KR970033256A - Ultra low carbon steel continuous casting mold flux - Google Patents

Ultra low carbon steel continuous casting mold flux Download PDF

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Publication number
KR970033256A
KR970033256A KR1019950068440A KR19950068440A KR970033256A KR 970033256 A KR970033256 A KR 970033256A KR 1019950068440 A KR1019950068440 A KR 1019950068440A KR 19950068440 A KR19950068440 A KR 19950068440A KR 970033256 A KR970033256 A KR 970033256A
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KR
South Korea
Prior art keywords
mold flux
continuous casting
carbon steel
ultra low
low carbon
Prior art date
Application number
KR1019950068440A
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Korean (ko)
Other versions
KR100226941B1 (en
Inventor
고재윤
정태식
이재우
Original Assignee
김종진
포항종합제철주식회사
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.)
Filing date
Publication date
Application filed by 김종진, 포항종합제철주식회사 filed Critical 김종진
Priority to KR1019950068440A priority Critical patent/KR100226941B1/en
Publication of KR970033256A publication Critical patent/KR970033256A/en
Application granted granted Critical
Publication of KR100226941B1 publication Critical patent/KR100226941B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/07—Lubricating the moulds

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

본 발명은 국저탄소강용 몰드 플럭스에 관한 것이며, 그 목적은 연속주조시 주편내 개재물 형성에 의한 결함이 저감되는 극저탄소강 몰드플럭스를 제공함에 있다.The present invention relates to a mold flux for low carbon steel, and its object is to provide an ultra low carbon steel mold flux in which defects due to inclusions in cast steel are reduced during continuous casting.

본 발명은 탄소함량이 0.01중량% 이하로 함유된 극저탄소강을 연속주조시 사용되는 몰드 플럭스에 있어서, 중량%로 Al2O3: 5-8%, MgO : 4-9%, Na2O : 3%이하, 나머지 CaO, SiO2를 포함하고, 상기 CaO/SiO2의 비가 0.8-1.1인 극저탄소강 연속주조용 몰드 플럭스에 관한 것을 그 기술적 요지로 한다.The present invention is a mold flux used for continuous casting of ultra low carbon steel containing less than 0.01% by weight of carbon, by weight% Al 2 O 3 : 5-8%, MgO: 4-9%, Na 2 O The technical gist of the ultra low-carbon steel continuous casting mold flux containing 3% or less of the remaining CaO and SiO 2 and wherein the CaO / SiO 2 ratio is 0.8-1.1.

Description

극저탄소강 연속주조용 몰드 플럭스Ultra low carbon steel continuous casting mold flux

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

제1도는 일반적인 연속주조 과정을 설명하기 위한 설명도.1 is an explanatory diagram for explaining a general continuous casting process.

제2도는 몰드 플럭스중의 Na2O 및 MgO함량에 따른 계면장력의 변화를 나타내는 그래프.2 is a graph showing the change in interfacial tension according to Na 2 O and MgO content in the mold flux.

제3도는 본 발명제 및 종래제를 사용하여 연속주조된 주편내에 기재물 정도와 불량 발생율을 비교 도시한 그래프.FIG. 3 is a graph showing the degree of defects and the incidence of defects in cast steel continuously cast using the present invention and the conventional agent.

Claims (2)

탄소함량이 0.01중량% 이하로 함유된 극저탄소강을 연속주조시 사용되는 몰드 플럭스에 있어서 중량%로, Al2O3: 5-8%, MgO : 4-9%, Na2O : 3%이하, 나머지 CaO, SiO2를 포함하고, 상기 CaO/SiO2의 비가 0.8-1임을 특징으로 하는 극저탄소강 연속 주조용 몰드 플럭스.Ultra low carbon steel containing less than 0.01% by weight of carbon in the mold flux used for continuous casting, Al 2 O 3 : 5-8%, MgO: 4-9%, Na 2 O: 3% Hereinafter, a mold flux for continuous casting of ultra low carbon steels comprising remaining CaO and SiO 2 , wherein the CaO / SiO 2 ratio is 0.8-1. 제1항에 있어서, 상기 몰드 플록스의 계면장력이 400-450dyne/cm임을 특징으로 하는 극저탄소강 연속주조용 몰드플럭스.The mold flux of claim 1, wherein the mold flux has an interfacial tension of 400-450 dyne / cm. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950068440A 1995-12-30 1995-12-30 Mold flux for continuous casting of ultra low carbon steel KR100226941B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950068440A KR100226941B1 (en) 1995-12-30 1995-12-30 Mold flux for continuous casting of ultra low carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950068440A KR100226941B1 (en) 1995-12-30 1995-12-30 Mold flux for continuous casting of ultra low carbon steel

Publications (2)

Publication Number Publication Date
KR970033256A true KR970033256A (en) 1997-07-22
KR100226941B1 KR100226941B1 (en) 1999-10-15

Family

ID=19448071

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950068440A KR100226941B1 (en) 1995-12-30 1995-12-30 Mold flux for continuous casting of ultra low carbon steel

Country Status (1)

Country Link
KR (1) KR100226941B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020052121A (en) * 2000-12-23 2002-07-02 이구택 A mold flux having a larger interfacial thermal resistance in the continuous casting of steel
KR100455812B1 (en) * 2002-07-23 2004-11-06 스톨베르그 앤드 삼일 주식회사 Synthetic calcium aluminium silicate composite for mold flux and mold flux manufactured therefrom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020024064A (en) * 2002-01-23 2002-03-29 강 석 호, 보도시라 Synthetic sodium calcium silicate composite for mold flux and mold flux manufactured therefrom
KR100803731B1 (en) 2006-11-15 2008-02-15 주식회사 포스코 Molten mold flux preheater and continuous casting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020052121A (en) * 2000-12-23 2002-07-02 이구택 A mold flux having a larger interfacial thermal resistance in the continuous casting of steel
KR100455812B1 (en) * 2002-07-23 2004-11-06 스톨베르그 앤드 삼일 주식회사 Synthetic calcium aluminium silicate composite for mold flux and mold flux manufactured therefrom

Also Published As

Publication number Publication date
KR100226941B1 (en) 1999-10-15

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