KR960021305A - 수분사 철분의 제조방법 - Google Patents

수분사 철분의 제조방법 Download PDF

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Publication number
KR960021305A
KR960021305A KR1019940035206A KR19940035206A KR960021305A KR 960021305 A KR960021305 A KR 960021305A KR 1019940035206 A KR1019940035206 A KR 1019940035206A KR 19940035206 A KR19940035206 A KR 19940035206A KR 960021305 A KR960021305 A KR 960021305A
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KR
South Korea
Prior art keywords
iron
reducing
producing
present
gas atmosphere
Prior art date
Application number
KR1019940035206A
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English (en)
Other versions
KR970002097B1 (ko
Inventor
마봉열
윤태식
김경협
안상호
Original Assignee
김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김만제, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940035206A priority Critical patent/KR970002097B1/ko
Publication of KR960021305A publication Critical patent/KR960021305A/ko
Application granted granted Critical
Publication of KR970002097B1 publication Critical patent/KR970002097B1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

본 발명은 금속 분말야금 원료중 수분사에 의해 제조된 철분의 제조시 적정량의 탄소를 철분에 함유하고 이를 적절히 환원처리 하므로서, 철분의 산화피막 및 그 내부의 내재하고 있는 복합 산화개재물을 효과적으로 제거할 뿐만 아니라 이후의 파쇄공정도 용이하게 행할 수 있는 수분사 철분의 제조방법을 제공하고자 하는데, 그 목적이 있다.
상기 목적을 달성하기 위해 본 발명은 용융철을 수분사 한 후 환원처리하여 철분을 제조하는 방법에 있어서, 상기 용융철내의 탄소 함량을 0.1~0.2중량%로 조절하고, 상기 용융철을 통상의 방법으로 수분사 한 다음, 850~1200℃의 온도에서 불활성 가스분위기하에서 1차 환원처리 후, 계속하여 환원성 가스 분위기하에서 2차 환원처리함을 포함하여 구성되는 수분사 철분의 제조방법에 관한 것을 그 요지로 한다.

Description

수분사 철분의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (1)

  1. 용융철을 수분사 한 후 환원처리하여 철분을 제조하는 방법에 있어서, 상기 용융철내의 탄소 함량을 0.1~0.2중량%로 조절하고, 상기 용융철을 통상의 방법으로 수분사 한 다음, 850~1200℃의 온도에서 불활성 가스 분위기하에서 1차 환원처리 후 계속하여 환원성 가스 분위기하에서 2차 환원처리함을 포함하여 구성됨을 특징으로 하는 수분사 철분의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940035206A 1994-12-20 1994-12-20 수분사 철분의 제조방법 KR970002097B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940035206A KR970002097B1 (ko) 1994-12-20 1994-12-20 수분사 철분의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940035206A KR970002097B1 (ko) 1994-12-20 1994-12-20 수분사 철분의 제조방법

Publications (2)

Publication Number Publication Date
KR960021305A true KR960021305A (ko) 1996-07-18
KR970002097B1 KR970002097B1 (ko) 1997-02-22

Family

ID=19402321

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940035206A KR970002097B1 (ko) 1994-12-20 1994-12-20 수분사 철분의 제조방법

Country Status (1)

Country Link
KR (1) KR970002097B1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012036488A2 (ko) * 2010-09-15 2012-03-22 주식회사 포스코 철계 분말의 제조방법
KR101309726B1 (ko) * 2011-12-05 2013-09-17 주식회사 포스코 철계 분말의 제조방법
KR101448595B1 (ko) * 2012-10-10 2014-10-13 주식회사 포스코 철계 분말의 제조방법
KR101505250B1 (ko) * 2012-11-29 2015-03-23 현대제철 주식회사 부분합금 철 분말 및 그 제조 방법
CN108080649B (zh) * 2017-12-14 2021-08-03 钢研晟华科技股份有限公司 一种低温碳氢双联还原制备超细铁粉的方法

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Publication number Publication date
KR970002097B1 (ko) 1997-02-22

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