CN109534808A - 一种低温升磁芯及其制备方法 - Google Patents

一种低温升磁芯及其制备方法 Download PDF

Info

Publication number
CN109534808A
CN109534808A CN201811487066.2A CN201811487066A CN109534808A CN 109534808 A CN109534808 A CN 109534808A CN 201811487066 A CN201811487066 A CN 201811487066A CN 109534808 A CN109534808 A CN 109534808A
Authority
CN
China
Prior art keywords
parts
magnetic core
temperature
oxide
low
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.)
Withdrawn
Application number
CN201811487066.2A
Other languages
English (en)
Inventor
张辛萌
周景
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.)
Anhui Jingmei Electronics Co Ltd
Original Assignee
Anhui Jingmei Electronics 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 Anhui Jingmei Electronics Co Ltd filed Critical Anhui Jingmei Electronics Co Ltd
Priority to CN201811487066.2A priority Critical patent/CN109534808A/zh
Publication of CN109534808A publication Critical patent/CN109534808A/zh
Withdrawn legal-status Critical Current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
    • C04B35/265—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
    • 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
    • C04B35/6303—Inorganic additives
    • 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
    • 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
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3256—Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
    • 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
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3279—Nickel oxides, nickalates, 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
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/386—Boron nitrides
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606—Drying
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects 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
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects 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
    • C04B2235/6567—Treatment time
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering

Landscapes

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

Abstract

本发明提供一种低温升磁芯及其制备方法，涉及磁芯生产技术领域。所述磁芯由以下重量份的原料制成：氧化铁52‑56份、氧化铜20‑24份、氧化锰14‑18份、氧化镍8‑12份、三氧化二钴16‑20份、氧化铱12‑16份、乙酸乙酯8‑12份、氮化硼4‑8份、五氧化二铌16‑20份、二氧化钼12‑16份、石油醚8‑12份、氮化硅4‑8份、交联剂2‑4份、增韧剂1‑3份、消泡剂1‑2份。本发明克服了现有技术的不足，使制得的磁芯具有低温升的特性，即使在不同电流叠加的状态下，磁芯也能保证大功率，温度上升慢，损耗低，同时有效提高了磁芯的居里温度和阻抗等特性，大大延长了磁芯的使用寿命，内应力小，磁芯性能优越，适宜推广。

