SU459524A1 - Method for producing carbon-free ferrochrome - Google Patents
Method for producing carbon-free ferrochromeInfo
- 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
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
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.
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) |
-
1973
- 1973-06-18 SU SU1943891A patent/SU459524A1/en active
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