SU83280A1 - - Google Patents
Info
- Publication number
- SU83280A1 SU83280A1 SU83280A1 SU 83280 A1 SU83280 A1 SU 83280A1 SU 83280 A1 SU83280 A1 SU 83280A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- iron
- smelting
- furnaces
- cast iron
- low
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
В современных больших доменных печах обыкновенно выплавл етс чугун с содержанием углерода 4-4,5о/о к более. Повышенное содержание углерода в чугуне зат гивает его переделку в сталь и ухудшает механические свойства чугунного лнть .In modern large blast furnaces, cast iron with a carbon content of 4-4.5 o / o to more is usually smelted. The increased carbon content in cast iron inhibits its conversion to steel and impairs the mechanical properties of cast iron.
С целью получени чугуна с содержанием углерода не более Зо/о. предложен способ, состо щ.ий в том, что чугун выплавл ют в печах небольшого объема из шихты, содержащей сырой сидерит типа бакальского с размером кусков 50-80 мм, и плавку ведут форсированным ходом с невысоким нагревом дуть при 500-550°С при частом выпуске чугуна 6-8 раз в сутки.In order to obtain cast iron with a carbon content of not more than 30 / O. The proposed method consists in that the iron is melted in furnaces of small volume from a mixture containing raw siderite of the Bakal type with pieces of 50-80 mm, frequent release of cast iron 6-8 times a day.
Описываемый способ выплавки малоуглеродистого чугуна в доменных печах основан на возможности воздействовать в требуемом направлении на процессы восстановлени руды и науглероживани чугуна в самой доменной печи.The described method of smelting low-carbon iron in blast furnaces is based on the ability to act in the required direction on the processes of ore reduction and carbonization of iron in the blast furnace itself.
Предмет изобретени Subject invention
Claims (2)
Family
ID=
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