ES2168934B1 - Metodo y istema para producir acero con bajo contenido de nitrogeno. - Google Patents
Metodo y istema para producir acero con bajo contenido de nitrogeno.Info
- Publication number
- ES2168934B1 ES2168934B1 ES009950067A ES9950067A ES2168934B1 ES 2168934 B1 ES2168934 B1 ES 2168934B1 ES 009950067 A ES009950067 A ES 009950067A ES 9950067 A ES9950067 A ES 9950067A ES 2168934 B1 ES2168934 B1 ES 2168934B1
- Authority
- ES
- Spain
- Prior art keywords
- molten metal
- istema
- inner core
- nitrogen content
- low nitrogen
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title 2
- 229910000831 Steel Inorganic materials 0.000 title 1
- 229910052757 nitrogen Inorganic materials 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- 230000004907 flux Effects 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012768 molten material Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
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
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
-
- 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
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- 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
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
- F27D3/0026—Introducing additives into the melt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Un método de introducir un material fundente desnitrogenizante en un depósito de metal fundido incluye los pasos de proporcionar un vector parecido a alambre que tiene un núcleo interior de material fundente y una capa exterior que se usa para contener el núcleo interior, y usar una máquina de alimentar alambre para introducir el vector parecido a alambre en un depósito de metal fundido. En comparación con las técnicas convencionales de extracción superior de escoria, este proceso permite inyectar el material del que se hace el núcleo interior, al depósito de metal fundido a una velocidad y dirección que promueven una mezcla controlada del material fundente y el metal fundido.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86617397A | 1997-05-30 | 1997-05-30 | |
US97977197A | 1997-11-26 | 1997-11-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2168934A1 ES2168934A1 (es) | 2002-06-16 |
ES2168934B1 true ES2168934B1 (es) | 2003-11-01 |
Family
ID=27127935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES009950067A Expired - Lifetime ES2168934B1 (es) | 1997-05-30 | 1998-12-03 | Metodo y istema para producir acero con bajo contenido de nitrogeno. |
Country Status (11)
Country | Link |
---|---|
JP (1) | JP2002501578A (es) |
KR (1) | KR20010013178A (es) |
CN (1) | CN1084793C (es) |
AU (1) | AU743299B2 (es) |
BR (1) | BR9809184A (es) |
CA (1) | CA2292591A1 (es) |
DE (1) | DE19882438T1 (es) |
ES (1) | ES2168934B1 (es) |
FI (1) | FI19992549A (es) |
GB (1) | GB2340132A (es) |
WO (1) | WO1998054369A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2422618A (en) * | 2005-01-28 | 2006-08-02 | Injection Alloys Ltd | Molten metal refining wire |
WO2009028924A1 (es) * | 2007-08-29 | 2009-03-05 | Jack Victor Nyrup Aguilar | Compuesto ionizante estabilizador del arco eléctrico |
KR101017482B1 (ko) * | 2008-09-29 | 2011-02-25 | 현대제철 주식회사 | 박슬라브 주조용 보론 첨가 용강의 정련방법 |
CN102277467A (zh) * | 2010-06-09 | 2011-12-14 | 鞍钢股份有限公司 | 一种转炉出钢过程钢水脱氮的方法 |
CN115418441B (zh) * | 2022-08-24 | 2024-02-06 | 武汉尚圆融信新型材料有限公司 | 转炉出钢过程的高效脱氮剂及其脱氮方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US34418A (en) * | 1862-02-18 | Improvement in vegetable and root cutters | ||
US734418A (en) * | 1903-03-30 | 1903-07-21 | John Mcardle | Plow. |
FI56857C (fi) * | 1977-06-21 | 1980-04-10 | Outokumpu Oy | Saett och anordning foer raffinering av smaeltor med ett pulverformigt fast material och/eller gas |
USRE34418E (en) * | 1982-11-23 | 1993-10-26 | Injectall Limited | Apparatus and method for introducing substances into liquid metal |
US4999053A (en) * | 1985-04-26 | 1991-03-12 | Mitsui Engineering And Ship Building Co., Ltd. | Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen |
US4831742A (en) * | 1986-10-15 | 1989-05-23 | Struble James E | Contour and outline transducer gage assembly |
US4832742A (en) * | 1988-05-12 | 1989-05-23 | Metal Research Corporation | Flexible refining-agent clad wire for refining molten iron group metal |
-
1998
- 1998-05-29 CN CN98805650A patent/CN1084793C/zh not_active Expired - Fee Related
- 1998-05-29 KR KR19997011163A patent/KR20010013178A/ko not_active Application Discontinuation
- 1998-05-29 BR BR9809184-0A patent/BR9809184A/pt not_active Application Discontinuation
- 1998-05-29 AU AU77239/98A patent/AU743299B2/en not_active Ceased
- 1998-05-29 DE DE19882438T patent/DE19882438T1/de not_active Withdrawn
- 1998-05-29 JP JP50105999A patent/JP2002501578A/ja active Pending
- 1998-05-29 CA CA002292591A patent/CA2292591A1/en not_active Abandoned
- 1998-05-29 WO PCT/US1998/011528 patent/WO1998054369A1/en not_active Application Discontinuation
- 1998-12-03 ES ES009950067A patent/ES2168934B1/es not_active Expired - Lifetime
-
1999
- 1999-11-26 GB GB9927865A patent/GB2340132A/en not_active Withdrawn
- 1999-11-29 FI FI992549A patent/FI19992549A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
KR20010013178A (ko) | 2001-02-26 |
CN1258321A (zh) | 2000-06-28 |
GB2340132A (en) | 2000-02-16 |
DE19882438T1 (de) | 2000-06-21 |
WO1998054369A1 (en) | 1998-12-03 |
AU7723998A (en) | 1998-12-30 |
AU743299B2 (en) | 2002-01-24 |
JP2002501578A (ja) | 2002-01-15 |
GB9927865D0 (en) | 2000-01-26 |
ES2168934A1 (es) | 2002-06-16 |
BR9809184A (pt) | 2000-08-01 |
FI19992549A (fi) | 1999-11-29 |
CA2292591A1 (en) | 1998-12-03 |
CN1084793C (zh) | 2002-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20020616 Kind code of ref document: A1 Effective date: 20020616 |
|
FG2A | Definitive protection |
Ref document number: 2168934B1 Country of ref document: ES |
|
FA2A | Application withdrawn |
Effective date: 20050301 |