CN112592169A - 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法 - Google Patents

一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法 Download PDF

Info

Publication number
CN112592169A
CN112592169A CN202011482036.XA CN202011482036A CN112592169A CN 112592169 A CN112592169 A CN 112592169A CN 202011482036 A CN202011482036 A CN 202011482036A CN 112592169 A CN112592169 A CN 112592169A
Authority
CN
China
Prior art keywords
ferrite
temperature
wide
led
spray tower
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
CN202011482036.XA
Other languages
English (en)
Inventor
王文彬
陈俊烨
辛本奎
陈华宾
伊玉翔
顾仕鑫
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.)
SHANDONG KAITONG ELECTRON CO LTD
Original Assignee
SHANDONG KAITONG ELECTRON 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 SHANDONG KAITONG ELECTRON CO LTD filed Critical SHANDONG KAITONG ELECTRON CO LTD
Priority to CN202011482036.XA priority Critical patent/CN112592169A/zh
Publication of CN112592169A publication Critical patent/CN112592169A/zh
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped 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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped 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
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3293—Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO]
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Landscapes

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

Abstract

本发明公开了一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，包括：Fe2O3、MnO、ZnO、聚乙烯醇、辅料、粘结剂和添加剂；本发明铁氧体在性能方面与其他同行先进指标相比，本发明铁氧体在25‑140℃宽温、高频低功耗基础上，‑40℃～25℃功耗进一步降低，同时饱和磁通密度Bs进一步提高，25℃Bs比常规的PC95类材料提高10mT，100℃Bs比常规类PC95材料提高20mT，居里温度达到230℃以上，因而具有良好的直流叠加特性。本发明铁氧体具有更低的使用损耗，且生产合格率高。

