KR960017864A - Slag preparation - Google Patents

Slag preparation Download PDF

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Publication number
KR960017864A
KR960017864A KR1019940032268A KR19940032268A KR960017864A KR 960017864 A KR960017864 A KR 960017864A KR 1019940032268 A KR1019940032268 A KR 1019940032268A KR 19940032268 A KR19940032268 A KR 19940032268A KR 960017864 A KR960017864 A KR 960017864A
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KR
South Korea
Prior art keywords
less
weight
slag
molten steel
slag preparation
Prior art date
Application number
KR1019940032268A
Other languages
Korean (ko)
Other versions
KR970004987B1 (en
Inventor
최인섭
허완옥
이형복
김만래
Original Assignee
김만제
포항종합제철 주식회사
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 filed Critical 김만제
Priority to KR1019940032268A priority Critical patent/KR970004987B1/en
Publication of KR960017864A publication Critical patent/KR960017864A/en
Application granted granted Critical
Publication of KR970004987B1 publication Critical patent/KR970004987B1/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
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal

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

Abstract

본 발명은 청정(淸淨)한 용강제조에 있어서 작어보한경이 우수할 뿐만 아니라 슬래그에 의한 용강의 오염 억제 및 고효율의 강중 개재물 흡수를 목적으로 슬래그 상부에 첨가되는 혼합물에 관한 것이다.The present invention relates to a mixture which is added to the upper part of slag for the purpose of suppressing contamination of molten steel by slag and absorbing the inclusions in steel with high efficiency in clean molten steel production.

본 슬래그 조재제는 금속 알루미늄(Al) : 30~60중량%, CaCo3: 20~50중량%, Al2O3:10중량% 이하, SiO2:10중량% 이하, N :0.2중량% 이하, Na+K : 0.1중량% 이하, Cl+F : 0.3중량% 이하로 조성되고, 입도가 5~30mm인 것을 특징으로 한다.The slag jojae agent is a metal aluminum (Al): 30 ~ 60 wt%, CaCo 3: 20 ~ 50 wt%, Al 2 O 3: 10 wt%, SiO 2: 10 wt% or less, N: 0.2% or less , Na + K: 0.1 wt% or less, Cl + F: 0.3 wt% or less, characterized in that the particle size is 5 ~ 30mm.

Description

슬래그 조재제Slag preparation

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명과 종래법의 FeO+MNO&RH처리시 [O]f의 비교그래프이다.1 is a comparative graph of [O] f during FeO + MNO & RH treatment of the present invention and the conventional method.

Claims (1)

금속 알루미늄(Al) : 30~60중량%, CaCo3: 20~50중량%, Al2O3:10중량% 이하, SiO2:10중량% 이하, N :0.2중량% 이하, Na+K : 0.1중량% 이하, Cl+F : 0.3중량% 이하로 조성되고, 그 입도가 5~30mm인 것을 특징으로 하는 분진 또는 백연발생이 적고, 슬래그 탈산 및 강중, 개재물 흡수능이 양호한 슬래그 조재제.Metal aluminum (Al): 30 to 60% by weight, CaCo 3 : 20 to 50% by weight, Al 2 O 3 : 10% by weight or less, SiO 2 : 10% by weight or less, N: 0.2% by weight or less, Na + K: 0.1% by weight or less, Cl + F: 0.3% by weight or less, the particle size is 5 ~ 30mm, less dust or smoke, characterized in that slag deoxidation and steel, good slag absorption ability of inclusions. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940032268A 1994-11-30 1994-11-30 Slag making material KR970004987B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940032268A KR970004987B1 (en) 1994-11-30 1994-11-30 Slag making material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940032268A KR970004987B1 (en) 1994-11-30 1994-11-30 Slag making material

Publications (2)

Publication Number Publication Date
KR960017864A true KR960017864A (en) 1996-06-17
KR970004987B1 KR970004987B1 (en) 1997-04-10

Family

ID=19399901

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940032268A KR970004987B1 (en) 1994-11-30 1994-11-30 Slag making material

Country Status (1)

Country Link
KR (1) KR970004987B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020000605A (en) * 2000-06-26 2002-01-05 이구택 A method for reducing visible dust during pouring dephosphorized melts into ladle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017511B1 (en) * 2008-09-29 2011-02-25 현대제철 주식회사 Refining method of the molten steel for manufacturing ultra low carbon steel
KR101246205B1 (en) * 2011-02-24 2013-03-21 현대제철 주식회사 Slag deoxidizer for manufacturing ultra low carbon steel and refining method using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020000605A (en) * 2000-06-26 2002-01-05 이구택 A method for reducing visible dust during pouring dephosphorized melts into ladle

Also Published As

Publication number Publication date
KR970004987B1 (en) 1997-04-10

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