CN108109798A - 变压器用永磁体的制备方法 - Google Patents

变压器用永磁体的制备方法 Download PDF

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CN108109798A
CN108109798A CN201711251617.0A CN201711251617A CN108109798A CN 108109798 A CN108109798 A CN 108109798A CN 201711251617 A CN201711251617 A CN 201711251617A CN 108109798 A CN108109798 A CN 108109798A
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程桂平
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    • 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
    • H01F1/04Magnets 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 metals or alloys
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/02Making ferrous alloys by powder metallurgy
    • C22C33/0257Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus 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
    • H01F41/02Apparatus 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
    • H01F41/0253Apparatus 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus 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
    • H01F41/02Apparatus 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
    • H01F41/0253Apparatus 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
    • H01F41/0266Moulding; Pressing

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  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:11份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。

Description

变压器用永磁体的制备方法
技术领域
变压器用永磁体的制备方法。
背景技术
现有技术中,变压器用永磁体主要是钕铁硼类永磁体,普遍存在磁性不足的问题。
发明内容
本发明提供一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:11份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
采用本发明的工艺和设备明显提高磁体的磁性能和耐腐蚀性能,是非常有发展的工艺和设备技术。
具体实施方式
实施例1
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:11份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例2
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:12份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例3
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:13份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例4
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:14份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例5
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:15份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例6
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:16份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例7
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:17份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例8
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:18份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例9
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:19份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
实施例10
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:20份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
对比例
一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:11份钕,50份铁,3份硼,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
对比试验结果
实施例 实施例相比对比例在磁性能上的提升
1 5%
2 4%
3 6%
4 4%
5 6%
6 5%
7 4%
8 6%
9 4%
10 6%

Claims (2)

1.一种变压器用永磁体的制备方法,步骤如下:称取重量份数的如下粉末:11份钕,50份铁,3份硼,1份铑,1份钯,1份银,1份铈,2份镨,3份钷,1份钐,2份铕,3份钆,1份镝,2份钬,混合均匀得到混合粉末,将混合粉末放在真空干燥箱中干燥后,在氩气的保护下,利用高能球磨机将混合粉末进行充分球磨和混合,然后在20MPa压强下,将球磨后的混合粉末在550℃下热压烧结30min后随炉冷却,即得到变压器用永磁体。
2.采用本发明的工艺和设备明显提高磁体的磁性能和耐腐蚀性能,是非常有发展的工艺和设备技术。
CN201711251617.0A 2017-12-01 2017-12-01 变压器用永磁体的制备方法 Withdrawn CN108109798A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103824668A (zh) * 2014-01-17 2014-05-28 浙江东阳东磁有限公司 一种低重稀土高矫顽力烧结钕铁硼磁体及其制备方法
CN106935392A (zh) * 2017-03-10 2017-07-07 解伟 热压纳米晶各向异性磁体
CN107195414A (zh) * 2017-05-27 2017-09-22 浙江大学 一种(Nd,Y)‑Fe‑B稀土永磁体及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103824668A (zh) * 2014-01-17 2014-05-28 浙江东阳东磁有限公司 一种低重稀土高矫顽力烧结钕铁硼磁体及其制备方法
CN106935392A (zh) * 2017-03-10 2017-07-07 解伟 热压纳米晶各向异性磁体
CN107195414A (zh) * 2017-05-27 2017-09-22 浙江大学 一种(Nd,Y)‑Fe‑B稀土永磁体及其制备方法

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