RU2361928C2 - Method of metals refining - Google Patents
Method of metals refining Download PDFInfo
- Publication number
- RU2361928C2 RU2361928C2 RU2007132093/02A RU2007132093A RU2361928C2 RU 2361928 C2 RU2361928 C2 RU 2361928C2 RU 2007132093/02 A RU2007132093/02 A RU 2007132093/02A RU 2007132093 A RU2007132093 A RU 2007132093A RU 2361928 C2 RU2361928 C2 RU 2361928C2
- Authority
- RU
- Russia
- Prior art keywords
- metal
- temperature
- steel
- jet
- vacuum chamber
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 13
- 238000007670 refining Methods 0.000 title claims description 8
- 150000002739 metals Chemical class 0.000 title claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000003247 decreasing effect Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000161 steel melt Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
Изобретение относится к металлургии, а именно к внепечной обработке металлов, и может быть использовано при струйной вакуумной обработке стали или других жидких металлов.The invention relates to metallurgy, namely to out-of-furnace processing of metals, and can be used in jet vacuum processing of steel or other liquid metals.
Известные способы струйной и вакуумной обработки металлов направлены на оптимизацию разных режимов процесса.Known methods of jet and vacuum processing of metals are aimed at optimizing various process conditions.
Известен способ вакуумной обработки стали в струе (а.с. СССР №779410), включающий создание жидкой стали повышенного давления и определенные параметры ковша.A known method of vacuum processing of steel in a jet (as USSR USSR No. 779410), including the creation of high pressure liquid steel and certain parameters of the bucket.
Известен способ рафинирования стали (патент РФ №2073729), включающий введение в расплав стали редкоземельных элементов в определенном количестве.A known method of steel refining (RF patent No. 2073729), including the introduction of rare earth elements in a certain amount into the steel melt.
Недостатком указанных способов является отсутствие учета влияния температуры на кавитационный режим, что приводит к снижению качественных характеристик обрабатываемых металлов.The disadvantage of these methods is the lack of consideration of the effect of temperature on the cavitation mode, which leads to a decrease in the quality characteristics of the processed metals.
В качестве прототипа выбран способ струйно-вакуумного рафинирования стали в кавитационном режиме (патент РФ №2294383), включающий введение в расплав стали раскислителей алюминия, титана, кальция, магния и/или их сплавов, а также температурный режим перед струйным вакуумированием относительно точки ликвидуса для данной марки стали.As a prototype, the method of jet-vacuum refining of steel in cavitation mode (RF patent No. 2294383) was selected, which includes introducing deoxidizers of aluminum, titanium, calcium, magnesium and / or their alloys into the steel melt, as well as the temperature regime before jet evacuation relative to the liquidus point for this steel grade.
Недостатком способа является определение температурного режима кавитации по косвенному признаку, что при разных задачах и разных параметрах процесса рафинирования приводит к снижению качественных характеристик обработанного металла.The disadvantage of this method is the determination of the temperature regime of cavitation on an indirect basis, which for different tasks and different parameters of the refining process leads to a decrease in the quality characteristics of the treated metal.
Задачей, на решение которой направлено заявленное изобретение, является повышение качества рафинирования металлов за счет оптимизации кавитационного режима.The problem to which the claimed invention is directed is to improve the quality of metal refining by optimizing the cavitation regime.
Указанная задача решается тем, что в способе рафинирования металлов, включающем выпуск расплава металла в приемный ковш, введение в расплав металла раскислителей и струйное вакуумирование металла, температура расплава металла при входе в вакуумную камеру превышает порог образования каверн.This problem is solved by the fact that in the method of refining metals, including the release of the molten metal into the receiving bucket, the introduction of deoxidants into the molten metal and jet evacuation of the metal, the temperature of the molten metal at the entrance to the vacuum chamber exceeds the threshold for the formation of caverns.
Указанный температурный режим позволяет обеспечить кавитацию при разных задачах и параметрах процесса рафинирования металла.The specified temperature regime allows cavitation for various tasks and parameters of the metal refining process.
