FI73740C - Kontroll av kvaevehalten i rostfritt staol i samband med staolframstaellningen. - Google Patents
Kontroll av kvaevehalten i rostfritt staol i samband med staolframstaellningen. Download PDFInfo
- Publication number
- FI73740C FI73740C FI731278A FI127873A FI73740C FI 73740 C FI73740 C FI 73740C FI 731278 A FI731278 A FI 731278A FI 127873 A FI127873 A FI 127873A FI 73740 C FI73740 C FI 73740C
- Authority
- FI
- Finland
- Prior art keywords
- nitrogen
- argon
- oxygen
- nitrogen content
- stage
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 262
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 131
- 229910000831 Steel Inorganic materials 0.000 title claims description 17
- 239000010959 steel Substances 0.000 title claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 title claims description 15
- 239000010935 stainless steel Substances 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 68
- 229910052786 argon Inorganic materials 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- 239000000155 melt Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 26
- 238000010791 quenching Methods 0.000 claims description 23
- 230000000171 quenching effect Effects 0.000 claims description 17
- 238000000137 annealing Methods 0.000 claims description 15
- 238000009628 steelmaking Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims 1
- 230000008569 process Effects 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 239000011651 chromium Substances 0.000 description 13
- 230000009467 reduction Effects 0.000 description 12
- 239000011572 manganese Substances 0.000 description 11
- 238000007670 refining Methods 0.000 description 11
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 229910052748 manganese Inorganic materials 0.000 description 9
- 230000008018 melting Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000914 Mn alloy Inorganic materials 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- GWVKDXOHXJEUCP-UHFFFAOYSA-N [N].[O].[Ar] Chemical compound [N].[O].[Ar] GWVKDXOHXJEUCP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 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 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- 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
- C21C7/0685—Decarburising of stainless steel
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24573372A | 1972-04-20 | 1972-04-20 | |
| US24573372 | 1972-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI73740B FI73740B (fi) | 1987-07-31 |
| FI73740C true FI73740C (fi) | 1988-11-22 |
Family
ID=22927861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI731278A FI73740C (fi) | 1972-04-20 | 1973-04-19 | Kontroll av kvaevehalten i rostfritt staol i samband med staolframstaellningen. |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3754894A (en, 2012) |
| JP (1) | JPS5213493B2 (en, 2012) |
| AT (1) | AT340453B (en, 2012) |
| AU (1) | AU472272B2 (en, 2012) |
| BE (1) | BE798482A (en, 2012) |
| BR (1) | BR7302813D0 (en, 2012) |
| CA (1) | CA980127A (en, 2012) |
| CS (1) | CS256352B2 (en, 2012) |
| DD (1) | DD103264A5 (en, 2012) |
| ES (1) | ES413940A1 (en, 2012) |
| FI (1) | FI73740C (en, 2012) |
| FR (1) | FR2180999B1 (en, 2012) |
| GB (1) | GB1420179A (en, 2012) |
| HU (1) | HU166874B (en, 2012) |
