SU876733A1 - Method of steel treatment - Google Patents
Method of steel treatment Download PDFInfo
- Publication number
- SU876733A1 SU876733A1 SU792855272A SU2855272A SU876733A1 SU 876733 A1 SU876733 A1 SU 876733A1 SU 792855272 A SU792855272 A SU 792855272A SU 2855272 A SU2855272 A SU 2855272A SU 876733 A1 SU876733 A1 SU 876733A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- release
- limestone
- metal
- steel
- ladle
- Prior art date
Links
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)
Description
II
Изобретение относитс к черной мёт1аллургии , в частности к способам внепе ной обработки стали шлакообразуюшими агентами.The invention relates to black metallurgy, in particular, to methods of extra-mild steel treatment with slag-forming agents.
В сталеплавильном производстве известны способы обработки металла в ксжше твердыми газообразующими материалами, например о аботки стали известн ком и окислами кальци , которые ввод т в виде Кусков под струю металла в начале выпуска fl .In the steelmaking industry, methods are known for treating a metal in a solid synthetic gas-forming materials, for example, steel became limestone and calcium oxides, which are introduced in the form of chunks under the stream of metal at the beginning of the fl fl.
Недостаток этого способа состоит в том, что известн к, введенный в начале выпуска, быстро разлагаетс и не обеспечивает снижени угара раскислителей и (защиты металла от насыщени азотом,The disadvantage of this method is that limestone, introduced at the beginning of the release, quickly decomposes and does not provide a reduction in deoxidizing carbon loss and (protecting the metal from nitrogen saturation,
Известн к разлагаетс в течение;короткого промежутка времени с нача/ш выпуска . В период присадки раскислителей ингенсивность выделени СО становитс недостаточной дл активного перемешивани металла и предотвращени образовани шлаковой корки, затрудн ющей усвоение ферросплавов.Lime is decomposed over a short period of time from an early / w release. During the period of the addition of deoxidizers, the intensity of CO release becomes insufficient to actively mix the metal and prevent the formation of a slag crust that impedes the absorption of ferroalloys.
Наиболее близким по технической сущности и достигаемому эффекту к предлагаемому вл етс слособ обраБоткн СГШй, включающий выпуск расплавленного металла в ковщ и обработку во врем выпуска , например, при нвйрше ™ ковша на 1/5-1/2 высоты, известн ком и раскалите л Ми в виде брикетов 21 ,The closest to the technical essence and the achieved effect to the proposed is a processing method, including the release of molten metal into the ladle and processing during the release, for example, when the ladle is ™ at 1 / 5-1 / 2 height, with lime and heat it. in the form of briquettes 21,
Недостаток способа состоит в том, что разложение известн ка происходит бурно The disadvantage of this method is that the decomposition of limestone occurs rapidly
0 в течение непродолжительного времени, в результате чего выделение углекислого газа быстро прекращаетс и известн.нк не выполн ет защитной функции. Раскисленный металл оказываетс незащищенном от вооts действи атмосферы и насыщаетс aswoM,0 for a short time, as a result of which the carbon dioxide emission ceases quickly and limestone does not perform a protective function. The deoxidized metal is unprotected against the effects of the atmosphere and is saturated with aswoM,
Цель изобретени - уменьшение угара раскислителей и снижение содержани азота в стали.The purpose of the invention is to reduce the loss of scavengers and reduce the nitrogen content in steel.
Поставленна цель достигаетс тем, The goal is achieved by
что в известном способе обработки стали, включающем выпуск расплавленного мета1ьла в ковш, введение во врем выпуска раскислителей и известн ка, последний ввоwhat is known in the method of steel processing, including the release of molten metal into the ladle, the introduction during the production of deoxidizers and limestone, the last
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792855272A SU876733A1 (en) | 1979-12-21 | 1979-12-21 | Method of steel treatment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792855272A SU876733A1 (en) | 1979-12-21 | 1979-12-21 | Method of steel treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
SU876733A1 true SU876733A1 (en) | 1981-10-30 |
Family
ID=20865988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792855272A SU876733A1 (en) | 1979-12-21 | 1979-12-21 | Method of steel treatment |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU876733A1 (en) |
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1979
- 1979-12-21 SU SU792855272A patent/SU876733A1/en active
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