KR970051504A - Ultrafine Granular Composite Permanent Magnet Composition and Method of Manufacturing Permanent Magnet Material Using Its Base Material - Google Patents

Ultrafine Granular Composite Permanent Magnet Composition and Method of Manufacturing Permanent Magnet Material Using Its Base Material Download PDF

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Publication number
KR970051504A
KR970051504A KR1019950066229A KR19950066229A KR970051504A KR 970051504 A KR970051504 A KR 970051504A KR 1019950066229 A KR1019950066229 A KR 1019950066229A KR 19950066229 A KR19950066229 A KR 19950066229A KR 970051504 A KR970051504 A KR 970051504A
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South Korea
Prior art keywords
permanent magnet
composition
base material
granular composite
magnetic material
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KR1019950066229A
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Korean (ko)
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KR100213333B1 (en
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박언병
양충진
손영근
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Priority to KR1019950066229A priority Critical patent/KR100213333B1/en
Publication of KR970051504A publication Critical patent/KR970051504A/en
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Publication of KR100213333B1 publication Critical patent/KR100213333B1/en

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    • 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
    • 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • 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

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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

(단, x, y, z, w는 원자 %로서 0≤x≤1, 0≤y≤3, 0≤z≤1, 0≤w≤3 범위이다)의 조성을 갖고 강자성상인 Nd2Fe14B와 약자성상인 Fe3B 및 α-Fe가 혼재되어 있는 복합상 영구자성 조성물이 제공된다. (Where x, y, z, w are atomic% in the range of 0≤x≤1, 0≤y≤3, 0≤z≤1, 0≤w≤3) and are ferromagnetic phase Nd 2 Fe 14 B There is provided a composite permanent magnet composition in which Fe 3 B and α-Fe which are weak magnetic phases are mixed.

이같은 조성의 자성체는 잔류자화력이 극대화되고, 보자력 및 큐리온도를 개선시킨 회토류-철계 영구자석을 제공할 수 있다.The magnetic material of such a composition can provide the rare earth-iron permanent magnet with the maximum residual magnetization force and improved coercive force and Curie temperature.

상기 조성을 갖는 것을 모재로 하여 영구자석 재료를 제조하는 방법 또한 제공된다.There is also provided a method of producing a permanent magnet material having a composition as the base material.

Description

초미세립 복합상 영구자석 조성물 및 이를 모재로 한 영구자석 재료 제조방법Ultrafine Granular Composite Permanent Magnet Composition and Method of Manufacturing Permanent Magnet Material Using Its Base Material

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (6)

의 조성을 갖고, 강자성상인 Nd2Fe14B와 약자성인 Fe3B 및 a-Fe가 서로 공존 복합화 되어 있는 니오디움-철(코발트, 해프늄, 갈륨)-보론계 영구자석 조성물. 단, 상기 식에서 x, y, z, w는 원자 %로서 0≤x≤1, 0≤y≤3, 0≤z≤1, 0≤w≤3 범위이다. Nidium-iron (cobalt, hafnium, gallium) -boron-based permanent magnet composition having a composition of Nd 2 Fe 14 B and a ferromagnetic phase of Fe 3 B and a-Fe coexist with each other. Where x, y, z and w are in the range of 0? X? 1, 0? Y? 3, 0? Z? 제1항에 있어서, 상기 강자성상인 Nd2Fe14B의 결정립 크기는 10-30nm임을 특징으로 하는 조성물.The composition of claim 1, wherein the grain size of Nd 2 Fe 14 B, the ferromagnetic phase, is 10-30 nm. 제1항 또는 제2항 중 어느 한 항에 있어서, 상기 Nd2Fe14B와 Fe3B는 Nd2Fe14B : Fe3B=(20-30체적%) : (70-80체적%) 부피비율로 혼재되어 있음을 특징으로 하는 조성물.The method according to claim 1 or 2, wherein Nd 2 Fe 14 B and Fe 3 B is Nd 2 Fe 14 B: Fe 3 B = (20-30% by volume): (70-80% by volume) A composition, characterized in that it is mixed in a volume ratio. (단, 여기서 x, y, z, w는 원자 %로서 0≤x≤1, 0≤y≤3, 0≤z≤1, 0≤w≤3 범위이다) 조성을 갖는 모재로 균일하게 용해시킨 다음, 급냉회전체 표면에서 105~106℃/초의 냉각속도로 급냉시켜 비정질 자성체를 형성시키고, 그 비정질 자성체를 600~730℃ 온도에서 3-30분간 열처리함을 포함하는 영구자석 재료 제조방법. Where x, y, z, w are atomic%, in the range 0 ≦ x ≦ 1, 0 ≦ y ≦ 3, 0 ≦ z ≦ 1, 0 ≦ w ≦ 3. , Quenching at a cooling rate of 10 5 ~ 10 6 ℃ / sec on the surface of the quenching rotor to form an amorphous magnetic material, and heat-treating the amorphous magnetic material at a temperature of 600 ~ 730 ℃ 3-30 minutes. 제4항에 있어서, 상기 급냉 회전체의 표면속도는 35-50m/초인 것을 특징으로 하는 방법.5. The method of claim 4, wherein the surface speed of the quench rotor is 35-50 m / sec. 제4항에 있어서, 상기 비정질 자성체를 620-710℃ 온도에서 5-20분간 열처리함을 특징으로 하는 방법.The method of claim 4, wherein the amorphous magnetic material is heat-treated at a temperature of 620-710 ° C. for 5-20 minutes. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950066229A 1995-12-29 1995-12-29 Nd-fe-b hyperfine grain permanent magnet composition and method for manufacturing therewith KR100213333B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100642328B1 (en) * 1998-12-07 2006-11-03 가부시키가이샤 네오맥스 raw material alloy for nanocomposite magnet, raw material alloy powder for the nanocomposite magnet, method for preparing the raw material alloy, method for preparing the nanocomposite magnet powder, and method for producing the nanocomposite magnet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001332410A (en) * 2000-05-22 2001-11-30 Seiko Epson Corp Magnet powder, its manufacturing method, and bond magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100642328B1 (en) * 1998-12-07 2006-11-03 가부시키가이샤 네오맥스 raw material alloy for nanocomposite magnet, raw material alloy powder for the nanocomposite magnet, method for preparing the raw material alloy, method for preparing the nanocomposite magnet powder, and method for producing the nanocomposite magnet

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