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RU97108282A - METHOD FOR REDUCING LOW Manganese Cast Iron - Google Patents

METHOD FOR REDUCING LOW Manganese Cast Iron

Info

Publication number
RU97108282A
RU97108282A RU97108282/02A RU97108282A RU97108282A RU 97108282 A RU97108282 A RU 97108282A RU 97108282/02 A RU97108282/02 A RU 97108282/02A RU 97108282 A RU97108282 A RU 97108282A RU 97108282 A RU97108282 A RU 97108282A
Authority
RU
Russia
Prior art keywords
cast iron
lime
slag
purge
sio
Prior art date
Application number
RU97108282/02A
Other languages
Russian (ru)
Other versions
RU2118375C1 (en
Inventor
А.К. Мартыненко
М.Г. Королев
В.С. Щелканов
В.П. Хайдуков
И.В. Сафонов
Н.М. Караваев
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
Filing date
Publication date
Application filed by Акционерное общество "Новолипецкий металлургический комбинат" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU97108282A priority Critical patent/RU2118375C1/en
Priority claimed from RU97108282A external-priority patent/RU2118375C1/en
Application granted granted Critical
Publication of RU2118375C1 publication Critical patent/RU2118375C1/en
Publication of RU97108282A publication Critical patent/RU97108282A/en

Links

Claims (2)

1. Способ передела низкомарганцовистого чугуна в конвертере, включающий продувку чугуна кислородом, присадку извести и железооксидных материалов, отличающийся тем, что перед заливкой чугуна присаживают железооксидный материал в виде углеродсодержащего комплексного флюса и известь из расчета получения основности шлака CaO/SiO2=0,2 к моменту окисления кремния, содержащегося в чугуне и отношении FeO/SiO2 в шлаке, равным 0,3.1. A method of redistributing low-manganese cast iron in a converter, including blowing cast iron with oxygen, an additive of lime and iron oxide materials, characterized in that before casting iron material is added in the form of a carbon-containing complex flux and lime, based on the calculation of the basicity of slag CaO / SiO 2 = 0.2 to the time of oxidation of silicon contained in cast iron and the ratio of FeO / SiO 2 in the slag equal to 0.3. 2. Способ по п.1, отличающийся тем, что после устойчивого зажигания ванны продувку ведут в жестком режиме при нижнем положении фурмы над уровнем металла в спокойном состоянии и для получения заданной конечной основности шлака присаживают известь двумя равными порциями в первой половине продувки. 2. The method according to claim 1, characterized in that after stable ignition of the bath, the purge is carried out in hard mode with the tuyeres lowered above the metal level in a calm state and lime is planted in two equal portions in the first half of the purge to obtain a given final basicity of slag.
RU97108282A 1997-05-20 1997-05-20 Low-manganese cast iron conversion process in converter RU2118375C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97108282A RU2118375C1 (en) 1997-05-20 1997-05-20 Low-manganese cast iron conversion process in converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97108282A RU2118375C1 (en) 1997-05-20 1997-05-20 Low-manganese cast iron conversion process in converter

Publications (2)

Publication Number Publication Date
RU2118375C1 RU2118375C1 (en) 1998-08-27
RU97108282A true RU97108282A (en) 1999-01-10

Family

ID=20193144

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97108282A RU2118375C1 (en) 1997-05-20 1997-05-20 Low-manganese cast iron conversion process in converter

Country Status (1)

Country Link
RU (1) RU2118375C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2179586C1 (en) * 2000-11-09 2002-02-20 ОАО "Западно-Сибирский металлургический комбинат" Method for making steel in oxygen converter
RU2280081C1 (en) * 2005-01-11 2006-07-20 Открытое акционерное общество "Магнитогорский металлургический комбинат" Low-manganese cast iron conversion method in converter
RU2380429C1 (en) * 2008-12-29 2010-01-27 ФГУП "Центральный научно-исследовательский институт черной металлургии имени И.П. Бардина" Repartition method of low-manganese cast iron in converter with preheating of scrap

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1507826A1 (en) * 1987-12-22 1989-09-15 Липецкий политехнический институт Method of producing complex flux

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