KR970051499A - 자장중 열처리에 의한 초미세립 복합상 영구자석 제조방법 - Google Patents
자장중 열처리에 의한 초미세립 복합상 영구자석 제조방법 Download PDFInfo
- Publication number
- KR970051499A KR970051499A KR1019950068462A KR19950068462A KR970051499A KR 970051499 A KR970051499 A KR 970051499A KR 1019950068462 A KR1019950068462 A KR 1019950068462A KR 19950068462 A KR19950068462 A KR 19950068462A KR 970051499 A KR970051499 A KR 970051499A
- Authority
- KR
- South Korea
- Prior art keywords
- heat treatment
- magnetic field
- composite
- permanent magnet
- manufacturing
- Prior art date
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Classifications
-
- 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
- H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
Abstract
본 발명에서는 강자성상인 Nd2Fe14B와 약자성상인 Fe3B및 α-Fe이 혼재하여 있는 니오디움(Nd)-철(Fe)-보론(B)계 영구자석을 제조시 자장중에서 열처리하여 결정립을 일정방향으로 성장, 배향시키는 영구자석 제조방법이다.
기존의 영구자석재료인 강자성상 Nd2Fe14B의 난점이었던 잔류 자속밀도를 약자성상인 Fe3B및 α-Fe을 자장중 열처리를 통해 공존 복합화하여 잔류자속밀도뿐 아니라 보자력 및 큐리온도까지 개선시킬 수 있다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (1)
- Nd3+XFe78.5-x-y-z-wCoy Hf1-zGazB18.5±w(단 X,y,z,w는 각각 원자 %이며 0≤x≤1 0≤y≤3, 0≤z≤1, 0≤w≤3 범위이다.)조성을 갖는 모재를 균일하게 용해시킨 다음, 급냉시켜 비정질 자성체 리본을 형성시킨 다음, 그 형성된 비정질 자성체를 열처림함을 포함하는 영구자석 제조방법에 있어서, 상기 열처리는 상기 비정질 자성체 리본의 길이 방향에 수평되게 자장을 1-5K Oe 범위로 인가하는 가운데 수행됨을 특징으로 하는 초미세립복합상 영구자석 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950068462A KR100241026B1 (ko) | 1995-12-30 | 1995-12-30 | 자장중 열처리에 의한 초미세립 복합상 영구자석 제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950068462A KR100241026B1 (ko) | 1995-12-30 | 1995-12-30 | 자장중 열처리에 의한 초미세립 복합상 영구자석 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970051499A true KR970051499A (ko) | 1997-07-29 |
| KR100241026B1 KR100241026B1 (ko) | 2000-02-01 |
Family
ID=19448083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950068462A KR100241026B1 (ko) | 1995-12-30 | 1995-12-30 | 자장중 열처리에 의한 초미세립 복합상 영구자석 제조방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100241026B1 (ko) |
-
1995
- 1995-12-30 KR KR1019950068462A patent/KR100241026B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100241026B1 (ko) | 2000-02-01 |
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