MAGNESIUM MASS FOR LINING OF METALLURGICAL UNITS Russian patent published in 2000 - IPC

FIELD: refractory industry; applicable in repairs and lining of metallurgical units including intermediate ladles. SUBSTANCE: magnesian mass including periclase-containing filler and binder contains binder in form of sodium polyphosphate and sodium metasilicate, and/or magnesium sulfate, bentonite, silicon dioxide and inorganic fiber with the following amounts of components, wt.%: periclase-containing filler of 1-0.063 mm fraction 57-75; and fraction below 0.063 mm 17-31; sodium polyphosphate 0.2-0.8; sodium metasilicate and/or magnesium sulfate 1.7-3.5; bentonite of 0.50-0 mm fraction 1.7-3.5; silicon dioxide of fraction below 0.01 mm 1.5-3.4; inorganic fiber 0.5-1.3. EFFECT: stabilized linear sizes and strength characteristics of offered mass in process of its heating, increased adhesion of mass to lining surface. 2 tbl, 1 ex