JPS6428318A - Aod furnace - Google Patents
Aod furnaceInfo
- Publication number
- JPS6428318A JPS6428318A JP18123287A JP18123287A JPS6428318A JP S6428318 A JPS6428318 A JP S6428318A JP 18123287 A JP18123287 A JP 18123287A JP 18123287 A JP18123287 A JP 18123287A JP S6428318 A JPS6428318 A JP S6428318A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- steel
- plural
- molten steel
- refining
- 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.)
- Granted
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To eliminate dead zone of convection of the molten steel and to reduce spattering of the molten steel with splash by shifting a point of intersection of injecting gas from the plural tuyeres for blowing refining gas in an AOD furnace far a way from the furnace center point. CONSTITUTION:In the AOD furnace for decarbonized-refining a stainless steel with a converter, by blowing inert gas of Ar, etc., together with O2 gas from plural tuyeres, the partial pressure of CO gas generated by oxidizing the contained C and decarbonizing is reduced with the Ar gas. In the case of decarbonized-refining only C without oxidizing Cr, the thickness t1 of the refractory bricks 5a at the tuyere side composing of plural tuyeres is to be 550mm and the thickness t2 of the refractory bricks 5b at the reverse steel tapping side is to be 330mm. Further, the point of intersection P of the injecting gas from the plural tuyere is positioned to come to the steel tapping side from the center C of the furnace body by 50-250mm. The dead zone of the converter of the molten steel and the splash of the molten steel caused by gas blowing are eliminated and the molten stainless steel is refined by decarbonizing without any oxidizing loss of the Cr at good yield of the raw material for a short time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181232A JP2551013B2 (en) | 1987-07-22 | 1987-07-22 | AOD furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181232A JP2551013B2 (en) | 1987-07-22 | 1987-07-22 | AOD furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6428318A true JPS6428318A (en) | 1989-01-30 |
JP2551013B2 JP2551013B2 (en) | 1996-11-06 |
Family
ID=16097112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62181232A Expired - Lifetime JP2551013B2 (en) | 1987-07-22 | 1987-07-22 | AOD furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2551013B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03103245U (en) * | 1990-02-05 | 1991-10-28 |
-
1987
- 1987-07-22 JP JP62181232A patent/JP2551013B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03103245U (en) * | 1990-02-05 | 1991-10-28 |
Also Published As
Publication number | Publication date |
---|---|
JP2551013B2 (en) | 1996-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69626760D1 (en) | Process for producing stainless steels using chrome iron ore | |
US4518422B1 (en) | Process and apparatus for refining steel in a metallurgical vessel | |
JPS6428318A (en) | Aod furnace | |
PT72324B (en) | Process for the refining of a metal bath by means of a conver- ter having a top oxygen jet and converter for its accomplish- ment | |
JPS55158213A (en) | Pefining method of chromium containing steel | |
US3929458A (en) | Process for the elaboration of chrome steels | |
US3826647A (en) | Method of obtaining low-phosphorus contents in medium-and high-carbon steels in a bottom-blown oxygen steelmaking furnace | |
US4141723A (en) | Process for producing stainless steel | |
JPS57158316A (en) | Production of al-containing steel | |
JPS55115914A (en) | Refining method of high chromium steel | |
JPS56130416A (en) | Steel making method | |
JPS57110612A (en) | Vacuum refining method of low carbon, low nitrogen and high chromium steel | |
JPS6468415A (en) | Production of molten stainless steel by smelting reduction | |
JPS5623213A (en) | Melting method of low phosphorus steel in oxygen top blowing steel making method | |
Kutscher et al. | Method for the Production of Quality Steels | |
Pickering | The Origin of Nonmetallic Inclusions During Steelmaking | |
JPS55107718A (en) | Production of molten steel | |
Fujii | Steelmaking--Present Situation and Future of Steelmaking Technologies. Converter Processes | |
Chakrabarti | Optimisation of Process Parameters of Secondary Refining Including Vacuum Degassing for Success in Achieving Quality in Continuously Cast Steel and Steel Made via Ingot Route | |
JPS648214A (en) | Steel making method in converter | |
Itoh | Top and Bottom Blowing Technique of LD Converter | |
Gavrilenko et al. | Production of Corrosion-Resisting Steel in 100 t Electric Furnaces by the Single Slag Process | |
Nakashima et al. | Process for Refining Molten Steel | |
Yamada et al. | Steel Melting and Secondary-Refining Method | |
Nemchenko et al. | Melting Transformer Steel in 160 t Basic Oxygen Furnaces With Porous Bottom |