Impact of borosilicate glass

In the process of producing high borosilicate glass by the float method, the amount of surface tin infiltration, the valence state of tin infiltration and the depth of tin infiltration have a greater impact on the quality of float glass and the deep processing of the glass, and the amount of tin infiltration seriously affects the quality of deep processing of the glass .

Compared with high borosilicate glass and soda-lime silica glass, if the temperature at the front end of the tin bath is increased by about 300°C, the vapor pressure of tin is increased by 142 times. In this way, when the float process produces high borosilicate glass, the glass liquid seems to be in a tin vapor bath. At the same time, because the temperature of producing high borosilicate glass is increased by several hundred degrees, the activity of tin ions is greatly enhanced, and tin ions penetrate into the glass electrode. The surface capacity is greatly enhanced, and the possibility of increasing the amount of tin infiltration is greatly increased. The influence of tin infiltration on the change of the glass surface properties is greater. This is one of the problems that need to be solved by the float glass process.