CN106830093A - 高性能永磁铁氧体的制备方法 - Google Patents

高性能永磁铁氧体的制备方法 Download PDF

Info

Publication number
CN106830093A
CN106830093A CN201710098401.9A CN201710098401A CN106830093A CN 106830093 A CN106830093 A CN 106830093A CN 201710098401 A CN201710098401 A CN 201710098401A CN 106830093 A CN106830093 A CN 106830093A
Authority
CN
China
Prior art keywords
mixed solution
magnet ferrite
performance permanent
preparation
nucleation
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
CN201710098401.9A
Other languages
English (en)
Inventor
卞文进
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.)
HAIAN COUNTY JULI MAGNETIC MATERIALS CO Ltd
Original Assignee
HAIAN COUNTY JULI MAGNETIC MATERIALS 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 HAIAN COUNTY JULI MAGNETIC MATERIALS CO Ltd filed Critical HAIAN COUNTY JULI MAGNETIC MATERIALS CO Ltd
Priority to CN201710098401.9A priority Critical patent/CN106830093A/zh
Publication of CN106830093A publication Critical patent/CN106830093A/zh
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

本发明提供了一种高性能永磁铁氧体的制备方法，包括下列步骤：1）将硝酸钡和硝酸铁，溶于水中配成混合溶液A；2）将碳酸氢铵和碳酸铵，溶于水中配成混合溶液B；3）将混合溶液A和混合溶液B同步加入旋转液膜成核反应器中，使前驱体氧化铁和氧化钡成核；4）将已成核但未结晶的浆液晶化；5）抽滤后干燥制粉；6）干压磁场成型；7）进行充磁，得到高性能永磁铁氧体。利用本发明的方法制成的永磁铁氧体，具有很高的磁性能，能够用于制造永磁同步电机等要求较高的泵体。

Description

高性能永磁铁氧体的制备方法
技术领域
本发明涉及一种高性能永磁铁氧体的制备方法。
背景技术
永磁铁氧体的成型工艺主要有干压和湿压两种，其中湿压成型的产品性能普遍高于干压成型的产品，但是产品的成型速度慢、合格率低，干压成型的生产优势要高于湿压成型，成型速度快、合格率高，便于生产小尺寸和形状复杂的产品。
目前，干压产品的磁性能普遍不高，一般较好的干压材料剩磁在360-370mT，内禀矫顽力在220KA/m-240KA/m。干压产品主要用于玩具电机，产品附加值不高，不适用于要求较高的泵体类永磁同步小电机。
发明内容
本发明的目的是克服现有技术的不足之处，提供一种高性能永磁铁氧体的制备方法。
本发明的高性能永磁铁氧体的制备方法，包括下列步骤：
1）将硝酸钡和硝酸铁，溶于水中配成混合溶液A；
2）将碳酸氢铵和碳酸铵，溶于水中配成混合溶液B；
3）将混合溶液A和混合溶液B同步加入旋转液膜成核反应器中，使前驱体氧化铁和氧化钡成核；
4）将已成核但未结晶的浆液晶化；
5）抽滤后干燥制粉；
6）干压磁场成型；
7）进行充磁，得到高性能永磁铁氧体。
优选地，
所述的步骤3）中反应时间为5分钟。
利用本发明的方法制成的永磁铁氧体，具有很高的磁性能，能够用于制造永磁同步电机等要求较高的泵体。
具体实施方式
下面结合实施例来对本发明作进一步的详细说明。
实施例1
本发明的高性能永磁铁氧体的制备方法，包括下列步骤：
1）将硝酸钡和硝酸铁，溶于水中配成混合溶液A；
2）将碳酸氢铵和碳酸铵，溶于水中配成混合溶液B；
3）将混合溶液A和混合溶液B同步加入旋转液膜成核反应器中，使前驱体氧化铁和氧化钡成核；
4）将已成核但未结晶的浆液晶化；
5）抽滤后干燥制粉；
6）干压磁场成型；
7）进行充磁，得到高性能永磁铁氧体。
所述的步骤3）中反应时间为5分钟。

Claims (2)

