PT2039785E - Ladle steel deoxidation method - Google Patents
Ladle steel deoxidation method Download PDFInfo
- Publication number
- PT2039785E PT2039785E PT06843948T PT06843948T PT2039785E PT 2039785 E PT2039785 E PT 2039785E PT 06843948 T PT06843948 T PT 06843948T PT 06843948 T PT06843948 T PT 06843948T PT 2039785 E PT2039785 E PT 2039785E
- Authority
- PT
- Portugal
- 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)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Anti-Oxidant Or Stabilizer Compositions (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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2006/000344 WO2008002176A1 (en) | 2006-06-30 | 2006-06-30 | Ladle steel deoxidation method |
Publications (1)
Publication Number | Publication Date |
---|---|
PT2039785E true PT2039785E (en) | 2011-08-17 |
Family
ID=38845840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT06843948T PT2039785E (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 |
CA2283903C (en) * | 1997-03-17 | 2007-01-02 | Stein - Industrie-Anlagen Inh. Christel Stein | Method for feeding granular solids into metal melts |
-
2006
- 2006-06-30 CN CN2006800551775A patent/CN101522922B/en not_active Expired - Fee Related
- 2006-06-30 BR BRPI0621816-4A patent/BRPI0621816B1/en not_active IP Right Cessation
- 2006-06-30 EA EA200802345A patent/EA014276B1/en not_active IP Right Cessation
- 2006-06-30 ES ES06843948T patent/ES2328895T3/en active Active
- 2006-06-30 DK DK06843948.8T patent/DK2039785T3/en active
- 2006-06-30 PT PT06843948T patent/PT2039785E/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 PL PL06843948T patent/PL2039785T3/en unknown
- 2006-06-30 WO PCT/RU2006/000344 patent/WO2008002176A1/en active Application Filing
- 2006-06-30 AT AT06843948T patent/ATE508210T1/en active
- 2006-06-30 SI SI200631073T patent/SI2039785T1/en unknown
- 2006-06-30 DE DE06843948T patent/DE06843948T1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP2039785A1 (en) | 2009-03-25 |
EA200802345A1 (en) | 2009-04-28 |
BRPI0621816B1 (en) | 2015-06-02 |
WO2008002176A1 (en) | 2008-01-03 |
ES2328895T1 (en) | 2009-11-19 |
ATE508210T1 (en) | 2011-05-15 |
CN101522922A (en) | 2009-09-02 |
EP2039785A4 (en) | 2009-10-21 |
EP2039785B1 (en) | 2011-05-04 |
EA014276B1 (en) | 2010-10-29 |
DE06843948T1 (en) | 2009-12-17 |
BRPI0621816A2 (en) | 2012-09-18 |
ES2328895T3 (en) | 2011-10-18 |
PL2039785T3 (en) | 2011-10-31 |
SI2039785T1 (en) | 2011-09-30 |
DK2039785T3 (en) | 2011-08-15 |
CN101522922B (en) | 2012-08-01 |
DE602006021808D1 (en) | 2011-06-16 |
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