The capillary forces and crystallization strength of the components of the glass batch are studied when it is moistened with solvents of carbonate, sodium sulfate and other components. The data obtained can be used in solving problems related to the moistening of glass mixtures. Il. 3, bibliography: 1 title.
The urgency of the study of the hydrodynamics of the melting basin of a glass-making furnace has been substantiated. The basic equations of the numerical model of the basin hydrodynamics are presented. The results of calculating the temperature fields and streamlines for a glass-making furnace with a capacity of 300 tons per day are given. The adequacy of the calculation results to the real operating conditions of the furnace is shown. The developed model of the melting basin hydrodynamics can be used to solve applied problems of designing glass-melting furnaces. Il. 5, bibliography: 12 titles.
Using the concepts of structural elements, the interaction between which determines the properties of glasses, the regularities of the dependence of the refractive index of binary glasses on the composition, some results of mass spectrometric studies of vapors of glasses of the Rb 2 OB 2 O 3 , as well as the results of studies on small-angle X-ray scattering of glasses of the systems Na 2 O - SiO 2 and Li 2 O - SiO 2 . Methods for calculating the refractive index of binary glasses depending on their composition and structure are proposed, examples of such calculations for alkali-silicate glasses are given. Tab. 1, ill. 2, bibliography: 6 titles.
The glass hardening process is considered from the fundamental positions of physicochemical kinetics. Provisions are being developed on the appearance of "hardening nuclei" on the surface, the formation of "hardening layers" and their advancement into the volume of glass. It is shown that the level of thermal transparency of colored glasses can characterize the forces of interaction of coloring complexes with the main silicon-oxygen formations of glass and, therefore, affect the change in viscosity during hardening. The developed theoretical concepts are in good agreement with the experimental and production data. Il. 3, bibliography: 12 titles.
The practical experience of changing the transmittance of glass for screens of electronic devices on an operating bath furnace is considered. Formulas for calculations are proposed, using which it is possible to ensure the minimum periods for the output of non-standard products. Il. 2.
A significant number of works devoted to the study of glass hardening during molding are systematized. The questions of the influence of the basic composition of glasses, their thermal transparency, temporary and structural factors on the hardening processes are considered. The article also reflects the productivity of glasses and the basic conditions for mechanized molding of glass products. Il. 3, bibliography: 30 titles.
The dynamics of the interaction of thin sol-gel films with acid solutions is shown. It was found that in this case two oppositely directed processes take place. Swelling increases and dissolution decreases the thickness of the coatings. The effect of acid concentration and etching duration on these phenomena is described. The change in the refractive index of the films after interaction with an aggressive medium is estimated and explained. Tab. 2, ill. 2, bibliography: 4 titles.
A new autoclave-free technology for producing liquid glass from lump silicate has been developed. A comparative analysis of glass made by the developed method with the product obtained as a result of autoclave dissolution has been carried out. It has been established that, in terms of technological properties, liquid glass produced by the proposed technology is similar to the product of autoclave dissolution. Tab. 2, bibliography: 5 titles.
A method of melting glass in a direct mono-uniform thin flow from a mechanochemically activated charge is proposed, which allows obtaining a homogeneous defect-free glass melt and intensifying all stages of the glass-making process. Il. 2.
A method of constructing and implementing a zonal mathematical model of heat transfer in a glass-making furnace with a horseshoe-shaped flame direction, with a capacity of 300 t / day, is considered. The boundary conditions of modeling are considered in detail. The results of calculating the external heat transfer and hydrodynamics of the furnace pool, as well as the regression equations for the temperature fields for the refractory masonry of the flame space and the surface of the melt are presented. Il. 5, bibliography: 5 titles.