1.高性能永磁铁氧体的制备方法，其特征在于，包括下列步骤：
1）将硝酸钡和硝酸铁，溶于水中配成混合溶液A；
2）将碳酸氢铵和碳酸铵，溶于水中配成混合溶液B；
3）将混合溶液A和混合溶液B同步加入旋转液膜成核反应器中，使前驱体氧化铁和氧化钡成核；
4）将已成核但未结晶的浆液晶化；
5）抽滤后干燥制粉；
6）干压磁场成型；
7）进行充磁，得到高性能永磁铁氧体。
2.根据权利要求1所述的高性能永磁铁氧体的制备方法，其特征在于，所述的步骤3）中反应时间为5分钟。
CN201710098401.9A 2017-02-23 2017-02-23 高性能永磁铁氧体的制备方法 Pending CN106830093A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710098401.9A CN106830093A (zh) 2017-02-23 2017-02-23 高性能永磁铁氧体的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710098401.9A CN106830093A (zh) 2017-02-23 2017-02-23 高性能永磁铁氧体的制备方法

Publications (1)

Publication Number Publication Date
CN106830093A true CN106830093A (zh) 2017-06-13

Family

ID=59134139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710098401.9A Pending CN106830093A (zh) 2017-02-23 2017-02-23 高性能永磁铁氧体的制备方法

Country Status (1)

Country Link
CN (1) CN106830093A (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102976767A (zh) * 2012-12-17 2013-03-20 南通万宝实业有限公司 不损失矫顽力的干法压制锶永磁铁氧体粘结剂选用方法
CN105693228A (zh) * 2016-02-04 2016-06-22 海安县巨力磁材有限责任公司 一种高性能径向异性干压永磁铁氧体的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102976767A (zh) * 2012-12-17 2013-03-20 南通万宝实业有限公司 不损失矫顽力的干法压制锶永磁铁氧体粘结剂选用方法
CN105693228A (zh) * 2016-02-04 2016-06-22 海安县巨力磁材有限责任公司 一种高性能径向异性干压永磁铁氧体的制备方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
何虹等: "干压磁场成型永磁铁氧体的现状及发展", 《第三届全国高性能永磁材料及应用技术研讨会、第十二届全国钕铁硼会议论文集》 *
战可涛等: "热处理温度对BaFe12O19粉体微结构和磁性的影响", 《应用化学》 *

Similar Documents

Publication Publication Date Title
CN106866131A (zh) 一种高性能永磁铁氧体的制备方法
CN103814417A (zh) 强磁性氮化铁颗粒粉末的制造方法、各向异性磁铁、粘结磁铁和压粉磁铁
CN102329128B (zh) 一种钙永磁铁氧体及其制造方法
CN101205137A (zh) 一种干压成型的烧结永磁铁氧体的制造方法
CN110759387A (zh) 一种锰掺杂的碱式碳酸钴的制备方法
CN106001541B (zh) 一种废旧hddr粘结钕铁硼永磁体的回收再利用方法
CN105374543B (zh) 一种粘结钕铁硼‑铁氧体永磁体的制备方法
CN104844188A (zh) 一种电机磁性材料
CN106830093A (zh) 高性能永磁铁氧体的制备方法
CN102173768B (zh) 高性能径向异性干压永磁铁氧体的制造方法
CN105693228A (zh) 一种高性能径向异性干压永磁铁氧体的制备方法
CN113135596A (zh) 共沉淀法制备软磁铁氧体前驱体的方法
CN102531065B (zh) 球形碳酸锰合成方法
CN107200569A (zh) 一种高性能干压永磁铁氧体转子及其制造方法
CN107311636B (zh) 一种高性能永磁铁氧体的制备方法
CN106611655A (zh) 钽电容器圆形钽芯专用成型模具及其使用方法
CN103848454B (zh) 一种纳米级碳酸钡的制备方法
CN101409122A (zh) 高性能永磁铁氧体及其二元生产方法
CN105895360A (zh) 各向异性磁体的制备方法
JP4296379B2 (ja) ボンド磁石用Ｓｍ−Ｆｅ−Ｎ系磁性粉末の製造法及びボンド磁石
CN106887314A (zh) 一种用于滤波器磁心
JP2006002187A (ja) Ｓｍ−Ｆｅ−Ｎ系磁性粒子粉末及び該Ｓｍ−Ｆｅ−Ｎ系磁性粒子粉末を含有するボンド磁石
CN106378385A (zh) 钽电容器方形钽芯专用成型模具及其使用方法
CN113643874A (zh) 一种5g基站环形器专用磁铁
CN202927489U (zh) 铁氧体料浆输送系统

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: 20170613