Description

一种低温升磁芯及其制备方法
技术领域
本发明涉及磁芯生产技术领域，具体涉及一种低温升磁芯及其制备方法。
背景技术
磁芯是指由各种氧化铁混合物组成的一种烧结磁性金属氧化物。例如，锰-锌铁氧体和镍-锌铁氧体是典型的磁芯体材料。磁芯用于各种电子设备的线圈和变压器中。随着数字通信技术和光纤通信技术的快速发展，传统的模拟通信设备不断地更新淘汰。在电子电路宽带变压器，综合业务数据网、局域网、广域网、背景照明等领域的脉冲变压器和光伏逆变器中共模滤波电感用的高磁导率磁芯，由于变压器等朝着小型化发展，因此对磁芯的特性提出了更高要求。
目前的磁芯的配方组成和生产工艺不合理，导致磁芯的性能较差。特别是在不同电流叠加的状态下，目前的磁芯在保证大功率的同时，由于温度上升较快导致其损耗过高，从而影响其正常使用，使用寿命短，给工作人员带来了较大的麻烦。
发明内容
针对现有技术不足，本发明提供一种低温升磁芯及其制备方法，本发明克服了现有技术的不足，使制得的磁芯具有低温升的特性，即使在不同电流叠加的状态下，磁芯也能保证大功率，温度上升慢，损耗低，同时有效提高了磁芯的居里温度和阻抗等特性，大大延长了磁芯的使用寿命，内应力小，磁芯性能优越，适宜推广。
为实现以上目的，本发明的技术方案通过以下技术方案予以实现：
一种低温升磁芯，所述磁芯由以下重量份的原料制成：氧化铁52-56份、氧化铜20-24份、氧化锰14-18份、氧化镍8-12份、三氧化二钴16-20份、氧化铱12-16份、乙酸乙酯8-12份、氮化硼4-8份、五氧化二铌16-20份、二氧化钼12-16份、石油醚8-12份、氮化硅4-8份、交联剂2-4份、增韧剂1-3份、消泡剂1-2份。
优选的，所述磁芯由以下重量份的原料制成：氧化铁54份、氧化铜22份、氧化锰16份、氧化镍10份、三氧化二钴18份、氧化铱14份、乙酸乙酯10份、氮化硼6份、五氧化二铌18份、二氧化钼14份、石油醚10份、氮化硅6份、交联剂3份、增韧剂2份、消泡剂1.5份。
优选的，所述交联剂为二水氯化钙、环氧氯丙烷和甘羟铝中的一种或多种。
优选的，所述增韧剂为聚酰胺、聚碳酸酯纤维和聚乙烯醇缩丁醛中的一种或多种。
优选的，所述消泡剂为乳化硅油、聚氧乙烯聚氧丙醇胺醚和聚氧丙烯甘油醚中的一种或多种。
一种低温升磁芯的制备方法，所述磁芯的制备方法包括以下步骤：
(1)将氧化铁、氧化铜、氧化锰和氧化镍混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得磁芯基料备用；
(2)将三氧化二钴、氧化铱和氮化硼混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入乙酸乙酯、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第一磁芯辅料备用；
(3)将五氧化二铌、二氧化钼和氮化硅混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入石油醚、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第二磁芯辅料备用；
(4)将上述步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料混合后倒入砂磨机中，再加入消泡剂进行混合研磨，后将其混合物倒入高速分散机中，分散一段时间后将其混合物倒入干燥机进行干燥，干燥后得到磁芯原料备用；
(5)将上述步骤(4)中的磁芯原料通过压制成型得到磁芯坯料，再将磁芯坯料放入退火炉中，升温至1250-1300℃，保温退火2-4h，后降温至400-500℃，保温1-2h后自然冷却至室温得到产品。
优选的，步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料均破碎至粒度为1-3cm，后研磨至粒度为1-3mm，且每次交联剂和增韧剂的添加量均为配方中量的1/3。
优选的，步骤(4)中的磁芯原料的粒度为0.01-0.03mm，以1000-1200r/min的速度分散20-30min，且干燥温度为200-240℃，干燥至湿度为3-7％。
本发明提供一种低温升磁芯及其制备方法，与现有技术相比优点在于：
(1)本发明采用三氧化二钴、氧化铱、乙酸乙酯、氮化硼、五氧化二铌、二氧化钼、石油醚和氮化硅等原料制得两种辅料，并将其与磁芯基料进行混合，使制得的磁芯具有低温升的特性，大大延长了磁芯的使用寿命，即使在不同电流叠加的状态下，磁芯也能保证大功率，温度上升慢，损耗低，同时有效提高了磁芯的居里温度和阻抗等特性，磁芯性能优越，适宜推广；
(2)本发明将磁芯基料和两种辅料通过破碎、多级研磨和高速分散的方式使得各组分混合均匀且细度均匀，同时交联剂、增韧剂和消泡剂的配合，使各组分相互联结，消除气泡且提高其韧性，最后通过高温退火、再降温退火、后自然冷却至室温，使得磁芯得到有效烧结，从而有效降低其内应力，磁芯性能优良、便于使用。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面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作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1：
一种低温升磁芯，所述磁芯由以下重量份的原料制成：氧化铁52份、氧化铜20份、氧化锰14份、氧化镍8份、三氧化二钴16份、氧化铱12份、乙酸乙酯8份、氮化硼4份、五氧化二铌16份、二氧化钼12份、石油醚8份、氮化硅4份、交联剂2份、增韧剂1份、消泡剂1份。
其中，所述交联剂为二水氯化钙、环氧氯丙烷和甘羟铝中的一种或多种；所述增韧剂为聚酰胺、聚碳酸酯纤维和聚乙烯醇缩丁醛中的一种或多种；所述消泡剂为乳化硅油、聚氧乙烯聚氧丙醇胺醚和聚氧丙烯甘油醚中的一种或多种。
所述磁芯的制备方法包括以下步骤：
(1)将氧化铁、氧化铜、氧化锰和氧化镍混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得磁芯基料备用；
(2)将三氧化二钴、氧化铱和氮化硼混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入乙酸乙酯、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第一磁芯辅料备用；
(3)将五氧化二铌、二氧化钼和氮化硅混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入石油醚、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第二磁芯辅料备用；
