KR102659637B1 - 희토류 자석의 제조를 위한 출발 재료의 제조를 위한 방법 및 설비 - Google Patents
희토류 자석의 제조를 위한 출발 재료의 제조를 위한 방법 및 설비 Download PDFInfo
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 93
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007858 starting material Substances 0.000 title claims description 41
- 239000000843 powder Substances 0.000 claims abstract description 82
- 239000002245 particle Substances 0.000 claims abstract description 79
- 230000005291 magnetic effect Effects 0.000 claims abstract description 54
- 239000013067 intermediate product Substances 0.000 claims abstract description 38
- 238000000227 grinding Methods 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000000047 product Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 239000012254 powdered material Substances 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 description 32
- 239000007789 gas Substances 0.000 description 15
- 238000005498 polishing Methods 0.000 description 10
- 229910001172 neodymium magnet Inorganic materials 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000004626 scanning electron microscopy Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910000583 Nd alloy Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 1은 통상적으로 제조된 희토류 자성 분말의 주사 전자 현미경 기록을 도시한다.
도 2는 개략적으로 도시된, 통상적으로 제조된 희토류 자성 분말의 개별 입자를 예시적으로 보여준다.
도 3은 희토류 자석의 제조를 위한 최적화된 출발 재료의 주사 전자 현미경 기록을 도시한다.
도 4는 개략적으로 도시된, 최적화된 출발 재료의 개별 입자를 예시적으로 보여준다.
도 5는 적어도 하나의 자성 또는 자화성 원료를 각각 기재로 하는 희토류 자석의 제작을 위한 최적화된 희토류 자성 분말의 제조를 위한 개별 방법 단계를 보여준다.
도 6은 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료의 제조를 위한 설비를 개략적으로 보여준다.
동일하거나 동일한 효과를 갖는 본 발명의 요소에 대해 동일한 도면부호가 사용된다. 시각적으로 더 잘 나타내기 위해, 각각의 도면의 설명을 위해 필요한 도면부호만이 개별 도면에 추가로 도시된다. 도시된 실시양태는 본 발명에 따른 장치 또는 본 발명에 따른 방법이 어떻게 구현될 수 있는지를 보여주는 예를 나타낼 뿐이며, 결정적인 제한을 나타내는 것은 아니다.
2 분말 입자
3 모서리
4 가장자리/파단 가장자리
5 통상적인 희토류 자석
10 최적화된 희토류 자성 분말
12 분말 입자
12a 약간 둥글게 된 및/또는 둥글게 깍인 분말 입자
12b 둥글게 된 분말 입자
13 둥글게 깍인 모서리
14 둥글게 깍인 가장자리
19 최적화된 희토류 자석
20 추가로 최적화된 희토류 자석
25 설비
30 분쇄 장비
31 밀
32 유동층 제트 밀
40 마모 장치
50 분리 장치
51 분급기
AM1, AM2 출발 재료
F 매우 미세한 마모 부분
M 자성 또는 자화성 원료 각각
S 보호 기체
ZP 중간 생성물
Claims (13)
- 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법이며,
- 적어도 하나의 자성 또는 자화성 원료(M)를 각각 제공하는 단계;
- 제공된 적어도 하나의 자성 또는 자화성 원료(M)를 각각 분쇄하여, 분말상 중간 생성물(ZP)을 적어도 하나의 자성 또는 자화성 원료(M)로부터 각각 생성하는 단계로서, 분말상 중간 생성물(ZP)의 분말 입자(2)는 모서리(3) 및 가장자리(4) 중 적어도 하나를 갖는, 단계;
