SU358373A1 - METHOD OF MANUFACTURING ALLOYED STEEL - Google Patents
METHOD OF MANUFACTURING ALLOYED STEELInfo
- Publication number
- SU358373A1 SU358373A1 SU1395548A SU1395548A SU358373A1 SU 358373 A1 SU358373 A1 SU 358373A1 SU 1395548 A SU1395548 A SU 1395548A SU 1395548 A SU1395548 A SU 1395548A SU 358373 A1 SU358373 A1 SU 358373A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- steel
- ladle
- alloyed steel
- manufacturing alloyed
- melt
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title description 10
- 239000010959 steel Substances 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000003723 Smelting Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L Calcium fluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Description
Изобретение относитс к черной металлургии , конкретнее к производству легироваииой стали.The invention relates to ferrous metallurgy, more specifically to the production of alloy steel.
Известен способ производства качественной легированной стали, включающий выплавку углеродистого полупродукта в сталеплавильном агрегате, выплавку лигатурного сплава в другом агрегате и последующее рафинирование их в ковше синтетическим щлаком . Известен также способ обработки стали в ковше синтетическим щлаком, в который дополнительно ввод т различные флюсующие добавки.A known method for the production of high-quality alloyed steel, including the smelting of carbon semi-finished product in a steel-making unit, the smelting of a master alloy in another unit and their subsequent refining in a ladle with synthetic sclac. There is also known a method of treating steel in a ladle with synthetic scrap, in which various fluxing additives are additionally introduced.
С целью улучшени качества стали путем уменьшени ее загр зненности неметаллическими включени ми и повышени пластических свойств и ударной в зкости предложен способ, вл ющийс совокупностью известных способов, а именно: смешение в сталеразливочном ковше жидкого стального полупродукта и лигатурного расплава с синтетическим шлаком и присадку в определенной последовательности специальных флюсов (кальцинированной соды, флюорита или содержащих его продуктов, а также окислов и солей щелочных и щелочно-земельных металлов).In order to improve the quality of steel by reducing its contamination with non-metallic inclusions and improving its plastic properties and toughness, a method has been proposed which is a combination of known methods, namely: mixing steel steel and alloy melt with synthetic slag in a pouring ladle sequences of special fluxes (soda ash, fluorite or products containing it, as well as oxides and salts of alkali and alkaline earth metals).
Способ осуществл етс следующим образом . В сталеразливочный ковш из специализированной шлакоплавильной печи выпускают синтетический шлак при температуре 1650- 1700°С в количестве 3-5% от суммарного веса стального полупродукта и лигатурного расплава. Затем этот ковш подают к сталеплавильному агрегату. Выпуск полупродукта из сталеплавильной печи в ковш с синтетическим шлаком провод т одновременно со сливом в этот же ковш лигатурного расплава и введением флюсов, например, кальцинированной соды в количестве 1,5ч-3,0% от веса синтетического шлака.The method is carried out as follows. In a steel-teeming ladle, synthetic slag is produced from a specialized slag-smelting furnace at a temperature of 1650-1700 ° C in an amount of 3-5% of the total weight of the steel semi-finished product and ligature melt. Then this ladle is fed to the steelmaking unit. The semi-product from the steel-smelting furnace into the ladle with synthetic slag is carried out simultaneously with the discharge into the same ladle of melt alloy and the introduction of fluxes, for example, soda ash in the amount of 1.5h-3.0% by weight of synthetic slag.
Предмет изобретени Subject invention
Способ производства легированной стали, включающий выплавку жидкого стального полупродукта в одном агрегате и жидкогоMethod for the production of alloyed steel, including the smelting of liquid steel intermediate in one unit and liquid
лигатурного расплава в другом агрегате, смешение их в ковше с обработкой расплава синтетическим шлаком и использованием флюсов , отличающийс тем, что, с целью повышени качества стали, присадку флюсов проmelt ligature in another unit, mixing them in a ladle with melt processing with synthetic slag and using fluxes, characterized in that, in order to improve the quality of steel, flux additive
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU358373A1 true SU358373A1 (en) |
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