The processes of molding and vibromolding of laboratory samples and large-sized nested blocks for intermediate ladles are studied using bauxite mixtures of the same composition. The ceramic concretes obtained exhibit comparable porosity and strength characteristics, namely, substantial starting strength, significant strengthening upon low-temperature heat treatment, and insignificant shrinkage in service. An effect of substantial grinding of the bauxite filler in the structure of the mold is found even under conditions of a relatively low (25 MPa) molding pressure for nested-block molding on a friction press.
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