Description

一种LED用宽温高频低损耗、高磁导率锰锌铁氧体及其制备 方法
技术领域
本发明涉及磁性材料生产制造领域，具体的说涉及一种LED用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法。
背景技术
目前我国能源日益紧缺，节约能源是全球共同的目标。通过国家有关部门预测，2020年我国用电量将达7.8万亿度，照明用电量将超过9000亿度。如果在这个领域上节省50％，那将是4500亿度。所以如何降低照明用电能耗成为了当前迫在眉睫的问题。LED无疑在这个领域有着非常大的应用地位和前景以及无穷的商机。
LED取代型灯具及其他新型LED照明的发展十分迅速，从大批量DC/DC 电源的低电流、高亮度LED(用于手机、标识及笔记本电脑)，到AC/DC电源的更高电流LED(一般是照明应用)的离线型LED照明电源的发展将是主流，因此对大功率低损耗铁氧体的要求也越来越高。愈来愈多的业内人士认识到，要充分发挥LED的潜能，照明驱动电源是关键的支撑因素之一。对于LED照明驱动电源，当前的主要诉求集中在高可靠性、高效节能等方面。要具有高的可靠性，需要与LED光源相匹配的长寿命，宽的工作温度适应性(-40℃-65℃，甚至-55℃-85℃)，宽的电网适应及自保护性能等。这要求电源要有良好的 EMC，较高的功率因数(PFC)，基于以上LED电源对电源高效率及高可靠性的要求。
因此提供一种LED用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法是本领域技术人员亟需解决的技术问题。
发明内容
有鉴于此，本发明提供了一种宽温高频低损耗、高磁导率锰锌铁氧体，其性能在25-140℃宽温、高频低功耗基础上，-40℃～25℃功耗进一步降低，同时饱和磁通密度Bs进一步提高，25℃Bs比常规的PC95类材料提高10mT， 100℃Bs比常规类PC95材料提高20mT，居里温度达到230℃以上。
为了实现上述目的，本发明采用如下技术方案：
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，包括以下物质的量分数原料：Fe2O365.6-75.3％、MnO 18.5-25.5％、ZnO 4.9-9.5％、7-9‰聚乙烯醇、余量为添加剂。
进一步，所述辅助添加剂为CaO、SiO2、V2O5、ZrO2、Nb2O5、TiO2、SnO2 和Co2O3中的一种或多种混合。
采用上述进一步的有益效果在于：掺杂改性是对粉体性能快速提升的重要手段，本发明添加物对Mn-Zn铁氧体微观结构的影响非常明显。宽温低功耗材料的宽温特性改善主要依靠掺杂工艺优化。CaO、SiO2课在晶界形成高电阻率的绝缘层，提高电阻率，降低涡流损耗；V2O5为低熔点杂质可以降低烧结温度150℃-200℃，且能提高烧结密度和电阻率，细化晶粒，从而获得高密度细晶粒结构，进而提升Bs和叠加特性。ZrO2和Nb2O5能细化晶粒，使得晶粒大小均匀，内应力小，进一步降低涡流损耗。TiO2、SnO2、Co2O3类的添加剂能改善宽温特性，降低宽温功耗，同时降低-40-25℃的功耗。
本发明还提供了上述LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，包括以下步骤：
(1)按上述物质的量分数称取各原料，并将：Fe2O3、MnO和ZnO用干法混合均匀后，将混料溶于水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥；
(3)将喷雾干燥后的材料放入电阻炉中并在保护气体条件下进行预烧；
(4)将预烧后的材料进行湿法粉碎，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料；
(6)将颗粒料送至烧结窑中进行进行烧结，得到软磁铁氧体；
(7)将软磁铁氧体磁心通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
进一步，上述步骤(1)中干法混合时间为60-70min；
所述水为去离子水。
采用上述进一步的有益效果在于：能够防止杂质粒子进入。
进一步，上述步骤(2)中喷雾塔进风温度为210-230℃，喷雾塔出风温度为90-110℃。
采用上述进一步的有益效果在于：本发明上述操作可以保证造粒均匀性。
进一步，上述步骤(3)中保护气体为氮气，且整个预烧结气氛中含有1-2％质量分数的氧气；
所述预烧温度为810-850℃，所述预烧时间为120-180min。
采用上述进一步的有益效果在于：进行预烧结能够有效去除杂质酸根离子。
进一步，上述步骤(4)中湿法粉碎时间为60-80min；粉碎粒度为1.0-1.3 μm。
采用上述进一步的有益效果在于：湿法粉碎能有效保证喷雾造粒和粉料性能的稳定性。
进一步，上述步骤(5)中喷雾塔进风温度为210-230℃，喷雾塔出风温度为90-110℃。
步骤(6)中所述烧结温度为1360℃，进风量80m3/h，窑压为1.6KPa，保温氧含量为6％，在1000℃-1250℃下致密化致O2含量在1％以下。
采用上述进一步的有益效果在于：本发明的烧结方法能保证产品晶粒均匀及性能优良生成。
进一步，上述步骤(7)中磨加工操作方法为通过四轴780磨床磨面-磨底-磨面进行磨加工。
采用上述进一步的有益效果在于：本发明采用的磨加工操作方法能完成产品加工正常操作。
本发明的有益效果在于：本发明铁氧体在性能方面与其他同行先进指标相比，本发明铁氧体在25-140℃宽温、高频低功耗基础上，-40℃～25℃功耗进一步降低，同时饱和磁通密度Bs进一步提高，25℃Bs比常规的PC95类材料提高10mT，100℃Bs比常规类PC95材料提高20mT，居里温度达到230℃以上，因而具有良好的直流叠加特性。本发明铁氧体具有更低的使用损耗，且生产合格率高。
具体实施方式
下面将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。
本发明实施例中所有氧气含量百分比均为烧结气氛质量分数。
实施例1
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体
(1)按百分比称取Fe2O375.3％、MnO 18.5％、ZnO 4.9％、聚乙烯醇7‰以及余量添加剂，辅助添加剂为V2O5和ZrO2；
并将：Fe2O3、MnO和ZnO用干法混合60min后，将混料溶于去离子水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥，喷雾塔进风温度为230℃，喷雾塔出风温度为110℃；
