KR920012472A - 용강의 탈린방법 - Google Patents

용강의 탈린방법 Download PDF

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Publication number
KR920012472A
KR920012472A KR1019900022629A KR900022629A KR920012472A KR 920012472 A KR920012472 A KR 920012472A KR 1019900022629 A KR1019900022629 A KR 1019900022629A KR 900022629 A KR900022629 A KR 900022629A KR 920012472 A KR920012472 A KR 920012472A
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KR
South Korea
Prior art keywords
molten steel
ladle
blown
converter
tallinn
Prior art date
Application number
KR1019900022629A
Other languages
English (en)
Other versions
KR920008682B1 (ko
Inventor
김기성
손위락
Original Assignee
정명식
포항종합제철주식회사
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 정명식, 포항종합제철주식회사 filed Critical 정명식
Priority to KR1019900022629A priority Critical patent/KR920008682B1/ko
Publication of KR920012472A publication Critical patent/KR920012472A/ko
Application granted granted Critical
Publication of KR920008682B1 publication Critical patent/KR920008682B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

내용 없음

Description

용강의 탈린방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도 : 염기도에 따른 탈린율 변화를 나타내는 그래프, 제2도 : 슬래그중의 FeO에 따른 탈린율 변화를 나타내는 그래프, 제3도 : 산소취입량에 따른 산소실수율 변화를 나타내는 그래프.

Claims (1)

100ppm이하의 인(P)을 함유하는 저린강 제조시 용강을 전로에서 레들로 미탈산상태로 출강할때 래들내에 유입되는 전로 슬래그 중량대비 1.0-1.75의 생석회를 상기 출강류에 투입하는 단계와 상기 래들내에 유입된 용강상부의 슬래그층을 급소가열한 후 상취랜스를 통해 산소를 10N㎥/min이상의 유량으로 용강상부에 2.7분이상 취입함과 동시에 상취랜스를 통해 아르곤가스를 용강내부에 취입하여 교반하는 단계를 포함하여 구성됨을 특징으로 하는 용강의 탈린방법.
※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019900022629A 1990-12-31 1990-12-31 용강의 탈린방법 KR920008682B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022629A KR920008682B1 (ko) 1990-12-31 1990-12-31 용강의 탈린방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022629A KR920008682B1 (ko) 1990-12-31 1990-12-31 용강의 탈린방법

Publications (2)

Publication Number Publication Date
KR920012472A true KR920012472A (ko) 1992-07-27
KR920008682B1 KR920008682B1 (ko) 1992-10-08

Family

ID=19309096

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900022629A KR920008682B1 (ko) 1990-12-31 1990-12-31 용강의 탈린방법

Country Status (1)

Country Link
KR (1) KR920008682B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112094986A (zh) * 2020-10-10 2020-12-18 鞍钢股份有限公司 一种钢包双联生产超低磷钢的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110468249B (zh) * 2019-09-09 2021-07-27 武汉钢铁有限公司 一种能降低出钢时氧含量的重轨钢转炉冶炼方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112094986A (zh) * 2020-10-10 2020-12-18 鞍钢股份有限公司 一种钢包双联生产超低磷钢的方法
CN112094986B (zh) * 2020-10-10 2022-05-13 鞍钢股份有限公司 一种钢包双联生产超低磷钢的方法

Also Published As

Publication number Publication date
KR920008682B1 (ko) 1992-10-08

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