NO742347L - - Google Patents
Info
- Publication number
- NO742347L NO742347L NO742347A NO742347A NO742347L NO 742347 L NO742347 L NO 742347L NO 742347 A NO742347 A NO 742347A NO 742347 A NO742347 A NO 742347A NO 742347 L NO742347 L NO 742347L
- Authority
- NO
- Norway
- Prior art keywords
- decarburization
- melt
- cog
- flow rate
- blowing
- Prior art date
Links
- 238000005261 decarburization Methods 0.000 claims description 62
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 38
- 229910052799 carbon Inorganic materials 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 34
- 238000007664 blowing Methods 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- 239000001301 oxygen Substances 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 229910052786 argon Inorganic materials 0.000 claims description 19
- 239000000155 melt Substances 0.000 claims description 16
- 239000000161 steel melt Substances 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 239000011651 chromium Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910052743 krypton Inorganic materials 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 229910052724 xenon Inorganic materials 0.000 claims description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 19
- 238000007670 refining Methods 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 241001062472 Stokellia anisodon Species 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- MEUAVGJWGDPTLF-UHFFFAOYSA-N 4-(5-benzenesulfonylamino-1-methyl-1h-benzoimidazol-2-ylmethyl)-benzamidine Chemical compound N=1C2=CC(NS(=O)(=O)C=3C=CC=CC=3)=CC=C2N(C)C=1CC1=CC=C(C(N)=N)C=C1 MEUAVGJWGDPTLF-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminum metals Chemical class 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374635A US3861888A (en) | 1973-06-28 | 1973-06-28 | Use of CO{HD 2 {B in argon-oxygen refining of molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO742347L true NO742347L (pt) | 1975-01-27 |
Family
ID=23477618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO742347A NO742347L (pt) | 1973-06-28 | 1974-06-27 |
Country Status (12)
| Country | Link |
|---|---|
| US (2) | US3861888A (pt) |
| JP (1) | JPS5037611A (pt) |
| AU (1) | AU6944374A (pt) |
| BE (1) | BE816970A (pt) |
| BR (1) | BR7405267A (pt) |
| DD (1) | DD112468A5 (pt) |
| FI (1) | FI197874A (pt) |
| FR (1) | FR2235198B1 (pt) |
| IL (1) | IL45137A (pt) |
| NO (1) | NO742347L (pt) |
| PL (1) | PL88825B1 (pt) |
| SE (1) | SE7408502L (pt) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR7801963A (pt) * | 1977-03-31 | 1978-10-24 | Union Carbide Corp | Processo para a producao de pecas fundidas de metal como produto final,tendo qualidade de superficie e qualidade interna aperfeicoadas |
| US4174212A (en) * | 1978-03-10 | 1979-11-13 | A. Finkl & Sons Co. | Method for the refining of steel |
| DE2820555A1 (de) * | 1978-05-11 | 1979-11-15 | Basf Ag | Verfahren zur behandlung von roheisen- und stahlschmelzen bzw. legierungen |
| US4490172A (en) * | 1979-06-29 | 1984-12-25 | Moore William H | Method of melting and refining steel and other ferrous alloys |
| US4409028A (en) * | 1979-10-24 | 1983-10-11 | Moore William H | Process for producing cast iron |
| US4260415A (en) * | 1979-12-12 | 1981-04-07 | Allegheny Ludlum Steel Corporation | Decarburizing molten metal |
| US4436553A (en) | 1982-01-22 | 1984-03-13 | Union Carbide Corporation | Process to produce low hydrogen steel |
| FR2560891B1 (fr) * | 1984-03-09 | 1989-10-20 | Air Liquide | Procede d'affinage de la fonte |
| US4615730A (en) | 1985-04-30 | 1986-10-07 | Allegheny Ludlum Steel Corporation | Method for refining molten metal bath to control nitrogen |
| US4746361A (en) * | 1987-04-03 | 1988-05-24 | Inland Steel Company | Controlling dissolved oxygen content in molten steel |