(3)将喷雾干燥后的材料放入电阻炉中并在氮气下810℃条件下预烧 120min，整个预烧结气氛中含有2％质量分数的氧气；
(4)将预烧后的材料进行湿法粉碎60min至粒度为1.3μm，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料，喷雾塔进风温度为230℃，喷雾塔出风温度为110℃；
(6)将颗粒料送至1200℃的烧结窑中然后升温至1360℃烧结，控制进风量为80m3/h，窑压为1.6KPa，保温氧含量为6％，在1250℃下致密化致O2含量在1％以下，得到软磁铁氧体；
(7)将软磁铁氧体通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
实施例2
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体
(1)按百分比称取Fe2O365.6％、MnO 25.5％、ZnO 9.5％、聚乙烯醇7‰以及余量添加剂，辅助添加剂为CaO和SiO2；
并将：Fe2O3、MnO和ZnO用干法混合70min后，将混料溶于去离子水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥，喷雾塔进风温度为210℃，喷雾塔出风温度为90℃；
(3)将喷雾干燥后的材料放入电阻炉中并在氮气下850℃条件下预烧 120min，整个预烧结气氛中含有1％质量分数的氧气；
(4)将预烧后的材料进行湿法粉碎80min至粒度为1.0μm，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料，喷雾塔进风温度为210℃，喷雾塔出风温度为90℃；
(6)将颗粒料送至500℃的烧结窑中然后升温至1360℃烧结，控制进风量为80m3/h，窑压为1.6KPa，保温氧含量为6％，在1000℃℃下致密化致O2含量在1％以下，得到软磁铁氧体；
(7)将软磁铁氧体通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
实施例3
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体
(1)按百分比称取Fe2O368.8％、MnO 21.2％、ZnO 8.4％、聚乙烯醇7-9‰以及余量添加剂，辅助添加剂为Nb2O5、TiO2和Co2O3；
并将：Fe2O3、MnO和ZnO用干法混合65min后，将混料溶于去离子水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥，喷雾塔进风温度为220℃，喷雾塔出风温度为110℃；
(3)将喷雾干燥后的材料放入电阻炉中并在氮气下830℃条件下预烧 150min，整个预烧结气氛中含有1.5％质量分数的氧气；
(4)将预烧后的材料进行湿法粉碎70min至粒度为1.2μm，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料，喷雾塔进风温度为220℃，喷雾塔出风温度为100℃；
(6)将颗粒料送至1000℃的烧结窑中然后升温至1360℃烧结，控制进风量为80m3/h，窑压为1.6KPa，保温氧含量为6％，在1150℃下致密化致O2含量在1％以下，得到软磁铁氧体；
(7)将软磁铁氧体通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
实施例4
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体
(1)按百分比称取Fe2O369.2％、MnO 23.3％、ZnO 6.8％、聚乙烯醇8‰以及余量添加剂，辅助添加剂为Co2O3；
并将：Fe2O3、MnO和ZnO用干法混合70min后，将混料溶于去离子水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥，喷雾塔进风温度为220℃，喷雾塔出风温度为100℃；
(3)将喷雾干燥后的材料放入电阻炉中并在氮气下840℃条件下预烧 170min，整个预烧结气氛中含有1.4％质量分数的氧气；
(4)将预烧后的材料进行湿法粉碎75min至粒度为1.1μm，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料，喷雾塔进风温度为215℃，喷雾塔出风温度为100℃；
(6)将颗粒料送至800℃的烧结窑中然后升温至1360℃烧结，控制进风量为80m3/h，窑压为1.6KPa，保温氧含量为6％，在1100℃下致密化致O2含量在1％以下，得到软磁铁氧体；
(7)将软磁铁氧体通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
实施例5
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体
(1)按百分比称取Fe2O371.2％、MnO 21.3％、ZnO 5.6％、聚乙烯醇7‰以及余量添加剂，辅助添加剂为V2O5和Co2O3；
并将：Fe2O3、MnO和ZnO用干法混合65min后，将混料溶于去离子水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥，喷雾塔进风温度为230℃，喷雾塔出风温度为100℃；
(3)将喷雾干燥后的材料放入电阻炉中并在氮气下820℃条件下预烧 140min，整个预烧结气氛中含有2％质量分数的氧气；
(4)将预烧后的材料进行湿法粉碎65min至粒度为1.3μm，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料，喷雾塔进风温度为230℃，喷雾塔出风温度为90℃；
((6)将颗粒料送至1100℃的烧结窑中然后升温至1360℃烧结，控制进风量为80m3/h，窑压为1.6KPa，保温氧含量为6％，在1200℃下致密化致 O2含量在1％以下，得到软磁铁氧体；
(7)将软磁铁氧体通过四轴780磨床磨面-磨底-磨面进行磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
试验例
将本发明实施例1-5制得的产品与常规95材料进行性能对比，结果如表 1所示。
表1
Figure RE-GDA0002949178090000081
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

