JPS6439314A - Method for refining steel - Google Patents

Method for refining steel

Info

Publication number
JPS6439314A
JPS6439314A JP19422787A JP19422787A JPS6439314A JP S6439314 A JPS6439314 A JP S6439314A JP 19422787 A JP19422787 A JP 19422787A JP 19422787 A JP19422787 A JP 19422787A JP S6439314 A JPS6439314 A JP S6439314A
Authority
JP
Japan
Prior art keywords
oxygen source
powdered solid
solid oxygen
molten steel
gas
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP19422787A
Other languages
Japanese (ja)
Inventor
Senji Fujita
Tetsuo Okamoto
Atsushi Ishii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP19422787A priority Critical patent/JPS6439314A/en
Publication of JPS6439314A publication Critical patent/JPS6439314A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE:To shorten decarburizing time and also to control the amount of oxidation of valuable metals such as Cr, by feeding a powdered solid oxygen source on a carrier-gas stream to a burner while blowing gases into molten steel and agitating the molten steel so as to blow the above powdered solid oxygen source against a bath surface together with flames. CONSTITUTION:An oxygen gas and an Ar gas are blow through tuyeres in the bottom into molten steel in a furnace, and the molten metal is agitated. Simultaneously, a powdered solid oxygen source, such as chromite sand and mill scale, is fed on a carrier-gas stream to a burner provided to the upper part of the furnace, by which the powdered solid oxygen source is blown together with flames against the steel-bath surface. By this method, decarburizing time can be shortened and the additive quantity of a reducing agent for re-reducing valuable metals can be reduced.
JP19422787A 1987-08-03 1987-08-03 Method for refining steel Pending JPS6439314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19422787A JPS6439314A (en) 1987-08-03 1987-08-03 Method for refining steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19422787A JPS6439314A (en) 1987-08-03 1987-08-03 Method for refining steel

Publications (1)

Publication Number Publication Date
JPS6439314A true JPS6439314A (en) 1989-02-09

Family

ID=16321073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19422787A Pending JPS6439314A (en) 1987-08-03 1987-08-03 Method for refining steel

Country Status (1)

Country Link
JP (1) JPS6439314A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010522824A (en) * 2007-03-29 2010-07-08 エム．カー．エヌ．テクノロジース ゲゼルシャフト ミット ベシュレンクテル ハフツング Melt metallurgy process for the production of metal melts and transition metal-containing additive materials used therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136613A (en) * 1984-12-06 1986-06-24 Nippon Steel Corp Vacuum decarburization method of molten steel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136613A (en) * 1984-12-06 1986-06-24 Nippon Steel Corp Vacuum decarburization method of molten steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010522824A (en) * 2007-03-29 2010-07-08 エム．カー．エヌ．テクノロジース ゲゼルシャフト ミット ベシュレンクテル ハフツング Melt metallurgy process for the production of metal melts and transition metal-containing additive materials used therefor

Similar Documents

Publication Publication Date Title
EP0318896A3 (en) Method for smelting reduction of iron ore and apparatus therefor
KR970043113A (en) How to use chromite ore directly in the manufacture of stainless steel
DE3269731D1 (en) Method and apparatus for the direct production of liquid iron
JPS54158320A (en) Refining method for high chromium steel
EP0328677B1 (en) PROCESS FOR MELT REDUCTION OF Cr STARTING MATERIAL AND MELT REDUCTION FURNACE
JPS6439314A (en) Method for refining steel
ES409322A1 (en) Method and apparatus for the refining of steel
JPS6425938A (en) Refining method for molten steel by arc furnace
JPS6325049B2 (en)
AU727872B2 (en) Basic oxygen process with iron oxide pellet addition
JPS6439315A (en) Steel refining method
KR880014113A (en) Steelmaking Method through Reduction Smelting
GB759224A (en) Method of refining iron-carbon alloys
JPS5743919A (en) Method for blow refining in top and/or bottom-blown converter
CA1202181A (en) Process to produce low hydrogen steel
JPS6468415A (en) Production of molten stainless steel by smelting reduction
GB1468751A (en) Process and apparatus for steel production by the melting of fe rrous material such as scrap
JPS5743920A (en) Method for blow refining in bottom-blown converter
SU1620490A1 (en) Method of producing molten metal in blast furnace
RU2278169C2 (en) Method for production of chromium-manganese stainless steel
SU729251A1 (en) Method of steel casting in hearth steel-melting set
KR860003353A (en) Method of refining molten steel by arc processing
US3061299A (en) Apparatus for the production in a converter of steel which may have a high carbon content
GB817783A (en) Treatment of molten ferrous material
SU988879A1 (en) Method for oxygen blasting of metal