KR870009231A - 용융금속중의 탈산제농도 측정방법 - Google Patents

용융금속중의 탈산제농도 측정방법 Download PDF

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KR870009231A
KR870009231A KR870002774A KR870002774A KR870009231A KR 870009231 A KR870009231 A KR 870009231A KR 870002774 A KR870002774 A KR 870002774A KR 870002774 A KR870002774 A KR 870002774A KR 870009231 A KR870009231 A KR 870009231A
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deoxidizer
bath
molten metal
gas
stirring
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KR870002774A
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KR910004142B1 (ko
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프란시스 릴레이 마이큰
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티모시 엔. 비쉐
유니온 카바이드 코포레이션
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/202—Constituents thereof
    • G01N33/2022—Non-metallic constituents
    • G01N33/2025—Gaseous constituents

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

내용 없음

Description

용융금속중의 탈산제농도 측정방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제10도는 본 발명의 방법으로 측정한 탈산제의 농도와 실제 화학적 분석으로 측정한 상응하는 탈산제의 농도와의 비교를 나타내는 그래프이다.

Claims (14)

  1. 산소탐침을 사용하여 측정된 욕내의 산소활성을 이용하여 용융 금속 욕중의 탈산제 농도를 측정하는 방법에 있어서,
    (a) 용해된 산소 및 금속산화물(들)을 함휴하는 용융 금속 욕에 탈산제를 가하고:
    (b) 최소한 약간의 탈산제를 욕내의 용해된 산소와 반응시켜 탈산제 산화물(들)을 형성시킨 다음, 상기 금속산화물(들)과 용액을 형성시키고:
    (c) 산소탐침을 사용하기 전, 일정시간동안, 최소한 9t [여기에서, t=800E-0.4이고 E=[226+307ln(1+0.206h)]V/W (여기서, t는 초이고, h는 피트(feet)로 나타낸 교반용 기체주입점 상부의 욕표면의 높이이며, V는 분당 입방피트로 나타낸 교반용 기체유속이고, W는 톤(ton)으로 나타낸욕의 중량이다)이다]동안 욕의 하부면에 기체를 주입함으로써 용융금속욕을 교반시킴을 특징으로 하는 방법.
  2. 제1항에 있어서,탈산제가 알류미늄인 방법.
  3. 제1항에 있어서, 탈산제가 실리콘인 방법.
  4. 제1항에 있어서, 탈산제가 알루미늄과 실리콘인 방법.
  5. 제1항에 있어서, 용융금속이 강철인 방법.
  6. 제1항에 있어서, 용융금속이 니켈-기본 합금인 방법.
  7. 제1항에 있어서, 교반용 기체가 아르곤인 방법.
  8. 제1항에 있어서, 교반용 기체가 질소인 방법.
  9. 제1항에 있어서, 탈산제를 배치(batch)식으로 가하는 방법.
  10. 제1항에 있어서, 탈산제를 기체와 함께 취입분말로서 용융물에 가하는 방법.
  11. 제1항에 있어서, 탈산제를 연속적으로 공되느 선(wire)으로서 용융물에 가하는 방법.
  12. 제1항에 있어서, 탈산제를 티탄, 바나듐, 칼슘, 지르코늄 및 회토류금속중에서 선택하는 방법.
  13. 제5항에 있어서, 용융물을 AOD방법으로 정련하는 방법.
  14. 제13항에 있어서, 교반시간이 3분 이상인 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870002774A 1986-03-27 1987-03-26 용융 금속중의 탈산제 농도 측정방법 KR910004142B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US84455786A 1986-03-27 1986-03-27
US844557 1986-03-27
US844.557 1986-03-27

Publications (2)

Publication Number Publication Date
KR870009231A true KR870009231A (ko) 1987-10-24
KR910004142B1 KR910004142B1 (ko) 1991-06-22

Family

ID=25293056

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870002774A KR910004142B1 (ko) 1986-03-27 1987-03-26 용융 금속중의 탈산제 농도 측정방법

Country Status (5)

Country Link
EP (1) EP0239116B1 (ko)
JP (1) JPS62290819A (ko)
KR (1) KR910004142B1 (ko)
CA (1) CA1299985C (ko)
DE (1) DE3785954T2 (ko)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253574A (en) * 1938-01-11 1941-08-26 Bethlehem Steel Corp Method of controlling the deoxidation of steel
GB1082866A (en) * 1965-07-30 1967-09-13 Noranda Mines Ltd Analytical process and apparatus
IT996314B (it) * 1973-10-17 1975-12-10 Centro Speriment Metallurg Procedimento per la determinazione del tenore di ossigeno nei ragni metallici e relativo dispositivo
JPS5171225A (en) * 1974-12-18 1976-06-19 Nippon Steel Corp Kirudokokaino seizohoho
FR2402000A1 (fr) * 1977-09-02 1979-03-30 Morival Fernand Perfectionnements aux appareils destines a injecter une bande continue d'aluminium dans l'acier en fusion
US4238227A (en) * 1979-06-27 1980-12-09 United States Steel Corporation Cleansing of steel by gas rinsing
JPS5873713A (ja) * 1981-10-27 1983-05-04 Nippon Steel Corp 強脱酸元素添加鋼の製造方法
JPS59166611A (ja) * 1983-03-12 1984-09-20 Nippon Steel Corp 含クロム溶鋼の還元精錬法
JPS6184341A (ja) * 1984-10-02 1986-04-28 Mitsui Eng & Shipbuild Co Ltd 酸素、硫黄、窒素含有量の少ない合金の製造方法
DE3437041A1 (de) * 1984-10-09 1986-04-10 Siemens AG, 1000 Berlin und 8000 München Quantitative bestimmung von legierungsbestandteilen
JPS61143509A (ja) * 1984-12-17 1986-07-01 Mitsubishi Heavy Ind Ltd 脱酸槽

Also Published As

Publication number Publication date
EP0239116A3 (en) 1990-01-24
JPH0425324B2 (ko) 1992-04-30
CA1299985C (en) 1992-05-05
JPS62290819A (ja) 1987-12-17
EP0239116A2 (en) 1987-09-30
DE3785954T2 (de) 1993-09-30
EP0239116B1 (en) 1993-05-26
KR910004142B1 (ko) 1991-06-22
DE3785954D1 (de) 1993-07-01

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