RU2231559C1 - Способ прямого легирования стали комплексом элементов - Google Patents
Способ прямого легирования стали комплексом элементов Download PDFInfo
- Publication number
- RU2231559C1 RU2231559C1 RU2003107578/02A RU2003107578A RU2231559C1 RU 2231559 C1 RU2231559 C1 RU 2231559C1 RU 2003107578/02 A RU2003107578/02 A RU 2003107578/02A RU 2003107578 A RU2003107578 A RU 2003107578A RU 2231559 C1 RU2231559 C1 RU 2231559C1
- Authority
- RU
- Russia
- Prior art keywords
- reducing agent
- alloying
- alloying elements
- material containing
- metal
- Prior art date
Links
- 238000005275 alloying Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 110
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 238000002844 melting Methods 0.000 claims abstract description 35
- 230000008018 melting Effects 0.000 claims abstract description 35
- 239000002893 slag Substances 0.000 claims abstract description 32
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 29
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 239000010703 silicon Substances 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 28
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 150000002222 fluorine compounds Chemical class 0.000 claims description 6
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 5
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 16
- 239000000126 substance Substances 0.000 abstract description 15
- 238000011946 reduction process Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 description 32
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 24
- 229910052748 manganese Inorganic materials 0.000 description 24
- 238000006722 reduction reaction Methods 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000012071 phase Substances 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 235000012255 calcium oxide Nutrition 0.000 description 10
- 238000011109 contamination Methods 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 9
- 235000011941 Tilia x europaea Nutrition 0.000 description 9
- 239000004571 lime Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000006866 deterioration Effects 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009628 steelmaking Methods 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 150000004760 silicates Chemical class 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- -1 smelting Chemical compound 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical class [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- WYGQZDSIRBBVTA-UHFFFAOYSA-D [Nb+5].[Nb+5].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O Chemical class [Nb+5].[Nb+5].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O WYGQZDSIRBBVTA-UHFFFAOYSA-D 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical class [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- ASTZLJPZXLHCSM-UHFFFAOYSA-N dioxido(oxo)silane;manganese(2+) Chemical compound [Mn+2].[O-][Si]([O-])=O ASTZLJPZXLHCSM-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000009847 ladle furnace Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052883 rhodonite Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 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
- 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
-
- 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
-
- 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
-
- 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)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2003107578/02A RU2231559C1 (ru) | 2003-03-20 | 2003-03-20 | Способ прямого легирования стали комплексом элементов |
| AT0910704A AT502312B1 (de) | 2003-03-20 | 2004-03-16 | Verfahren zur direkten stahllegierung |
| BRPI0408524-8A BRPI0408524A (pt) | 2003-03-20 | 2004-03-16 | método para formação direta de ligas de aço |
| UA20040907630A UA73898C2 (en) | 2003-03-20 | 2004-03-16 | A method for direct steel alloying |
| CNB2004800076274A CN100540685C (zh) | 2003-03-20 | 2004-03-16 | 直接钢合金化方法 |
| PCT/RU2004/000099 WO2004083464A1 (fr) | 2003-03-20 | 2004-03-16 | Procede d'alliage direct de l'acier |
| KR1020057017589A KR100802639B1 (ko) | 2003-03-20 | 2004-03-16 | 강철의 직접 합금 방법 |
| CA2559154A CA2559154C (en) | 2003-03-20 | 2004-03-16 | Method for a direct steel alloying |
| HK06111536.2A HK1090957A1 (en) | 2003-03-20 | 2006-10-19 | Method for a direct steel alloying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2003107578/02A RU2231559C1 (ru) | 2003-03-20 | 2003-03-20 | Способ прямого легирования стали комплексом элементов |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2231559C1 true RU2231559C1 (ru) | 2004-06-27 |
| RU2003107578A RU2003107578A (ru) | 2004-12-27 |
Family
ID=32846881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2003107578/02A RU2231559C1 (ru) | 2003-03-20 | 2003-03-20 | Способ прямого легирования стали комплексом элементов |
Country Status (9)
| Country | Link |
|---|---|
| KR (1) | KR100802639B1 (de) |
| CN (1) | CN100540685C (de) |
| AT (1) | AT502312B1 (de) |
| BR (1) | BRPI0408524A (de) |
| CA (1) | CA2559154C (de) |
| HK (1) | HK1090957A1 (de) |
