KR20030067697A - 철기재 희토류자석 원료합금의 제조방법 - Google Patents
철기재 희토류자석 원료합금의 제조방법 Download PDFInfo
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- KR20030067697A KR20030067697A KR10-2003-7007624A KR20037007624A KR20030067697A KR 20030067697 A KR20030067697 A KR 20030067697A KR 20037007624 A KR20037007624 A KR 20037007624A KR 20030067697 A KR20030067697 A KR 20030067697A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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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
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- H—ELECTRICITY
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- 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
- H01F1/0578—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 bonded together
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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
- H01F1/0579—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B with exchange spin coupling between hard and soft nanophases, e.g. nanocomposite spring magnets
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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
- H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
Abstract
Description
합급조성(at%) | 용탕산소농도(ppm) | |||||
Fe | B | R | M | |||
실시예 | 1 | Fe76+Co1 | 18.5 | Nd4.5 | - | 400 |
2 | Fe71+Co3 | 18.5 | Nd4.5 | Cr3 | 500 | |
3 | Fe79.3 | 10.5 | Nd8.2 | Ti2 | 650 | |
4 | Fe70.2+Co3 | 14 | Nd8.8 | Ti4 | 800 | |
5 | Fe76+Co1 | 18.5 | Nd4.5 | - | 2150 | |
6 | Fe71+Co3 | 18.5 | Nd4.5 | Cr3 | 1280 | |
7 | Fe79.3 | 10.5 | Nd8.2 | Ti2 | 1440 | |
8 | Fe70.2+Co3 | 14 | Nd8.8 | Ti4 | 1620 | |
비교예 | 9 | Fe76+Co1 | 18.5 | Nd4.5 | - | 3300 |
10 | Fe71+Co3 | 18.5 | Nd4.5 | Cr3 | 5400 | |
11 | Fe79.3 | 10.5 | Nd8.2 | Ti2 | 3090 | |
12 | Fe70.2+Co3 | 14 | Nd8.8 | Ti4 | 4370 |
동점도(×10-6m2/초) | (BH)max(kJ/m3) | Br(T) | HCJ(kA/m) | ||
실시예 | 1 | 1.6 | 93 | 1.09 | 285 |
2 | 1.2 | 99 | 1.04 | 388 | |
3 | 1.1 | 128 | 0.93 | 640 | |
4 | 1.2 | 110 | 0.80 | 1128 | |
5 | 1.8 | 88 | 1.04 | 272 | |
6 | 1.4 | 91 | 1.02 | 390 | |
7 | 2.2 | 122 | 0.87 | 597 | |
8 | 3.7 | 95 | 0.76 | 1131 | |
비교예 | 9 | 9.3 | 19 | 0.52 | 43 |
10 | 16.8 | 24 | 0.61 | 159 | |
11 | 34 | 11 | 0.55 | 104 | |
12 | 48.1 | 14 | 0.48 | 339 |
슈트각도(α) | 산소농도(ppm) | SC 생성상태 | ||
실시예 | 1234567891011121314151617 | 1010101020202020303030404040505050 | 120129022202500420104015102230340133017202201520214043015302320 | ○△××○○△×○○△△○×△○× |
Claims (10)
- 조성식이 (Fe1-mTm)100-x-y-zQxRyMz로 표현되고, T는 Co 및 Ni로 구성되는 군에서 선택되는 1종 이상의 원소, Q는 B 및 C로 구성되는 군에서 선택되는 1종 이상의 원소, R은 Y(이트륨) 및 희토류금속으로 구성되는 군에서 선택되는 1종 이상의 원소, M은 Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au 및 Pb로 구성되는 군에서 선택되는 1종 이상의 원소이고, 조성비율 x, y, z, 및 m이 각각,10≤x≤30원자 %,2≤y〈10원자 %,0≤z≤10원자 %, 그리고0≤m≤0.5를 만족하는 철기재 희토류 원료합금의 용탕을 준비하는 공정과,상기 합금용탕을 안내수단 상에 공급하고, 상기 안내수단 상에서 냉각롤러를 향하는 상기 합금용탕의 흐름을 형성하고, 이것에 의하여, 상기 합금용탕을 상기 냉각롤러와의 접촉 영역으로 이동시키는 공정과,상기 합금용탕을 상기 냉각롤러에 의하여 급랭하고, 급랭합금을 제조하는 냉각공정을 포함하고,상기 안내수단으로 공급되기 전의 시점에서 상기 합금용탕의 산소농도를 질량비율로 3000ppm 이하로 조절하는 것을 특징으로 하는 철기재 희토류자석 원료합금의 제조방법.
- 제1항에 있어서, 상기 안내수단으로 공급되기 전의 시점에서 상기 합금용탕의 동점도를 5×10-6(m2/초) 이하로 하는 것을 특징으로 하는 철기재 희토류자석 원료합금의 제조방법.