| IL (1) | IL42068A (en, 2012) |
| IT (1) | IT980292B (en, 2012) |
| NO (1) | NO134527C (en, 2012) |
| PL (1) | PL85660B1 (en, 2012) |
| SE (1) | SE426175B (en, 2012) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998666A (en) * | 1975-07-30 | 1976-12-21 | United States Steel Corporation | Subscale reaction strengthening of low carbon ferrous metal stock |
| US4081270A (en) * | 1977-04-11 | 1978-03-28 | Union Carbide Corporation | Renitrogenation of basic-oxygen steels during decarburization |
| US4260415A (en) * | 1979-12-12 | 1981-04-07 | Allegheny Ludlum Steel Corporation | Decarburizing molten metal |
| JPS57155314A (en) * | 1981-02-25 | 1982-09-25 | Sumitomo Metal Ind Ltd | Refining of high-cr steel |
| US4436553A (en) * | 1982-01-22 | 1984-03-13 | Union Carbide Corporation | Process to produce low hydrogen steel |
| DE3347718C2 (de) * | 1983-09-02 | 1986-05-28 | Ulrich Dipl.-Ing. 5905 Freudenberg Glasmeyer | Verfahren zur Herstellung von Stählen mit hohem Reinheitsgrad und geringen Gasgehalten in Stahlwerken und Stahlgießereien |
| US4699654A (en) * | 1986-04-08 | 1987-10-13 | Union Carbide Corporation | Melting furnace and method for melting metal |
| JPH08928B2 (ja) * | 1988-09-29 | 1996-01-10 | 川崎製鉄株式会社 | 高ｎステンレス鋼の精錬方法 |
| US5327357A (en) * | 1991-12-03 | 1994-07-05 | Praxair Technology, Inc. | Method of decarburizing molten metal in the refining of steel using neural networks |
| US6921497B2 (en) * | 1999-10-13 | 2005-07-26 | Electromagnetics Corporation | Composition of matter tailoring: system I |
| US6572792B1 (en) * | 1999-10-13 | 2003-06-03 | Atomic Ordered Materials, L.L.C. | Composition of matter tailoring: system 1 |
| DE10012837C1 (de) * | 2000-03-16 | 2001-07-26 | Vsg En & Schmiedetechnik Gmbh | Verfahren zur Kontrolle und Einstellung der Konzentration einer Gaskomponente in einer Schmelze und Vorrichtung zu dessen Durchführung |
| US7655160B2 (en) * | 2005-02-23 | 2010-02-02 | Electromagnetics Corporation | Compositions of matter: system II |
| KR100922061B1 (ko) * | 2007-12-12 | 2009-10-16 | 주식회사 포스코 | 극저탄소 페라이트계 스테인리스강 제조방법 |
| CN102021272B (zh) * | 2009-09-17 | 2012-07-18 | 宝山钢铁股份有限公司 | 不锈钢冶炼的氮含量控制方法 |
| NZ610276A (en) | 2010-11-22 | 2015-02-27 | Electromagnetics Corp | Tailoring a metal or modifying an electronic structure thereof |
| CN106950932A (zh) * | 2017-04-14 | 2017-07-14 | 长江大学 | 运用灰色系统gm（1，n）模型的天然气脱碳装置效果分析方法 |
| CN111592205A (zh) * | 2020-06-01 | 2020-08-28 | 江苏科技大学 | 一种船舶餐厨垃圾和生活污水回收处理沼气利用系统 |
| CN115125366B (zh) * | 2021-03-25 | 2024-05-10 | 上海梅山钢铁股份有限公司 | 一种吹氩站智能生产控制方法 |
| CN117377781A (zh) * | 2021-05-26 | 2024-01-09 | 杰富意钢铁株式会社 | 铁液的精炼方法 |
-
1972
- 1972-04-20 US US00245733A patent/US3754894A/en not_active Expired - Lifetime
-
1973
- 1973-04-09 CA CA168,269A patent/CA980127A/en not_active Expired
- 1973-04-10 AU AU54305/73A patent/AU472272B2/en not_active Expired
- 1973-04-18 BR BR2813/73A patent/BR7302813D0/pt unknown
- 1973-04-18 NO NO1661/73A patent/NO134527C/no unknown
- 1973-04-19 IT IT49562/73A patent/IT980292B/it active
- 1973-04-19 AT AT351373A patent/AT340453B/de not_active IP Right Cessation
- 1973-04-19 FR FR7314355A patent/FR2180999B1/fr not_active Expired
- 1973-04-19 FI FI731278A patent/FI73740C/fi active
- 1973-04-19 GB GB1890073A patent/GB1420179A/en not_active Expired
