GB1423634A - Method of producing chrome steels - Google Patents
Method of producing chrome steelsInfo
- Publication number
- GB1423634A GB1423634A GB64174A GB64174A GB1423634A GB 1423634 A GB1423634 A GB 1423634A GB 64174 A GB64174 A GB 64174A GB 64174 A GB64174 A GB 64174A GB 1423634 A GB1423634 A GB 1423634A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jets
- oxidizing gas
- protectant
- steam
- atomized water
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5264—Manufacture of alloyed steels including ferro-alloys
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
1423634 Chrome steel CREUSOT-LOIRE 7 Jan 1974 [7 Feb 1973] 00641/74 Heading C7D In the manufacture of chrome steel, e.g. stainless steel, one or more jets of oxidizing gas surrounded by a fluid protectant are introduced below the surface of the bath. The oxidizing gas may be pure O 2 , 02-enriched air, or O 2 with a small quantity, e.g. 5% of Ar, N2, steam or atomized water. The protectant may be fuel oil, and the jets may be introduced through holes in walls or floor of the furnace, e.g. an electric arc furnace. When scorification of the Cr begins, the jet may comprise O 2 with 50%-70% Ar, N 2 , steam or atomized water, which acts as a diluent for the CO produced. A lance supplying the oxidizing gas to the surface may be employed in addition to the submerged jets.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7304266A FR2216362B1 (en) | 1973-02-07 | 1973-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1423634A true GB1423634A (en) | 1976-02-04 |
Family
ID=9114460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB64174A Expired GB1423634A (en) | 1973-02-07 | 1974-01-07 | Method of producing chrome steels |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3929458A (en) |
| JP (1) | JPS49111811A (en) |
| AU (1) | AU6450374A (en) |
| BE (1) | BE810675A (en) |
| CA (1) | CA1016754A (en) |
| DD (1) | DD109664A5 (en) |
| DE (1) | DE2365258B2 (en) |
| ES (1) | ES422325A1 (en) |
| FR (1) | FR2216362B1 (en) |
| GB (1) | GB1423634A (en) |
| IN (1) | IN139479B (en) |
| IT (1) | IT1009087B (en) |
| LU (1) | LU69322A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES468347A1 (en) * | 1977-03-31 | 1978-12-01 | Union Carbide Corp | Manufacture of metal castings |
| FR2448572B1 (en) * | 1979-02-09 | 1985-10-18 | Pennsylvania Engineering Corp | PROCESS FOR OBTAINING LOW-CARBON STEEL WITH THE OXYGEN-ARGON CONVERTER |
| US4405365A (en) * | 1982-08-30 | 1983-09-20 | Pennsylvania Engineering Corporation | Method for the fabrication of special steels in metallurgical vessels |
| DE19621143A1 (en) * | 1996-01-31 | 1997-08-07 | Mannesmann Ag | Process for the production of stainless steels |
| CN114807508A (en) * | 2022-06-06 | 2022-07-29 | 新疆伊犁钢铁有限责任公司 | Method for reducing alloy consumption in ladle behind converter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR996186A (en) * | 1949-08-16 | 1951-12-14 | Commentry Fourchambault & Deca | production of metals and alloys at very high temperature and products obtained |
| US3336132A (en) * | 1964-03-09 | 1967-08-15 | Crucible Steel Co America | Stainless steel manufacturing process and equipment |
| GB1253581A (en) * | 1968-02-24 | 1971-11-17 | Maximilianshuette Eisenwerk | Improvements in processes and apparatus for making steel |
| DE1916945C3 (en) * | 1969-04-02 | 1980-04-17 | Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg | Use of the jacket gas process for refining pig iron to steel |
| DE2007373B2 (en) * | 1970-02-18 | 1973-05-03 | Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg | PROCESS AND CONVERTER FOR MANUFACTURING FERRITIC CHROME STEEL |
| US3708599A (en) * | 1971-04-22 | 1973-01-02 | Thermal Transfer Corp | High temperature apparatus |
-
1973
- 1973-02-07 FR FR7304266A patent/FR2216362B1/fr not_active Expired
- 1973-12-31 DE DE19732365258 patent/DE2365258B2/en not_active Ceased
-
1974
- 1974-01-07 GB GB64174A patent/GB1423634A/en not_active Expired
- 1974-01-08 IT IT67031/74A patent/IT1009087B/en active
- 1974-01-10 US US432309A patent/US3929458A/en not_active Expired - Lifetime
- 1974-01-11 JP JP49006943A patent/JPS49111811A/ja active Pending
- 1974-01-15 IN IN96/CAL/74A patent/IN139479B/en unknown
- 1974-01-15 AU AU64503/74A patent/AU6450374A/en not_active Expired
- 1974-01-16 ES ES422325A patent/ES422325A1/en not_active Expired
- 1974-02-05 LU LU69322A patent/LU69322A1/xx unknown
- 1974-02-05 DD DD176384A patent/DD109664A5/en unknown
- 1974-02-06 CA CA191,881A patent/CA1016754A/en not_active Expired
- 1974-02-06 BE BE140606A patent/BE810675A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE810675A (en) | 1974-08-06 |
| ES422325A1 (en) | 1976-04-01 |
| US3929458A (en) | 1975-12-30 |
| IT1009087B (en) | 1976-12-10 |
| FR2216362A1 (en) | 1974-08-30 |
| FR2216362B1 (en) | 1975-10-31 |
| AU6450374A (en) | 1975-07-17 |
| DD109664A5 (en) | 1974-11-12 |
| DE2365258B2 (en) | 1977-12-08 |
| LU69322A1 (en) | 1974-05-29 |
| JPS49111811A (en) | 1974-10-24 |
| IN139479B (en) | 1976-06-26 |
| DE2365258A1 (en) | 1974-08-15 |
| CA1016754A (en) | 1977-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414E | Application relinquished (sect. 14/1949) | ||
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |