FIELD: metallurgy, namely continuous casting processes.
SUBSTANCE: method for continuous casting of steel by " melting on melting" process comprises steps of feeding into molds slag forming mixture containing carbon, fluorine and oxides of Ca, Si, Mg, Al, Fe, Mn, Na, K and Li for forming on surface of melt metal protecting liquid slag; at casting process monitoring alkalinity of protection slag; in order to realize it, taking samples of slag from metal heel; determining percentage content of oxides of Ca, Si and Mg in them; at alkalinity of slag (CaO+MgO)/SiO > 1.35 changing slag forming mixture in molds and intermediate ladle; after stabilizing alkalinity of slag in range 0.6 - 1.2 going on casting process.
EFFECT: improved quality of continuously cast billets, lowered number of emergency metal breakouts through envelope of ingots under molds.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SLAG FORMING MIXTURE FOR CONTINUOUS STEEL CASTING | 1992 |
|
RU2044777C1 |
| SLAG-FORMING MIXTURE FOR CONTINUOUS POURING OF STEEL | 2008 |
|
RU2371280C1 |
| SLAG-FORMING MIXTURE FOR STEEL CONTINUOUS CASTING | 1999 |
|
RU2165822C1 |
| SLAG-FORMING MIX FOR CONTINUOUSLY CASTING STEEL | 2003 |
|
RU2238820C1 |
| HEAT-INSULATING MIXTURE FOR CONTINUOUS CASTING OF STEEL | 1999 |
|
RU2175279C2 |
| SLAG FORMING MIXTURE FOR IN-MOLD PROTECTION OF STEEL AT PERITECTIC CONVERSION DURING BATCH CONTINUOUS CASTING OF STEEL | 2006 |
|
RU2308351C1 |
| SLAG-FORMING MIXTURE FOR STEEL CONTINUOUS CASTING | 1999 |
|
RU2164191C1 |
| CONTINUOUS CASTING METHOD | 2002 |
|
RU2210457C1 |
| HEAT INSULATION SLAG-GENERATING MIXTURE | 2008 |
|
RU2380194C2 |
| METHOD OF METAL CONTINUOUS CASTING | 0 |
|
SU1806040A3 |
