For the purpose of mathematical modeling of the process ofstressformation in glass, 6x25x100 mmfloat glasssampleswere tempered. During thetemperingthe change ofstresses and thetemperature ofinner and outer layers of glasswerefilmed witha digital camera.Obtainedresults almost completely coincided with the results obtained by R. Gardon.
The value of microhardness of the surface layers of 6 mm float glass, tempered by contact and by air method by etching in a mixture of fluoride and sulfuric acids, is researched. It was established that the microhardness value depends on the method of tempering and thickness of the etched layer. The optimal parameters of the microhardness measure of 6 mm float glass are selected and thickness of the etched layer which causes the relaxation of residual tensions is indicated.
The change of microhardness values of 6 mm float glass, depending on the measurement conditions were investigated. It was established that the value of microhardness depends on the surface moisture, the load on indentor and duration time. The optimal parameters of microhardness measurement of 6 mm float glass were chosen.
The degree of the baddeleyite-corundum refractories erosion depending on the areas of their location in the glass-making furnace in the float glass production was established. With the use of petrographic analysis the influence of chemical and mineral composition and also temperature and gas environment on corrosion of bacor linings was studied. Due to obtained results the recommendations in relation to the increase of glass-attack resistance of the furnace and its service life length were formulated.