EP2054533A4 - A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof - Google Patents
A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereofInfo
- Publication number
- EP2054533A4 EP2054533A4 EP06824112A EP06824112A EP2054533A4 EP 2054533 A4 EP2054533 A4 EP 2054533A4 EP 06824112 A EP06824112 A EP 06824112A EP 06824112 A EP06824112 A EP 06824112A EP 2054533 A4 EP2054533 A4 EP 2054533A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- absorption
- ferro
- nitrogen
- oxygen
- alloy
- 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.)
- Withdrawn
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
- C21C7/0006—Adding metallic additives
-
- 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
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- 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
-
- 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
- F27D3/16—Introducing a fluid jet or current into the charge
-
- 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
-
- 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
- C21C2300/00—Process aspects
- C21C2300/06—Modeling of the process, e.g. for control purposes; CII
-
- 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
-
- 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
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060079693A KR100812018B1 (en) | 2006-08-23 | 2006-08-23 | Apparatus with spreading part for inserting ferro-alloy |
KR1020060079692A KR100812017B1 (en) | 2006-08-23 | 2006-08-23 | Method for laddle treatment |
PCT/KR2006/005406 WO2008023863A1 (en) | 2006-08-23 | 2006-12-12 | A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2054533A1 EP2054533A1 (en) | 2009-05-06 |
EP2054533A4 true EP2054533A4 (en) | 2009-12-30 |
Family
ID=39106930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06824112A Withdrawn EP2054533A4 (en) | 2006-08-23 | 2006-12-12 | A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2054533A4 (en) |
JP (1) | JP5079005B2 (en) |
WO (1) | WO2008023863A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101853769B1 (en) * | 2016-08-29 | 2018-05-02 | 주식회사 포스코 | Manufacturing method of alloy steel |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2858125A (en) * | 1955-02-01 | 1958-10-28 | Air Reduction | Reagent feeding apparatus |
DE1433464A1 (en) * | 1962-04-16 | 1968-11-28 | Combustion Eng | Process for the production of cast steel or cast iron |
US3880411A (en) * | 1973-08-24 | 1975-04-29 | Natalya Alexandrovna Voronova | Device for treatment of molten cast iron in vessels |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS579821A (en) * | 1980-06-18 | 1982-01-19 | Kawasaki Steel Corp | Method of addition of auxiliary raw material or the like into ladle |
JPS6345674Y2 (en) * | 1986-05-12 | 1988-11-28 | ||
JPH059552A (en) | 1991-07-09 | 1993-01-19 | Nippon Steel Corp | Top blowing lance type ladle refining apparatus |
US5211744A (en) | 1991-10-02 | 1993-05-18 | Premelt Systems, Inc. | Method and means for improving molten metal furnace charging efficiency |
US5705123A (en) * | 1994-12-15 | 1998-01-06 | Hayes Wheels International, Inc. | Metal chip reclamation system |
US5919283A (en) * | 1996-11-06 | 1999-07-06 | Premelt Pump, Inc. | Method and apparatus for introducing metal chips into molten metal bath |
US6409962B1 (en) * | 2000-10-02 | 2002-06-25 | Rossborough Manufacturing Co. | Powder injector for ladle |
JP3867683B2 (en) * | 2003-06-09 | 2007-01-10 | 住友金属工業株式会社 | Molten steel refining equipment |
-
2006
- 2006-12-12 WO PCT/KR2006/005406 patent/WO2008023863A1/en active Search and Examination
- 2006-12-12 EP EP06824112A patent/EP2054533A4/en not_active Withdrawn
- 2006-12-12 JP JP2009525475A patent/JP5079005B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2858125A (en) * | 1955-02-01 | 1958-10-28 | Air Reduction | Reagent feeding apparatus |
DE1433464A1 (en) * | 1962-04-16 | 1968-11-28 | Combustion Eng | Process for the production of cast steel or cast iron |
US3880411A (en) * | 1973-08-24 | 1975-04-29 | Natalya Alexandrovna Voronova | Device for treatment of molten cast iron in vessels |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008023863A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008023863A1 (en) | 2008-02-28 |
JP5079005B2 (en) | 2012-11-21 |
JP2010501726A (en) | 2010-01-21 |
EP2054533A1 (en) | 2009-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090219 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20091130 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F27D 3/18 20060101ALI20091124BHEP Ipc: F27D 3/16 20060101ALI20091124BHEP Ipc: C21C 7/00 20060101AFI20080403BHEP |
|
17Q | First examination report despatched |
Effective date: 20100908 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20111116 |