TR201820148T4 - Cost-effective construction of a low carbon, low sulfur and low nitrogen steel using conventional steelmaking equipment - Google Patents
Cost-effective construction of a low carbon, low sulfur and low nitrogen steel using conventional steelmaking equipment Download PDFInfo
- Publication number
- TR201820148T4 TR201820148T4 TR2018/20148T TR201820148T TR201820148T4 TR 201820148 T4 TR201820148 T4 TR 201820148T4 TR 2018/20148 T TR2018/20148 T TR 2018/20148T TR 201820148 T TR201820148 T TR 201820148T TR 201820148 T4 TR201820148 T4 TR 201820148T4
- Authority
- TR
- Turkey
- Prior art keywords
- low
- steel composition
- molten steel
- cost
- vtd
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 10
- 239000010959 steel Substances 0.000 title abstract 10
- 238000009628 steelmaking Methods 0.000 title abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 238000010276 construction Methods 0.000 title 1
- 229910052757 nitrogen Inorganic materials 0.000 title 1
- 229910052717 sulfur Inorganic materials 0.000 title 1
- 239000011593 sulfur Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 abstract 10
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000003635 deoxygenating effect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
Classifications
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- 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
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- 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
-
- 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
- C21C7/064—Dephosphorising; Desulfurising
-
- 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
- C21C7/10—Handling in a vacuum
-
- 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
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)
Abstract
Bir VTD'de kükürt gidermeye yönelik istendiği üzere çelik yapma fırınında erimiş çelik bileşimin bir ısısının bir eriyik akıtma sıcaklığına hazırlanmasına, yaklaşık 600 ve 1120 ppm arasında bir oksijen seviyesi ile erimiş çelik bileşiminin bir potanın içine açık bir şekilde eriyik akıtılmasına, potada erimiş çelik bileşimi üzerinde bir cüruf kaplaması oluşturmak üzere potada bileşik oluşturan bir cürufun sağlanmasına, potada erimiş çelik bileşiminin bir VTD'ye taşınmasına, 650 milibardan bir vakumun tasarlanması ile VTD'de erimiş çelik bileşiminin karbonsuzlaştırılmasına, karbonsuzlaştırmadan sonra erimiş çelik bileşimine bir veya daha fazla oksijen gidericinin eklenmesine ve erimiş çelik bileşiminin oksijeninin giderilmesine, oksijen gidermeden sonra, erimiş çelik bileşiminin kükürtünü gidermek üzere bir veya daha fazla fluks bileşiminin eklenmesine ve ağırlıkça %0.035'ten daha az düşük karbonlu bir çeliği oluşturmak üzere erimiş çelik bileşiminin dökümlenmesine yönelik adımları içeren ağırlıkça %0.035'ten daha az düşük karbonlu bir çeliğin yapılmasına yönelik bir yöntemdir.For desulphurisation in a VTD, preparing a heat of the molten steel composition to a melt tapping temperature in a steelmaking furnace, pouring the molten steel composition openly into a crucible with an oxygen level between about 600 and 1120 ppm, over the molten steel composition in the ladle. providing a composite slag in the ladle to form a slag coating, conveying the molten steel composition in the ladle to a VTD, decarburising the molten steel composition at the VTD by designing a vacuum from 650 millibars, adding one or more deoxidizers to the molten steel composition after decarburisation, and molten deoxidizing the steel composition, after deoxygenating, adding one or more flux compositions to desulfurize the molten steel composition, and casting the molten steel composition to form a low-carbon steel of less than 0.035% by weight n is a method of making a low carbon steel of less than 0.035% by weight.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8614108P | 2008-08-04 | 2008-08-04 | |
| AU2008904315A AU2008904315A0 (en) | 2008-08-22 | Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment | |
| US12/414,047 US8313553B2 (en) | 2008-08-04 | 2009-03-30 | Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TR201820148T4 true TR201820148T4 (en) | 2019-01-21 |
Family
ID=52595685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2018/20148T TR201820148T4 (en) | 2008-08-04 | 2009-08-03 | Cost-effective construction of a low carbon, low sulfur and low nitrogen steel using conventional steelmaking equipment |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105714016B (en) |
| MY (1) | MY152973A (en) |
| PL (1) | PL2331715T3 (en) |
| TR (1) | TR201820148T4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396094A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | A kind of smelting process of low nitrogen mild steel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100513587C (en) * | 2006-06-26 | 2009-07-15 | 舞阳钢铁有限责任公司 | Electric furnace smelting method for high-grade pipe line steel |
-
2009
- 2009-08-03 MY MYPI20110472 patent/MY152973A/en unknown
- 2009-08-03 CN CN201610158162.7A patent/CN105714016B/en active Active
- 2009-08-03 TR TR2018/20148T patent/TR201820148T4/en unknown
- 2009-08-03 PL PL09804375T patent/PL2331715T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL2331715T3 (en) | 2017-06-30 |
| CN105714016A (en) | 2016-06-29 |
| MY152973A (en) | 2014-12-15 |
| CN105714016B (en) | 2019-01-22 |
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