(4)将上述步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料混合后倒入砂磨机中，再加入消泡剂进行混合研磨，后将其混合物倒入高速分散机中，分散一段时间后将其混合物倒入干燥机进行干燥，干燥后得到磁芯原料备用；
(5)将上述步骤(4)中的磁芯原料通过压制成型得到磁芯坯料，再将磁芯坯料放入退火炉中，升温至1250-1300℃，保温退火2-4h，后降温至400-500℃，保温1-2h后自然冷却至室温得到产品。
其中，步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料均破碎至粒度为1-3cm，后研磨至粒度为1-3mm，且每次交联剂和增韧剂的添加量均为配方中量的1/3；步骤(4)中的磁芯原料的粒度为0.01-0.03mm，以1000-1200r/min的速度分散20-30min，且干燥温度为200-240℃，干燥至湿度为3-7％。
实施例2：
一种低温升磁芯，所述磁芯由以下重量份的原料制成：氧化铁54份、氧化铜22份、氧化锰16份、氧化镍10份、三氧化二钴18份、氧化铱14份、乙酸乙酯10份、氮化硼6份、五氧化二铌18份、二氧化钼14份、石油醚10份、氮化硅6份、交联剂3份、增韧剂2份、消泡剂1.5份。
其中，所述交联剂为二水氯化钙、环氧氯丙烷和甘羟铝中的一种或多种；所述增韧剂为聚酰胺、聚碳酸酯纤维和聚乙烯醇缩丁醛中的一种或多种；所述消泡剂为乳化硅油、聚氧乙烯聚氧丙醇胺醚和聚氧丙烯甘油醚中的一种或多种。
所述磁芯的制备方法包括以下步骤：
(1)将氧化铁、氧化铜、氧化锰和氧化镍混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得磁芯基料备用；
(2)将三氧化二钴、氧化铱和氮化硼混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入乙酸乙酯、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第一磁芯辅料备用；
(3)将五氧化二铌、二氧化钼和氮化硅混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入石油醚、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第二磁芯辅料备用；
(4)将上述步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料混合后倒入砂磨机中，再加入消泡剂进行混合研磨，后将其混合物倒入高速分散机中，分散一段时间后将其混合物倒入干燥机进行干燥，干燥后得到磁芯原料备用；
(5)将上述步骤(4)中的磁芯原料通过压制成型得到磁芯坯料，再将磁芯坯料放入退火炉中，升温至1250-1300℃，保温退火2-4h，后降温至400-500℃，保温1-2h后自然冷却至室温得到产品。
其中，步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料均破碎至粒度为1-3cm，后研磨至粒度为1-3mm，且每次交联剂和增韧剂的添加量均为配方中量的1/3；步骤(4)中的磁芯原料的粒度为0.01-0.03mm，以1000-1200r/min的速度分散20-30min，且干燥温度为200-240℃，干燥至湿度为3-7％。
实施例3：
一种低温升磁芯，所述磁芯由以下重量份的原料制成：氧化铁56份、氧化铜24份、氧化锰18份、氧化镍12份、三氧化二钴20份、氧化铱16份、乙酸乙酯12份、氮化硼8份、五氧化二铌20份、二氧化钼16份、石油醚12份、氮化硅8份、交联剂4份、增韧剂3份、消泡剂2份。
其中，所述交联剂为二水氯化钙、环氧氯丙烷和甘羟铝中的一种或多种；所述增韧剂为聚酰胺、聚碳酸酯纤维和聚乙烯醇缩丁醛中的一种或多种；所述消泡剂为乳化硅油、聚氧乙烯聚氧丙醇胺醚和聚氧丙烯甘油醚中的一种或多种。
所述磁芯的制备方法包括以下步骤：
(1)将氧化铁、氧化铜、氧化锰和氧化镍混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得磁芯基料备用；
(2)将三氧化二钴、氧化铱和氮化硼混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入乙酸乙酯、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第一磁芯辅料备用；
(3)将五氧化二铌、二氧化钼和氮化硅混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入石油醚、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第二磁芯辅料备用；
(4)将上述步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料混合后倒入砂磨机中，再加入消泡剂进行混合研磨，后将其混合物倒入高速分散机中，分散一段时间后将其混合物倒入干燥机进行干燥，干燥后得到磁芯原料备用；
(5)将上述步骤(4)中的磁芯原料通过压制成型得到磁芯坯料，再将磁芯坯料放入退火炉中，升温至1250-1300℃，保温退火2-4h，后降温至400-500℃，保温1-2h后自然冷却至室温得到产品。
其中，步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料均破碎至粒度为1-3cm，后研磨至粒度为1-3mm，且每次交联剂和增韧剂的添加量均为配方中量的1/3；步骤(4)中的磁芯原料的粒度为0.01-0.03mm，以1000-1200r/min的速度分散20-30min，且干燥温度为200-240℃，干燥至湿度为3-7％。
实施例4：
检测本发明磁芯的各项性能，选取上述实施例1-3所制得的磁芯和市面上普通的磁芯，以实施例1-3所得磁芯为实验组1-3，普通磁芯为对照组，结果如下表所示：
组别 实验组1 实验组2 实验组3 对照组
温升范围(℃) ＜13 ＜10 ＜15 ＜25
损耗(w/m<sup>3</sup>) 305 290 315 535
阻抗(D) 186 223 208 131
居里温度(℃) 375 442 419 125
由上表可知，本发明所制得磁芯的各项性能远远优于普通磁芯，且实施例2所制得的磁芯的各项性能最佳。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：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；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (8)

