COMPOSITION AND METHOD FOR FORMING OF CARBONIZED REFRACTORY BODY Russian patent published in 2005 - IPC

FIELD: refractory body technology, in particular refractory bodies for facing of metallurgical aggregates.

SUBSTANCE: claimed carbonized refractory body contains (mass %): alumina-magnesia grained filler 19.0-26.0; fine ground complex filler 15.0-35.0; plasticizer 0.9-1.6; carbon-containing resin 2.9-3.8; and balance: grained periclase filler. Said fine ground complex filler contains (mass %): periclase 50.0-81.0; graphite 11.0-27.0; corundum 3.0-9.0; zirconium dioxide 2.0-6.0; metal Al 3.0-8.0. Carbonized refractory body is obtained by introduction of alumina-magnesia grained filler into stream of grained periclase filler; adding of plasticizer; capsulation of grain surface and subsequent introduction of fine ground complex, carbon-containing resin filler, followed by agitation to provide carbonized body with apparent density of 1.65-2.0 g/cm³. Obtained body is discharged from agitator and seasoned for at least 3 h/ Then articles are formed and heat treated at temperature higher than 150⁰C.

EFFECT: refractory bodies with improved quality.

3 cl, 6 ex, 1 tbl