SU420681A1 - METHOD OF STEEL REFINATION - Google Patents
METHOD OF STEEL REFINATIONInfo
- Publication number
- SU420681A1 SU420681A1 SU1804247A SU1804247A SU420681A1 SU 420681 A1 SU420681 A1 SU 420681A1 SU 1804247 A SU1804247 A SU 1804247A SU 1804247 A SU1804247 A SU 1804247A SU 420681 A1 SU420681 A1 SU 420681A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- steel
- metal
- slag
- acidic
- refination
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 claims 1
- 239000006028 limestone Substances 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
1one
Изобретение относитс к области черной металлургии и может быть исиользовано в сталеплавильных цехах.The invention relates to the field of ferrous metallurgy and can be used in steel-smelting workshops.
Известен способ рафинировани стали, заключающийс в последовательной обработке металла известково-глиноземистым, кислым или нейтральным шлаком.There is a known method of refining steel, which consists in the sequential processing of metal with lime-alumina, acid or neutral slag.
Рафинирование стали кислым или нейтральным шлаком производитс в печи, причем при заливке металла в электропечь металл дополнительно загр зн етс неметаллическими включени ми (из-за размывани футеровки).Refining the steel with acidic or neutral slag is performed in a furnace, and when metal is poured into an electric furnace, metal is additionally contaminated with non-metallic inclusions (due to washing out of the lining).
Кроме того, относительно высока температура металла в печи преп тствует достижению равновеси реакций раскислени металла , вследствие чего не достигаетс необходима степень чистоты металла по неметаллическим включениг;М.In addition, the relatively high temperature of the metal in the furnace hinders the achievement of the equilibrium of the metal deacidification reactions, as a result of which the necessary degree of purity of the metal is not reached by nonmetallic inclusions; M.
Цель изобретени - повысить чистоту iv;eталла по неметаллическим включени м.The purpose of the invention is to increase the purity of iv; e metal for non-metallic inclusions.
Это достигаетс тем, что обработку стали кислым или нейтральным шлаком ведут переливом стали со скоростью 20-50 т/мин в ковш со шлаком при высоте падени струи 2-5 м.This is achieved by treating the steel with an acidic or neutral slag with a steel overflow at a speed of 20-50 t / min to a ladle with slag at a jet fall height of 2-5 m.
Сталь переливают при температуре на 10- 40°С выше температуры разливки.Steel is poured at a temperature of 10-40 ° C above the casting temperature.
Пример осупаествлени предлагаемого способа .An example of the proposed method.
Металл выплавл ют в любом сталеплавильном агрегате с основной футеровкой и обрабатывают его во врем выпуска известковоглиноземистым шлаком, затем обработку стали кислым или нейтральным шлаком ведут путем перелива из одиого ковша в другой.The metal is smelted in any steelmaking unit with the main lining and is treated during the production of lime-alumina slag, then the steel is treated with an acidic or neutral slag by transferring from one ladle to another.
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1804247A SU420681A1 (en) | 1972-07-03 | 1972-07-03 | METHOD OF STEEL REFINATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1804247A SU420681A1 (en) | 1972-07-03 | 1972-07-03 | METHOD OF STEEL REFINATION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU420681A1 true SU420681A1 (en) | 1974-03-25 |
Family
ID=20520049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1804247A SU420681A1 (en) | 1972-07-03 | 1972-07-03 | METHOD OF STEEL REFINATION |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU420681A1 (en) |
-
1972
- 1972-07-03 SU SU1804247A patent/SU420681A1/en active
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