KR980005086A - Nd-Fe-B계 영구자석 제조장치 및 그 제조방법 - Google Patents

Nd-Fe-B계 영구자석 제조장치 및 그 제조방법 Download PDF

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KR980005086A
KR980005086A KR1019960023569A KR19960023569A KR980005086A KR 980005086 A KR980005086 A KR 980005086A KR 1019960023569 A KR1019960023569 A KR 1019960023569A KR 19960023569 A KR19960023569 A KR 19960023569A KR 980005086 A KR980005086 A KR 980005086A
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Prior art keywords
permanent magnet
cylindrical tube
cylindrical
mold
quench ribbon
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KR1019960023569A
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English (en)
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KR100186974B1 (ko
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송치용
양정필
안길수
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오상수
만도기계 주식회사
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    • 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
    • H01F1/0571—Alloys 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
    • H01F1/0575—Alloys 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
    • H01F1/0576—Alloys 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 pressed, e.g. hot working
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

본 발명은 Nd-Fe-B계 영구자석 제조방법 및 그 제조장치를 개시한다. 본 발명은 Nd-Fe-B계 급냉리본 파우더를 냉간 압축하여 형성한 Nd-Fe-B계 급냉리본 성형체를 상측이 막힌 원통형 튜브내에 삽입하는 단계와, 상기 Nd-Fe-B계 급냉리본 성형체가 삽입된 원통형 튜브를 금형내부에 삽입한 후 700∼800℃로 가열하는 단계와, 상기 단계에서 가열된 원통형 튜브의 상측 중앙부를 원통형 코어치로 가압하여 이방성 링형 영구자석을 제조하는 단계를 포함하는 Nd-Fe-B계 영구자석 제조방법 및 제조장치를 제공하는데 그 특징이 있다. 따라서 장치의 구조가 간단하고, 제조 공정수를 줄일 수 있고, 자석의 보자력 특성을 향상시킬 수 있게 된다.

Description

Nd-Fe-B계 영구자석 제조장치 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 Nd-Fe-B계 영구자석 제조장치를 개략적으로 도시한 단면도.

Claims (4)

  1. Nd-Fe-B계 급냉리본 파우더를 냉간 압축하여 형성한 Nd-Fe-B계 급냉리본 성형체를 상측이 막힌 원통형 튜브내에 삽입하는 단계와, 상기 Nd-Fe-B계 급냉리본 성형체가 삽입된 원통형 튜브를 금형내부에 삽입한 후 700∼800℃로 가열하는 단계와, 상기 단계에서 가열된 원통형 튜브의 상측 중앙부를 원통형 코오펀치로 가압하여 이방성 링형 영구자석을 제조하는 단계를 포함하는 Nd-Fe-B계 영구자석 제조방법.
  2. 제1항에 있어서, 상기 원통형 튜브는 Cu, Fe계 금속재료로 이루어진 것을 특징으로 하는 Nd-Fe-B계 영구자석 제조방법.
  3. 원통형 중공부를 가지는 금형과, 상기 금형의 하측에 위치된는 하부펀치와, 상기 금형의 중공부에 삽입되며 내부에 Nd-Fe-B계 급냉리본 성형체가 삽입되고 상측이 막힌 원통형 튜브와, 상기 금형의 상측에 위치되며 상기 원통형 튜브의 상측 중앙부를 가압하는 원통형 코어펀치를 포함하는 Nd-Fe-B계 영구자석 제조장치
  4. 제3항에 있어서, 상기 원통형 튜브는 Cu, Fe계 금속재료로 이루어진 것을 특징으로 하는 Nd-Fe-B계 영구자석 제조장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960023569A 1996-06-25 1996-06-25 Nd-fe-b계 영구자석 제조장치 및 그 제조방법 KR100186974B1 (ko)

Priority Applications (1)

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KR1019960023569A KR100186974B1 (ko) 1996-06-25 1996-06-25 Nd-fe-b계 영구자석 제조장치 및 그 제조방법

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Application Number Priority Date Filing Date Title
KR1019960023569A KR100186974B1 (ko) 1996-06-25 1996-06-25 Nd-fe-b계 영구자석 제조장치 및 그 제조방법

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KR980005086A true KR980005086A (ko) 1998-03-30
KR100186974B1 KR100186974B1 (ko) 1999-05-15

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