| RU (1) | RU2231559C1 (de) |
| UA (1) | UA73898C2 (de) |
| WO (1) | WO2004083464A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2577885C1 (ru) * | 2014-12-22 | 2016-03-20 | Публичное акционерное общество "Северсталь" (ОАО "Северсталь") | Способ производства стали (варианты) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1869888B1 (de) | 2005-04-13 | 2016-07-06 | Nokia Technologies Oy | Verfahren, einrichtung und system zum effektiven codieren und decodieren von videodaten |
| CN100434556C (zh) * | 2006-09-26 | 2008-11-19 | 山西太钢不锈钢股份有限公司 | 高锰含量不锈钢在冶炼中的加锰方法 |
| DE102007061062B4 (de) | 2007-12-14 | 2012-08-02 | Peiner Träger GmbH | Verfahren zum Erzeugen einer bis zu 30% Mangan enthaltenden Stahlschmelze |
| KR101300740B1 (ko) * | 2011-12-08 | 2013-08-28 | 주식회사 포스코 | 페로망간 탈린 슬래그의 안정화 방법 |
| WO2016172790A1 (en) * | 2015-04-26 | 2016-11-03 | Hatch Ltd. | Process and apparatus for producing high-manganese steels |
| CN109022840A (zh) * | 2018-07-17 | 2018-12-18 | 北京科技大学 | 一种再生铝合金显微组织控制方法 |
| CN115287390B (zh) * | 2022-08-04 | 2023-08-22 | 重庆钢铁股份有限公司 | 一种转炉生产低磷中合金钢的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508592A (en) | 1975-02-18 | 1978-04-26 | Nixon I | Manufacture of steel alloy steels and ferrous alloys |
| SU1044641A1 (ru) * | 1982-06-18 | 1983-09-30 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Способ легировани стали марганцем |
| DE3601337A1 (de) | 1986-01-16 | 1987-07-23 | Mannesmann Ag | Verfahren zur herstellung hochlegierter staehle im sauerstoffblaskonverter |
| RU2096491C1 (ru) | 1995-01-05 | 1997-11-20 | Государственный Обуховский завод | Способ производства стали |
| RU2096489C1 (ru) | 1995-06-19 | 1997-11-20 | Акционерное общество открытого типа "НОСТА" (ОХМК) | Способ производства стали в дуговых печах |
-
2003
- 2003-03-20 RU RU2003107578/02A patent/RU2231559C1/ru not_active IP Right Cessation
-
2004
- 2004-03-16 BR BRPI0408524-8A patent/BRPI0408524A/pt active IP Right Grant
- 2004-03-16 UA UA20040907630A patent/UA73898C2/uk unknown
- 2004-03-16 WO PCT/RU2004/000099 patent/WO2004083464A1/ru active Application Filing
- 2004-03-16 CA CA2559154A patent/CA2559154C/en not_active Expired - Fee Related
- 2004-03-16 CN CNB2004800076274A patent/CN100540685C/zh not_active Expired - Fee Related
- 2004-03-16 AT AT0910704A patent/AT502312B1/de not_active IP Right Cessation
- 2004-03-16 KR KR1020057017589A patent/KR100802639B1/ko not_active IP Right Cessation
-
2006
- 2006-10-19 HK HK06111536.2A patent/HK1090957A1/xx not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2577885C1 (ru) * | 2014-12-22 | 2016-03-20 | Публичное акционерное общество "Северсталь" (ОАО "Северсталь") | Способ производства стали (варианты) |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2559154A1 (en) | 2004-09-30 |
| UA73898C2 (en) | 2005-09-15 |
| AT502312A1 (de) | 2007-02-15 |
| HK1090957A1 (en) | 2007-01-05 |
| KR100802639B1 (ko) | 2008-02-13 |
| CA2559154C (en) | 2010-05-18 |
| CN1761763A (zh) | 2006-04-19 |
| AT502312B1 (de) | 2010-03-15 |
| KR20060012266A (ko) | 2006-02-07 |
| WO2004083464A1 (fr) | 2004-09-30 |
| BRPI0408524A (pt) | 2006-03-07 |
| CN100540685C (zh) | 2009-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2231559C1 (ru) | Способ прямого легирования стали комплексом элементов | |
| EP0265038B1 (de) | Verfahren zur Herstellung von Stahl | |
| JP2004169147A (ja) | 非金属介在物の極めて少ない清浄鋼の精錬方法 | |
| US5037609A (en) | Material for refining steel of multi-purpose application | |
| JPH0246647B2 (de) | ||
| RU2302471C1 (ru) | Способ выплавки стали в дуговой электропечи | |
| RU2252265C1 (ru) | Экзотермическая смесь для раскисления, рафинирования, модифицирования и легирования стали | |
| JP3158912B2 (ja) | ステンレス鋼の精錬方法 | |
| RU2258084C1 (ru) | Способ выплавки стали в дуговой электропечи | |
| RU2095429C1 (ru) | Способ производства подшипниковой стали | |
| CN1206373C (zh) | 用硝酸钙使炼钢渣起泡的方法及硝酸钙的这种应用 | |
| RU2096491C1 (ru) | Способ производства стали | |
| RU2186856C1 (ru) | Композиционная шихта для выплавки легированных сталей | |
| RU2228372C1 (ru) | Способ производства ванадийсодержащей стали | |
| RU2201458C1 (ru) | Способ модифицирования стали | |
| RU2223332C1 (ru) | Способ микролегирования и модифицирования стали | |
| RU2152442C1 (ru) | Способ обработки жидкой стали шлаком | |
| RU2282668C1 (ru) | Способ производства вольфрамсодержащей стали и сплавов | |
| RU1786089C (ru) | Способ выплавки стали скрап-процессом | |
| RU2204612C1 (ru) | Способ выплавки марганецсодержащей стали | |
| RU2222608C1 (ru) | Способ получения хромсодержащей стали | |
| RU2222607C1 (ru) | Способ легирования стали | |
| RU2333256C1 (ru) | Способ выплавки рельсовой стали | |
| RU2120477C1 (ru) | Способ раскисления, модифицирования и микролегирования ванадием стали | |
| RU2333258C2 (ru) | Способ получения стали в дуговой электросталеплавильной печи |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PD4A | Correction of name of patent owner | ||
| PC4A | Invention patent assignment |
Effective date: 20060424 |
|
| PC4A | Invention patent assignment |
Effective date: 20060511 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20170321 |