KR950004294A - Manufacturing method of rare earth-transition metal-boron permanent magnet - Google Patents

Manufacturing method of rare earth-transition metal-boron permanent magnet Download PDF

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Publication number
KR950004294A
KR950004294A KR1019930013065A KR930013065A KR950004294A KR 950004294 A KR950004294 A KR 950004294A KR 1019930013065 A KR1019930013065 A KR 1019930013065A KR 930013065 A KR930013065 A KR 930013065A KR 950004294 A KR950004294 A KR 950004294A
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South Korea
Prior art keywords
boron
rare earth
calcium
transition metal
permanent magnet
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KR1019930013065A
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Korean (ko)
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KR950013979B1 (en
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진경식
김현우
이은덕
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박수환
주식회사 럭키금속
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Publication of KR950013979B1 publication Critical patent/KR950013979B1/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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

본 발명은 환원 확산법으로 제조한 희토류-천이금속-붕소계 혼합분말에서 칼슘성분을 간단한 건식방법으로 분리제거 가능한 형태 변환시키는 것에 관한 것으로, 희토류-천이금속-붕소계 영구자석합금을 제조함에 있어서, 희토류 산화물, 천이금속, 붕소 또는 붕소 산화물로 된 혼합분말에 칼슘 또는 수소화 칼슘을 혼합하여 비활성가스 분위기 또는 진공 분위기에서 열처리하여 환원 확산된 목적물을 얻는 제 1 공정과, 상기 공정을 거친 결과물을 진공분위기에 놓고 물을 공급하여 상온 내지 물이 증발하는 온도이상으로 하여 칼슘성분을 칼슘 산화물로 변환시키는 제2공정과, 제 2공정에 이어서 이를 미분쇄하고 칼슘을 제거하는 공정으로 이루어짐을 특징으로 하는 희토류-천이금속-붕소계 영구자석의 제조방법에 관한 기술임.The present invention relates to a form conversion capable of separating and removing a calcium component from a rare earth-transition metal-boron-based mixed powder prepared by a reduction diffusion method by a simple dry method, in preparing a rare earth-transition metal-boron-based permanent magnet alloy, Mixing calcium or calcium hydride to a mixed powder of rare earth oxides, transition metals, boron or boron oxide, and heat treatment in an inert gas atmosphere or a vacuum atmosphere to obtain a reduced-diffusion target product, and the resultant is subjected to vacuum atmosphere. Rare earth, characterized in that it comprises a second step of converting the calcium component into calcium oxide by supplying water to a temperature above room temperature or the evaporation of water, followed by the second step to pulverize it and remove calcium -Technology concerning the manufacturing method of transition metal-boron permanent magnet.

Description

희토류-천이금속-붕소계 영구자석의 제조방법Manufacturing method of rare earth-transition metal-boron permanent magnet

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (8)