1.一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，其特征在于，包括以下物质的量分数原料：Fe2O3 65.6-75.3％、MnO 18.5-25.5％、ZnO 4.9-9.5％、聚乙烯醇7-9‰、余量为添加剂。
2.根据权利要求1所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，其特征在于，所述辅助添加剂为CaO、SiO2、V2O5、ZrO2、Nb2O5、TiO2、SnO2和Co2O3中的一种或多种混合。
3.一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，包括以下步骤：
(1)按权利要求1或2所述物质的量分数称取各原料，并将：Fe2O3、MnO和ZnO用干法混合均匀后，将混料溶于水中，得到浆料；
(2)将浆料送入至喷雾塔中进行喷雾干燥；
(3)将喷雾干燥后的材料放入电阻炉中并在保护气体条件下进行预烧；
(4)将预烧后的材料进行湿法粉碎，并混合加入添加剂，然后将粉碎后的材料溶于水中；
(5)将聚乙烯醇加入至步骤(4)所得溶液中，然后在喷雾塔中进行喷雾干燥得到颗粒料；
(6)将颗粒料送至烧结窑中进行烧结，得到软磁铁氧体；
(7)将软磁铁氧体磁心磨加工，即得高频低损耗、高磁导率锰锌铁氧体。
4.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(1)中所述干法混合时间为60-70min；
所述水为去离子水。
5.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(2)中所述喷雾塔进风温度为210-230℃，喷雾塔出风温度为90-110℃。
6.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(3)中所述保护气体为氮气，且整个预烧结气氛中含有1-2％质量分数的氧气；
所述预烧温度为810-850℃，所述预烧时间为120-180min。
7.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(4)中所述湿法粉碎时间为60-80min；粉碎粒度为1.0-1.3μm。
8.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(5)中所述喷雾塔进风温度为210-230℃，喷雾塔出风温度为90-110℃。
9.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(6)中所述烧结温度为1360℃，进风量80m3/h，窑压为1.6KPa，保温氧含量为6％，在1000℃-1250℃下致密化致O2含量在1％以下。
10.根据权利要求3所述一种LED用宽温高频低损耗、高磁导率锰锌铁氧体的制备方法，其特征在于，步骤(7)中所述磨加工操作方法为通过四轴780磨床磨面-磨底-磨面进行磨加工。
CN202011482036.XA 2020-12-15 2020-12-15 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法 Pending CN112592169A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011482036.XA CN112592169A (zh) 2020-12-15 2020-12-15 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011482036.XA CN112592169A (zh) 2020-12-15 2020-12-15 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法

