MASS FOR THE BASIC REFRACTORY ARTICLE MAKING Russian patent published in 1997 - IPC

FIELD: ferrous metallurgy. SUBSTANCE: mass has, wt.-%: periclase powder 40-90; aluminomagnesium spinel of fraction 0.3 mm containing fraction less 0.1 mm 25% (not above) obtained by pouring melting at the rate of pouring providing caking rate 0.05-0.55 that is determined by formula: K = where: П_o - total porosity of sample before roasting, %; П - total porosity of sample after roasting, % 5-30; chrome-containing component 5-30. Properties: compression strength limit is 62.1-66.1 H/мм², porosity is 15.5-16.2%, slag-corrosion coefficient is 4.8-5.1%. Mass is used for lining the melting equipments in ferrous and nonferrous metallurgy. EFFECT: enhanced quality of mass. 3 tbl