KR970027323A - Deoxidizer for manufacturing clean steel of ultra low carbon steel heating material - Google Patents

Deoxidizer for manufacturing clean steel of ultra low carbon steel heating material Download PDF

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Publication number
KR970027323A
KR970027323A KR1019950045964A KR19950045964A KR970027323A KR 970027323 A KR970027323 A KR 970027323A KR 1019950045964 A KR1019950045964 A KR 1019950045964A KR 19950045964 A KR19950045964 A KR 19950045964A KR 970027323 A KR970027323 A KR 970027323A
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KR
South Korea
Prior art keywords
deoxidizer
steel
low carbon
carbon steel
low
Prior art date
Application number
KR1019950045964A
Other languages
Korean (ko)
Other versions
KR100224638B1 (en
Inventor
이광근
민경두
김봉조
Original Assignee
김종진
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 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019950045964A priority Critical patent/KR100224638B1/en
Publication of KR970027323A publication Critical patent/KR970027323A/en
Application granted granted Critical
Publication of KR100224638B1 publication Critical patent/KR100224638B1/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
    • C21C7/06—Deoxidising, e.g. killing

Abstract

본 발명은 제강공정에서 극저탄소강 제조시 전로 출강온도가 낮거나, 비정상조업으로 인해 용강온도가 낮은 경우 알루미늄의 산화반응열을 이용하여 승온할 경우에 사용되는 탈산제로써, 탈산제 투입후 발생되는 고융점의 탈산생성물을 저융점의 개재물로 제어함으로써 용강의 청정도를 향상시키는 것이다.The present invention is a deoxidizer used when the temperature of the converter is low when the ultra-low carbon steel is produced in the steelmaking process, or when the temperature of the molten steel is low due to abnormal operation using the heat of oxidation of aluminum, and a high melting point is generated after the addition of the deoxidizer. The cleanliness of molten steel is improved by controlling the deoxidation product of a by low melting point inclusion.

본 발명의 극저탄소강 승온재의 청정강 제조용 탈산제는 중량%로 알루미늄 ; 21∼45%, 석회석 : 8∼10%, 형석 : 47∼69%로 조성되는 것을 특징으로 한다.Deoxidizer for producing clean steel of the ultra-low carbon steel temperature rising material of the present invention by weight% aluminum; 21 to 45%, limestone: 8 to 10%, fluorite: 47 to 69%.

Description

극저탄소강 승온재의 청정강 제조용 탈산제Deoxidizer for manufacturing clean steel of ultra low carbon steel heating material

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

제1도는 칼슘산화물과 형석비에 따른 용융온도,1 is melting temperature according to calcium oxide and fluorspar ratio,

제2도는 형석과 알루미나비에 따른 용융온도,2 is the melting temperature according to the fluorspar and alumina ratio,

제3도는 승온용 탈산제의 제조방법.3 is a manufacturing method of the deoxidizer for increasing the temperature.

Claims (1)

중량%로 알루미늄 ; 21∼45%, 석회석 : 8∼10%, 형석 : 47∼69%로 조성되는 것을 특징으로 하는 극저탄소강 승온재의 청정강 제조용 탈산제.Aluminum by weight; A deoxidizer for producing clean steel of ultra-low carbon steel heating materials, comprising 21 to 45%, limestone: 8 to 10%, and fluorite: 47 to 69%. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950045964A 1995-11-30 1995-11-30 Deoxidation material of low carbon steel for high purity steel KR100224638B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950045964A KR100224638B1 (en) 1995-11-30 1995-11-30 Deoxidation material of low carbon steel for high purity steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950045964A KR100224638B1 (en) 1995-11-30 1995-11-30 Deoxidation material of low carbon steel for high purity steel

Publications (2)

Publication Number Publication Date
KR970027323A true KR970027323A (en) 1997-06-24
KR100224638B1 KR100224638B1 (en) 1999-10-15

Family

ID=19437296

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950045964A KR100224638B1 (en) 1995-11-30 1995-11-30 Deoxidation material of low carbon steel for high purity steel

Country Status (1)

Country Link
KR (1) KR100224638B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402003B1 (en) * 1999-08-30 2003-10-17 주식회사 포스코 A method for increasing scrap melting rate in electric furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402003B1 (en) * 1999-08-30 2003-10-17 주식회사 포스코 A method for increasing scrap melting rate in electric furnace

Also Published As

Publication number Publication date
KR100224638B1 (en) 1999-10-15

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