UA104595C2 - СПОСОБ ПРОИЗВОДСТВА низкоуглеродистой низкосернистой НИЗКОАЗОТИСТОй СТАЛИ С ИСПОЛЬЗОВАНИЕМ ОБЫЧНОГО СТАЛЕПЛАВИЛЬНОГО ОБОРУДОВАНИя - Google Patents
СПОСОБ ПРОИЗВОДСТВА низкоуглеродистой низкосернистой НИЗКОАЗОТИСТОй СТАЛИ С ИСПОЛЬЗОВАНИЕМ ОБЫЧНОГО СТАЛЕПЛАВИЛЬНОГО ОБОРУДОВАНИя Download PDFInfo
- Publication number
- UA104595C2 UA104595C2 UAA201102484A UAA201102484A UA104595C2 UA 104595 C2 UA104595 C2 UA 104595C2 UA A201102484 A UAA201102484 A UA A201102484A UA A201102484 A UAA201102484 A UA A201102484A UA 104595 C2 UA104595 C2 UA 104595C2
- Authority
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- Ukraine
- Prior art keywords
- steel
- carbon
- oxygen
- molten steel
- amount
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 210
- 239000010959 steel Substances 0.000 title claims abstract description 210
- 238000000034 method Methods 0.000 title claims abstract description 143
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims description 48
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 22
- 238000009628 steelmaking Methods 0.000 title abstract description 11
- 239000005864 Sulphur Substances 0.000 title description 3
- 239000001301 oxygen Substances 0.000 claims abstract description 75
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 75
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000002893 slag Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 230000004907 flux Effects 0.000 claims abstract description 25
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 16
- 230000023556 desulfurization Effects 0.000 claims abstract description 16
- 238000005266 casting Methods 0.000 claims abstract description 7
- 239000011593 sulfur Substances 0.000 claims description 52
- 229910052717 sulfur Inorganic materials 0.000 claims description 52
- 230000008569 process Effects 0.000 claims description 47
- 238000005261 decarburization Methods 0.000 claims description 37
- 238000013178 mathematical model Methods 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 15
- 239000004571 lime Substances 0.000 claims description 15
- 238000010891 electric arc Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000010079 rubber tapping Methods 0.000 abstract 2
- 239000000654 additive Substances 0.000 description 25
- 238000009826 distribution Methods 0.000 description 23
- 208000028659 discharge Diseases 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 238000007872 degassing Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 229910001021 Ferroalloy Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910000514 dolomite Inorganic materials 0.000 description 4
- 239000010459 dolomite Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009849 vacuum degassing Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- -1 sulfur ions Chemical class 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000532 Deoxidized steel Inorganic materials 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 238000009847 ladle furnace Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000161 steel melt Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000273930 Brevoortia tyrannus Species 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 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
- 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
- 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
- C21C5/54—Processes yielding slags of special composition
-
- 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
- C21C7/0043—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material into the falling stream of molten 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
- C21C7/0075—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
- C21C7/04—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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
-
- 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
- C21C7/072—Treatment with gases
-
- 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
- C21C7/10—Handling in a vacuum
-
- 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
- C21C2250/00—Specific additives; Means for adding material different from burners or lances
- C21C2250/08—Porous plug
-
- 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
