CS274278B2 - Method of molten steel refining - Google Patents

Method of molten steel refining Download PDF

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Publication number
CS274278B2
CS274278B2 CS365786A CS365786A CS274278B2 CS 274278 B2 CS274278 B2 CS 274278B2 CS 365786 A CS365786 A CS 365786A CS 365786 A CS365786 A CS 365786A CS 274278 B2 CS274278 B2 CS 274278B2
Authority
CS
Czechoslovakia
Prior art keywords
oxygen
bath
melt
steel
level
Prior art date
Application number
CS365786A
Other languages
Czech (cs)
English (en)
Other versions
CS365786A2 (en
Inventor
Ian F Ing Masterson
Original Assignee
Union Carbide Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24956996&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CS274278(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of CS365786A2 publication Critical patent/CS365786A2/cs
Publication of CS274278B2 publication Critical patent/CS274278B2/cs

Links

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
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing

Landscapes

  • 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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Forging (AREA)
CS365786A 1985-05-20 1986-05-20 Method of molten steel refining CS274278B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/735,741 US4599107A (en) 1985-05-20 1985-05-20 Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining

Publications (2)

Publication Number Publication Date
CS365786A2 CS365786A2 (en) 1990-09-12
CS274278B2 true CS274278B2 (en) 1991-04-11

Family

ID=24956996

Family Applications (1)

Application Number Title Priority Date Filing Date
CS365786A CS274278B2 (en) 1985-05-20 1986-05-20 Method of molten steel refining

Country Status (15)

Country Link
US (1) US4599107A (es)
EP (1) EP0204210B1 (es)
JP (1) JPS61266516A (es)
KR (1) KR910002950B1 (es)
CN (1) CN1009837B (es)
AT (1) ATE53405T1 (es)
AU (1) AU589633B2 (es)
BR (1) BR8602264A (es)
CA (1) CA1245862A (es)
CS (1) CS274278B2 (es)
DE (1) DE3671762D1 (es)
ES (1) ES8707300A1 (es)
IL (1) IL78850A (es)
IN (1) IN166109B (es)
MX (1) MX165053B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572544A (en) 1994-07-21 1996-11-05 Praxair Technology, Inc. Electric arc furnace post combustion method
JP3410553B2 (ja) * 1994-07-27 2003-05-26 新日本製鐵株式会社 含クロム溶鋼の脱炭精錬法
US5714113A (en) * 1994-08-29 1998-02-03 American Combustion, Inc. Apparatus for electric steelmaking
DE19621143A1 (de) * 1996-01-31 1997-08-07 Mannesmann Ag Verfahren zur Erzeugung nichtrostender Stähle
US5814125A (en) * 1997-03-18 1998-09-29 Praxair Technology, Inc. Method for introducing gas into a liquid
US6096261A (en) * 1997-11-20 2000-08-01 Praxair Technology, Inc. Coherent jet injector lance
US6176894B1 (en) 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
US6932854B2 (en) * 2004-01-23 2005-08-23 Praxair Technology, Inc. Method for producing low carbon steel
DE102005032929A1 (de) * 2004-11-12 2006-05-18 Sms Demag Ag Herstellung von Rostfreistahl der ferritischen Stahlgruppe AISI 4xx in einem AOD-Konverter
US9045805B2 (en) 2013-03-12 2015-06-02 Ati Properties, Inc. Alloy refining methods

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen
US3854932A (en) * 1973-06-18 1974-12-17 Allegheny Ludlum Ind Inc Process for production of stainless steel
JPS5392319A (en) * 1977-01-25 1978-08-14 Nisshin Steel Co Ltd Method of making ultralowwcarbon stainless steel
US4280838A (en) * 1979-05-24 1981-07-28 Sumitomo Metal Industries, Ltd. Production of carbon steel and low-alloy steel with bottom blowing basic oxygen furnace
AU2829080A (en) * 1979-05-24 1980-11-27 Sumitomo Metal Ind Carbon steel and low alloy steel with bottom blowing b.o.f.
JPS5921367B2 (ja) * 1979-05-29 1984-05-19 大同特殊鋼株式会社 含クロム鋼の精錬方法
JPS5623215A (en) * 1979-08-02 1981-03-05 Nippon Kokan Kk <Nkk> Converter steel making method
ATE5202T1 (de) * 1979-12-11 1983-11-15 Eisenwerk-Gesellschaft Maximilianshuette Mbh Stahlerzeugungsverfahren.
DD154026A5 (de) * 1979-12-28 1982-02-17 Creusot Loire Mischblasverfahren zur raffination der metalle im konverter
LU82069A1 (fr) * 1980-01-09 1981-09-10 Arbed Procede d'affinage d'un bain de metal
DE3031680A1 (de) * 1980-08-22 1982-03-11 Klöckner-Werke AG, 4100 Duisburg Verfahren zur gaserzeugung
JPS5757816A (en) * 1980-09-19 1982-04-07 Kawasaki Steel Corp Steel making method by composite top and bottom blown converter
US4365992A (en) * 1981-08-20 1982-12-28 Pennsylvania Engineering Corporation Method of treating ferrous metal
NL8201269A (nl) * 1982-03-26 1983-10-17 Hoogovens Groep Bv Werkwijze voor het vervaardigen van staal in een converter uitgaande van ruwijzer en schrot.
US4402739A (en) * 1982-07-13 1983-09-06 Kawasaki Steel Corporation Method of operation of a top-and-bottom blown converter
US4462825A (en) * 1983-09-01 1984-07-31 United States Steel Corporation Method for increasing the scrap melting capability of metal refining processes
US4488903A (en) * 1984-03-14 1984-12-18 Union Carbide Corporation Rapid decarburization steelmaking process
US4514220A (en) * 1984-04-26 1985-04-30 Allegheny Ludlum Steel Corporation Method for producing steel in a top-blown vessel

Also Published As

Publication number Publication date
CS365786A2 (en) 1990-09-12
DE3671762D1 (de) 1990-07-12
JPS61266516A (ja) 1986-11-26
US4599107A (en) 1986-07-08
ES555135A0 (es) 1987-07-16
IN166109B (es) 1990-03-17
EP0204210A1 (en) 1986-12-10
AU5758686A (en) 1986-11-27
ES8707300A1 (es) 1987-07-16
IL78850A0 (en) 1986-09-30
CN86103345A (zh) 1986-11-19
ATE53405T1 (de) 1990-06-15
IL78850A (en) 1989-02-28
MX165053B (es) 1992-10-20
AU589633B2 (en) 1989-10-19
KR860009135A (ko) 1986-12-20
CA1245862A (en) 1988-12-06
CN1009837B (zh) 1990-10-03
EP0204210B1 (en) 1990-06-06
JPH0328484B2 (es) 1991-04-19
BR8602264A (pt) 1987-01-21
KR910002950B1 (ko) 1991-05-11

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Legal Events

Date Code Title Description
IF00 In force as of 2000-06-30 in czech republic
MK4A Patent expired

Effective date: 20010520