PL2039785T3 - Ladle steel deoxidation method - Google Patents
Ladle steel deoxidation methodInfo
- Publication number
- PL2039785T3 PL2039785T3 PL06843948T PL06843948T PL2039785T3 PL 2039785 T3 PL2039785 T3 PL 2039785T3 PL 06843948 T PL06843948 T PL 06843948T PL 06843948 T PL06843948 T PL 06843948T PL 2039785 T3 PL2039785 T3 PL 2039785T3
- Authority
- PL
- Poland
- Prior art keywords
- desoxidant
- melt
- ladle
- lump
- deoxidation method
- 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
- C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
-
- 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
- C21C7/0068—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by introducing material into a current of streaming metal
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Multimedia (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)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
The invention relates to producing a high-quality low-carbon steel. The inventive ladle steel deoxidation method consists in introducing granulated or lump desoxidant, the density of which is less than the density of a melt in a ladle, in to a said melt. Said desoxidant is introduced during the melt pouring off a production unit into the ladle by means of a concentrated high-rate flow, the impulse of which allows the desoxidant to penetrate directly inside the melt. The desoxidant is introduced into the melt stream with the aid of a shotblast machine. The desoxidant is embodied in the form of a granulated or lump aluminium of a size ranging from 0,5 to 12,0 mm. The use of the invention makes it possible to reduce the desoxidant loss by two times, to increase the recovery thereof and to improve the metal quality.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06843948A EP2039785B1 (en) | 2006-06-30 | 2006-06-30 | Ladle steel deoxidation method |
PCT/RU2006/000344 WO2008002176A1 (en) | 2006-06-30 | 2006-06-30 | Ladle steel deoxidation method |
Publications (1)
Publication Number | Publication Date |
---|---|
PL2039785T3 true PL2039785T3 (en) | 2011-10-31 |
Family
ID=38845840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL06843948T PL2039785T3 (en) | 2006-06-30 | 2006-06-30 | Ladle steel deoxidation method |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2039785B1 (en) |
CN (1) | CN101522922B (en) |
AT (1) | ATE508210T1 (en) |
BR (1) | BRPI0621816B1 (en) |
DE (2) | DE602006021808D1 (en) |
DK (1) | DK2039785T3 (en) |
EA (1) | EA014276B1 (en) |
ES (1) | ES2328895T3 (en) |
PL (1) | PL2039785T3 (en) |
PT (1) | PT2039785E (en) |
SI (1) | SI2039785T1 (en) |
WO (1) | WO2008002176A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102031335A (en) * | 2010-11-01 | 2011-04-27 | 武汉科技大学 | Complex deoxidizer for smelting high heat input welded high-strength steel and using method thereof |
CN102146518A (en) * | 2011-04-02 | 2011-08-10 | 钢铁研究总院 | Refining agent for atmosphere protected electro-slag re-melting |
DE102015113241A1 (en) | 2015-08-11 | 2017-02-16 | Rhm Rohstoff-Handelsgesellschaft Mbh | Method for introducing additives into molten metals |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3511490A (en) * | 1967-02-24 | 1970-05-12 | Brown Fintube Co | Apparatus for introducing addition agent into molten steel |
SU827560A1 (en) * | 1978-08-25 | 1981-05-07 | Центральный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Черной Металлургии Им.И.П.Бардина | Method of steel production |
US4391319A (en) * | 1979-08-27 | 1983-07-05 | Keystone Consolidated Industries, Inc. | Apparatus for introducing elements into molten metal streams and casting in inert atmosphere |
US4389249A (en) * | 1982-04-22 | 1983-06-21 | Inland Steel Company | Method for adding ingredient to steel as shot |
US4863684A (en) * | 1989-01-13 | 1989-09-05 | Inland Steel Company | Method and apparatus for adding shot to molten steel |
CN1030532C (en) * | 1994-01-08 | 1995-12-20 | 中国冶金技术公司 | Iron and steel smelting process by using aluminium slag |
DE59707243D1 (en) * | 1997-03-17 | 2002-06-13 | Stein Ind Anlagen Inh Christel | METHOD FOR INPUTING GRANULAR SOLIDS IN METAL MELT |
-
2006
- 2006-06-30 EA EA200802345A patent/EA014276B1/en not_active IP Right Cessation
- 2006-06-30 CN CN2006800551775A patent/CN101522922B/en not_active Expired - Fee Related
- 2006-06-30 PL PL06843948T patent/PL2039785T3/en unknown
- 2006-06-30 WO PCT/RU2006/000344 patent/WO2008002176A1/en active Application Filing
- 2006-06-30 SI SI200631073T patent/SI2039785T1/en unknown
- 2006-06-30 EP EP06843948A patent/EP2039785B1/en active Active
- 2006-06-30 DE DE602006021808T patent/DE602006021808D1/en active Active
- 2006-06-30 DE DE06843948T patent/DE06843948T1/en active Pending
- 2006-06-30 PT PT06843948T patent/PT2039785E/en unknown
- 2006-06-30 DK DK06843948.8T patent/DK2039785T3/en active
- 2006-06-30 BR BRPI0621816-4A patent/BRPI0621816B1/en not_active IP Right Cessation
- 2006-06-30 AT AT06843948T patent/ATE508210T1/en active
- 2006-06-30 ES ES06843948T patent/ES2328895T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101522922B (en) | 2012-08-01 |
EA014276B1 (en) | 2010-10-29 |
BRPI0621816A2 (en) | 2012-09-18 |
ES2328895T3 (en) | 2011-10-18 |
PT2039785E (en) | 2011-08-17 |
CN101522922A (en) | 2009-09-02 |
DE06843948T1 (en) | 2009-12-17 |
SI2039785T1 (en) | 2011-09-30 |
EA200802345A1 (en) | 2009-04-28 |
EP2039785B1 (en) | 2011-05-04 |
DE602006021808D1 (en) | 2011-06-16 |
WO2008002176A1 (en) | 2008-01-03 |
BRPI0621816B1 (en) | 2015-06-02 |
EP2039785A4 (en) | 2009-10-21 |
DK2039785T3 (en) | 2011-08-15 |
ATE508210T1 (en) | 2011-05-15 |
EP2039785A1 (en) | 2009-03-25 |
ES2328895T1 (en) | 2009-11-19 |
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