FI804007L - Foerfarande foer att foerhindra att slaggmetall vaeller upp vid pneumatisk under ytan skeende raffinering av staol - Google Patents
Foerfarande foer att foerhindra att slaggmetall vaeller upp vid pneumatisk under ytan skeende raffinering av staolInfo
- Publication number
- FI804007L FI804007L FI804007A FI804007A FI804007L FI 804007 L FI804007 L FI 804007L FI 804007 A FI804007 A FI 804007A FI 804007 A FI804007 A FI 804007A FI 804007 L FI804007 L FI 804007L
- Authority
- FI
- Finland
- Prior art keywords
- att
- vaeller
- slaggmetall
- skeende
- raffinering
- 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
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
-
- 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
-
- 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
- C21C7/06—Deoxidising, e.g. killing
-
- 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
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)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/107,535 US4278464A (en) | 1979-12-27 | 1979-12-27 | Method for preventing slopping during subsurface pneumatic refining of steel |
US10753579 | 1979-12-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI804007L true FI804007L (fi) | 1981-06-28 |
FI67094B FI67094B (fi) | 1984-09-28 |
FI67094C FI67094C (fi) | 1985-01-10 |
Family
ID=22317095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI804007A FI67094C (fi) | 1979-12-27 | 1980-12-22 | Foerfarande foer att foerhindra att slaggmetall vaeller upp vi pneumatisk under ytan skeende raffinering av staol |
Country Status (15)
Country | Link |
---|---|
US (1) | US4278464A (fi) |
EP (1) | EP0033780B2 (fi) |
JP (1) | JPS6014812B2 (fi) |
KR (1) | KR850000927B1 (fi) |
BR (1) | BR8008338A (fi) |
CA (1) | CA1157276A (fi) |
DE (1) | DE3071177D1 (fi) |
DK (1) | DK552980A (fi) |
ES (1) | ES498039A0 (fi) |
FI (1) | FI67094C (fi) |
IN (1) | IN155179B (fi) |
NO (1) | NO153861C (fi) |
SU (1) | SU1114343A3 (fi) |
YU (1) | YU41453B (fi) |
ZA (1) | ZA807929B (fi) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4436553A (en) | 1982-01-22 | 1984-03-13 | Union Carbide Corporation | Process to produce low hydrogen steel |
US4451288A (en) * | 1982-06-29 | 1984-05-29 | Union Carbide Corporation | Method for producing low hydrogen content in steels produced by subsurface pneumatic refining |
US4477278A (en) * | 1983-01-06 | 1984-10-16 | Union Carbide Corporation | Steelmaking process using calcium carbide as fuel |
US4488903A (en) * | 1984-03-14 | 1984-12-18 | Union Carbide Corporation | Rapid decarburization steelmaking process |
US4551175A (en) * | 1984-04-17 | 1985-11-05 | Union Carbide Corporation | Method for controlling slag chemistry in a refining vessel |
US4761178A (en) * | 1987-08-24 | 1988-08-02 | Bethlehem Steel Corporation | Process for heating molten steel contained in a ladle |
IN172394B (fi) * | 1988-07-22 | 1993-07-17 | Boest Alpine Stahl Donawitz Ge |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3107995A (en) * | 1961-04-06 | 1963-10-22 | Katakura Sampei | Refining material for iron and steel and method of producing same |
US3702243A (en) * | 1969-04-15 | 1972-11-07 | Nat Steel Corp | Method of preparing deoxidized steel |
US3960546A (en) * | 1974-05-22 | 1976-06-01 | United States Steel Corporation | Method for eliminating nose-skulls from steelmaking vessels |
US4187102A (en) * | 1978-08-24 | 1980-02-05 | Union Carbide Corporation | Method for controlling the temperature of the melt during pneumatic refining of steel |
US4210442A (en) * | 1979-02-07 | 1980-07-01 | Union Carbide Corporation | Argon in the basic oxygen process to control slopping |
-
1979
- 1979-12-27 US US06/107,535 patent/US4278464A/en not_active Expired - Lifetime
-
1980
- 1980-12-10 IN IN886/DEL/80A patent/IN155179B/en unknown
- 1980-12-11 CA CA000366632A patent/CA1157276A/en not_active Expired
- 1980-12-18 ZA ZA00807929A patent/ZA807929B/xx unknown
- 1980-12-19 JP JP55179111A patent/JPS6014812B2/ja not_active Expired
- 1980-12-19 BR BR8008338A patent/BR8008338A/pt not_active IP Right Cessation
- 1980-12-22 NO NO803907A patent/NO153861C/no unknown
- 1980-12-22 SU SU803221903A patent/SU1114343A3/ru active
- 1980-12-22 FI FI804007A patent/FI67094C/fi not_active IP Right Cessation
- 1980-12-22 ES ES498039A patent/ES498039A0/es active Granted
- 1980-12-23 DK DK552980A patent/DK552980A/da not_active Application Discontinuation
- 1980-12-23 DE DE8080108124T patent/DE3071177D1/de not_active Expired
- 1980-12-23 YU YU3254/80A patent/YU41453B/xx unknown
- 1980-12-23 EP EP80108124A patent/EP0033780B2/en not_active Expired - Lifetime
-
1981
- 1981-03-21 KR KR1019810000943A patent/KR850000927B1/ko active
Also Published As
Publication number | Publication date |
---|---|
DE3071177D1 (en) | 1985-11-14 |
NO153861C (no) | 1986-06-04 |
FI67094B (fi) | 1984-09-28 |
SU1114343A3 (ru) | 1984-09-15 |
NO153861B (no) | 1986-02-24 |
FI67094C (fi) | 1985-01-10 |
IN155179B (fi) | 1985-01-12 |
KR850000927B1 (ko) | 1985-06-28 |
ES8202593A1 (es) | 1982-02-01 |
EP0033780B2 (en) | 1990-11-28 |
YU41453B (en) | 1987-06-30 |
US4278464A (en) | 1981-07-14 |
EP0033780B1 (en) | 1985-10-09 |
CA1157276A (en) | 1983-11-22 |
JPS56127726A (en) | 1981-10-06 |
KR830005374A (ko) | 1983-08-13 |
EP0033780A1 (en) | 1981-08-19 |
ES498039A0 (es) | 1982-02-01 |
DK552980A (da) | 1981-06-28 |
JPS6014812B2 (ja) | 1985-04-16 |
BR8008338A (pt) | 1981-07-07 |
YU325480A (en) | 1983-02-28 |
NO803907L (no) | 1981-06-29 |
ZA807929B (en) | 1982-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: UNION CARBIDE CORPORATION |