1.一种低温升磁芯，其特征在于，所述磁芯由以下重量份的原料制成：氧化铁52-56份、氧化铜20-24份、氧化锰14-18份、氧化镍8-12份、三氧化二钴16-20份、氧化铱12-16份、乙酸乙酯8-12份、氮化硼4-8份、五氧化二铌16-20份、二氧化钼12-16份、石油醚8-12份、氮化硅4-8份、交联剂2-4份、增韧剂1-3份、消泡剂1-2份。
2.根据权利要求1所述的一种低温升磁芯，其特征在于，所述磁芯由以下重量份的原料制成：氧化铁54份、氧化铜22份、氧化锰16份、氧化镍10份、三氧化二钴18份、氧化铱14份、乙酸乙酯10份、氮化硼6份、五氧化二铌18份、二氧化钼14份、石油醚10份、氮化硅6份、交联剂3份、增韧剂2份、消泡剂1.5份。
3.根据权利要求1-2所述的一种低温升磁芯，其特征在于，所述交联剂为二水氯化钙、环氧氯丙烷和甘羟铝中的一种或多种。
4.根据权利要求1-2所述的一种低温升磁芯，其特征在于，所述增韧剂为聚酰胺、聚碳酸酯纤维和聚乙烯醇缩丁醛中的一种或多种。
5.根据权利要求1-2所述的一种低温升磁芯，其特征在于，所述消泡剂为乳化硅油、聚氧乙烯聚氧丙醇胺醚和聚氧丙烯甘油醚中的一种或多种。
6.一种低温升磁芯的制备方法，其特征在于，所述磁芯的制备方法包括以下步骤：
(1)将氧化铁、氧化铜、氧化锰和氧化镍混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得磁芯基料备用；
(2)将三氧化二钴、氧化铱和氮化硼混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入乙酸乙酯、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第一磁芯辅料备用；
(3)将五氧化二铌、二氧化钼和氮化硅混合后倒入破碎机中进行混合破碎，后将其混合物倒入砂磨机中，加入石油醚、交联剂和增韧剂，再加入1-2倍体积的去离子水进行混合研磨，得第二磁芯辅料备用；
(4)将上述步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料混合后倒入砂磨机中，再加入消泡剂进行混合研磨，后将其混合物倒入高速分散机中，分散一段时间后将其混合物倒入干燥机进行干燥，干燥后得到磁芯原料备用；
(5)将上述步骤(4)中的磁芯原料通过压制成型得到磁芯坯料，再将磁芯坯料放入退火炉中，升温至1250-1300℃，保温退火2-4h，后降温至400-500℃，保温1-2h后自然冷却至室温得到产品。
7.根据权利要求6所述的一种低温升磁芯的制备方法，其特征在于：步骤(1)、(2)和(3)中的磁芯基料、第一磁芯辅料和第二磁芯辅料均破碎至粒度为1-3cm，后研磨至粒度为1-3mm，且每次交联剂和增韧剂的添加量均为配方中量的1/3。
8.根据权利要求6所述的一种低温升磁芯的制备方法，其特征在于：步骤(4)中的磁芯原料的粒度为0.01-0.03mm，以1000-1200r/min的速度分散20-30min，且干燥温度为200-240℃，干燥至湿度为3-7％。
CN201811487066.2A 2018-12-06 2018-12-06 一种低温升磁芯及其制备方法 Withdrawn CN109534808A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811487066.2A CN109534808A (zh) 2018-12-06 2018-12-06 一种低温升磁芯及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811487066.2A CN109534808A (zh) 2018-12-06 2018-12-06 一种低温升磁芯及其制备方法