- 제1항에 있어서, 상기 냉각공정은,회전하는 냉각롤러의 표면을 향하는 합금용탕의 적어도 일부의 흐름을 제어하는 것이 가능한 슈트를 상기 안내수단으로 이용하고, 상기 합금용탕을 상기 냉각롤러의 축선방향을 따라서 소정의 폭으로 상기 냉각롤러의 표면에 접촉시키는 공정을 포함하고,상기 슈트는, 상기 냉각롤러의 근방에 배치되고, 상기 냉각롤러의 축선방향을 따라 소정의 폭의 용탕 배출부를 구비하고 있고,상기 냉각롤러와 접촉하는 합금용탕에서 상기 급랭응고합금이 형성되는 철기재 희토류자석 원료합금의 제조방법.
- 제1항에 있어서, 상기 급랭공정은, R2Fe14B형 화합물상을 석출시키는 것을 포함하는 철기재 희토류자석 원료합금의 제조방법.
- 제1항 내지 제4항의 어느 하나에 기재된 철기재의 희토류합금 원료합금의 제조방법에 의하여 제조된 상기 급랭합금에 대하여 결정화 열처리를 수행하고, 적어도 R2Fe14B형 화합물상, α-Fe상, 및 붕화물상을 포함하는 3종류 이상의 결정상을 함유하는 조직을 형성하고, 상기 R2Fe14B형 화합물상의 평균결정입경을 20nm 이상 150nm 이하, 상기 α-Fe상 및 붕화물상의 평균결정입경을 1nm 이상 50nm 이하로 하는 것을 특징으로 하는 영구자석의 제조방법.
- 제5항에 있어서, 상기 결정화 열처리는 상기 급랭합금을 550℃ 이상 850℃ 이하의 온도에서 30초 이상 유지하는 영구자석의 제조방법.
- 제5항 또는 제6항에 있어서, 상기 붕화물상은, 강자성의 철기재 붕화물을 포함하고 있는 영구자석의 제조방법.
- 제7항에 있어서, 상기 철기재 붕화물은, Fe3B 및/또는 Fe23B6를 포함하는 영구자석의 제조방법.
- 제1항 내지 제4항 중 어느 한 항에 기재된 철기재 희토류하석 원료합금의 제조방법에 의하여 제조된, 상기 급랭합금 분말을 이용하여 자석을 제조하는 것을 특징으로 하는 영구자석의 제조방법.
- 제5항 내지 제8항 중 어느 한 항에 기재된 영구자석의 제조방법에 의하여 제조된 영구자석의 분말을 준비하는 공정과,상기 영구자석의 분말을 이용하여 본드자석을 제조하는 공정을 포함하는 본드자석의 제조방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2001-00031484 | 2001-02-07 | ||
JP2001031484 | 2001-02-07 | ||
PCT/JP2002/000902 WO2002067275A1 (en) | 2001-02-07 | 2002-02-04 | Method of making material alloy for iron-based rare earth magnet |
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KR20030067697A true KR20030067697A (ko) | 2003-08-14 |
KR100535946B1 KR100535946B1 (ko) | 2005-12-12 |
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US (1) | US6695929B2 (ko) |
EP (1) | EP1358660B1 (ko) |
KR (1) | KR100535946B1 (ko) |
CN (1) | CN1220989C (ko) |
AT (1) | ATE404982T1 (ko) |
DE (1) | DE60228198D1 (ko) |
WO (1) | WO2002067275A1 (ko) |
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US6790296B2 (en) * | 2000-11-13 | 2004-09-14 | Neomax Co., Ltd. | Nanocomposite magnet and method for producing same |
US7014718B2 (en) * | 2001-09-03 | 2006-03-21 | Showa Denko K.K. | Rare earth magnet alloy ingot, manufacturing method for the same, R-T-B type magnet alloy ingot, R-T-B type magnet, R-T-B type bonded magnet, R-T-B type exchange spring magnet alloy ingot, R-T-B type exchange spring magnet, and R-T-B type exchange spring bonded magnet |
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2002
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- 2002-02-04 CN CNB028000129A patent/CN1220989C/zh not_active Expired - Fee Related
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- 2002-02-04 KR KR10-2003-7007624A patent/KR100535946B1/ko not_active IP Right Cessation
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CN1455937A (zh) | 2003-11-12 |
WO2002067275A1 (en) | 2002-08-29 |
US6695929B2 (en) | 2004-02-24 |
EP1358660B1 (en) | 2008-08-13 |
CN1220989C (zh) | 2005-09-28 |
US20030136468A1 (en) | 2003-07-24 |
ATE404982T1 (de) | 2008-08-15 |
EP1358660A1 (en) | 2003-11-05 |
KR100535946B1 (ko) | 2005-12-12 |
DE60228198D1 (de) | 2008-09-25 |
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