- 분말 입자(2)의 상호 마찰에 의해 분말 입자(2)의 모서리(3) 및 가장자리(4) 중 적어도 하나를 서로 마모하여, 모따기된 분말 입자(12)을 구비한 분말상 생성물(10)을 생성하는 마모 단계; 및
- 상기 마모 단계 후에 분말상 생성물(10)을 2 ㎛ 내지 10 ㎛로 분급하여, 모따기로 인해 생성된 미세한 연마 부분(F)을 제거하고 분급 후의 모따기된 분말 입자(12)를 포함하는 분획을 희토류 자석(20)의 제작을 위한 출발 재료(AM2)로서 사용하는 단계
를 포함하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법. - 제1항에 있어서, 분말상 중간 생성물(ZP)의 분말 입자(2)의 모따기를 위해, 모서리(3) 및 가장자리(4)를 마모하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제2항에 있어서, 마모 장치(40)를 사용하여 마모 공정을 수행하고, 마모 공정에서 분말상 중간 생성물(ZP)의 분말 입자(2)를 움직여 줌으로써 분말상 중간 생성물(ZP)의 분말 입자(2)들이 서로 마찰되도록 하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제2항에 있어서, 마모 공정을 보호 기체(S)를 사용하여 수행하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제3항에 있어서, 마모 공정을 보호 기체(S)를 사용하여 수행하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제3항에 있어서, 마모 장치(40)가 수용 챔버를 포함하고, 수용 챔버 내에 분말상 중간 생성물(ZP)의 분말 입자(2)가 충전되고 수용 챔버 내에서 분말 입자들이 움직여서 서로 마찰되고, 수용 챔버의 50% 내지 99%가 분말상 중간 생성물(ZP)로 충전되는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제6항에 있어서, 수용 챔버 내의 잔여 공간이 보호 기체(S)에 의해 충전되는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 분말상 중간 생성물(ZP)의 분말 입자(2)의 모따기를 0.25 bar 내지 1.00 bar의 기체 압력에서 수행하는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제1항에 있어서, 분말상 생성물(10)에 자기장을 작용시킴으로써 제조된 제1 희토류 자석(19)이 분말상 중간 생성물(ZP)에 자기장을 작용시킴으로써 제조된 희토류 자석(5)에 비해, 증가된 자성 값 또는 더 높은 자기 에너지 밀도를 각각 갖는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제1항에 있어서, 분급 후의 모따기된 분말 입자(12)를 포함하는 분획에 자기장을 작용시킴으로써 제조된 희토류 자석(20)이 분말상 중간 생성물(ZP)에 자기장을 작용시킴으로써 제조된 희토류 자석(5)에 비해 증가된 자성 값 또는 더 높은 자기 에너지 밀도를 각각 갖는, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)의 제조 방법.
- 제1항에 따른 방법에 따라, 희토류 자석의 제작을 위해 제공되는 분말상 출발 재료(AM2)를 제조하기 위한, 설비(25)이며,
- 제공된 자성 또는 자화성 원료(M)를 각각 분쇄함으로써 분말상 중간 생성물(ZP)을 제조하기 위한 적어도 하나의 분쇄 장비(30)로서, 분말상 중간 생성물(ZP)은 모서리(3) 및 가장자리(4) 중 적어도 하나를 포함하는 분말 입자(2)를 포함하는, 적어도 하나의 분쇄 장비; 및
- 분말 입자(2)의 상호 마찰에 의해 분말 입자(2)의 모서리(3) 및 가장자리(4) 중 적어도 하나를 서로 마모하여, 분말상 중간 생성물(ZP)의 분말 입자(2)를 모따기하도록 구현된 마모 장치(40)를 포함하고,
- 상기 분말 입자(2)의 모서리(3) 및 가장자리(4) 중 적어도 하나의 마모 후에, 회전하여 분말 입자(2)로부터 모따기로 인해 생성된 미세한 연마 부분(F)을 제거하고, 분말 입자(2)를 2 ㎛ 내지 10 ㎛로 분급하도록 구성된 분리 장치(50)를 더 포함하고,
굵은 분말 분획은 마모 장치(40)에서 형성된 모따기된 분말 입자(12)를 포함함으로써, 희토류 자석(20)의 제조를 위한 출발 재료(AM2)를 생성할 수 있는, 설비(25). - 제11항에 있어서, 마모 장치(40)가 0.25 bar 내지 1.00 bar의 기체 압력에서 작동될 수 있는, 설비(25).
- 삭제
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