fe2O3、16mol％MnO2、25mol％Mn3O4，余量为ZnO，将主料加入容器中，再按重量百分含量向容器中加入50wt%蒸馏水、400ppmBi2O3、450ppm P2O5、480ppm TiO2，并充分混合搅拌均匀得到混合物，将混合物添加入球磨机内进行初次研磨至粒径为86um，将初次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.8%，将烧结炉内的初始温度控制为35℃，按3.5℃/min的升温速率将烧结炉内的温度升至1000℃，并保温2.1小时，接着，按4.5℃/min的降温速率将烧结炉内的温度降至900℃，并保温1.8小时，再按5.4℃/min的升温速率将烧结炉内的温度升至1250℃，并保温1.5小时，最后按3.1℃/min的降温速率将烧结炉内的温度降至室温；
(2)将经步骤(1)烧结得到的物料加入容器中，按重量百分含量向容器中加入60wt%蒸馏水，并进行超声波搅拌32分钟，在搅拌的同时向容器中滴加质量浓度为72%的NaOH溶液，将容器中混合液的pH调至11.3，并将混合液的温度控制为62℃，接着，静置4.1小时后将混合液过滤得到沉淀物，按重量百分含量取320ppm CaCO3、330ppm Nb2O5和370ppm SnO2添加至沉淀物中，并进行充分混合，将混合后的物料添加至球磨机内进行二次研磨至粒径54um，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.9%，将烧结炉内的初始温度控制为35℃，按4.3℃/min的升温速率将烧结炉内的温度升至1045℃，并保温4.2小时，接着，按3.9℃/min的升温速率将烧结炉内的温度升至1150℃，并保温2.7小时，再按3.8℃/min的降温速率将烧结炉内的温度降至990℃，并保温2.5小时，最后按4.5℃/min的降温速率将烧结炉内的温度降至室温；
(3)将经步骤(2)烧结后的物料压制成块状，将块状物料置于高压釜中，向高压釜内通入氮气，并将高压釜内的压强控制为9.3Mpa，通过钨丝将块状物料通电点燃，经自蔓延反应生成毛坯块，使用球磨机对毛坯块进行三次研磨至粒径为18um，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.7%，将烧结炉内的初始温度控制为35℃，按3.1℃/min的升温速率将烧结炉内的温度升至950℃，并保温3.4小时，接着，按3.5℃/min的升温速率将烧结炉内的温度升至1070℃，并保温3.6小时，再按3.2℃/min的降温速率将烧结炉内的温度降至930℃，并保温4小时，最后按3℃/min的降温速率将烧结炉内的温度降至室温；
(4) 按重量百分含量向经步骤(3)三次烧结后的物料中添加380ppm Co2O3、470ppmCuO和420ppm SiO2，并进行充分混合，将混合后的物料添加至球磨机内进行四次研磨至粒径为1.3um，按重量百分含量向经四次研磨后的物料中加入1.8wt%聚乙烯醇，采用手工造粒，过100目筛，经烘干后得到颗粒料，将颗粒料通过模具压制成坯体，将坯体送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为1.5%，将烧结炉内的初始温度控制为35℃，按4.8℃/min的升温速率将烧结炉内的温度升至1280℃，并保温3.5小时，接着，按3.9℃/min的降温速率将烧结炉内的温度降至1100℃，并保温2.8小时，再按3℃/min的升温速率将烧结炉内的温度升至1200℃，并保温2.7小时，最后按4.5℃/min的降温速率将烧结炉内的温度降至室温，得到锰锌铁氧体磁性材料。

Claims (3)

1.一种锰锌铁氧体磁性材料的生产工艺，其特征在于包括以下步骤：
(1)按摩尔百分含量取如下组分的主料：48～52mol％Fe2O3、9～16mol％MnO2、23～25mol％Mn3O4，余量为ZnO，将主料加入容器中，再按重量百分含量向容器中加入40~50wt%蒸馏水、330~400ppmBi2O3、340~450ppm P2O5、400~480ppm TiO2，并充分混合搅拌均匀得到混合物，将混合物添加入球磨机内进行初次研磨至粒径为80～86um，将初次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5~0.8%，将烧结炉内的初始温度控制为30~35℃，按3～3.5℃/min的升温速率将烧结炉内的温度升至950~1000℃，并保温2~2.1小时，接着，按4～4.5℃/min的降温速率将烧结炉内的温度降至870~900℃，并保温1.6~1.8小时，再按5.2～5.4℃/min的升温速率将烧结炉内的温度升至1200~1250℃，并保温1.2~1.5小时，最后按2.5～3.1℃/min的降温速率将烧结炉内的温度降至室温；