Способ производства стали с низким содержанием углерода менее 0,035. %, который предусматривает: приготовление в сталеплавильной печи расплава стали, нагретого до температуры выпуска, которая необходима для десульфуризации в вакуумной камере дегазатора (ВКД); выпуск расплавленной стали с содержанием кислорода в интервале 600-1120 чнм через открытый проем в ковш; подачу шлакообразующей смеси в ковш для формирования шлакового покрытия на расплавленной стали в ковше; транспортировку расплавленной стали в ковше в ВКД; обезуглероживание расплавленной стали в ВКД доведением остаточного давления до уровня менее 65000 Па; добавление после обезуглероживания одного или более раскислителей в расплавленной стали; добавление после раскисления одной или более
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8614108P | 2008-08-04 | 2008-08-04 | |
| PCT/AU2009/000986 WO2010015020A1 (en) | 2008-08-04 | 2009-08-03 | Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA104595C2 true UA104595C2 (ru) | 2014-02-25 |
Family
ID=41606971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UAA201102484A UA104595C2 (ru) | 2008-08-04 | 2009-03-08 | СПОСОБ ПРОИЗВОДСТВА низкоуглеродистой низкосернистой НИЗКОАЗОТИСТОй СТАЛИ С ИСПОЛЬЗОВАНИЕМ ОБЫЧНОГО СТАЛЕПЛАВИЛЬНОГО ОБОРУДОВАНИя |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US8313553B2 (ru) |
| UA (1) | UA104595C2 (ru) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8523977B2 (en) * | 2011-01-14 | 2013-09-03 | Nucor Corporation | Method of desulfurizing steel |
| US11047015B2 (en) | 2017-08-24 | 2021-06-29 | Nucor Corporation | Manufacture of low carbon steel |
| CN112695153A (zh) * | 2020-12-21 | 2021-04-23 | 江苏沙钢高科信息技术有限公司 | 一种优化炼钢合金加料量降低成本的方法 |
| CN113957320A (zh) * | 2021-10-11 | 2022-01-21 | 深圳市我要模材科技有限公司 | 一种耐腐蚀钢材的加工方法 |
| CN113881828A (zh) * | 2021-10-25 | 2022-01-04 | 江苏长强钢铁有限公司 | 炼钢快速脱硫的方法 |
| CN115927948B (zh) * | 2023-02-15 | 2024-02-27 | 福建鼎盛钢铁有限公司 | 一种薄板连铸连轧耐候钢冶炼方法 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3793000A (en) * | 1972-06-12 | 1974-02-19 | Nat Steel Corp | Process for preparing killed low carbon steel and continuously casting the same, and the solidified steel shapes thus produced |
| IT1047585B (it) * | 1975-09-26 | 1980-10-20 | Centro Speriment Metallurg | Perfezionamento alla disossidazione e desolforazione dell acciaio |
| AU517323B2 (en) * | 1976-07-28 | 1981-07-23 | Nippon Steel Corporation | Producing killed steels for continuous casting |
| CA1179142A (en) * | 1981-10-28 | 1984-12-11 | Ralph Harris | Vacuum purification of liquid metal |
| US4612043A (en) * | 1984-03-29 | 1986-09-16 | Pennsylvania Engineering Corporation | Steel making method |
| CA1337846C (en) * | 1988-06-21 | 1996-01-02 | Hiroshi Nishikawa | Process for vacuum degassing and decarbonization with temperature drop compensating feature |
| US5279639A (en) * | 1990-04-06 | 1994-01-18 | Tam Ceramics, Inc. | Compositions for synthesizing ladle slags |
| US5110351A (en) * | 1991-01-10 | 1992-05-05 | Usx Corporation | Method of promoting the decarburization reaction in a vacuum refining furnace |
| US5304231A (en) * | 1991-12-24 | 1994-04-19 | Kawasaki Steel Corporation | Method of refining of high purity steel |
| JP3002593B2 (ja) | 1992-02-19 | 2000-01-24 | 川崎製鉄株式会社 | 極低炭素鋼の溶製方法 |
| AU653294B2 (en) * | 1992-08-26 | 1994-09-22 | Nippon Steel Corporation | Process for vacuum degassing molten steel |
| US5228902A (en) * | 1992-09-03 | 1993-07-20 | Usx Corporation | Method of desulfurization in vacuum processing of steel |
| US5472479A (en) * | 1994-01-26 | 1995-12-05 | Ltv Steel Company, Inc. | Method of making ultra-low carbon and sulfur steel |
| US5520718A (en) * | 1994-09-02 | 1996-05-28 | Inland Steel Company | Steelmaking degassing method |
| DE69430541T2 (de) * | 1994-11-25 | 2002-10-31 | Hitachi Metals Ltd | Verfahren zum raffinieren von metall |
| WO1997005291A1 (fr) * | 1995-08-01 | 1997-02-13 | Nippon Steel Corporation | Procede d'affinage sous vide d'acier en fusion |
| JP3896713B2 (ja) | 1998-12-16 | 2007-03-22 | 住友金属工業株式会社 | 清浄性に優れた極低炭素鋼の溶製方法 |
| JP4753504B2 (ja) | 2001-09-14 | 2011-08-24 | 日新製鋼株式会社 | 高純度Ｆｅ−Ｃｒ，Ｆｅ−Ｃｒ−Ｎｉ合金の製造方法 |
| US20040144518A1 (en) * | 2003-01-24 | 2004-07-29 | Blejde Walter N. | Casting steel strip with low surface roughness and low porosity |
| DE10325955A1 (de) * | 2003-06-07 | 2004-12-23 | Sms Demag Ag | Verfahren und Anlage zum Erzeugen von Stahlprodukten mit bester Oberflächenqualität |
-
2009
- 2009-03-08 UA UAA201102484A patent/UA104595C2/ru unknown
- 2009-03-30 US US12/414,047 patent/US8313553B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20100024596A1 (en) | 2010-02-04 |
| US8313553B2 (en) | 2012-11-20 |
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