Experimental data on the features of the flow of molten glass at the beginning of the cold part of the furnace behind the obstacle and in front of the working zone when using mixers on industrial glass furnaces are presented. It has been established that to eliminate coarse streaks and layers, it is necessary to increase the gradient of the flow rates of the molten glass by 2 orders of magnitude in comparison with natural homogenization. This is achieved most simply and effectively by mechanical stirring of the molten glass. Tab. 1, ill. 3, bibliography: 11 titles.
The use of a plasma torch at various stages of glass production - synthesis, polishing, cutting and decoration is considered. The nature of the appearance of gas inclusions in glass during treatment with nitrogen and argon plasma has been investigated. Tab. 1, ill. 2, bibliography: 18 titles.
The results of the studies carried out explain the mechanism of the physicochemical interaction of glass ingredients and barrier silica films and can be used to improve the reflective performance of glasses modified with sol-gel coatings. 1, ill. 1, bibliography: 2 titles.
The number and shape of fragments of a damaged sample of tempered sheet glass were determined by means of an experiment. Tab. 1, ill. 1, bibliography: 1 titles.
On the basis of the ICS model, a method is proposed for calculating the change in the geometric parameters of curved sheet glass during transportation on a roller conveyor. This technique makes it possible to theoretically determine not only the shape of the product after transportation, but also the characteristics of the process, based on the required level of deformation. Il. 5, bibliography: 3 titles.
Based on the analysis of patent information, scientific and technical literature and developments of the Saratov Institute of Glass, the influence of additives and impurities in tin on the quality of float glass was determined. The mechanism of action of an effective metal additive has been established. A number of activities of impurity components in tin with respect to oxygen and sulfur has been compiled, on the basis of which it is possible to evaluate and predict their influence on the processes of interaction of tin with glass and to control the quality of glass. Bibliography: 7 titles.
The spectra of induced absorption and their relaxation are analyzed, including the behavior of the spectral hole in the region of the exciton band. A model of photochromism as a process of formation of paired defects in a CuCl microcrystal and radiation color centers of the glass matrix on both sides of the microcrystal - glass interface is proposed. Il. 3, bibliography: 6 titles.
The information on high-temperature IR absorption of some glasses published in various literary sources is summarized. The results are supplemented by data from our own research. To solve the problems of radiation-conductive heat transfer, it is proposed to use the integral absorption coefficient calculated for the analyzed glass compositions. The resulting "bank" of data will make it possible to predict the integral absorption of glasses containing some transition elements and, first of all, iron. Tab. 1, ill. 5, bibliography: 7 titles.
The experience of more than ten years of research by the authors both on industrial glass-melting furnaces of various designs and on the basis of analysis of the results of mathematical modeling of heat transfer processes in the flame space of these furnaces is generalized. For mathematical modeling, the most perfect zonal method for calculating heat transfer was used. Recommendations for the rational organization of combustion of various types of fuel in glass furnaces are given. Il. 3, bibliography: 14 titles.
An automated line for the production of optical elements (screens, cones) for picture tubes was created. New mold equipment has been developed and technological parameters for obtaining screens and cones with a diagonal of 12 cm have been worked out. Table. 1, ill. 4.