| DE3912061A1 (de) * | 1989-04-13 | 1990-10-18 | Messer Griesheim Gmbh | Verfahren zur herstellung von legierten stahlmarken |
| US5139569A (en) * | 1989-04-13 | 1992-08-18 | Messer Griesheim | Process for the production of alloy steel grades using treatment gas consisting of CO2 |
| US5190577A (en) * | 1990-12-11 | 1993-03-02 | Liquid Air Corporation | Replacement of argon with carbon dioxide in a reactor containing molten metal for the purpose of refining molten metal |
| EP0544967B1 (de) * | 1991-11-28 | 1995-06-14 | Carbagas | Verfahren zur Unterdrückung von Staub und Rauch bei der Elektrostahlherstellung |
| US5417739A (en) * | 1993-12-30 | 1995-05-23 | Ltv Steel Company, Inc. | Method of making high nitrogen content steel |
| US5865876A (en) * | 1995-06-07 | 1999-02-02 | Ltv Steel Company, Inc. | Multipurpose lance |
| US5830259A (en) * | 1996-06-25 | 1998-11-03 | Ltv Steel Company, Inc. | Preventing skull accumulation on a steelmaking lance |
| US5885323A (en) * | 1997-04-25 | 1999-03-23 | Ltv Steel Company, Inc. | Foamy slag process using multi-circuit lance |
| CN102146499A (zh) * | 2010-02-05 | 2011-08-10 | 鞍钢股份有限公司 | 一种aod喷吹co2生产不锈钢的冶炼方法 |
| US9045805B2 (en) | 2013-03-12 | 2015-06-02 | Ati Properties, Inc. | Alloy refining methods |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2855293A (en) * | 1955-03-21 | 1958-10-07 | Air Liquide | Method and apparatus for treating molten metal with oxygen |
| US3252790A (en) * | 1956-06-27 | 1966-05-24 | Union Carbide Corp | Preparation of metals and alloys |
| US3003865A (en) * | 1959-09-10 | 1961-10-10 | Cameron Iron Works Inc | Decarburizing process for alloy steels containing chromium |
| BE610265A (pt) * | 1960-11-18 | |||
| US3397878A (en) * | 1965-11-19 | 1968-08-20 | Union Carbide Corp | Under-bath tuyere |
| GB1253581A (en) * | 1968-02-24 | 1971-11-17 | Maximilianshuette Eisenwerk | Improvements in processes and apparatus for making steel |
| BE755456A (fr) * | 1969-08-29 | 1971-03-01 | Allegheny Ludlum Ind Inc | Decarburation de l'acier fondu |
| US3728101A (en) * | 1970-11-09 | 1973-04-17 | Armco Steel Corp | Process for making stainless steel |
| FR2186974A5 (en) * | 1972-05-31 | 1974-01-11 | Air Liquide | Decarburisation of iron and steel alloys - contg chromium by blowing with oxygen, carbon dioxide and a rare gas |
-
1973
- 1973-06-28 US US374635A patent/US3861888A/en not_active Expired - Lifetime
-
1974
- 1974-05-28 AU AU69443/74A patent/AU6944374A/en not_active Expired
- 1974-06-27 IL IL45137A patent/IL45137A/xx unknown
- 1974-06-27 JP JP49072891A patent/JPS5037611A/ja active Pending
- 1974-06-27 NO NO742347A patent/NO742347L/no unknown
- 1974-06-27 BE BE145977A patent/BE816970A/xx unknown
- 1974-06-27 PL PL1974172235A patent/PL88825B1/pl unknown
- 1974-06-27 FI FI1978/74A patent/FI197874A/fi unknown
- 1974-06-27 DD DD179518A patent/DD112468A5/xx unknown
- 1974-06-27 FR FR7422449A patent/FR2235198B1/fr not_active Expired
- 1974-06-27 SE SE7408502A patent/SE7408502L/ unknown
- 1974-06-27 BR BR5267/74A patent/BR7405267A/pt unknown
-
1977
- 1977-01-21 US US05/760,841 patent/USRE29584E/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2235198B1 (pt) | 1978-01-20 |
| SE7408502L (pt) | 1974-12-30 |
| AU6944374A (en) | 1975-12-04 |
| IL45137A0 (en) | 1974-09-10 |
| BE816970A (fr) | 1974-12-27 |
| DE2430975B2 (de) | 1975-09-04 |
| PL88825B1 (pt) | 1976-09-30 |
| JPS5037611A (pt) | 1975-04-08 |
| IL45137A (en) | 1976-09-30 |
| FI197874A (pt) | 1974-12-29 |
| BR7405267A (pt) | 1976-02-24 |
| DE2430975A1 (de) | 1975-01-09 |
| US3861888A (en) | 1975-01-21 |
| DD112468A5 (pt) | 1975-04-12 |
| FR2235198A1 (pt) | 1975-01-24 |
| USRE29584E (en) | 1978-03-21 |
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