(2)将经步骤(1)烧结得到的物料加入容器中，按重量百分含量向容器中加入52~60wt%蒸馏水，并进行超声波搅拌25~32分钟，在搅拌的同时向容器中滴加质量浓度为56~72%的NaOH溶液，将容器中混合液的pH调至10.5~11.3，并将混合液的温度控制为54~62℃，接着，静置3.8~4.1小时后将混合液过滤得到沉淀物，按重量百分含量取260~320ppm CaCO3、280~330ppm Nb2O5和340~370ppm SnO2添加至沉淀物中，并进行充分混合，将混合后的物料添加至球磨机内进行二次研磨至粒径50～54um，将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.6~0.9%，将烧结炉内的初始温度控制为30~35℃，按4.1～4.3℃/min的升温速率将烧结炉内的温度升至1020~1045℃，并保温3.8~4.2小时，接着，按3.5～3.9℃/min的升温速率将烧结炉内的温度升至1100~1150℃，并保温2.4~2.7小时，再按3.6～3.8℃/min的降温速率将烧结炉内的温度降至980~990℃，并保温2.3~2.5小时，最后按4.2～4.5℃/min的降温速率将烧结炉内的温度降至室温；
(3)将经步骤(2)烧结后的物料压制成块状，将块状物料置于高压釜中，向高压釜内通入氮气，并将高压釜内的压强控制为8.6~9.3Mpa，通过钨丝将块状物料通电点燃，经自蔓延反应生成毛坯块，使用球磨机对毛坯块进行三次研磨至粒径为14～18um，将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.4~0.7%，将烧结炉内的初始温度控制为30~35℃，按2.8～3.1℃/min的升温速率将烧结炉内的温度升至940~950℃，并保温2.9~3.4小时，接着，按3.2～3.5℃/min的升温速率将烧结炉内的温度升至1030~1070℃，并保温3.3~3.6小时，再按2.9～3.2℃/min的降温速率将烧结炉内的温度降至910~930℃，并保温3.7~4小时，最后按2.8～3℃/min的降温速率将烧结炉内的温度降至室温；
(4) 按重量百分含量向经步骤(3)三次烧结后的物料中添加340~380ppm Co2O3、410~470ppm CuO和380~420ppm SiO2，并进行充分混合，将混合后的物料添加至球磨机内进行四次研磨至粒径为0.8～1.3um，按重量百分含量向经四次研磨后的物料中加入1.5~1.8wt%聚乙烯醇，采用手工造粒，过80～100目筛，经烘干后得到颗粒料，将颗粒料通过模具压制成坯体，将坯体送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为1.3~1.5%，将烧结炉内的初始温度控制为30~35℃，按4.6～4.8℃/min的升温速率将烧结炉内的温度升至1200~1280℃，并保温3.1~3.5小时，接着，按3.6～3.9℃/min的降温速率将烧结炉内的温度降至1000~1100℃，并保温2.5~2.8小时，再按2.7～3℃/min的升温速率将烧结炉内的温度升至1130~1200℃，并保温2.5~2.7小时，最后按4.2～4.5℃/min的降温速率将烧结炉内的温度降至室温，得到锰锌铁氧体磁性材料。
2.根据权利要求1所述的一种锰锌铁氧体磁性材料的生产工艺，其特征在于：将二次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.8%，将烧结炉内的初始温度控制为32℃，按4.2℃/min的升温速率将烧结炉内的温度升至1030℃，并保温4小时，接着，按3.7℃/min的升温速率将烧结炉内的温度升至1130℃，并保温2.5小时，再按3.7℃/min的降温速率将烧结炉内的温度降至985℃，并保温2.4小时，最后按4.3℃/min的降温速率将烧结炉内的温度降至室温。