희토류-천이금속-붕소계 영구자석 합금을 제조함에 있어서, 희토류 산화물, 천이금속, 붕소 또는 붕소산화물로된 혼합분말에 칼슘 또는 수소화칼슘을 혼합하여 비활성가스 분위기 또는 진공분위기에서 열처리하여 환원확산된 합금분말을 얻는제 1 공정과, 상기 공정을 거친 합금분말을 진공분위기에서 물을 공급하여 상온 내지 물이 증발하는 온도이상으로 하여칼슘성분을 칼슘산화물로 변환시키는 제 2 공정과, 제 2 공정에 이어서 이를 미분쇄하고 칼슘성분을 건식분리제거하는 공정으로 이루어짐을 특징으로 하는 희토류-천이금속-붕소계 연구자석의 제조방법.In the preparation of rare earth-transition metal-boron-based permanent magnet alloys, alloys obtained by mixing calcium or calcium hydride with a mixed powder of rare earth oxides, transition metals, boron or boron oxides and heat-reducing in an inert gas atmosphere or vacuum atmosphere are reduced and diffused. A first step of obtaining powder, a second step of converting the calcium component into calcium oxide by supplying water in a vacuum atmosphere to a temperature above the temperature at which the water evaporates, followed by the second step A method for producing a rare earth-transition metal-boron-based research magnet, characterized in that the fine pulverization is carried out and dry separation removal of calcium components is carried out. 제 1 항에 있어서, 칼슘 혹은 수산화칼슘의 양은 희토류산화물량에 대한 화학비량의 중량으로 2-4배 혼합함을 특징으로하는 희토류-천이금속-붕소계 영구자석의 제조방법.The method of manufacturing a rare earth-transition metal-boron-based permanent magnet according to claim 1, wherein the amount of calcium or calcium hydroxide is mixed 2 to 4 times by weight of the chemical ratio to the amount of rare earth oxides. 제 1 항에 있어서, 희토류 산화물, 천이금속, 붕소 또는 붕소산화물로 된 혼합물을 얇게 깔고 그위에 칼슘 또는 수소화칼슘을 올려놓는 식으로 교대로 적층하고 최후층이 희토류산화물, 천이금속, 붕소 또는 붕소산화로된 혼합분말층으로 이루어지게 함을 특징으로 하는 희토류-천이금속-붕소계 연구자석의 제조방법.The method according to claim 1, wherein the mixture of rare earth oxides, transition metals, boron or boron oxides is laminated in such a manner as to thinly put thereon and calcium or calcium hydride thereon, and the last layer is rare earth oxides, transition metals, boron or boron oxides. Method for producing a rare earth-transition metal-boron-based research magnet, characterized in that consisting of a mixed powder layer. 제 1 항에 있어서, 열처리는 칼슘의 융점부근에서 10~30분 유지한 후 1000~1200℃까지 승온하여 처리함을 특징으로 하는희토류-천이금속-붕소계 영구자석의 제조방법.The method of manufacturing a rare earth-transition metal-boron permanent magnet according to claim 1, wherein the heat treatment is performed by maintaining the temperature near the melting point of calcium for 10 to 30 minutes and then raising the temperature to 1000 to 1200 ° C. 제 1 항에 있어서, 물은 용존산소가 제거된 것임을 특징으로 하는 희토류-천이금속-붕소계 영구자석의 제조방법.The method of claim 1, wherein the water is dissolved oxygen is removed, the process for producing a rare earth-transition metal-boron permanent magnet. 제 1 항 또는 제 5 항에 있어서, 칼슘량에 대한 물의 양을 몰비로 1.5~20배로 함을 특징으로 하는 희토류-천이금속-붕소계 영구자석의 제조방법.The method for producing a rare earth-transition metal-boron permanent magnet according to claim 1 or 5, wherein the amount of water to the amount of calcium is 1.5 to 20 times in molar ratio. 제 1 항에 있어서, 물을 분자상태로 날리어 환원 확산이 끝난 목적물을 고루 침투시키게 함을 특징으로 하는 희토류-천이금속-붕소계 영구자석의 제조방법.The method of manufacturing a rare earth-transition metal-boron-based permanent magnet according to claim 1, wherein water is injected in a molecular state so as to permeate the target product after reduction reduction diffusion. 제 1 항에 있어서, 온도를 올리면서 물과 반응시켜 산화물로 변환시킬때의 분해온도를 상온 내지 580℃온도로 함을 특징으로 하는 희토류-천이금속-붕소계 영구자석의 제조방법.The method of manufacturing a rare earth-transition metal-boron-based permanent magnet according to claim 1, wherein the decomposition temperature at the time of reacting with water and converting it into an oxide while raising the temperature is from room temperature to 580 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930013065A 1993-07-12 1993-07-12 Magnet manufacturing method KR950013979B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100602758B1 (en) * 1999-05-14 2006-07-20 주식회사 유니패스 Mortise Lock Assembly
KR20190061846A (en) * 2017-11-28 2019-06-05 주식회사 엘지화학 Manufacturing method of magnetic powder and magnetic powder

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102100759B1 (en) 2016-11-08 2020-04-14 주식회사 엘지화학 Manufacturing method of metal powder and metal powder
KR102093491B1 (en) 2017-11-28 2020-03-25 주식회사 엘지화학 Manufacturing method of sintered magnet and sintered magnet
KR102083834B1 (en) * 2018-11-02 2020-03-03 한국생산기술연구원 Manufacture method of rare earth-transition metal magnet one-dimension structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100602758B1 (en) * 1999-05-14 2006-07-20 주식회사 유니패스 Mortise Lock Assembly
KR20190061846A (en) * 2017-11-28 2019-06-05 주식회사 엘지화학 Manufacturing method of magnetic powder and magnetic powder

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