Способ осуществляли следующим образом.The method was carried out as follows.
Пример 1.Example 1
В дуговой электропечи выплавили сталь 34ХН1М при температуре 1670°С.Steel 34XH1M was smelted in an electric arc furnace at a temperature of 1670 ° C.
Расплавленную сталь выпустили в приемный ковш с присаженным чушковым алюминием, после чего осуществили перелив металла из приемного ковша в ковш вакуумной камеры при температуре 1620°С. При этом содержание водорода в конечном продукте снизилось по сравнению с исходным на 29%, содержание кислорода снизилось на 18%, а содержание азота снизилось на 60%.The molten steel was discharged into a receiving ladle with aluminum alloy seated, after which metal was poured from the receiving ladle into the ladle of a vacuum chamber at a temperature of 1620 ° C. At the same time, the hydrogen content in the final product decreased by 29% compared to the initial one, the oxygen content decreased by 18%, and the nitrogen content decreased by 60%.
Пример 2.Example 2
В дуговой электропечи выплавили сталь 9Х2МФ при температуре 1640°С.Steel 9X2MF was smelted in an electric arc furnace at a temperature of 1640 ° C.
Расплавленную сталь выпустили в приемный ковш с присаженным чушковым алюминием, после чего осуществили перелив металла из приемного ковша в ковш вакуумной камеры при температуре 1600°С. При этом содержание водорода в конечном продукте снизилось по сравнению с исходным на 28%, содержание кислорода снизилось на 20%, а содержание азота снизилось на 61%.The molten steel was discharged into a receiving ladle with aluminum alloy seated, after which metal was transferred from the receiving ladle to the ladle of a vacuum chamber at a temperature of 1600 ° C. At the same time, the hydrogen content in the final product decreased by 28% compared with the initial one, the oxygen content decreased by 20%, and the nitrogen content decreased by 61%.
Результаты обработки в кавитационном режиме других металлов:Results of processing in cavitation mode of other metals:
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007132093/02A RU2361928C2 (en) | 2007-08-24 | 2007-08-24 | Method of metals refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007132093/02A RU2361928C2 (en) | 2007-08-24 | 2007-08-24 | Method of metals refining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2007132093A RU2007132093A (en) | 2009-02-27 |
| RU2361928C2 true RU2361928C2 (en) | 2009-07-20 |
Family
ID=40529461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2007132093/02A RU2361928C2 (en) | 2007-08-24 | 2007-08-24 | Method of metals refining |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2361928C2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224058A (en) * | 1979-04-19 | 1980-09-23 | Molycorp, Inc. | Methods of desulphurizing fluid materials |
| SU1073297A1 (en) * | 1982-10-04 | 1984-02-15 | Московский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Стали И Сплавов | Apparatus for evacuating metal in a jet |
| RU2026135C1 (en) * | 1991-09-16 | 1995-01-09 | Институт проблем литья АН УССР | Method of casting ingots |
| RU2046149C1 (en) * | 1994-01-19 | 1995-10-20 | Акционерное общество "Нижнетагильский металлургический комбинат" | Method of vacuum refining of metal and apparatus for performing the same |
-
2007
- 2007-08-24 RU RU2007132093/02A patent/RU2361928C2/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224058A (en) * | 1979-04-19 | 1980-09-23 | Molycorp, Inc. | Methods of desulphurizing fluid materials |
| SU1073297A1 (en) * | 1982-10-04 | 1984-02-15 | Московский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Стали И Сплавов | Apparatus for evacuating metal in a jet |
| RU2026135C1 (en) * | 1991-09-16 | 1995-01-09 | Институт проблем литья АН УССР | Method of casting ingots |
| RU2046149C1 (en) * | 1994-01-19 | 1995-10-20 | Акционерное общество "Нижнетагильский металлургический комбинат" | Method of vacuum refining of metal and apparatus for performing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2007132093A (en) | 2009-02-27 |
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| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20110825 |