3.根据权利要求1或2所述的一种锰锌铁氧体磁性材料的生产工艺，其特征在于：将三次研磨后的物料送入烧结炉内在氮气气氛保护下进行烧结，将烧结炉内的氧气体积浓度控制为0.5%，将烧结炉内的初始温度控制为32℃，按3℃/min的升温速率将烧结炉内的温度升至945℃，并保温3.1小时，接着，按3.3℃/min的升温速率将烧结炉内的温度升至1040℃，并保温3.4小时，再按3℃/min的降温速率将烧结炉内的温度降至920℃，并保温3.9小时，最后按2.9℃/min的降温速率将烧结炉内的温度降至室温。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113072370A (zh) * 2021-03-25 2021-07-06 南通众兴磁业有限公司 一种锰锌铁氧体磁芯及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1848316A (zh) * 2006-04-12 2006-10-18 北京科技大学 一种内部供氧自蔓延高温合成锰锌铁氧体的方法
CN103570356A (zh) * 2012-08-08 2014-02-12 钟祥市金时利磁业有限公司 微波电热组合式烧结锰锌铁氧体磁性材料的方法
US20170278607A1 (en) * 2014-08-29 2017-09-28 Hitachi Metals, Ltd. MnZn-Based Ferrite and Method for Manufacturing the Same
CN107324794A (zh) * 2017-07-13 2017-11-07 横店集团东磁股份有限公司 一种宽频、高阻抗、高居里温度的锰锌铁氧体材料及其制备方法
CN107555984A (zh) * 2017-10-10 2018-01-09 浙江大学 一种高频宽温低损耗MnZn铁氧体的烧结过程气氛控制方法
CN108275992A (zh) * 2018-01-18 2018-07-13 常熟市三佳磁业有限公司 宽温低功耗高磁导率锰锌铁氧体材料及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1848316A (zh) * 2006-04-12 2006-10-18 北京科技大学 一种内部供氧自蔓延高温合成锰锌铁氧体的方法
CN103570356A (zh) * 2012-08-08 2014-02-12 钟祥市金时利磁业有限公司 微波电热组合式烧结锰锌铁氧体磁性材料的方法
US20170278607A1 (en) * 2014-08-29 2017-09-28 Hitachi Metals, Ltd. MnZn-Based Ferrite and Method for Manufacturing the Same
CN107324794A (zh) * 2017-07-13 2017-11-07 横店集团东磁股份有限公司 一种宽频、高阻抗、高居里温度的锰锌铁氧体材料及其制备方法
CN107555984A (zh) * 2017-10-10 2018-01-09 浙江大学 一种高频宽温低损耗MnZn铁氧体的烧结过程气氛控制方法
CN108275992A (zh) * 2018-01-18 2018-07-13 常熟市三佳磁业有限公司 宽温低功耗高磁导率锰锌铁氧体材料及其制备方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
N SIREGAR 等: "Effect of Synthesis Temperature and NaOH Concentration on Microstructural and Magnetic Properties of Mn0.5Zn0.5Fe2O4 Nanoparticles", 《IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING》 *
林辉龙 等: "锰锌铁氧体粉体制备技术与添加剂的研究进展", 《辽宁科技大学学报》 *
许定胜 等: "四氧化三锰对锰锌铁氧体生产过程的影响", 《中国锰业》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113072370A (zh) * 2021-03-25 2021-07-06 南通众兴磁业有限公司 一种锰锌铁氧体磁芯及其制备方法

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