KR930013151A - Manufacturing method of ultra clean high carbon steel with excellent workability - Google Patents

Manufacturing method of ultra clean high carbon steel with excellent workability Download PDF

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Publication number
KR930013151A
KR930013151A KR1019910024833A KR910024833A KR930013151A KR 930013151 A KR930013151 A KR 930013151A KR 1019910024833 A KR1019910024833 A KR 1019910024833A KR 910024833 A KR910024833 A KR 910024833A KR 930013151 A KR930013151 A KR 930013151A
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KR
South Korea
Prior art keywords
molten steel
less
high carbon
clean high
carbon steel
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Application number
KR1019910024833A
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Korean (ko)
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KR940004821B1 (en
Inventor
범진문
최종훈
정효안
Original Assignee
정명식
포항종합제철 주식회사
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Priority to KR1019910024833A priority Critical patent/KR940004821B1/en
Publication of KR930013151A publication Critical patent/KR930013151A/en
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Publication of KR940004821B1 publication Critical patent/KR940004821B1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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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

본 발명은 가공성이 우수한 극청정 고탄소강의 제조방법에 관한것으로서, 신선 및 연선가공성이 우수한 극청정 고탄소강의 제조방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for producing ultra-clean high carbon steel with excellent workability, and to provide a method for producing ultra-clean high carbon steel with excellent drawing and stranding properties.

본 발명은 C : 0.65-0.90중량%, Total·Al : 0.001중량% 이하, Total·O2: 20ppm 이하, N2: 25ppm이하, P : 0.011 중량%이하, 잔부 Fe 및 기타불가피하게 함유된 불순물로 이루어진 용강을 제조하고, 레들 퍼네이스, 탈가스설비 및 턴디쉬에서 상기 용강에 플럭스를 각각 800-1200㎏/100ton-용강, 100-130㎏/100ton-용강, 및 100-130㎏/100ton-용강 투입하여 플럭스 처리하므로서, 가공성이 우수한 극청정강 고탄소강을 제조하는 방법을 그 요지로 한다.The present invention is C: 0.65-0.90% by weight, Total Al: 0.001% by weight or less, TotalO 2 : 20ppm or less, N 2 : 25ppm or less, P: 0.011% by weight, balance Fe and other inevitable impurities The molten steel is prepared, and the flux to the molten steel in ladle furnace, degassing equipment and tundish, respectively, 800-1200kg / 100ton-molten steel, 100-130kg / 100ton-molten steel, and 100-130kg / 100ton- The method of manufacturing ultra-clean high carbon steel excellent in workability by making molten steel into a flux process is made into the summary.

Description

가공성이 우수한 극청정 고탄소강의 제조방법Manufacturing method of ultra clean high carbon steel with excellent workability

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

제1도는 알루미나 개재물 함량에 따른 신선 및 연선시의 단선율변화를 나타내는 그래프.1 is a graph showing the change in the disconnection rate during drawing and stranding according to the content of alumina inclusions.

제2도는 개재물 거동을 나타내는 CaO-SiO2-Al2O33원계 상태도.The CaO-SiO 2 -Al 2 O showing the turning behavior of inclusions 23 ternary phase diagram.

Claims (1)

C : 0.65-0.90중량%, Total·Al : 0.001중량% 이하, Total·O2: 10ppm 이하, N2: 25ppm이하, P : 0.011 중량%이하, 잔부 Fe 및 기타 불가피하게 함유된 불순물로 이루어진 용강을 제조하고, 레들 퍼네이스, 탈가스설비 및 턴디쉬에서 상기 용강에 CaO : 44.0%, SiO2: 52.0%, Al2O3: 2.0% 이하, 및 기타성분으로 이루어진 플럭스를 각각 800-1200㎏/100ton-용강, 100-130㎏/100ton-용강, 및 100-130㎏/100ton-용강 투입하여 플럭스 처리하는 것을 특징으로 하는 가공성이 우수한 극청정 고탄소강의 제조방법.C: 0.65-0.90 wt%, Total Al: 0.001 wt% or less, Total O 2 : 10 ppm or less, N 2 : 25 ppm or less, P: 0.011 wt% or less, remainder Fe and other unavoidable impurities In the ladle furnace, degassing equipment and tundish, the flux of CaO: 44.0%, SiO 2 : 52.0%, Al 2 O 3 : 2.0% or less, and other components in the molten steel 800-1200 kg each / 100ton-molten steel, 100-130kg / 100ton-molten steel, and 100-130kg / 100ton-molten steel for the flux treatment by producing a super clean high carbon steel excellent in workability, characterized in that the flux treatment. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019910024833A 1991-12-28 1991-12-28 Making method of high carbon steel KR940004821B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024833A KR940004821B1 (en) 1991-12-28 1991-12-28 Making method of high carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024833A KR940004821B1 (en) 1991-12-28 1991-12-28 Making method of high carbon steel

Publications (2)

Publication Number Publication Date
KR930013151A true KR930013151A (en) 1993-07-21
KR940004821B1 KR940004821B1 (en) 1994-06-01

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Application Number Title Priority Date Filing Date
KR1019910024833A KR940004821B1 (en) 1991-12-28 1991-12-28 Making method of high carbon steel

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100349135B1 (en) * 1995-12-21 2002-12-18 주식회사 포스코 Refining method of molten steel during continuous casting of billet for cold forging
KR100832997B1 (en) * 2001-12-22 2008-05-27 주식회사 포스코 Method for Producing Al-Killed Steel with High Cleanliness
KR100832996B1 (en) * 2001-12-22 2008-05-27 주식회사 포스코 Method for Manufacturing High Carbon Steel Using Molten Pig Iron with High Phosphorus Content

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100349135B1 (en) * 1995-12-21 2002-12-18 주식회사 포스코 Refining method of molten steel during continuous casting of billet for cold forging
KR100832997B1 (en) * 2001-12-22 2008-05-27 주식회사 포스코 Method for Producing Al-Killed Steel with High Cleanliness
KR100832996B1 (en) * 2001-12-22 2008-05-27 주식회사 포스코 Method for Manufacturing High Carbon Steel Using Molten Pig Iron with High Phosphorus Content

Also Published As

Publication number Publication date
KR940004821B1 (en) 1994-06-01

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