KR970043100A - 연강선재 제조시 탈가스 설비에서의 탈유방법 - Google Patents

연강선재 제조시 탈가스 설비에서의 탈유방법 Download PDF

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Publication number
KR970043100A
KR970043100A KR1019950066246A KR19950066246A KR970043100A KR 970043100 A KR970043100 A KR 970043100A KR 1019950066246 A KR1019950066246 A KR 1019950066246A KR 19950066246 A KR19950066246 A KR 19950066246A KR 970043100 A KR970043100 A KR 970043100A
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KR
South Korea
Prior art keywords
facility
steel wire
degassing
degassing facility
mild steel
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Application number
KR1019950066246A
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English (en)
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KR100226931B1 (ko
Inventor
강석은
윤원규
Original Assignee
김종진
포항종합제철 주식회사
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Application filed by 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019950066246A priority Critical patent/KR100226931B1/ko
Publication of KR970043100A publication Critical patent/KR970043100A/ko
Application granted granted Critical
Publication of KR100226931B1 publication Critical patent/KR100226931B1/ko

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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
    • C21C3/00—Manufacture of wrought-iron or wrought-steel
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/10—Handling in a vacuum
    • 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
    • C21C2300/00—Process aspects
    • C21C2300/02—Foam creation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F27D2027/002—Gas stirring

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

Abstract

본 발명은 못, 철사 와이어 로프등으로 사용되는 연강선재를 제조하는 방법에 관한 것으로써, 연강선재 제조시 탈가스 설비에서 CaCN2를 탈유제로 첨가하므로서, 주변의 코너크랙 발생을 저감시킬 뿐만 아니라 용강중의 산소함량 조정을 용이하게 할 수 있는 탈가스설빙서의 탈유방법을 제공하고자 하는데 그 목적이 있다. 본 발명은 전로에서 출강된 용강을 탈가스 설비에서 탈탄 및 산소함량 조정을 행한다음, 버블링설비로 이송하여 버블링 및 산소함량 조정을 행한 후 연속주조하여 연강선재를 제조함에 있어서, 상기 탈가스 설비에서 탈탄처리를 행하기전에 용강톤당 0.9㎏이상의 CaCN2를 탈가스설비에 투입하고 진공도를 20-50torr 로 유지하여 탈유 처리하는 연강선재 제조시 탈가스 설비에서의 탈유방법을 그 요지로 한다.

Description

연강선재 제조시 탈가스 설비에서의 탈유방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 주편(소강)의 유황함량에 따른 주편코너크랙 발생비 변화를 나타내는 그래프,
제4도는 발명 및 종래 방법의 일례에 대한 강중산소함량 변화도

Claims (1)

  1. 전로에서 출강된 용강을 탈가스 설비에서 탈탄 및 산소함량 조정을 행한다음, 버블링설비로 이송하여 버블링 및 산소함량 조정을 행한 후 연속주조하여 연강선재를 제조함에 있어서, 상기 탈가스 설비에서 탈탄처리를 행하기 전에 용강톤당0.9-1.1㎏이상의 CaCN2를 탈가스설비에 투입하고 진공도를 20-50torr 로 유지하여 탈유처리하는 연강선재 제조시 탈가스 설비에서의 탈유방법.
KR1019950066246A 1995-12-29 1995-12-29 연강선재 제조시 탈가스 설비에서의 탈유방법 KR100226931B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950066246A KR100226931B1 (ko) 1995-12-29 1995-12-29 연강선재 제조시 탈가스 설비에서의 탈유방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950066246A KR100226931B1 (ko) 1995-12-29 1995-12-29 연강선재 제조시 탈가스 설비에서의 탈유방법

Publications (2)

Publication Number Publication Date
KR970043100A true KR970043100A (ko) 1997-07-26
KR100226931B1 KR100226931B1 (ko) 1999-10-15

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Application Number Title Priority Date Filing Date
KR1019950066246A KR100226931B1 (ko) 1995-12-29 1995-12-29 연강선재 제조시 탈가스 설비에서의 탈유방법

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KR (1) KR100226931B1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100929179B1 (ko) * 2002-12-20 2009-12-01 주식회사 포스코 ＣａＯ-ＣａＣＮ2 혼합 조성물에 의한 용강의탈황촉진방법
CN102171370A (zh) * 2008-08-04 2011-08-31 纽科尔公司 利用传统炼钢设备低成本地制造低碳、低硫以及低氮钢
CN111194357A (zh) 2017-08-24 2020-05-22 纽科尔公司 低碳钢的改进制造

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Publication number Publication date
KR100226931B1 (ko) 1999-10-15

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