CN107162579A - 永磁铁氧体的生产方法 - Google Patents

永磁铁氧体的生产方法 Download PDF

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CN107162579A
CN107162579A CN201710573536.6A CN201710573536A CN107162579A CN 107162579 A CN107162579 A CN 107162579A CN 201710573536 A CN201710573536 A CN 201710573536A CN 107162579 A CN107162579 A CN 107162579A
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magnet ferrite
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coarse powder
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卞文进
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HAIAN COUNTY JULI MAGNETIC MATERIALS CO Ltd
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HAIAN COUNTY JULI MAGNETIC MATERIALS CO Ltd
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    • 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
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
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  • Organic Chemistry (AREA)
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  • Inorganic Chemistry (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

本发明提供了一种永磁铁氧体的制备方法,包括下列步骤:1)准备铁氧体的材料,料浆放在干燥箱内烘干,分散后过筛,置于箱式电炉中放置一段时间,得到永磁铁氧体预烧料;2)采用制样粉碎机粉碎成粒径3‑5微米的粗粉;3)将粗粉进行分级研磨得到细粉,分级研磨方法如下:先将粗粉投入球磨机,研磨到粒径1‑2微米;再转入砂磨机,磨成粒径0.5‑1微米的细粉;4)磁性材料湿式成型液压机压制样品,得到永磁铁氧体生坯;5)采用箱式电炉烧制,得到永磁铁氧体。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

永磁铁氧体的生产方法
技术领域
本发明涉及一种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,提供一种永磁铁氧体的生产方法。
本发明的永磁铁氧体的生产方法,包括下列步骤:
1)准备铁氧体的材料,料浆放在干燥箱内烘干,分散后过筛,置于箱式电炉中放置一段时间,得到永磁铁氧体预烧料;
2)采用制样粉碎机粉碎成粒径3-5微米的粗粉;
3)将粗粉进行分级研磨得到细粉,分级研磨方法如下:先将粗粉投入球磨机,研磨到粒径1-2微米;再转入砂磨机,磨成粒径0.5-1微米的细粉;
4)磁性材料湿式成型液压机压制样品,得到永磁铁氧体生坯;
5)采用箱式电炉烧制,得到永磁铁氧体。
优选地,
所述的步骤3)中,球磨机采用7-8mm的轴承钢球,料:球:水的重量比为1:10:3。
所述的步骤3)中,砂磨机采用5-6mm的轴承钢球,料:球:水的重量比为1:10:3。
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
本发明的永磁铁氧体的生产方法,包括下列步骤:
1)准备铁氧体的材料,料浆放在干燥箱内烘干,分散后过筛,置于箱式电炉中放置一段时间,得到永磁铁氧体预烧料;
2)采用制样粉碎机粉碎成粒径3微米的粗粉;
3)将粗粉进行分级研磨得到细粉,分级研磨方法如下:先将粗粉投入球磨机,研磨到粒径1微米;再转入砂磨机,磨成粒径0.5微米的细粉;
4)磁性材料湿式成型液压机压制样品,得到永磁铁氧体生坯;
5)采用箱式电炉烧制,得到永磁铁氧体。
所述的步骤3)中,球磨机采用7mm的轴承钢球,料:球:水的重量比为1:10:3。
所述的步骤3)中,砂磨机采用5mm的轴承钢球,料:球:水的重量比为1:10:3。
实施例2
本发明的永磁铁氧体的生产方法,包括下列步骤:
1)准备铁氧体的材料,料浆放在干燥箱内烘干,分散后过筛,置于箱式电炉中放置一段时间,得到永磁铁氧体预烧料;
2)采用制样粉碎机粉碎成粒径5微米的粗粉;
3)将粗粉进行分级研磨得到细粉,分级研磨方法如下:先将粗粉投入球磨机,研磨到粒径2微米;再转入砂磨机,磨成粒径1微米的细粉;
4)磁性材料湿式成型液压机压制样品,得到永磁铁氧体生坯;
5)采用箱式电炉烧制,得到永磁铁氧体。
所述的步骤3)中,球磨机采用8mm的轴承钢球,料:球:水的重量比为1:10:3。
所述的步骤3)中,砂磨机采用6mm的轴承钢球,料:球:水的重量比为1:10:3。

Claims (3)

1.永磁铁氧体的生产方法,其特征在于,包括下列步骤:
1)准备铁氧体的材料,料浆放在干燥箱内烘干,分散后过筛,置于箱式电炉中放置一段时间,得到永磁铁氧体预烧料;
2)采用制样粉碎机粉碎成粒径3-5微米的粗粉;
3)将粗粉进行分级研磨得到细粉,分级研磨方法如下:先将粗粉投入球磨机,研磨到粒径1-2微米;再转入砂磨机,磨成粒径0.5-1微米的细粉;
4)磁性材料湿式成型液压机压制样品,得到永磁铁氧体生坯;
5)采用箱式电炉烧制,得到永磁铁氧体。
2.根据权利要求1所述的永磁铁氧体的生产方法,其特征在于,所述的步骤3)中,球磨机采用7-8mm的轴承钢球,料:球:水的重量比为1:10:3。
3.根据权利要求1所述的永磁铁氧体的生产方法,其特征在于,所述的步骤3)中,砂磨机采用5-6mm的轴承钢球,料:球:水的重量比为1:10:3。
CN201710573536.6A 2017-07-14 2017-07-14 永磁铁氧体的生产方法 Pending CN107162579A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112489916A (zh) * 2020-12-01 2021-03-12 安徽中马磁能科技股份有限公司 一种高性能永磁铁氧体及其制备工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101996722A (zh) * 2009-08-25 2011-03-30 佛山市顺德区江粉霸菱磁材有限公司 一种永磁铁氧体的制备方法
CN105367049A (zh) * 2015-11-23 2016-03-02 中钢天源(马鞍山)通力磁材有限公司 一种永磁铁氧体及其制备方法与应用
CN106336209A (zh) * 2016-08-19 2017-01-18 横店集团东磁股份有限公司 一种永磁铁氧体磁体的生产方法
CN106554197A (zh) * 2016-11-18 2017-04-05 陕西盛迈石油有限公司 通过复合法制备高性能永磁铁氧体的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101996722A (zh) * 2009-08-25 2011-03-30 佛山市顺德区江粉霸菱磁材有限公司 一种永磁铁氧体的制备方法
CN105367049A (zh) * 2015-11-23 2016-03-02 中钢天源(马鞍山)通力磁材有限公司 一种永磁铁氧体及其制备方法与应用
CN106336209A (zh) * 2016-08-19 2017-01-18 横店集团东磁股份有限公司 一种永磁铁氧体磁体的生产方法
CN106554197A (zh) * 2016-11-18 2017-04-05 陕西盛迈石油有限公司 通过复合法制备高性能永磁铁氧体的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112489916A (zh) * 2020-12-01 2021-03-12 安徽中马磁能科技股份有限公司 一种高性能永磁铁氧体及其制备工艺
CN112489916B (zh) * 2020-12-01 2024-03-29 安徽中马磁能科技股份有限公司 一种高性能永磁铁氧体及其制备工艺

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