CN113024239A - 一种宽温超低损耗锰锌铁氧体材料及其制备方法 - Google Patents

一种宽温超低损耗锰锌铁氧体材料及其制备方法 Download PDF

Info

Publication number
CN113024239A
CN113024239A CN202110454202.3A CN202110454202A CN113024239A CN 113024239 A CN113024239 A CN 113024239A CN 202110454202 A CN202110454202 A CN 202110454202A CN 113024239 A CN113024239 A CN 113024239A
Authority
CN
China
Prior art keywords
temperature
ferrite material
sintering
wide
main component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110454202.3A
Other languages
English (en)
Inventor
欧阳昌伟
王翔
杨军
梁烛
沈志平
代礼彬
贺贤举
聂矗
夏锐
倪凯凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Zhengye Longteng New Material Development Co ltd
Original Assignee
Guizhou Zhengye Longteng New Material Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Zhengye Longteng New Material Development Co ltd filed Critical Guizhou Zhengye Longteng New Material Development Co ltd
Priority to CN202110454202.3A priority Critical patent/CN113024239A/zh
Publication of CN113024239A publication Critical patent/CN113024239A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2658Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208Calcium oxide or oxide-forming salts thereof, e.g. lime
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3293Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO]
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562Heating rate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6565Cooling rate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567Treatment time
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/77Density

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

本发明公开了一种宽温超低损耗锰锌铁氧体材料及其制备方法,所述材料的原料包括主成分和辅助成分;所述主成分含量以氧化物百分比计为:Fe2O3为50~52mol%、ZnO为10~12mol%、其余为MnO,主成分配方的总量为100%;按占主成分总重量计,辅助成分为:CaO 200~600ppm、ZrO2 200~400ppm、Co2O33000~10000ppm、SiO220~100ppm、Nb2O5200~400ppm、SnO2400ppm~800ppm或TiO2300~600ppm中的任意五种或以上组合;解决了现有技术的锰锌软磁铁氧体材料高低温损耗都高于310kW/m3等问题。

