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
Other languages
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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