SU1710583A1 - Method for production of low-alloy steel - Google Patents
Method for production of low-alloy steel Download PDFInfo
- Publication number
- SU1710583A1 SU1710583A1 SU894722614A SU4722614A SU1710583A1 SU 1710583 A1 SU1710583 A1 SU 1710583A1 SU 894722614 A SU894722614 A SU 894722614A SU 4722614 A SU4722614 A SU 4722614A SU 1710583 A1 SU1710583 A1 SU 1710583A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- steel
- production
- ladle
- low
- aluminum
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 7
- 229910000851 Alloy steel Inorganic materials 0.000 title claims 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000004202 carbamide Substances 0.000 claims abstract 3
- 238000009628 steelmaking Methods 0.000 claims abstract 2
- 230000032683 aging Effects 0.000 claims 1
- 239000013067 intermediate product Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Изобретение относитс к области черной металлургии, конкретнее к способам производства низколегированных сталей. Целью изобретени вл етс повышение предела прочности и в зкости стали. В способе производства низколегированных сталей, включающем получение в сталеплавильном агрегате полупродукта, выпуск его в ковш и последующее раскисление. Согласно изобретению металл выпускают с содержанием углерода 0,06-0,09^. в начале выпуска в ковш дают чушковый алюминий из расчета 1,0-1,2 кг/т стали и одновременно карбамид из расчета 0,5-0,7 кг/т стали. Сталь хорошо разливаетс на МНЛЗ. 1 табл.The invention relates to the field of ferrous metallurgy, and more specifically to methods for producing low-alloy steels. The aim of the invention is to increase the tensile strength and toughness of steel. In the method of production of low-alloy steels, including the production of semi-finished product in the steel-making unit, its release into the ladle and subsequent deoxidation. According to the invention, the metal is produced with a carbon content of 0.06-0.09 ^. at the beginning of production, pig aluminum is supplied to the ladle at the rate of 1.0-1.2 kg / t of steel and at the same time urea at the rate of 0.5-0.7 kg / t of steel. Steel is well cast in the caster. 1 tab.
Description
Изобретение относитс к области черной металлургии, конкретнее к способам производства низколегированных сталей. ,The invention relates to the field of ferrous metallurgy, and more specifically to methods for producing low-alloy steels. ,
Целью изобретени вл етс повышение предела прочности и в зкости стали.The aim of the invention is to increase the tensile strength and toughness of steel.
/Алюминий вл етс не только весьма эффективным раскислителем, но и нитридообразующим элементом, однако это его качество не реализуетс , так как в насто щее врем в технрлогии используетс малоактивный молекул рный азот и дл его испол,ьзовани необходимо весьма высокое давление пор дка 130-150 атм, что технически сложно.Aluminum is not only a very effective deoxidizing agent, but also a nitride-forming element; however, this quality is not realized, since at present low-activity molecular nitrogen is used in technology and very high pressure of 130-150 is required to use it. ATM, which is technically difficult.
Вьшуск металла с содержанием углерода менее 0,06% при даче алюмини в ковш приводит преимущественно к образованию его окислов, повышенное содержание кислорода преп тствует проникновению азота.The release of a metal with a carbon content of less than 0.06% when giving aluminum to the ladle leads mainly to the formation of its oxides, the increased oxygen content prevents the penetration of nitrogen.
и, таким образом, практически не образуетс упрочн юща нитридна фаза на основе алюмини .and, thus, an aluminum-based hardening nitride phase is practically not formed.
Выпуск металла с содержанием углерода более 0,09% может привести к выпадам относительно заданного стандартами химического состава стали.The release of a metal with a carbon content of more than 0.09% can lead to precipitations relative to the chemical composition of steel specified by the standards.
Выпуск металла с содержанием углерода более 0,15% на углеродистых стал х также может привести к превышению его содержани относительно заданного предельного значени .The release of metal with a carbon content of more than 0.15% on carbon steels can also lead to an excess of its content relative to a given limit value.
Количества вводимого алюмини менее 1,0 кг/т оказываетс недостаточно дл его использовани одновременно как раскислиТел и нитридообразовател .Amounts of injected aluminum less than 1.0 kg / ton are not enough to use it simultaneously as a deoxidizer and nitride-forming agent.
Введение алюмини в кол честве более 1,2 кг/т стали приводит к увеличению содержани кислоторастворимого (остаточногоThe introduction of aluminum in the amount of more than 1.2 kg / t of steel leads to an increase in the content of acid-soluble (residual
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894722614A SU1710583A1 (en) | 1989-08-10 | 1989-08-10 | Method for production of low-alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894722614A SU1710583A1 (en) | 1989-08-10 | 1989-08-10 | Method for production of low-alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1710583A1 true SU1710583A1 (en) | 1992-02-07 |
Family
ID=21462669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894722614A SU1710583A1 (en) | 1989-08-10 | 1989-08-10 | Method for production of low-alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1710583A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2172349C2 (en) * | 1999-08-19 | 2001-08-20 | Криночкин Эдуард Викторович | Method of steel making |
| RU2467073C1 (en) * | 2011-04-15 | 2012-11-20 | Владимир Андреевич Паршин | Intensive alloying of steel by nitride and carbonitride nanophases of alloying elements |
| RU2661983C1 (en) * | 2017-04-10 | 2018-07-23 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Method of production of low alloy structural steel |
-
1989
- 1989-08-10 SU SU894722614A patent/SU1710583A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 1047965,кл. С 21 С 5/52, 1983.Л ишак С.Д. и др. Улучшение технологии производства низколегированной стали 09Г2 и 09Г2С в 100 т мощных электропечах. - Сталь, №2,1989. * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2172349C2 (en) * | 1999-08-19 | 2001-08-20 | Криночкин Эдуард Викторович | Method of steel making |
| RU2467073C1 (en) * | 2011-04-15 | 2012-11-20 | Владимир Андреевич Паршин | Intensive alloying of steel by nitride and carbonitride nanophases of alloying elements |
| RU2661983C1 (en) * | 2017-04-10 | 2018-07-23 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Method of production of low alloy structural steel |
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