Publications (1)

Publication Number Publication Date
CN112592169A true CN112592169A (zh) 2021-04-02

Family

ID=75195899

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011482036.XA Pending CN112592169A (zh) 2020-12-15 2020-12-15 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法

Country Status (1)

Country Link
CN (1) CN112592169A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113788672A (zh) * 2021-10-09 2021-12-14 重庆上甲电子股份有限公司 一种锰锌铁氧体制备工艺
CN114634356A (zh) * 2022-03-14 2022-06-17 西南应用磁学研究所(中国电子科技集团公司第九研究所) 一种1MHz下超低损耗锰锌铁氧体材料及其制备方法
CN115196958A (zh) * 2022-06-02 2022-10-18 江苏信维感应材料科技有限公司 一种高频宽温MnZn铁氧体及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142105A (ja) * 1984-08-02 1986-02-28 Tdk Corp マンガン−亜鉛系フエライト材料および高周波電源トランス用磁芯
CN101256866A (zh) * 2007-12-29 2008-09-03 电子科技大学 宽温超低损耗MnZn软磁铁氧体材料及制备方法
CN108558385A (zh) * 2018-04-26 2018-09-21 湖北华磁电子科技有限公司 宽温高效率软磁铁氧体材料及磁芯制备方法和应用
CN109608185A (zh) * 2018-12-27 2019-04-12 日照亿鑫电子材料有限公司 一种高性能锰锌铁氧体材料及其制备方法
CN110171964A (zh) * 2019-04-23 2019-08-27 横店集团东磁股份有限公司 一种高Bs高强度锰锌铁氧体材料及其制备方法
CN111039669A (zh) * 2019-12-30 2020-04-21 苏州冠达磁业有限公司 高强度抗变形锰锌铁氧体及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142105A (ja) * 1984-08-02 1986-02-28 Tdk Corp マンガン−亜鉛系フエライト材料および高周波電源トランス用磁芯
CN101256866A (zh) * 2007-12-29 2008-09-03 电子科技大学 宽温超低损耗MnZn软磁铁氧体材料及制备方法
CN108558385A (zh) * 2018-04-26 2018-09-21 湖北华磁电子科技有限公司 宽温高效率软磁铁氧体材料及磁芯制备方法和应用
CN109608185A (zh) * 2018-12-27 2019-04-12 日照亿鑫电子材料有限公司 一种高性能锰锌铁氧体材料及其制备方法
CN110171964A (zh) * 2019-04-23 2019-08-27 横店集团东磁股份有限公司 一种高Bs高强度锰锌铁氧体材料及其制备方法
CN111039669A (zh) * 2019-12-30 2020-04-21 苏州冠达磁业有限公司 高强度抗变形锰锌铁氧体及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
夏德贵等: "《软磁铁氧体制造原理与技术》", 31 December 2010, 陕西科学技术出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113788672A (zh) * 2021-10-09 2021-12-14 重庆上甲电子股份有限公司 一种锰锌铁氧体制备工艺
CN114634356A (zh) * 2022-03-14 2022-06-17 西南应用磁学研究所(中国电子科技集团公司第九研究所) 一种1MHz下超低损耗锰锌铁氧体材料及其制备方法
CN115196958A (zh) * 2022-06-02 2022-10-18 江苏信维感应材料科技有限公司 一种高频宽温MnZn铁氧体及其制备方法
CN115196958B (zh) * 2022-06-02 2023-08-15 江苏信维感应材料科技有限公司 一种高频宽温MnZn铁氧体及其制备方法

Similar Documents

Publication Publication Date Title
CN112592169A (zh) 一种led用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法
CN104529425B (zh) 一种宽温高磁导率MnZn铁氧体材料及其制造方法
CN103058643B (zh) 宽温高叠加低功耗Mn-Zn软磁铁氧体材料及制备方法
CN103693952B (zh) 一种超低损耗MnZn功率铁氧体材料的制造方法
CN107473727A (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
CN108640670B (zh) 高Bs值、低功率损耗软磁铁氧体材料及磁芯的制备方法
CN103951411A (zh) 宽温低功耗高居里温度锰锌铁氧体材料及制备方法
CN108558384B (zh) 超低功率损耗软磁铁氧体材料及磁芯制备方法和应用
CN101388268A (zh) 一种高磁导率低温烧结NiCuZn铁氧体材料
CN101241791A (zh) 宽温低损耗Mn-Zn系软磁铁氧体及生产方法
WO2022000663A1 (zh) 一种宽温低损耗MnZn铁氧体材料及其制备方法
CN108947513B (zh) 一种低压低温烧结制备的功率镍锌铁氧体及其制备方法
WO2023130731A1 (zh) 一种宽温低损耗高Bs锰锌铁氧体材料的制造方法
CN102751065A (zh) 宽温宽频低损耗MnZn功率铁氧体材料及其制备方法
CN112456994A (zh) 一种低温烧结高频低损耗MnZn软磁铁氧体及其制备方法
CN104072120A (zh) 一种高磁感锰锌铁氧体材料
CN101786871A (zh) 低功耗软磁铁氧体粉料及其高频低功耗软磁铁氧体磁芯和宽温低功耗软磁铁氧体磁芯
CN112694323A (zh) 一种宽温高Bs锰锌铁氧体磁性材料及其制备方法
CN105399411A (zh) 一种锰锌铁氧体低温烧结工艺
CN104557007A (zh) 一种宽温低损耗功率锰锌铁氧体及其制备方法
CN108002428A (zh) 一种蒸镀用ito颗粒的制备方法及由该方法制备的ito颗粒
CN102163480A (zh) 一种led照明控制电路用磁性材料
CN103664155B (zh) 一种超高Bs低损耗MnZn功率铁氧体材料及其制造方法
CN103073277A (zh) 高频MnZn功率铁氧体材料的烧结工艺
CN102751066A (zh) 一种磁性材料不良产品回收再利用工艺

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