ES8507186A1 - prodn. of high chromium-low carbon steel - Google Patents
prodn. of high chromium-low carbon steelInfo
- Publication number
- ES8507186A1 ES8507186A1 ES525735A ES525735A ES8507186A1 ES 8507186 A1 ES8507186 A1 ES 8507186A1 ES 525735 A ES525735 A ES 525735A ES 525735 A ES525735 A ES 525735A ES 8507186 A1 ES8507186 A1 ES 8507186A1
- Authority
- ES
- Spain
- Prior art keywords
- argon
- ratio
- oxygen
- low carbon
- high chromium
- 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
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
High chromium, low carbon, steel is produced from molten steel containing 0.8 to 1.0% C, by blowing with an argon/oxygen mixture, through an inserted lance. The lance comprises two concentric pipes. Initially a hydrocarbon fluid, e.g. natural gas, is blown through the outer pipe, and argon/oxygen, in the ratio 1:3 through the inner. Blowing continues until the C content is reduced to 0.02 to 0.03%, the argon/oxygen ratio being progressively increased to 3:1. The ratio of the mixture to the hydrocarbon fluid is held at about 10:1. - method is cheaper than either using electric furnaces conventionally or the alternative AOD method. The injection tuyere is cooled by the natural gas flow, and is mounted on a water-cooled holder, so it has a good service life. It can be adapted to a variety of furnaces and for injection of other substances.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES525735A ES8507186A1 (en) | 1983-09-19 | 1983-09-19 | prodn. of high chromium-low carbon steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES525735A ES8507186A1 (en) | 1983-09-19 | 1983-09-19 | prodn. of high chromium-low carbon steel |
Publications (2)
Publication Number | Publication Date |
---|---|
ES525735A0 ES525735A0 (en) | 1985-08-16 |
ES8507186A1 true ES8507186A1 (en) | 1985-08-16 |
Family
ID=8486235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES525735A Expired ES8507186A1 (en) | 1983-09-19 | 1983-09-19 | prodn. of high chromium-low carbon steel |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES8507186A1 (en) |
-
1983
- 1983-09-19 ES ES525735A patent/ES8507186A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES525735A0 (en) | 1985-08-16 |
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