BR7405267A - Aperfeicoamento no processo para a descarburacao de aco em fusao - Google Patents
Aperfeicoamento no processo para a descarburacao de aco em fusaoInfo
- Publication number
- BR7405267A BR7405267A BR5267/74A BR526774A BR7405267A BR 7405267 A BR7405267 A BR 7405267A BR 5267/74 A BR5267/74 A BR 5267/74A BR 526774 A BR526774 A BR 526774A BR 7405267 A BR7405267 A BR 7405267A
- Authority
- BR
- Brazil
- Prior art keywords
- merger
- improvement
- discharging steel
- discharging
- steel
- Prior art date
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
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 |
---|---|
BR7405267A true BR7405267A (pt) | 1976-02-24 |
Family
ID=23477618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR5267/74A BR7405267A (pt) | 1973-06-28 | 1974-06-27 | Aperfeicoamento no processo para a descarburacao de aco em fusao |
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 |
---|---|---|---|---|
NZ186831A (en) * | 1977-03-31 | 1981-12-15 | Union Carbide Corp | Production of metal castings refining melt by using oxygen containing gas prior to casting |
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 |
US5139569A (en) * | 1989-04-13 | 1992-08-18 | Messer Griesheim | Process for the production of alloy steel grades using treatment gas consisting of CO2 |
DE3912061A1 (de) * | 1989-04-13 | 1990-10-18 | Messer Griesheim Gmbh | Verfahren zur herstellung von legierten stahlmarken |
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 |
ATE123816T1 (de) * | 1991-11-28 | 1995-06-15 | 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 BR BR5267/74A patent/BR7405267A/pt unknown
- 1974-06-27 FI FI1978/74A patent/FI197874A/fi unknown
- 1974-06-27 PL PL1974172235A patent/PL88825B1/pl unknown
- 1974-06-27 DD DD179518A patent/DD112468A5/xx unknown
- 1974-06-27 BE BE145977A patent/BE816970A/xx unknown
- 1974-06-27 JP JP49072891A patent/JPS5037611A/ja active Pending
- 1974-06-27 SE SE7408502A patent/SE7408502L/ unknown
- 1974-06-27 FR FR7422449A patent/FR2235198B1/fr not_active Expired
- 1974-06-27 NO NO742347A patent/NO742347L/no unknown
-
1977
- 1977-01-21 US US05/760,841 patent/USRE29584E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
SE7408502L (pt) | 1974-12-30 |
FR2235198B1 (pt) | 1978-01-20 |
FI197874A (pt) | 1974-12-29 |
DE2430975A1 (de) | 1975-01-09 |
NO742347L (pt) | 1975-01-27 |
PL88825B1 (pt) | 1976-09-30 |
AU6944374A (en) | 1975-12-04 |
JPS5037611A (pt) | 1975-04-08 |
IL45137A0 (en) | 1974-09-10 |
BE816970A (fr) | 1974-12-27 |
DD112468A5 (pt) | 1975-04-12 |
FR2235198A1 (pt) | 1975-01-24 |
IL45137A (en) | 1976-09-30 |
US3861888A (en) | 1975-01-21 |
USRE29584E (en) | 1978-03-21 |
DE2430975B2 (de) | 1975-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR7405267A (pt) | Aperfeicoamento no processo para a descarburacao de aco em fusao | |
BR7404644A (pt) | Aperfeicoamento no processo para recuperacao de acrilonitrila ou metacrilonitrila | |
BR7506516A (pt) | Processo para lixiviacao insitu de uranio | |
BR7410547D0 (pt) | Conjunto e processo para construcao incluindo blocos de intertravamento | |
BR7503167A (pt) | Processo aperfeicoado para a producao de aco | |
BR7403628D0 (pt) | Processo para a producao de aco silicio eletro-magnetico | |
BR7401239D0 (pt) | Processo de refinacao de aco | |
BR7403602D0 (pt) | Processo para obtencao de formaldeido | |
BR7402139D0 (pt) | Aperfeicoamento em processo de separacao por adsorcao de paraisomeros | |
BR7401384D0 (pt) | Processo para obtencao de alfa-aminoacil-3-halo-cefalosporinas | |
BR7401403D0 (pt) | Processo e aparelho para producao de aco | |
BR7305025D0 (pt) | Processo para alquilacao de isoparafina-olefina | |
BR7304377D0 (pt) | Processo para obtencao de ureia | |
BR7404894D0 (pt) | Processo continuo para fundicao de aco | |
BR7504966A (pt) | Processo para a ontencao de fenilmetil-carbinol | |
BR7406433D0 (pt) | Processo para a preparacao e n-n-di-alcoil-amidas | |
BR7308171D0 (pt) | Composicao termofixa em po e processo para preparar a mesma | |
BR7404766D0 (pt) | Anodo dimensionalmente estavel e processo e aparelho para formacao do mesmo | |
BR6914338D0 (pt) | Processo para formacao de estacas de concreto fundidas no local de emprego | |
BR7209132D0 (pt) | Processo para fazer lingotes de aco | |
BR7207801D0 (pt) | Processo para granular ureia | |
BR7407172D0 (pt) | Aperfeicoamento em processo para a preparacao de hidrocarbonetos alifaticos saturados policlorados | |
BR7407821D0 (pt) | Aperfeicoamento em processo para a fabricacao de pneumatico e em pneumatico | |
BR7403505D0 (pt) | Aperfeicoamento em processo para dessulfuracao catalitica | |
IT982575B (it) | Processo per fosfatare l acciato |