KR890010219A - 용강의 흡질방지방법 - Google Patents

용강의 흡질방지방법 Download PDF

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Publication number
KR890010219A
KR890010219A KR1019870015106A KR870015106A KR890010219A KR 890010219 A KR890010219 A KR 890010219A KR 1019870015106 A KR1019870015106 A KR 1019870015106A KR 870015106 A KR870015106 A KR 870015106A KR 890010219 A KR890010219 A KR 890010219A
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KR
South Korea
Prior art keywords
prevention method
molten steel
graph showing
deoxidizer
treatment
Prior art date
Application number
KR1019870015106A
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English (en)
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KR900007443B1 (ko
Inventor
손재웅
Original Assignee
정명식
포항종합제철 주식회사
백태준
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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Application filed by 정명식, 포항종합제철 주식회사, 백태준, 재단법인 산업과학기술연구소 filed Critical 정명식
Priority to KR1019870015106A priority Critical patent/KR900007443B1/ko
Publication of KR890010219A publication Critical patent/KR890010219A/ko
Application granted granted Critical
Publication of KR900007443B1 publication Critical patent/KR900007443B1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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

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

Abstract

내용 없음

Description

용강의 흡질방지방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 전로출강산소함량에 따른 용강중 질소증가량을 나타내는 그래프.
제2도는 래들 슬래그조성중 Ti02 함량과 튜입 40분후의 질소증가량 관계를 나타내는 그래프.
제3도는 RH 처리시 Mn 합금칠 및 Al 탈산제 투입방법에 따른 질소증가량을 나타내는 그래프.
제4도는 전로출강이후 연속조주시의 소강질소 함량을 나타내는 그래프.
제5도는 제품청정도를 나타내는 그래프.
제6도는 Ti02를 함유하는 래들 슬래그 두께별 질소 증가량 및 Al탈산제 실수율 관계를 나타낸 그래프이다.

Claims (1)

  1. 전로출강시 강증의 산소 : 0.04wt％ 이상, 래들슬리그중의 Ti02 : 10-40wt％ 및 슬래그두께 : 80-120mm로 조절하는 제 1공정과 RH처리시 Mn합금철 전량을 진공 탈탄기에 투입하고 Al탈산제를 탈탄후에 2회 이상 투입하는 제 2공장으로 구성됨을 특징으로 하는 흡질방지방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870015106A 1987-12-28 1987-12-28 용강의 흡질방지방법 KR900007443B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870015106A KR900007443B1 (ko) 1987-12-28 1987-12-28 용강의 흡질방지방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870015106A KR900007443B1 (ko) 1987-12-28 1987-12-28 용강의 흡질방지방법

Publications (2)

Publication Number Publication Date
KR890010219A true KR890010219A (ko) 1989-08-07
KR900007443B1 KR900007443B1 (ko) 1990-10-10

Family

ID=19267465

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015106A KR900007443B1 (ko) 1987-12-28 1987-12-28 용강의 흡질방지방법

Country Status (1)

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KR (1) KR900007443B1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100929468B1 (ko) * 2008-03-28 2009-12-02 현대제철 주식회사 용강의 정련 방법 및 이를 이용한 고망간 저탄소강의제조방법

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Publication number Publication date
KR900007443B1 (ko) 1990-10-10

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