- 1973-04-19 SE SE7305623A patent/SE426175B/xx unknown
- 1973-04-19 BE BE130231A patent/BE798482A/xx not_active IP Right Cessation
- 1973-04-19 CS CS732838A patent/CS256352B2/cs unknown
- 1973-04-19 IL IL42068A patent/IL42068A/xx unknown
- 1973-04-19 HU HUJO194A patent/HU166874B/hu unknown
- 1973-04-19 JP JP48043741A patent/JPS5213493B2/ja not_active Expired
- 1973-04-19 ES ES413940A patent/ES413940A1/es not_active Expired
- 1973-04-20 PL PL1973162057A patent/PL85660B1/pl unknown
- 1973-04-23 DD DD170360A patent/DD103264A5/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7302813D0 (pt) | 1974-06-27 |
| PL85660B1 (en, 2012) | 1976-04-30 |
| HU166874B (en, 2012) | 1975-06-28 |
| ES413940A1 (es) | 1976-02-01 |
| ATA351373A (de) | 1977-04-15 |
| DD103264A5 (en, 2012) | 1974-01-12 |
| SE426175B (sv) | 1982-12-13 |
| DE2320165A1 (de) | 1973-10-31 |
| CA980127A (en) | 1975-12-23 |
| AT340453B (de) | 1977-12-12 |
| IT980292B (it) | 1974-09-30 |
| FR2180999B1 (en, 2012) | 1976-05-28 |
| IL42068A (en) | 1975-11-25 |
| GB1420179A (en) | 1976-01-07 |
| AU5430573A (en) | 1974-10-10 |
| JPS5213493B2 (en, 2012) | 1977-04-14 |
| NO134527B (en, 2012) | 1976-07-19 |
| FI73740B (fi) | 1987-07-31 |
| DE2320165B2 (de) | 1976-02-26 |
| IL42068A0 (en) | 1973-06-29 |
| NO134527C (en, 2012) | 1976-10-27 |
| BE798482A (fr) | 1973-10-19 |
| US3754894A (en) | 1973-08-28 |
| CS256352B2 (en) | 1988-04-15 |
| FR2180999A1 (en, 2012) | 1973-11-30 |
| JPS4921317A (en, 2012) | 1974-02-25 |
| CS283873A2 (en) | 1987-09-17 |
| AU472272B2 (en) | 1976-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI73740C (fi) | Kontroll av kvaevehalten i rostfritt staol i samband med staolframstaellningen. | |
| US3003865A (en) | Decarburizing process for alloy steels containing chromium | |
| US4321088A (en) | Process for treating pig iron melts and steel melts or alloys | |
| US4490172A (en) | Method of melting and refining steel and other ferrous alloys | |
| JP2000119732A (ja) | 高清浄極低炭素鋼の溶製方法 | |
| US4154602A (en) | Method of denitriding a high chromium molten steel with a minimum chromium loss | |
| CA1205638A (en) | Production of ultra low carbon steel by the basic oxygen process | |
| US4308415A (en) | Process for refining a molten metal and an apparatus therefor | |
| KR100384119B1 (ko) | 저탄소, 저질소 스테인레스강의 정련방법 | |
| US4568386A (en) | Process for purifying metals by insufflation and product produced thereby | |
| US4021233A (en) | Metallurgical process | |
| RU2103379C1 (ru) | Способ получения низкоуглеродистых сталей | |
| KR101786931B1 (ko) | 스테인리스 용강 정련방법 | |
| RU2091494C1 (ru) | Способ выплавки легированной хромом и никелем стали | |
| JPH05331523A (ja) | 軸受鋼用溶鋼の精錬方法 | |
| JPS5922765B2 (ja) | 硫化物の形熊を制御した低酸素、低硫黄鋼の製造法 | |
| KR100325098B1 (ko) | 전기로용강의처리방법 | |
| KR100267273B1 (ko) | 청정도가 높은 알루미늄-실리콘 복합탈산강의 제조방법 | |
| SU379633A1 (ru) | Способ производства низкоуглеродисто легированной стали | |
| KR100402005B1 (ko) | 청정도가 우수한 극저탄소 알루미늄 탈산강의 정련방법 | |
| RU2150515C1 (ru) | Способ рафинирования высокоуглеродистого расплава металла | |
| EP0023759B1 (en) | Method of recycling steel scrap | |
| US4188206A (en) | Metallurgical process | |
| SU1089149A1 (ru) | Способ выплавки рельсовой стали | |
| KR100554142B1 (ko) | 인바용강의 정련방법 |