SU459524A1 - Method for producing carbon-free ferrochrome - Google Patents

Method for producing carbon-free ferrochrome

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Publication number
SU459524A1
SU459524A1 SU1943891A SU1943891A SU459524A1 SU 459524 A1 SU459524 A1 SU 459524A1 SU 1943891 A SU1943891 A SU 1943891A SU 1943891 A SU1943891 A SU 1943891A SU 459524 A1 SU459524 A1 SU 459524A1
Authority
SU
USSR - Soviet Union
Prior art keywords
producing carbon
ferrochrome
metal
free
free ferrochrome
Prior art date
Application number
SU1943891A
Other languages
Russian (ru)
Inventor
Василий Павлович Нахабин
Анатолий Яковлевич Бродский
Александр Александрович Королев
Валерий Данилович Нарыжный
Владимир Иванович Кулинич
Ольга Сергеевна Бобкова
Антон Севостьянович Гертнер
Original Assignee
Серовский Завод Ферросплавов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Серовский Завод Ферросплавов filed Critical Серовский Завод Ферросплавов
Priority to SU1943891A priority Critical patent/SU459524A1/en
Application granted granted Critical
Publication of SU459524A1 publication Critical patent/SU459524A1/en

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Description

Жидкий феррохром вакуумировали в вакуумкамере при давлении 80-100 мм рт. ст. в течение 4-7 минут, а затем залили в металлическую изложницу со шлаком следующего химического состава СггОз-3,8%, СаО-46,4,%, MgO-14,2%, ЗЮг-28,3%, АЬОз-7,1%.Liquid ferrochrome was evacuated in a vacuum chamber at a pressure of 80-100 mm Hg. Art. for 4-7 minutes, and then poured into a metal mold with a slag of the following chemical composition of CrH2-3.8%, CaO-46.4,%, MgO-14.2%, Su2-28.3%, AlF-7 ,one%.

Сравнительные качественные показатели по содержанию газов и неметаллических включений в феррохроме, полученному по известному и предлагаемому способам приведены в таблице:Comparative quality indicators for the content of gases and non-metallic inclusions in ferrochrome, obtained by the known and proposed methods are shown in the table:

Кроме того, слиток металла, полученный по описанному способу, отличаетс  более высокой плотностью и меньшей окисленной поверхностью .In addition, the metal ingot obtained by the described method is characterized by a higher density and a lower oxidized surface.

Предмет изобретени Subject invention

Способ получени  безуглеродистого феррохрома путем силикотермического восстановлени  металла из рудноизвесткового расплаваThe method of obtaining carbon-free ferrochrome by silicothermic reduction of metal from ore-limestone melt

кремииисодержаш,им восстановителем вне печи и разливку металла под слоем шлака, отличаюшийс  тем, что, с целью повышени  качества металла и снижени  потерь металла , расплав перед разливкой вакуумируют при давлении 80-100 мм рт. ст. в течение 4-7 мин, затем заливают в изложницу с температурой 1670-1770°С при температуре шлака 1650-1800°С и отношении объема металла к объему шлака 0,4-0,8.Cremery containing it with a reducing agent outside the furnace and casting the metal under a layer of slag, characterized in that, in order to improve the quality of the metal and reduce the loss of the metal, the melt is evacuated before casting at a pressure of 80-100 mm Hg. Art. within 4-7 minutes, then poured into the mold with a temperature of 1670-1770 ° C at a slag temperature of 1650-1800 ° C and the ratio of the volume of metal to the volume of slag 0.4-0.8.

SU1943891A 1973-06-18 1973-06-18 Method for producing carbon-free ferrochrome SU459524A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1943891A SU459524A1 (en) 1973-06-18 1973-06-18 Method for producing carbon-free ferrochrome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1943891A SU459524A1 (en) 1973-06-18 1973-06-18 Method for producing carbon-free ferrochrome

Publications (1)

Publication Number Publication Date
SU459524A1 true SU459524A1 (en) 1975-02-05

Family

ID=20559952

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1943891A SU459524A1 (en) 1973-06-18 1973-06-18 Method for producing carbon-free ferrochrome

Country Status (1)

Country Link
SU (1) SU459524A1 (en)

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