ES2008814A6 - Process for oxidizing treatment of steel - Google Patents
Process for oxidizing treatment of steelInfo
- Publication number
- ES2008814A6 ES2008814A6 ES8802759A ES8802759A ES2008814A6 ES 2008814 A6 ES2008814 A6 ES 2008814A6 ES 8802759 A ES8802759 A ES 8802759A ES 8802759 A ES8802759 A ES 8802759A ES 2008814 A6 ES2008814 A6 ES 2008814A6
- Authority
- ES
- Spain
- Prior art keywords
- metal bath
- oxidizing treatment
- steel
- gas
- oxygen
- 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.)
- Expired
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
- C21C5/34—Blowing through the bath
-
- 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
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)
- Coating With Molten Metal (AREA)
Abstract
In a process for oxidizing treatment, preferably decarbonization of unalloyed and alloyed steel by treating the metal bath with oxygen and inert gas in a metallurgical vessel, the gas is introduced into the metal bath at points located below the surface of the bath. In order to carry out the process simply and economically, the oxygen is introduced into the metal bath in a first region and the inert gas in a second region and the gas is introduced into each of the two regions in such a way that a flow movement is produced in the metal bath.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE1987/000514 WO1989004377A1 (en) | 1987-11-12 | 1987-11-12 | Process for oxidizing treatment of steel |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2008814A6 true ES2008814A6 (en) | 1989-08-01 |
Family
ID=6803568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8802759A Expired ES2008814A6 (en) | 1987-11-12 | 1988-09-08 | Process for oxidizing treatment of steel |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES2008814A6 (en) |
WO (1) | WO1989004377A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2273393A1 (en) * | 1999-05-31 | 2000-11-30 | Mcmaster University | Ladle for enhanced steel vacuum decarburization |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE794178A (en) * | 1972-02-02 | 1973-05-16 | Centre Rech Metallurgique | PROCESS FOR TREATMENT OF FERROUS MACHINERY |
FR2160356A1 (en) * | 1972-06-12 | 1973-06-29 | Air Liquide | Decarburising chromium contg ferrous melts - avoiding oxidation and loss of the chromium |
FR2258454A1 (en) * | 1974-01-23 | 1975-08-18 | Creusot Loire | Oxygen converter for steel mfr - using two groups of tuyeres so a second gas can be added during de-phosphorisation |
US4472195A (en) * | 1983-08-15 | 1984-09-18 | Olin Corporation | Process for decarburizing alloy melts |
US4529442A (en) * | 1984-04-26 | 1985-07-16 | Allegheny Ludlum Steel Corporation | Method for producing steel in a top oxygen blown vessel |
-
1987
- 1987-11-12 WO PCT/DE1987/000514 patent/WO1989004377A1/en unknown
-
1988
- 1988-09-08 ES ES8802759A patent/ES2008814A6/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
WO1989004377A1 (en) | 1989-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20010201 |