KR890010224A - Additives for absorbing inclusions in molten steel - Google Patents

Additives for absorbing inclusions in molten steel Download PDF

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Publication number
KR890010224A
KR890010224A KR1019870015089A KR870015089A KR890010224A KR 890010224 A KR890010224 A KR 890010224A KR 1019870015089 A KR1019870015089 A KR 1019870015089A KR 870015089 A KR870015089 A KR 870015089A KR 890010224 A KR890010224 A KR 890010224A
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KR
South Korea
Prior art keywords
molten steel
additives
weight
absorbing inclusions
inclusions
Prior art date
Application number
KR1019870015089A
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Korean (ko)
Other versions
KR900007442B1 (en
Inventor
추동균
신영길
이인렬
최주
Original Assignee
정명식
포항종합제철 주식회사
박태준
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 정명식, 포항종합제철 주식회사, 박태준, 재단법인 산업과학기술연구소 filed Critical 정명식
Priority to KR1019870015089A priority Critical patent/KR900007442B1/en
Publication of KR890010224A publication Critical patent/KR890010224A/en
Application granted granted Critical
Publication of KR900007442B1 publication Critical patent/KR900007442B1/en

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Classifications

    • 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)
  • Continuous Casting (AREA)

Abstract

내용 없음No content

Description

용강의 개재물 흡수용 첨가제Additives for absorbing inclusions in molten steel

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

제1도는 본 발명제, 종래제 및 비교제에 대한 시간에 따른 알루미나 흡수량을 나타낸 그래프.1 is a graph showing the amount of alumina absorption over time for the present invention, a conventional agent and a comparative agent.

제2도는 본 발명제, 종래제 및 비교제에 대한 마그네시아 케스타블의 침식율을 나타낸 그래프.2 is a graph showing the erosion rate of magnesia castable for the present invention, conventional and comparative agents.

제3도는 본 발명제, 종래제 및 비교제에 대한 시간에 따른 용강내의 가탄량을 나타낸 그래프.3 is a graph showing the amount of charcoal in molten steel over time for the present invention, the conventional agent and the comparative agent.

제4도는 본 발명제의 탄소량에 따른 안식각의 변화를 나타낸 그래프.4 is a graph showing a change in the angle of repose according to the amount of carbon of the present invention.

Claims (1)

CaO : 30-50중량％, MgO : 10-35중량％, CaF2: 20-50중량％, NaCO3: 5중량％이하, SiO2: 5중량％이하 및 탄소 : 2중량％이하로 조성됨을 특징으로 하는 용강의 개재물 흡수용 첨가제.CaO: 30-50% by weight, MgO: 10-35% by weight, CaF 2 : 20-50% by weight, NaCO 3 : 5% by weight or less, SiO 2 : 5% by weight and carbon: 2% by weight or less An additive for absorbing inclusions in molten steel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870015089A 1987-12-28 1987-12-28 Additive for absorbing a interposition of molten steel KR900007442B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870015089A KR900007442B1 (en) 1987-12-28 1987-12-28 Additive for absorbing a interposition of molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870015089A KR900007442B1 (en) 1987-12-28 1987-12-28 Additive for absorbing a interposition of molten steel

Publications (2)

Publication Number Publication Date
KR890010224A true KR890010224A (en) 1989-08-07
KR900007442B1 KR900007442B1 (en) 1990-10-10

Family

ID=19267442

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015089A KR900007442B1 (en) 1987-12-28 1987-12-28 Additive for absorbing a interposition of molten steel

Country Status (1)

Country Link
KR (1) KR900007442B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100782707B1 (en) * 2001-12-24 2007-12-07 주식회사 포스코 The Method for Preventing Reoxidation of Molten Steel at Steelmaking Process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100782707B1 (en) * 2001-12-24 2007-12-07 주식회사 포스코 The Method for Preventing Reoxidation of Molten Steel at Steelmaking Process

Also Published As

Publication number Publication date
KR900007442B1 (en) 1990-10-10

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