Trubitsyn, M. A.
Published in
Refractories and Industrial Ceramics
Basic material science approaches are considered for developing and manufacturing the lining of kiln trolleys of contemporary ceramic industry kilns. Many years of experience is provided of successful service of aluminosilicate ceramic concretes in heating units of different ceramic production. It is shown that use of ceramic concrete composites co...
Galakhov, A. V.
Published in
Refractories and Industrial Ceramics
Using the model developed, describing sintering and recrystallization in an assembly of particles in contact, occurrence of these processes is analyzed in highly coordinated pores, that are defects in actual inhomogeneous molding of agglomerated powders. The sintering time of these pores to complete density depends both on the configuration paramet...
Perepelitsyn, V. A. Uzberg, L. V. Efimova, G. V. Yakhontova, O. N. Nazmutdinov, V. Z. Ipatov, N. V.
Published in
Refractories and Industrial Ceramics
Results are provided for a study of refractory concrete before and after service in a cementation furnace with the aim of revealing reasons for rapid wear of a concrete block after four months of operation at 850 – 930°C in an endogas atmosphere. It is established that the reason for the rapid loss of concrete strength is destruction of the concret...
Kashcheev, I. D. Zemlyanoi, K. G. Nikiforov, E. A. Klimovskii, A. B. Nesterova, S. A.
Published in
Refractories and Industrial Ceramics
The basic technological parameters of the process of molding by means of extrusion of diatomic articles at OOO Diatomitovye Kombinat are determined, in particular, the composition of the charge, methods of preparation of the charge, and the molding and heat processing regimes. It is shown that addition of chalk to the charge increases the working t...
Suzdal’tsev, E. I. Kharitonov, D. V. Anashkina, A. A.
Published in
Refractories and Industrial Ceramics
Materials are reviewed that are used in manufacturing the forming surfaces of molding units. Choice of the optimum water and gypsum ratio for a gypsum paste is provided and methods are considered for improving gypsum mold quality.
Pivinskii, Yu. E. Dyakin, Pavel V.
Published in
Refractories and Industrial Ceramics
The effect of the composition of original molding systems and firing temperature on the properties of fine-grained (Dmax = 1.5 mm) and medium grain sized (Dmax = 4.0 mm) specimens of compacted corundum ceramic concretes with a corundum-mullite matrix system are studied. Optimum properties (open porosity of 14 – 15%, ultimate strength in compression...
Suvorov, S. A. Kozlov, V. V.
Published in
Refractories and Industrial Ceramics
Percolation of liquid phase in the system melt – solid phase is considered, and a method of determining the percolation line of a melt in a simple state diagram is proposed.
Visloguzova, É. A. Kashcheev, I. D. Serova, L. V. Khoroshikh, M. A.
Published in
Refractories and Industrial Ceramics
Results are provided for a study of the operating conditions of the refractory lining of steel-pouring ladles of OAO Nizhnetagil Metallurgical Combine, that are subject to the corrosive physicochemical action of slag and metal during steel smelting from vanadium-containing raw material. Manufacturing technology is proposed for corundum-periclase-ca...
Bazhin, V. Yu.
Published in
Refractories and Industrial Ceramics
The problem of the service life of cathodic devices used in high-power aluminum electrolytic furnaces (more than 300 kA), a problem that is closely related to the quality and resistance of refractory materials, is discussed. Factors responsible for the destruction of the graphite hearth and refractory heat-insulating layers are considered.
Bel’maz, N. S.
Published in
Refractories and Industrial Ceramics
Information is provided for preparing high-alumina ceramic concretes based on a combined silicate-phosphate binder. Features are revealed for structure formation of the ceramic concrete developed during hardening, drying and firing; probable chemical reactions that occur are indicated.
