KR950018512A - Manufacturing method of steel ladle slag - Google Patents

Manufacturing method of steel ladle slag Download PDF

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Publication number
KR950018512A
KR950018512A KR1019930027673A KR930027673A KR950018512A KR 950018512 A KR950018512 A KR 950018512A KR 1019930027673 A KR1019930027673 A KR 1019930027673A KR 930027673 A KR930027673 A KR 930027673A KR 950018512 A KR950018512 A KR 950018512A
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KR
South Korea
Prior art keywords
slag
ladle
converter
manufacturing
weight
Prior art date
Application number
KR1019930027673A
Other languages
Korean (ko)
Other versions
KR950012409B1 (en
Inventor
김기성
Original Assignee
조말수
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 조말수, 포항종합제철 주식회사 filed Critical 조말수
Priority to KR1019930027673A priority Critical patent/KR950012409B1/en
Publication of KR950018512A publication Critical patent/KR950018512A/en
Application granted granted Critical
Publication of KR950012409B1 publication Critical patent/KR950012409B1/en

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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
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • 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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle

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

Abstract

본 발명은 제강 들 슬래그를 제조하는 방법에 관한 것으로써, 전로슬래그와 매용제첨가에 의해 제조된 저융점 고청정강 제조용 래들 슬래그에 MgO를 함유한 매용제를 첨가함으로써, 아크가열 장치로 용강을 가열할 시 슬래그층 부위에서 발생되는 아크열의 효율을 높이고 래들 슬래그 라인의 내화물 수명을 향상시킬 뿐만 아니라 탈류율이 우수한 제강래들 슬래그를 제조하고자 하는데, 그 목적이 있다.The present invention relates to a method for manufacturing steelmaking slag, wherein a molten steel containing MgO is added to a ladle slag for producing a low melting point high clean steel manufactured by adding a converter slag and a solvent, thereby heating molten steel with an arc heating device. The purpose of the present invention is to improve the efficiency of arc heat generated in the slag layer area and to improve the refractory life of the ladle slag line, as well as to manufacture steel ladle slag with excellent dehydration rate.

본 발명은 전로에서 출강원료후 래들내에 유입된 전로슬래그에 생석회 또는 합성후락스를 전로슬래그 중량에 대하여 50-100중량% 투입하여 제조되는 통상의 고청정감 제조용 래들 슬래그에 MgO를 함유하는 매용제를 전로슬래그 중량에 대하여 10-40중량% 투입하는 것을 특징으로 하는 저강래들 슬래그의 제조방법을 그 요지로 한다.In the present invention, a solvent containing MgO in a conventional high-cleanness manufacturing ladle slag manufactured by adding 50-100% by weight of quicklime or synthetic flax to the converter slag introduced into the ladle after the raw material in the converter is converted into slag. The summary of the method for producing low slab slag, characterized in that 10 to 40% by weight relative to the slag weight.

Description

제강래들슬래그의 제조방법Manufacturing method of steel ladle slag

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

Claims (1)

전로에서 출강원료후 래들내에 유입된 전로슬래그에 생석회 또는 합성후락스를 전로슬래그 중량에 대하여 50-100중량% 투입하여 제조되는 통상의 고청정강 제조용 래들 슬래그에 MgO를 함유하는 매용제를 전로슬래그 중량에 대하여 10-40중량% 투입하는 것을 특징으로 하는 제강래들 슬래그의 제조방법.MgO-containing solvents are added to the conventional slag slag manufactured by adding 50-100% by weight of quicklime or synthetic flax to the converter slag introduced into the ladle after the starting raw material in the converter. Method of producing a steel ladle slag, characterized in that about 10 to 40% by weight relative to. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930027673A 1993-12-14 1993-12-14 Making method of ladie slag KR950012409B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930027673A KR950012409B1 (en) 1993-12-14 1993-12-14 Making method of ladie slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930027673A KR950012409B1 (en) 1993-12-14 1993-12-14 Making method of ladie slag

Publications (2)

Publication Number Publication Date
KR950018512A true KR950018512A (en) 1995-07-22
KR950012409B1 KR950012409B1 (en) 1995-10-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930027673A KR950012409B1 (en) 1993-12-14 1993-12-14 Making method of ladie slag

Country Status (1)

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KR (1) KR950012409B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010104526A (en) * 2000-05-15 2001-11-26 이구택 Process for desulfurizing desiliconized molten iron by using ladle slag

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916564B1 (en) * 2002-12-24 2009-09-08 주식회사 포스코 Method for producing temperature rising slag for rising temperature of metal in ladle
KR101260055B1 (en) * 2007-12-31 2013-04-30 주식회사 포스코 Method for Depressing Slag Foaming in Vacuum Tank Degasser
KR101388064B1 (en) * 2012-06-28 2014-04-25 현대제철 주식회사 Flux for manufacturing of ultra low carbon steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010104526A (en) * 2000-05-15 2001-11-26 이구택 Process for desulfurizing desiliconized molten iron by using ladle slag

Also Published As

Publication number Publication date
KR950012409B1 (en) 1995-10-17

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