Description

一种宽温超低损耗锰锌铁氧体材料及其制备方法
技术领域
本发明属于软磁铁氧体材料制备技术领域,尤其涉及一种宽温超低损耗锰锌铁氧体材料及其制备方法。
背景技术
软磁铁氧体材料是电子元器件中的主要材料之一,是各种电子产品的主要配件,无论是消费家电产品,还是计算机、通讯设备、汽车等工业类产品。还广泛应用于5G通讯、人工智能、新能源汽车、物联网、绿色能源等新兴产业。
宽温低损耗锰锌软磁铁氧体材料主要用作电子设备中的开关电源,电子设备向小型化、轻量化发展也促使能量供应的开关电源向小型化、轻量化发展。要实现开关电源的小型化,轻量化、高效节能和可靠性。提高锰锌软磁铁氧体材料磁导率及降低宽温损耗是有效的方法。现有技术中发明专利公开号CN102097195A、CN102693803A、CN107200570A、CN111039667A等在宽温的范围内都实现了低功率损耗,但其高低温损耗都高于310kW/m3
发明内容
本发明要解决的技术问题:提供一种宽温超低损耗锰锌铁氧体材料及其制备方法,以解决现有技术的锰锌软磁铁氧体材料在宽温的范围内都实现了低功率损耗,但其高低温损耗都高于310kW/m3等问题。
本发明技术方案:
一种宽温超低损耗锰锌铁氧体材料,所述材料的原料包括主成分和辅助成分;所述主成分含量以氧化物百分比计为:Fe2O3为50~52mol%、ZnO为10~12mol%、其余为MnO,主成分配方的总量为100%;按占主成分总重量计,辅助成分为:CaO 200~600ppm、ZrO2200~400ppm、Co2O33000~10000ppm、SiO220~100ppm、Nb2O5 200~400ppm、SnO2 400ppm~800ppm或TiO2300~600ppm中的任意五种或以上组合。
所述的一种宽温超低损耗锰锌铁氧体材料的制备方法,它包括:
步骤1、配料振磨混合:按照原料主成分配比称重,将各原料投入振磨机振磨混合,混料时间为0.5~1小时;
步骤2、预烧:对振磨处理后的粉料在空气窑中进行预烧;
步骤3、砂磨:预烧后的粉料,加入按比例称取的辅助成分用循环式砂磨机砂磨3~5小时,使粒径D50为1.0~1.5μm之间;
步骤4、喷雾造粒:用喷雾造粒机造粒;
步骤5、成型:采用全自动干压机进行成型,成型坯件尺寸为H25×15×7.5mm,成型压力为15~20Mpa;
步骤6、烧结:在氮气窑炉或钟罩炉中烧成,烧结最高温度1280~1340℃,烧结最高温度保温时间3~7小时,保温时氧气含量在2.8%~3.5%,然后在氮气保护气氛中冷却到室温,得到所要的软磁铁氧体材料。
步骤2所述预烧时,最高温度为850~900℃;最高温度保温时间为2~5小
时;预烧工艺见表1:
表1
Figure BDA0003039915400000021
造粒时,入口温度控制在280~320℃之间,出口温度为90~120℃。
本发明的有益效果:
本发明锰锌软磁铁氧体材料的制备,配方是基础、烧结是关键;低损耗铁氧体烧结的关键是晶粒化和致密化过程,本发明给出了烧结具体的关键技术及控制工艺,在900~1150℃列出了一个低氧气氛升温工艺,这样可以有效的使铁氧体致密化,1305℃或是1290℃保温阶段在一个平衡气氛中保温6到7小时,使晶粒长大形成磁芯损耗最小的晶粒尺寸。
配方和密度决定着材料的饱和磁通密度Bs(功率铁氧体磁芯通常工作于有直流偏置场的状态下,高Bs是为了保证磁芯具有高直流叠加特性的需要);而掺入有效的添加物及匹配适当的烧结工艺,对软磁铁氧体材料性能具有决定的意义。本发明在主配方、添加物和预烧工艺进行改进,特别在烧结工艺进行了深入的改进,通过对烧结温度及氧含量的精确控制;制备得到高低温损耗都小于310kW/m3的锰锌软磁铁氧体材料;解决了现有技术的锰锌软磁铁氧体材料在宽温的范围内都实现了低功率损耗,但其高低温损耗都高于310kW/m3等问题。
具体实施方式
一种宽温超低损耗锰锌铁氧体材料及其制备方法。由主成分和辅助成分组成,其中,主成分及含量以氧化物百分比计算为:Fe2O3为50~52mol%、ZnO为10~12mol%、其余为MnO,所述主成分配方的总量为100%;按占主成分总重量计的辅助成分为:CaO 200~600ppm、ZrO2 200~400ppm、Co2O33000~10000ppm、SiO220~100ppm、Nb2O5 200~400ppm、SnO2 400ppm~800ppm、TiO2300~600ppm中的任意五种或以上组合。
本发明中Fe2O3的含量最为关键,对于低损耗锰锌铁氧体来言,要Bs和Tc尽量高,损耗尽量低,提高Bs需要过铁配方,即摩尔比例要大于50%,但Fe2O3过多,则导致Fe2+离子增多,Fe2+与Fe3+之间的电子传递增多,材料损耗会加大,本发明在满足高Bs过铁配方的同时,严格避免引入过多的Fe2+,这是实现超低损耗的条件之一。
本发明通过掺入一定量的CaO与SiO2的复配添加剂,使之在晶界富聚,细化晶粒,增大材料的晶界电阻率,降低材料功耗;通过加入ZrO2、SnO2、TiO2或Nb2O5等添加剂来达到均匀化晶粒和提高密度的目的,抑制Fe2+的产生,进而降低损耗;加入Co2O3添加剂时,可使提高材料的温度稳定性和使用频率,降低损耗。