Publications (1)

Publication Number Publication Date
CN109534808A true CN109534808A (zh) 2019-03-29

Family

ID=65853045

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811487066.2A Withdrawn CN109534808A (zh) 2018-12-06 2018-12-06 一种低温升磁芯及其制备方法

Country Status (1)

Country Link
CN (1) CN109534808A (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002054419A1 (fr) * 2000-12-27 2002-07-11 Fdk Corporation Materiau magnetique d'oxyde presentant une faible perte magnetique
JP2006182571A (ja) * 2004-12-24 2006-07-13 Taiyo Yuden Co Ltd 酸化物磁性材料
CN1929048A (zh) * 2006-09-05 2007-03-14 电子科技大学 一种高磁导率、高居里温度的NiZn软磁铁氧体材料及其制备方法
JP2014091644A (ja) * 2012-11-01 2014-05-19 Tdk Corp フェライト組成物、フェライトコアおよび電子部品
JP6465240B1 (ja) * 2018-05-28 2019-02-06 Tdk株式会社 フェライト組成物および積層電子部品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002054419A1 (fr) * 2000-12-27 2002-07-11 Fdk Corporation Materiau magnetique d'oxyde presentant une faible perte magnetique
JP2006182571A (ja) * 2004-12-24 2006-07-13 Taiyo Yuden Co Ltd 酸化物磁性材料
CN1929048A (zh) * 2006-09-05 2007-03-14 电子科技大学 一种高磁导率、高居里温度的NiZn软磁铁氧体材料及其制备方法
JP2014091644A (ja) * 2012-11-01 2014-05-19 Tdk Corp フェライト組成物、フェライトコアおよび電子部品
JP6465240B1 (ja) * 2018-05-28 2019-02-06 Tdk株式会社 フェライト組成物および積層電子部品

Similar Documents

Publication Publication Date Title
CN101857427B (zh) 一种高频低损耗MnZn铁氧体材料及其制造方法
CN101575206B (zh) 高频大功率镍锌基软磁铁氧体材料及其制造方法
CN101859622B (zh) 一种中频低损耗MnZn铁氧体磁芯的制造方法
CN103626488B (zh) 微波陶瓷介质材料及其制备方法
CN104934181B (zh) 一种软磁MnZn系功率铁氧体
CN101857426B (zh) 一种宽频高阻抗MnZn铁氧体材料及其制造方法
CN109574647A (zh) 一种高强度磁芯及其制备方法
CN103833346B (zh) 一种宽频MnZn铁氧体材料及其制备工艺
CN108129143B (zh) 高叠加特性宽温低功耗锰锌软磁铁氧体及其制备方法
CN108558385B (zh) 宽温高效率软磁铁氧体材料及磁芯制备方法和应用
CN104150894B (zh) 一种耐热冲击镍锌铁氧体及其制备方法
CN104529425A (zh) 一种宽温高磁导率MnZn铁氧体材料及其制造方法
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
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
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
CN109678484A (zh) 高磁导率宽频高阻抗镍锌软磁铁氧体材料及其制备方法
CN107459344A (zh) 一种宽温低损耗且高Bs的MnZn铁氧体材料及其制造方法
CN104944933A (zh) 高频变压器用高电感值高磁导率铁氧体磁芯的制备方法
CN113651609A (zh) 一种微波铁氧体材料及其制备方法与应用
CN110922179B (zh) 一种高磁导率低损耗铁氧体材料及其制备方法
CN109534807A (zh) 一种抗开裂铁氧体磁芯及其制备方法
CN109534808A (zh) 一种低温升磁芯及其制备方法
CN101863656A (zh) 一种节能照明用锰锌软磁铁氧体材料及所得磁芯的制备方法
CN105036722A (zh) NiCuZn铁氧体及其制备方法
CN101183586A (zh) 高磁导率、低thd软磁铁氧体磁性材料及其制备方法

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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20190329