ES422325A1 - Process for the elaboration of chrome steels - Google Patents
Process for the elaboration of chrome steelsInfo
- Publication number
- ES422325A1 ES422325A1 ES422325A ES422325A ES422325A1 ES 422325 A1 ES422325 A1 ES 422325A1 ES 422325 A ES422325 A ES 422325A ES 422325 A ES422325 A ES 422325A ES 422325 A1 ES422325 A1 ES 422325A1
- Authority
- ES
- Spain
- Prior art keywords
- metal
- bath
- oxidising gas
- carbon
- carbon content
- 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
Chrome steels, particularly stainless steels, are made by blowing an oxidising gas into an electric furnace containing a bath of molten metal containing chromium to decarburise the metal, the oxidising gas being blown in below the surface of the metal and passing through the bath from the bottom upwards. The or each jet of oxidising gas is peripherally surrounded at its point of entry into the metal by a fluid refractory-protectant such as fuel oil. The metal bath initially contains more than 0.7% carbon, and can contain more than 1.2% carbon. The absence of any upper limit on the initial carbon content allows the use of carburised ferro-alloys, and the refining of relatively high carbon content baths.
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 |
|---|---|
| ES422325A1 true ES422325A1 (en) | 1976-04-01 |
Family
ID=9114460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES422325A Expired ES422325A1 (en) | 1973-02-07 | 1974-01-16 | Process for the elaboration of 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 |
|---|---|---|---|---|
| FI780978A (en) * | 1977-03-31 | 1978-10-01 | Union Carbide Corp | FOERFARANDE FOER ATT FRAMSTAELLA FOERBAETTRADE GOETEN GENOM ATT RENA SMAELTEN MED TRYCKLUFT |
| 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 |
|---|---|
| DE2365258A1 (en) | 1974-08-15 |
| FR2216362A1 (en) | 1974-08-30 |
| AU6450374A (en) | 1975-07-17 |
| JPS49111811A (en) | 1974-10-24 |
| BE810675A (en) | 1974-08-06 |
| DD109664A5 (en) | 1974-11-12 |
| IN139479B (en) | 1976-06-26 |
| LU69322A1 (en) | 1974-05-29 |
| DE2365258B2 (en) | 1977-12-08 |
| GB1423634A (en) | 1976-02-04 |
| IT1009087B (en) | 1976-12-10 |
| CA1016754A (en) | 1977-09-06 |
| US3929458A (en) | 1975-12-30 |
| FR2216362B1 (en) | 1975-10-31 |
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