所述软磁铁氧体材料的具体制备过程为:
所述软磁铁氧体材料的具体制备过程为:
(1)配料振磨混合:按照所述原料主成分配比称重,将各原料投入振磨机振磨混合,混料时间为0.5~1小时;
(2)预烧:对振磨处理后的粉料在空气窑中进行预烧,最高温度为850~900℃,最高温度保温时间为2~5小时,具体预烧工艺见表1;
表1
Figure BDA0003039915400000031
Figure BDA0003039915400000041
(3)砂磨:预烧后的粉料,加入按比例称取的辅助成分用循环式砂磨机砂磨3~5小时,使粒径D50为1.0~1.5μm之间;
(4)喷雾造粒:用喷雾造粒机造粒,造粒时,入口温度控制在280~320℃之间,出口温度为90~120℃;
(5)成型:采用全自动干压机进行成型,成型坯件尺寸为H25×15×7.5mm,成型压力为15~20MPa。
(6)烧结:在氮气窑炉或钟罩炉中烧成,烧结最高温度1280~1340℃,烧结最高温度保温时间3~7小时,保温时氧气含量在2.8%~3.5%,然后在氮气保护气氛中冷却到室温,得到所要的软磁铁氧体材料;
本发明的软磁铁氧体特性如下表2:
Figure BDA0003039915400000042
实施例1
一种宽温超低损耗锰锌铁氧体材料及其制备方法。由主成分和辅助成分组成,其中,主成分及含量以氧化物百分比计算为:Fe2O3为50.55mol%、ZnO为11.05mol%、其余为MnO,所述主成分配方的总量为100%;按占主成分总重量计的辅助成分为:CaO 450ppm、ZrO2 250ppm、Co2O34000ppm、SiO230ppm、Nb2O5 300ppm、SnO2 550ppm。
所述软磁铁氧体材料的具体制备过程为:
所述软磁铁氧体材料的具体制备过程为:
(3)配料振磨混合:按照所述原料主成分配比称重,将各原料投入振磨机振磨混合,混料时间为0.8小时;
(4)预烧:对振磨处理后的粉料在空气窑中进行预烧,最高温度为870℃,最高温度保温时间为3小时,具体预烧工艺见表3;
表3
Figure BDA0003039915400000051
(3)砂磨:预烧后的粉料,加入按比例称取的辅助成分用循环式砂磨机砂磨3.5小时,使粒径D50为1.1μm之间;
(4)喷雾造粒:用喷雾造粒机造粒,造粒时,入口温度控制在300℃之间,出口温度为105℃;
(5)成型:采用全自动干压机进行成型,成型坯件尺寸为H25×15×7.5mm,成型压力为18MPa。
(7)烧结:在氮气窑炉或钟罩炉中烧成,烧结最高温度1305℃,烧结最高温度保温时间5.5小时,保温时氧气含量在3.2%,然后在氮气保护气氛中冷却到室温,得到所要的软磁铁氧体材料;具体烧结工艺见下表4
表4
Figure BDA0003039915400000052
Figure BDA0003039915400000061
Figure BDA0003039915400000071
本发明的实施例1软磁铁氧体特性如下表5:
表5
Figure BDA0003039915400000072
实施例2
一种宽温超低损耗锰锌铁氧体材料及其制备方法。由主成分和辅助成分组成,其中,主成分及含量以氧化物百分比计算为:Fe2O3为50.95mol%、ZnO为10.85mol%、其余为MnO,所述主成分配方的总量为100%;按占主成分总重量计的辅助成分为:CaO 400ppm、ZrO2 200ppm、Co2O33800ppm、SiO240ppm、Nb2O5 250ppm、SnO2250ppm、TiO2300ppm。
所述软磁铁氧体材料的具体制备过程为:
所述软磁铁氧体材料的具体制备过程为:
(5)配料振磨混合:按照所述原料主成分配比称重,将各原料投入振磨机振磨混合,混料时间为0.6小时;
(6)预烧:对振磨处理后的粉料在空气窑中进行预烧,最高温度为900℃,最高温度保温时间为2小时,具体预烧工艺见表6;
表6
Figure BDA0003039915400000081
(3)砂磨:预烧后的粉料,加入按比例称取的辅助成分用循环式砂磨机砂磨3小时,使粒径D50为1.25μm之间;
(4)喷雾造粒:用喷雾造粒机造粒,造粒时,入口温度控制在310℃之间,出口温度为100℃;
(5)成型:采用全自动干压机进行成型,成型坯件尺寸为H25×15×7.5mm,成型压力为17MPa。
(8)烧结:在氮气窑炉或钟罩炉中烧成,烧结最高温度1290℃,烧结最高温度保温时间6.5小时,保温时氧气含量在3.05%,然后在氮气保护气氛中冷却到室温,得到所要的软磁铁氧体材料;具体烧结工艺见下表7
表7
Figure BDA0003039915400000082
Figure BDA0003039915400000091
Figure BDA0003039915400000101
本发明的实施例2软磁铁氧体特性如下:
Figure BDA0003039915400000102

Claims (4)

1.一种宽温超低损耗锰锌铁氧体材料,其特征在于:所述材料的原料包括主成分和辅助成分;所述主成分含量以氧化物百分比计为:Fe2O3为50~52mol%、ZnO为10~12mol%、其余为MnO,主成分配方的总量为100%;按占主成分总重量计,辅助成分为:CaO 200~600ppm、ZrO2 200~400ppm、Co2O3 3000~10000ppm、SiO2 20~100ppm、Nb2O5 200~400ppm、SnO2400ppm~800ppm或TiO2 300~600ppm中的任意五种或以上组合。
2.如权利要求1所述的一种宽温超低损耗锰锌铁氧体材料的制备方法,它包括:
步骤1、配料振磨混合:按照原料主成分配比称重,将各原料投入振磨机振磨混合,混料时间为0.5~1小时;
步骤2、预烧:对振磨处理后的粉料在空气窑中进行预烧;
步骤3、砂磨:预烧后的粉料,加入按比例称取的辅助成分用循环式砂磨机砂磨3~5小时,使粒径D50为1.0~1.5μm之间;
步骤4、喷雾造粒:用喷雾造粒机造粒;
步骤5、成型:采用全自动干压机进行成型,成型坯件尺寸为H25×15×7.5mm,成型压力为15~20Mpa;
步骤6、烧结:在氮气窑炉或钟罩炉中烧成,烧结最高温度1280~1340℃,烧结最高温度保温时间3~7小时,保温时氧气含量在2.8%~3.5%,然后在氮气保护气氛中冷却到室温,得到所要的软磁铁氧体材料。
3.根据权利要求2所述的一种宽温超低损耗锰锌铁氧体材料的制备方法,其特征在于:步骤2所述预烧时,最高温度为850~900℃;最高温度保温时间为2~5小时;预烧工艺见表1:
表1
Figure FDA0003039915390000011
4.根据权利要求2所述的一种宽温超低损耗锰锌铁氧体材料的制备方法,其特征在于:造粒时,入口温度控制在280~320℃之间,出口温度为90~120℃。
CN202110454202.3A 2021-04-26 2021-04-26 一种宽温超低损耗锰锌铁氧体材料及其制备方法 Pending CN113024239A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110454202.3A CN113024239A (zh) 2021-04-26 2021-04-26 一种宽温超低损耗锰锌铁氧体材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110454202.3A CN113024239A (zh) 2021-04-26 2021-04-26 一种宽温超低损耗锰锌铁氧体材料及其制备方法

Publications (1)

Publication Number Publication Date
CN113024239A true CN113024239A (zh) 2021-06-25

Family

ID=76454644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110454202.3A Pending CN113024239A (zh) 2021-04-26 2021-04-26 一种宽温超低损耗锰锌铁氧体材料及其制备方法

Country Status (1)

Country Link
CN (1) CN113024239A (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023029255A1 (zh) * 2021-09-03 2023-03-09 天通控股股份有限公司 一种汽车电子用宽温高磁导率锰锌软磁铁氧体及制备方法
CN116813323A (zh) * 2023-07-07 2023-09-29 上海宝钢磁业有限公司 一种适用于25~140℃的宽温低损耗软磁锰锌铁氧体材料及其制备方法和应用
CN117125970A (zh) * 2023-08-24 2023-11-28 山东凯通电子有限公司 一种宽温高直流低功耗的锰锌铁氧体磁芯及其制备方法
WO2024082623A1 (zh) * 2022-10-18 2024-04-25 横店集团东磁股份有限公司 一种锰锌铁氧体材料及其制备方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143638A (en) * 1990-03-03 1992-09-01 Kawasaki Steel Corporation Low power loss mn-zn ferrites
JPH0570220A (ja) * 1991-03-04 1993-03-23 Kawasaki Steel Corp マンガン−亜鉛系フエライト
JP2005119892A (ja) * 2003-10-14 2005-05-12 Fdk Corp 低損失フェライト
CN102161585A (zh) * 2011-01-20 2011-08-24 绵阳开磁科技有限公司 高频宽温低功耗软磁锰锌铁氧体及其制备方法
CN102693807A (zh) * 2012-02-23 2012-09-26 横店集团东磁股份有限公司 一种超宽温低损耗高磁通密度MnZn功率铁氧体及其制备方法
CN103396111A (zh) * 2013-08-12 2013-11-20 江苏省晶石磁性材料与器件工程技术研究有限公司 一种高频宽温低损耗锰锌铁氧体及其制造工艺
CN104591711A (zh) * 2014-12-19 2015-05-06 江门安磁电子有限公司 用于-40~160℃的低损耗锰锌铁氧体材料及其制造方法
CN106278228A (zh) * 2016-08-16 2017-01-04 绵阳开元磁性材料有限公司 宽温宽频的磁锰锌铁氧体及其制备方法
CN110776314A (zh) * 2019-12-23 2020-02-11 贵州正业龙腾新材料开发有限公司 一种宽高频抗emi用锰锌铁氧体材料及其制备方法
CN111138180A (zh) * 2019-12-25 2020-05-12 江门安磁电子有限公司 一种宽频高阻抗锰锌铁氧体材料及其制备方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143638A (en) * 1990-03-03 1992-09-01 Kawasaki Steel Corporation Low power loss mn-zn ferrites
JPH0570220A (ja) * 1991-03-04 1993-03-23 Kawasaki Steel Corp マンガン−亜鉛系フエライト
JP2005119892A (ja) * 2003-10-14 2005-05-12 Fdk Corp 低損失フェライト
CN102161585A (zh) * 2011-01-20 2011-08-24 绵阳开磁科技有限公司 高频宽温低功耗软磁锰锌铁氧体及其制备方法
CN102693807A (zh) * 2012-02-23 2012-09-26 横店集团东磁股份有限公司 一种超宽温低损耗高磁通密度MnZn功率铁氧体及其制备方法
CN103396111A (zh) * 2013-08-12 2013-11-20 江苏省晶石磁性材料与器件工程技术研究有限公司 一种高频宽温低损耗锰锌铁氧体及其制造工艺
CN104591711A (zh) * 2014-12-19 2015-05-06 江门安磁电子有限公司 用于-40~160℃的低损耗锰锌铁氧体材料及其制造方法
CN106278228A (zh) * 2016-08-16 2017-01-04 绵阳开元磁性材料有限公司 宽温宽频的磁锰锌铁氧体及其制备方法
CN110776314A (zh) * 2019-12-23 2020-02-11 贵州正业龙腾新材料开发有限公司 一种宽高频抗emi用锰锌铁氧体材料及其制备方法
CN111138180A (zh) * 2019-12-25 2020-05-12 江门安磁电子有限公司 一种宽频高阻抗锰锌铁氧体材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
夏德贵编著: "《软磁铁氧体制造原理与技术》", 31 December 2010 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023029255A1 (zh) * 2021-09-03 2023-03-09 天通控股股份有限公司 一种汽车电子用宽温高磁导率锰锌软磁铁氧体及制备方法
WO2024082623A1 (zh) * 2022-10-18 2024-04-25 横店集团东磁股份有限公司 一种锰锌铁氧体材料及其制备方法
CN116813323A (zh) * 2023-07-07 2023-09-29 上海宝钢磁业有限公司 一种适用于25~140℃的宽温低损耗软磁锰锌铁氧体材料及其制备方法和应用
CN117125970A (zh) * 2023-08-24 2023-11-28 山东凯通电子有限公司 一种宽温高直流低功耗的锰锌铁氧体磁芯及其制备方法

Similar Documents

Publication Publication Date Title
CN113024239A (zh) 一种宽温超低损耗锰锌铁氧体材料及其制备方法
CN107555984B (zh) 一种高频宽温低损耗MnZn铁氧体的烧结过程气氛控制方法
CN105565790B (zh) Yr950宽温高直流叠加低功耗锰锌铁氧体材料及其制备方法
CN107473727B (zh) 一种宽频宽温高功率密度低损耗锰锌软磁铁氧体材料及其制备方法
CN101692365B (zh) 一种镍锌软磁铁氧体材料及其制备方法
CN103396109B (zh) 一种高频低损耗软磁铁氧体磁芯材料及其制备方法
CN112979301B (zh) 高频高温低损耗MnZn功率铁氧体材料及其制备方法
CN108863333B (zh) 一种制备高性能NiZn铁氧体的Cu、V、Bi、Co离子联合替代方法
CN103382109B (zh) 一种镍锌软磁铁氧体材料及其制备方法
CN106810233A (zh) 高频低损耗锰锌铁氧体及其制造方法
CN101388268A (zh) 一种高磁导率低温烧结NiCuZn铁氧体材料
CN102211929A (zh) 一种低温烧结高磁导率NiCuZn铁氧体材料
CN113277840A (zh) 一种高频高工作磁密低损耗锰锌铁氧体及其制备方法
CN103382108B (zh) 一种低功耗软磁锰锌铁氧体材料及其制备方法
CN112592170A (zh) 锰锌铁氧体材料及其制备方法和应用
CN112408969A (zh) 一种宽温低功耗的锰锌铁氧体材料及其制备方法
CN103382102B (zh) 一种低温烧结镍锌铜软磁铁氧体材料及其制备方法
CN103382110B (zh) 一种Mn-Zn系高磁导率软磁铁氧体材料及其制备方法
CN103396112B (zh) 一种软磁铁氧体材料及其制备方法
CN102063989B (zh) 高饱和磁通、高直流叠加、低损耗的软磁材料及其制备方法
CN115677337B (zh) 一种功率铁氧体材料及其制备方法与应用
CN108863338A (zh) 一种锰锌功率铁氧体的六段气氛控制方法
CN1023583C (zh) 低损耗氧化物磁性材料及制造方法
CN103396113B (zh) 一种软磁镍锌铁氧体材料及其制备方法
CN114573334B (zh) 高功率高居里温度低线宽石榴石铁氧体及制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210625